Management of nematocysts in the alimentary tract and in cnidosacs of the aeolid nudibranch gastropod Cratena peregrina
Abstract The nudibranch gastropod Cratena peregrina (Opisthobranchia: Aeolidaceae), when feeding on polyps of the hydrozoan Eudendrium racemosum (Cnidaria: Anthoathecata), devours masses of small microbasic eurytele and holotrichous isorhiza nematocysts. Large proportions of these nematocysts were f...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Martin, R. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2003 |
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| Schlagwörter: |
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| Anmerkung: |
© Springer-Verlag 2003 |
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| Übergeordnetes Werk: |
Enthalten in: Marine biology - Berlin : Springer, 1967, 143(2003), 3 vom: 27. Mai, Seite 533-541 |
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| Übergeordnetes Werk: |
volume:143 ; year:2003 ; number:3 ; day:27 ; month:05 ; pages:533-541 |
| Links: |
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| DOI / URN: |
10.1007/s00227-003-1078-8 |
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SPR00251821X |
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| 520 | |a Abstract The nudibranch gastropod Cratena peregrina (Opisthobranchia: Aeolidaceae), when feeding on polyps of the hydrozoan Eudendrium racemosum (Cnidaria: Anthoathecata), devours masses of small microbasic eurytele and holotrichous isorhiza nematocysts. Large proportions of these nematocysts were found undischarged in the alimentary tracts of the snails. Feeding experiments in this study tracked the fate of nematocysts as they passed through the alimentary canal to the digestive gland in the dorsal appendages, the cerata, to the cnidosacs, and finally in the faeces. In digestive cells, many structurally intact nematocysts were present in large phagosomes that remained unaffected even after 2 days fasting, and phagosomes containing nematocysts were found in the faeces. Thus, it is inferred that fusion of nematocyst-containing phagosomes with lysosomes and subsequent digestion of nematocysts is blocked. Masses of exposed, undigested and structurally intact nematocysts were discarded in the faeces. In the tips of the cerata, other nematocysts were phagocytosed by cnidophages and stored in the cnidosacs. After release, in contact with seawater, cnidosac nematocysts were able to discharge. When cnidophore tentacles of E. racemosum with only holotrichous isorhizas were fed to the snails, the isorhizas arrived in the cnidosacs about 2 h after feeding and mixed with existing small euryteles. Some cnidosacs also contained very large microbasic eurytele or large macrobasic eurytele nematocysts, possibly from Eudendrium ramosum and Eudendrium glomeratum, respectively. This indicates that the various types of nematocysts from food were all incorporated into the cnidosacs. Evidence for a selection process or digestion of a certain nematocyst type in the cnidophages was not obtained. It is concluded that a large proportion of the nematocysts ingested with the food are not digested, but are eliminated, structurally and functionally intact, via the alimentary canal and the tips of the cerata. | ||
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10.1007/s00227-003-1078-8 doi (DE-627)SPR00251821X (SPR)s00227-003-1078-8-e DE-627 ger DE-627 rakwb eng Martin, R. verfasserin aut Management of nematocysts in the alimentary tract and in cnidosacs of the aeolid nudibranch gastropod Cratena peregrina 2003 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag 2003 Abstract The nudibranch gastropod Cratena peregrina (Opisthobranchia: Aeolidaceae), when feeding on polyps of the hydrozoan Eudendrium racemosum (Cnidaria: Anthoathecata), devours masses of small microbasic eurytele and holotrichous isorhiza nematocysts. Large proportions of these nematocysts were found undischarged in the alimentary tracts of the snails. Feeding experiments in this study tracked the fate of nematocysts as they passed through the alimentary canal to the digestive gland in the dorsal appendages, the cerata, to the cnidosacs, and finally in the faeces. In digestive cells, many structurally intact nematocysts were present in large phagosomes that remained unaffected even after 2 days fasting, and phagosomes containing nematocysts