The Dynamic Nature of Protistan Ingestion Response to Prey Abundance
. Ingestion rate of Paraphysomonas imperforata was found to be a hyperbolic function of prey density. But the same flagellate clone had multiple ingestion responses to prey density, depending on its physiological state and physical stress it suffers. The flagellates in a physiological state of highe...
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| Autor*in: |
CHOI, JOON W. [verfasserIn] |
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Oxford, UK: Blackwell Publishing Ltd ; 1994 |
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Online-Ressource |
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2007 ; Blackwell Publishing Journal Backfiles 1879-2005 |
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In: The journal of eukaryotic microbiology - Oxford [u.a.] : Wiley-Blackwell, 1954, 41(1994), 2, Seite 0 |
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volume:41 ; year:1994 ; number:2 ; pages:0 |
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10.1111/j.1550-7408.1994.tb01487.x |
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| 520 | |a . Ingestion rate of Paraphysomonas imperforata was found to be a hyperbolic function of prey density. But the same flagellate clone had multiple ingestion responses to prey density, depending on its physiological state and physical stress it suffers. The flagellates in a physiological state of higher growth tended to have higher maximum ingestion and clearance rates than ones in a physiological state of lower growth. The same trend was observed for volume-specific maximum ingestion and volume-specific clearance rate. In response to changing prey density, the growth rate did not change as quickly as the ingestion rate, suggesting imbalance between the two. The tested physical stresses, including shaking, centrifugation, and filtration, also resulted in reduction of ingestion parameters of the flagellates. But half-saturation constants did not show any trend in response to either physiological state or physical stress. In light of the dynamic nature of protistan ingestion response to prey abundance, short incubation, which minimizes the physiological change, and careful handling, which prevents the possible physical stress, should be employed in order to avoid underestimation of in situ ingestion rates. Previously reported ingestion parameters of lab-cultured protists, which are thought to be unrealistic in natural conditions, may represent only one of multiple ingestion responses, probably prey-rich condition. | ||
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10.1111/j.1550-7408.1994.tb01487.x doi (DE-627)NLEJ240634756 DE-627 ger DE-627 rakwb CHOI, JOON W. verfasserin aut The Dynamic Nature of Protistan Ingestion Response to Prey Abundance Oxford, UK Blackwell Publishing Ltd 1994 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier . Ingestion rate of Paraphysomonas imperforata was found to be a hyperbolic function of prey density. But the same flagellate clone had multiple ingestion responses to prey density, depending on its physiological state and physical stress it suffers. The flagellates in a physiological state of higher growth tended to have higher maximum ingestion and clearance rates than ones in a physiological state of lower growth. The same trend was observed for volume-specific maximum ingestion and volume-specific clearance rate. In response to changing prey density, the growth rate did not change as quickly as the ingestion rate, suggesting imbalance between the two. The tested physical stresses, including shaking, centrifugation, and filtration, also resulted in reduction of ingestion parameters of the flagellates. But half-saturation constants did not show any trend in response to either physiological state or physical stress. In light of the dynamic nature of protistan ingestion response to prey abundance, short incubation, which minimizes the physiological change, and careful handling, which prevents the possible physical stress, should be employed in order to avoid underestimation of in situ ingestion rates. Previously reported ingestion parameters of lab-cultured protists, which are thought to be unrealistic in natural conditions, may represent only one of multiple ingestion responses, probably prey-rich condition. 2007 Blackwell Publishing Journal Backfiles 1879-2005 |2007|||||||||| Multiple ingestion response In The journal of eukaryotic microbiology Oxford [u.a.] : Wiley-Blackwell, 1954 41(1994), 2, Seite 0 Online-Ressource (DE-627)NLEJ243927622 (DE-600)2126326-7 1550-7408 nnns volume:41 year:1994 number:2 pages:0 http://dx.doi.org/10.1111/j.1550-7408.1994.tb01487.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 41 1994 2 0 |
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10.1111/j.1550-7408.1994.tb01487.x doi (DE-627)NLEJ240634756 DE-627 ger DE-627 rakwb CHOI, JOON W. verfasserin aut The Dynamic Nature of Protistan Ingestion Response to Prey Abundance Oxford, UK Blackwell Publishing Ltd 1994 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier . Ingestion rate of Paraphysomonas imperforata was found to be a hyperbolic function of prey density. But the same flagellate clone had multiple ingestion responses to prey density, depending on its physiological state and physical stress it suffers. The flagellates in a physiological state of higher growth tended to have higher maximum ingestion and clearance rates than ones in a physiological state of lower growth. The same trend was observed for volume-specific maximum ingestion and volume-specific clearance rate. In response to changing prey density, the growth rate did not change as quickly as the ingestion rate, suggesting imbalance between the two. The tested physical stresses, including shaking, centrifugation, and filtration, also resulted in reduction of ingestion parameters of the flagellates. But half-saturation constants did not show any trend in response to either physiological state or physical stress. In light of the dynamic nature of protistan ingestion response to prey abundance, short incubation, which minimizes the physiological change, and careful handling, which prevents the possible physical stress, should be employed in order to avoid underestimation of in situ ingestion rates. Previously reported ingestion parameters of lab-cultured protists, which are thought to be unrealistic in natural conditions, may represent only one of multiple ingestion responses, probably prey-rich condition. 2007 Blackwell Publishing Journal Backfiles 1879-2005 |2007|||||||||| Multiple ingestion response In The journal of eukaryotic microbiology Oxford [u.a.] : Wiley-Blackwell, 1954 41(1994), 2, Seite 0 Online-Ressource (DE-627)NLEJ243927622 (DE-600)2126326-7 1550-7408 nnns volume:41 year:1994 number:2 pages:0 http://dx.doi.org/10.1111/j.1550-7408.1994.tb01487.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 41 1994 2 0 |