were found in the faeces. Thus, it is inferred that fusion of nematocyst-containing phagosomes with lysosomes and subsequent digestion of nematocysts is blocked. Masses of exposed, undigested and structurally intact nematocysts were discarded in the faeces. In the tips of the cerata, other nematocysts were phagocytosed by cnidophages and stored in the cnidosacs. After release, in contact with seawater, cnidosac nematocysts were able to discharge. When cnidophore tentacles of E. racemosum with only holotrichous isorhizas were fed to the snails, the isorhizas arrived in the cnidosacs about 2 h after feeding and mixed with existing small euryteles. Some cnidosacs also contained very large microbasic eurytele or large macrobasic eurytele nematocysts, possibly from Eudendrium ramosum and Eudendrium glomeratum, respectively. This indicates that the various types of nematocysts from food were all incorporated into the cnidosacs. Evidence for a selection process or digestion of a certain nematocyst type in the cnidophages was not obtained. It is concluded that a large proportion of the nematocysts ingested with the food are not digested, but are eliminated, structurally and functionally intact, via the alimentary canal and the tips of the cerata. Digestive Gland (dpeaa)DE-He213 Alimentary Tract (dpeaa)DE-He213 Alimentary Canal (dpeaa)DE-He213 Digestive Cell (dpeaa)DE-He213 Intracellular Digestion (dpeaa)DE-He213 Enthalten in Marine biology Berlin : Springer, 1967 143(2003), 3 vom: 27. Mai, Seite 533-541 (DE-627)25377067X (DE-600)1459413-4 1432-1793 nnns volume:143 year:2003 number:3 day:27 month:05 pages:533-541 https://dx.doi.org/10.1007/s00227-003-1078-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_636 GBV_ILN_647 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4277 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 143 2003 3 27 05 533-541 |
| spelling |
10.1007/s00227-003-1078-8 doi (DE-627)SPR00251821X (SPR)s00227-003-1078-8-e DE-627 ger DE-627 rakwb eng Martin, R. verfasserin aut Management of nematocysts in the alimentary tract and in cnidosacs of the aeolid nudibranch gastropod Cratena peregrina 2003 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag 2003 Abstract The nudibranch gastropod Cratena peregrina (Opisthobranchia: Aeolidaceae), when feeding on polyps of the hydrozoan Eudendrium racemosum (Cnidaria: Anthoathecata), devours masses of small microbasic eurytele and holotrichous isorhiza nematocysts. Large proportions of these nematocysts were found undischarged in the alimentary tracts of the snails. Feeding experiments in this study tracked the fate of nematocysts as they passed through the alimentary canal to the digestive gland in the dorsal appendages, the cerata, to the cnidosacs, and finally in the faeces. In digestive cells, many structurally intact nematocysts were present in large phagosomes that remained unaffected even after 2 days fasting, and phagosomes containing nematocysts were found in the faeces. Thus, it is inferred that fusion of nematocyst-containing phagosomes with lysosomes and subsequent digestion of nematocysts is blocked. Masses of exposed, undigested and structurally intact nematocysts were discarded in the faeces. In the tips of the cerata, other nematocysts were phagocytosed by cnidophages and stored in the cnidosacs. After release, in contact with seawater, cnidosac nematocysts were able to discharge. When cnidophore tentacles of E. racemosum with only holotrichous isorhizas were fed to the snails, the isorhizas arrived in the cnidosacs about 2 h after feeding and mixed with existing small euryteles. Some cnidosacs also contained very large microbasic eurytele or large macrobasic eurytele nematocysts, possibly from Eudendrium ramosum and Eudendrium glomeratum, respectively. This indicates that the various types of nematocysts from food were all incorporated into the cnidosacs. Evidence for a selection process or digestion of a certain nematocyst type in the cnidophages was not obtained. It is concluded that a large proportion of the nematocysts ingested with the food are not digested, but are eliminated, structurally and functionally intact, via the alimentary canal and the tips of the cerata. Digestive Gland (dpeaa)DE-He213 Alimentary Tract (dpeaa)DE-He213 Alimentary Canal (dpeaa)DE-He213 Digestive Cell (dpeaa)DE-He213 Intracellular Digestion (dpeaa)DE-He213 Enthalten in Marine biology Berlin : Springer, 1967 143(2003), 3 vom: 27. Mai, Seite 533-541 (DE-627)25377067X (DE-600)1459413-4 1432-1793 nnns volume:143 year:2003 number:3 day:27 month:05 pages:533-541 https://dx.doi.org/10.1007/s00227-003-1078-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_636 GBV_ILN_647 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4277 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 143 2003 3 27 05 533-541 |
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10.1007/s00227-003-1078-8 doi (DE-627)SPR00251821X (SPR)s00227-003-1078-8-e DE-627 ger DE-627 rakwb eng Martin, R. verfasserin aut Management of nematocysts in the alimentary tract and in cnidosacs of the aeolid nudibranch gastropod Cratena peregrina 2003 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag 2003 Abstract The nudibranch gastropod Cratena peregrina (Opisthobranchia: Aeolidaceae), when feeding on polyps of the hydrozoan Eudendrium racemosum (Cnidaria: Anthoathecata), devours masses of small microbasic eurytele and holotrichous isorhiza nematocysts. Large proportions of these nematocysts were found undischarged in the alimentary tracts of the snails. Feeding experiments in this study tracked the fate of nematocysts as they passed through the alimentary canal to the digestive gland in the dorsal appendages, the cerata, to the cnidosacs, and finally in the faeces. In digestive cells, many structurally intact nematocysts were present in large phagosomes that remained unaffected even after 2 days fasting, and phagosomes containing nematocysts were found in the faeces. Thus, it is inferred that fusion of nematocyst-containing phagosomes with lysosomes and subsequent digestion of nematocysts is blocked. Masses of exposed, undigested and structurally intact nematocysts were discarded in the faeces. In the tips of the cerata, other nematocysts were phagocytosed by cnidophages and stored in the cnidosacs. After release, in contact with seawater, cnidosac nematocysts were able to discharge. When cnidophore tentacles of E. racemosum with only holotrichous isorhizas were fed to the snails, the isorhizas arrived in the cnidosacs about 2 h after feeding and mixed with existing small euryteles. Some cnidosacs also contained very large microbasic eurytele or large macrobasic eurytele nematocysts, possibly from Eudendrium ramosum and Eudendrium glomeratum, respectively. This indicates that the various types of nematocysts from food were all incorporated into the cnidosacs. Evidence for a selection process or digestion of a certain nematocyst type in the cnidophages was not obtained. It is concluded that a large proportion of the nematocysts ingested with the food are not digested, but are eliminated, structurally and functionally intact, via the alimentary canal and the tips of the cerata. Digestive Gland (dpeaa)DE-He213 Alimentary Tract (dpeaa)DE-He213 Alimentary Canal (dpeaa)DE-He213 Digestive Cell (dpeaa)DE-He213 Intracellular Digestion (dpeaa)DE-He213 Enthalten in Marine biology Berlin : Springer, 1967 143(2003), 3 vom: 27. Mai, Seite 533-541 (DE-627)25377067X (DE-600)1459413-4 1432-1793 nnns volume:143 year:2003 number:3 day:27 month:05 pages:533-541 https://dx.doi.org/10.1007/s00227-003-1078-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_636 GBV_ILN_647 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4277 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 143 2003 3 27 05 533-541 |
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10.1007/s00227-003-1078-8 doi (DE-627)SPR00251821X (SPR)s00227-003-1078-8-e DE-627 ger DE-627 rakwb eng Martin, R. verfasserin aut Management of nematocysts in the alimentary tract and in cnidosacs of the aeolid nudibranch gastropod Cratena peregrina 2003 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag 2003 Abstract The nudibranch gastropod Cratena peregrina (Opisthobranchia: Aeolidaceae), when feeding on polyps of the hydrozoan Eudendrium racemosum (Cnidaria: Anthoathecata), devours masses of small microbasic eurytele and holotrichous isorhiza nematocysts. Large proportions of these nematocysts were found undischarged in the alimentary tracts of the snails. Feeding experiments in this study tracked the fate of nematocysts as they passed through the alimentary canal to the digestive gland in the dorsal appendages, the cerata, to the cnidosacs, and finally in the faeces. In digestive cells, many structurally intact nematocysts were present in large phagosomes that remained unaffected even after 2 days fasting, and phagosomes containing nematocysts were found in the faeces. Thus, it is inferred that fusion of nematocyst-containing phagosomes with lysosomes and subsequent digestion of nematocysts is blocked. Masses of exposed, undigested and structurally intact nematocysts were discarded in the faeces. In the tips of the cerata, other nematocysts were phagocytosed by cnidophages and stored in the cnidosacs. After release, in contact with seawater, cnidosac nematocysts were able to discharge. When cnidophore tentacles of E. racemosum with only holotrichous isorhizas were fed to the snails, the isorhizas arrived in the cnidosacs about 2 h after feeding and mixed with existing small euryteles. Some cnidosacs also contained very large microbasic eurytele or large macrobasic eurytele nematocysts, possibly from Eudendrium ramosum and Eudendrium glomeratum, respectively. This indicates that the various types of nematocysts from food were all incorporated into the cnidosacs. Evidence for a selection process or digestion of a certain nematocyst type in the cnidophages was not obtained. It is concluded that a large proportion of the nematocysts ingested with the food are not digested, but are eliminated, structurally and functionally intact, via the alimentary canal and the tips of the cerata. Digestive Gland (dpeaa)DE-He213 Alimentary Tract (dpeaa)DE-He213 Alimentary Canal (dpeaa)DE-He213 Digestive Cell (dpeaa)DE-He213 Intracellular Digestion (dpeaa)DE-He213 Enthalten in Marine biology Berlin : Springer, 1967 143(2003), 3 vom: 27. Mai, Seite 533-541 (DE-627)25377067X (DE-600)1459413-4 1432-1793 nnns volume:143 year:2003 number:3 day:27 month:05 pages:533-541 https://dx.doi.org/10.1007/s00227-003-1078-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_636 GBV_ILN_647 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4277 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 143 2003 3 27 05 533-541 |
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10.1007/s00227-003-1078-8 doi (DE-627)SPR00251821X (SPR)s00227-003-1078-8-e DE-627 ger DE-627 rakwb eng Martin, R. verfasserin aut Management of nematocysts in the alimentary tract and in cnidosacs of the aeolid nudibranch gastropod Cratena peregrina 2003 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag 2003 Abstract The nudibranch gastropod Cratena peregrina (Opisthobranchia: Aeolidaceae), when feeding on polyps of the hydrozoan Eudendrium racemosum (Cnidaria: Anthoathecata), devours masses of small microbasic eurytele and holotrichous isorhiza nematocysts. Large proportions of these nematocysts were found undischarged in the alimentary tracts of the snails. Feeding experiments in this study tracked the fate of nematocysts as they passed through the alimentary canal to the digestive gland in the dorsal appendages, the cerata, to the cnidosacs, and finally in the faeces. In digestive cells, many structurally intact nematocysts were present in large phagosomes that remained unaffected even after 2 days fasting, and phagosomes containing nematocysts were found in the faeces. Thus, it is inferred that fusion of nematocyst-containing phagosomes with lysosomes and subsequent digestion of nematocysts is blocked. Masses of exposed, undigested and structurally intact nematocysts were discarded in the faeces. In the tips of the cerata, other nematocysts were phagocytosed by cnidophages and stored in the cnidosacs. After release, in contact with seawater, cnidosac nematocysts were able to discharge. When cnidophore tentacles of E. racemosum with only holotrichous isorhizas were fed to the snails, the isorhizas arrived in the cnidosacs about 2 h after feeding and mixed with existing small euryteles. Some cnidosacs also contained very large microbasic eurytele or large macrobasic eurytele nematocysts, possibly from Eudendrium ramosum and Eudendrium glomeratum, respectively. This indicates that the various types of nematocysts from food were all incorporated into the cnidosacs. Evidence for a selection process or digestion of a certain nematocyst type in the cnidophages was not obtained. It is concluded that a large proportion of the nematocysts ingested with the food are not digested, but are eliminated, structurally and functionally intact, via the alimentary canal and the tips of the cerata. Digestive Gland (dpeaa)DE-He213 Alimentary Tract (dpeaa)DE-He213 Alimentary Canal (dpeaa)DE-He213 Digestive Cell (dpeaa)DE-He213 Intracellular Digestion (dpeaa)DE-He213 Enthalten in Marine biology Berlin : Springer, 1967 143(2003), 3 vom: 27. Mai, Seite 533-541 (DE-627)25377067X (DE-600)1459413-4 1432-1793 nnns volume:143 year:2003 number:3 day:27 month:05 pages:533-541 https://dx.doi.org/10.1007/s00227-003-1078-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_636 GBV_ILN_647 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4277 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 143 2003 3 27 05 533-541 |
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Enthalten in Marine biology 143(2003), 3 vom: 27. Mai, Seite 533-541 volume:143 year:2003 number:3 day:27 month:05 pages:533-541 |
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Enthalten in Marine biology 143(2003), 3 vom: 27. Mai, Seite 533-541 volume:143 year:2003 number:3 day:27 month:05 pages:533-541 |
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Digestive Gland Alimentary Tract Alimentary Canal Digestive Cell Intracellular Digestion |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">SPR00251821X</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230327162552.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">201001s2003 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1007/s00227-003-1078-8</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)SPR00251821X</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(SPR)s00227-003-1078-8-e</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Martin, R.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Management of nematocysts in the alimentary tract and in cnidosacs of the aeolid nudibranch gastropod Cratena peregrina</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2003</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">© Springer-Verlag 2003</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract The nudibranch gastropod Cratena peregrina (Opisthobranchia: Aeolidaceae), when feeding on polyps of the hydrozoan Eudendrium racemosum (Cnidaria: Anthoathecata), devours masses of small microbasic eurytele and holotrichous isorhiza nematocysts. Large proportions of these nematocysts were found undischarged in the alimentary tracts of the snails. Feeding experiments in this study tracked the fate of nematocysts as they passed through the alimentary canal to the digestive gland in the dorsal appendages, the cerata, to the cnidosacs, and finally in the faeces. In digestive cells, many structurally intact nematocysts were present in large phagosomes that remained unaffected even after 2 days fasting, and phagosomes containing nematocysts were found in the faeces. Thus, it is inferred that fusion of nematocyst-containing phagosomes with lysosomes and subsequent digestion of nematocysts is blocked. Masses of exposed, undigested and structurally intact nematocysts were discarded in the faeces. In the tips of the cerata, other nematocysts were phagocytosed by cnidophages and stored in the cnidosacs. After release, in contact with seawater, cnidosac nematocysts were able to discharge. When cnidophore tentacles of E. racemosum with only holotrichous isorhizas were fed to the snails, the isorhizas arrived in the cnidosacs about 2 h after feeding and mixed with existing small euryteles. Some cnidosacs also contained very large microbasic eurytele or large macrobasic eurytele nematocysts, possibly from Eudendrium ramosum and Eudendrium glomeratum, respectively. This indicates that the various types of nematocysts from food were all incorporated into the cnidosacs. Evidence for a selection process or digestion of a certain nematocyst type in the cnidophages was not obtained. It is concluded that a large proportion of the nematocysts ingested with the food are not digested, but are eliminated, structurally and functionally intact, via the alimentary canal and the tips of the cerata.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Digestive Gland</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Alimentary Tract</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Alimentary Canal</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Digestive Cell</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Intracellular Digestion</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Marine biology</subfield><subfield code="d">Berlin : Springer, 1967</subfield><subfield code="g">143(2003), 3 vom: 27. 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| author |
Martin, R. |
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Martin, R. misc Digestive Gland misc Alimentary Tract misc Alimentary Canal misc Digestive Cell misc Intracellular Digestion Management of nematocysts in the alimentary tract and in cnidosacs of the aeolid nudibranch gastropod Cratena peregrina |
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Management of nematocysts in the alimentary tract and in cnidosacs of the aeolid nudibranch gastropod Cratena peregrina Digestive Gland (dpeaa)DE-He213 Alimentary Tract (dpeaa)DE-He213 Alimentary Canal (dpeaa)DE-He213 Digestive Cell (dpeaa)DE-He213 Intracellular Digestion (dpeaa)DE-He213 |
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misc Digestive Gland misc Alimentary Tract misc Alimentary Canal misc Digestive Cell misc Intracellular Digestion |
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misc Digestive Gland misc Alimentary Tract misc Alimentary Canal misc Digestive Cell misc Intracellular Digestion |
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Management of nematocysts in the alimentary tract and in cnidosacs of the aeolid nudibranch gastropod Cratena peregrina |
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Management of nematocysts in the alimentary tract and in cnidosacs of the aeolid nudibranch gastropod Cratena peregrina |
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Martin, R. |
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Marine biology |
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Martin, R. |
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10.1007/s00227-003-1078-8 |
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management of nematocysts in the alimentary tract and in cnidosacs of the aeolid nudibranch gastropod cratena peregrina |
| title_auth |
Management of nematocysts in the alimentary tract and in cnidosacs of the aeolid nudibranch gastropod Cratena peregrina |
| abstract |
Abstract The nudibranch gastropod Cratena peregrina (Opisthobranchia: Aeolidaceae), when feeding on polyps of the hydrozoan Eudendrium racemosum (Cnidaria: Anthoathecata), devours masses of small microbasic eurytele and holotrichous isorhiza nematocysts. Large proportions of these nematocysts were found undischarged in the alimentary tracts of the snails. Feeding experiments in this study tracked the fate of nematocysts as they passed through the alimentary canal to the digestive gland in the dorsal appendages, the cerata, to the cnidosacs, and finally in the faeces. In digestive cells, many structurally intact nematocysts were present in large phagosomes that remained unaffected even after 2 days fasting, and phagosomes containing nematocysts were found in the faeces. Thus, it is inferred that fusion of nematocyst-containing phagosomes with lysosomes and subsequent digestion of nematocysts is blocked. Masses of exposed, undigested and structurally intact nematocysts were discarded in the faeces. In the tips of the cerata, other nematocysts were phagocytosed by cnidophages and stored in the cnidosacs. After release, in contact with seawater, cnidosac nematocysts were able to discharge. When cnidophore tentacles of E. racemosum with only holotrichous isorhizas were fed to the snails, the isorhizas arrived in the cnidosacs about 2 h after feeding and mixed with existing small euryteles. Some cnidosacs also contained very large microbasic eurytele or large macrobasic eurytele nematocysts, possibly from Eudendrium ramosum and Eudendrium glomeratum, respectively. This indicates that the various types of nematocysts from food were all incorporated into the cnidosacs. Evidence for a selection process or digestion of a certain nematocyst type in the cnidophages was not obtained. It is concluded that a large proportion of the nematocysts ingested with the food are not digested, but are eliminated, structurally and functionally intact, via the alimentary canal and the tips of the cerata. © Springer-Verlag 2003 |
| abstractGer |
Abstract The nudibranch gastropod Cratena peregrina (Opisthobranchia: Aeolidaceae), when feeding on polyps of the hydrozoan Eudendrium racemosum (Cnidaria: Anthoathecata), devours masses of small microbasic eurytele and holotrichous isorhiza nematocysts. Large proportions of these nematocysts were found undischarged in the alimentary tracts of the snails. Feeding experiments in this study tracked the fate of nematocysts as they passed through the alimentary canal to the digestive gland in the dorsal appendages, the cerata, to the cnidosacs, and finally in the faeces. In digestive cells, many structurally intact nematocysts were present in large phagosomes that remained unaffected even after 2 days fasting, and phagosomes containing nematocysts were found in the faeces. Thus, it is inferred that fusion of nematocyst-containing phagosomes with lysosomes and subsequent digestion of nematocysts is blocked. Masses of exposed, undigested and structurally intact nematocysts were discarded in the faeces. In the tips of the cerata, other nematocysts were phagocytosed by cnidophages and stored in the cnidosacs. After release, in contact with seawater, cnidosac nematocysts were able to discharge. When cnidophore tentacles of E. racemosum with only holotrichous isorhizas were fed to the snails, the isorhizas arrived in the cnidosacs about 2 h after feeding and mixed with existing small euryteles. Some cnidosacs also contained very large microbasic eurytele or large macrobasic eurytele nematocysts, possibly from Eudendrium ramosum and Eudendrium glomeratum, respectively. This indicates that the various types of nematocysts from food were all incorporated into the cnidosacs. Evidence for a selection process or digestion of a certain nematocyst type in the cnidophages was not obtained. It is concluded that a large proportion of the nematocysts ingested with the food are not digested, but are eliminated, structurally and functionally intact, via the alimentary canal and the tips of the cerata. © Springer-Verlag 2003 |
| abstract_unstemmed |
Abstract The nudibranch gastropod Cratena peregrina (Opisthobranchia: Aeolidaceae), when feeding on polyps of the hydrozoan Eudendrium racemosum (Cnidaria: Anthoathecata), devours masses of small microbasic eurytele and holotrichous isorhiza nematocysts. Large proportions of these nematocysts were found undischarged in the alimentary tracts of the snails. Feeding experiments in this study tracked the fate of nematocysts as they passed through the alimentary canal to the digestive gland in the dorsal appendages, the cerata, to the cnidosacs, and finally in the faeces. In digestive cells, many structurally intact nematocysts were present in large phagosomes that remained unaffected even after 2 days fasting, and phagosomes containing nematocysts were found in the faeces. Thus, it is inferred that fusion of nematocyst-containing phagosomes with lysosomes and subsequent digestion of nematocysts is blocked. Masses of exposed, undigested and structurally intact nematocysts were discarded in the faeces. In the tips of the cerata, other nematocysts were phagocytosed by cnidophages and stored in the cnidosacs. After release, in contact with seawater, cnidosac nematocysts were able to discharge. When cnidophore tentacles of E. racemosum with only holotrichous isorhizas were fed to the snails, the isorhizas arrived in the cnidosacs about 2 h after feeding and mixed with existing small euryteles. Some cnidosacs also contained very large microbasic eurytele or large macrobasic eurytele nematocysts, possibly from Eudendrium ramosum and Eudendrium glomeratum, respectively. This indicates that the various types of nematocysts from food were all incorporated into the cnidosacs. Evidence for a selection process or digestion of a certain nematocyst type in the cnidophages was not obtained. It is concluded that a large proportion of the nematocysts ingested with the food are not digested, but are eliminated, structurally and functionally intact, via the alimentary canal and the tips of the cerata. © Springer-Verlag 2003 |
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| title_short |
Management of nematocysts in the alimentary tract and in cnidosacs of the aeolid nudibranch gastropod Cratena peregrina |
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https://dx.doi.org/10.1007/s00227-003-1078-8 |
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10.1007/s00227-003-1078-8 |
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2024-07-03T13:28:16.375Z |
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| score |
7.4005013 |