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10.1111/j.1550-7408.1994.tb01487.x doi (DE-627)NLEJ240634756 DE-627 ger DE-627 rakwb CHOI, JOON W. verfasserin aut The Dynamic Nature of Protistan Ingestion Response to Prey Abundance Oxford, UK Blackwell Publishing Ltd 1994 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier . Ingestion rate of Paraphysomonas imperforata was found to be a hyperbolic function of prey density. But the same flagellate clone had multiple ingestion responses to prey density, depending on its physiological state and physical stress it suffers. The flagellates in a physiological state of higher growth tended to have higher maximum ingestion and clearance rates than ones in a physiological state of lower growth. The same trend was observed for volume-specific maximum ingestion and volume-specific clearance rate. In response to changing prey density, the growth rate did not change as quickly as the ingestion rate, suggesting imbalance between the two. The tested physical stresses, including shaking, centrifugation, and filtration, also resulted in reduction of ingestion parameters of the flagellates. But half-saturation constants did not show any trend in response to either physiological state or physical stress. In light of the dynamic nature of protistan ingestion response to prey abundance, short incubation, which minimizes the physiological change, and careful handling, which prevents the possible physical stress, should be employed in order to avoid underestimation of in situ ingestion rates. Previously reported ingestion parameters of lab-cultured protists, which are thought to be unrealistic in natural conditions, may represent only one of multiple ingestion responses, probably prey-rich condition. 2007 Blackwell Publishing Journal Backfiles 1879-2005 |2007|||||||||| Multiple ingestion response In The journal of eukaryotic microbiology Oxford [u.a.] : Wiley-Blackwell, 1954 41(1994), 2, Seite 0 Online-Ressource (DE-627)NLEJ243927622 (DE-600)2126326-7 1550-7408 nnns volume:41 year:1994 number:2 pages:0 http://dx.doi.org/10.1111/j.1550-7408.1994.tb01487.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 41 1994 2 0 |
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10.1111/j.1550-7408.1994.tb01487.x doi (DE-627)NLEJ240634756 DE-627 ger DE-627 rakwb CHOI, JOON W. verfasserin aut The Dynamic Nature of Protistan Ingestion Response to Prey Abundance Oxford, UK Blackwell Publishing Ltd 1994 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier . Ingestion rate of Paraphysomonas imperforata was found to be a hyperbolic function of prey density. But the same flagellate clone had multiple ingestion responses to prey density, depending on its physiological state and physical stress it suffers. The flagellates in a physiological state of higher growth tended to have higher maximum ingestion and clearance rates than ones in a physiological state of lower growth. The same trend was observed for volume-specific maximum ingestion and volume-specific clearance rate. In response to changing prey density, the growth rate did not change as quickly as the ingestion rate, suggesting imbalance between the two. The tested physical stresses, including shaking, centrifugation, and filtration, also resulted in reduction of ingestion parameters of the flagellates. But half-saturation constants did not show any trend in response to either physiological state or physical stress. In light of the dynamic nature of protistan ingestion response to prey abundance, short incubation, which minimizes the physiological change, and careful handling, which prevents the possible physical stress, should be employed in order to avoid underestimation of in situ ingestion rates. Previously reported ingestion parameters of lab-cultured protists, which are thought to be unrealistic in natural conditions, may represent only one of multiple ingestion responses, probably prey-rich condition. 2007 Blackwell Publishing Journal Backfiles 1879-2005 |2007|||||||||| Multiple ingestion response In The journal of eukaryotic microbiology Oxford [u.a.] : Wiley-Blackwell, 1954 41(1994), 2, Seite 0 Online-Ressource (DE-627)NLEJ243927622 (DE-600)2126326-7 1550-7408 nnns volume:41 year:1994 number:2 pages:0 http://dx.doi.org/10.1111/j.1550-7408.1994.tb01487.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 41 1994 2 0 |
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10.1111/j.1550-7408.1994.tb01487.x doi (DE-627)NLEJ240634756 DE-627 ger DE-627 rakwb CHOI, JOON W. verfasserin aut The Dynamic Nature of Protistan Ingestion Response to Prey Abundance Oxford, UK Blackwell Publishing Ltd 1994 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier . Ingestion rate of Paraphysomonas imperforata was found to be a hyperbolic function of prey density. But the same flagellate clone had multiple ingestion responses to prey density, depending on its physiological state and physical stress it suffers. The flagellates in a physiological state of higher growth tended to have higher maximum ingestion and clearance rates than ones in a physiological state of lower growth. The same trend was observed for volume-specific maximum ingestion and volume-specific clearance rate. In response to changing prey density, the growth rate did not change as quickly as the ingestion rate, suggesting imbalance between the two. The tested physical stresses, including shaking, centrifugation, and filtration, also resulted in reduction of ingestion parameters of the flagellates. But half-saturation constants did not show any trend in response to either physiological state or physical stress. In light of the dynamic nature of protistan ingestion response to prey abundance, short incubation, which minimizes the physiological change, and careful handling, which prevents the possible physical stress, should be employed in order to avoid underestimation of in situ ingestion rates. Previously reported ingestion parameters of lab-cultured protists, which are thought to be unrealistic in natural conditions, may represent only one of multiple ingestion responses, probably prey-rich condition. 2007 Blackwell Publishing Journal Backfiles 1879-2005 |2007|||||||||| Multiple ingestion response In The journal of eukaryotic microbiology Oxford [u.a.] : Wiley-Blackwell, 1954 41(1994), 2, Seite 0 Online-Ressource (DE-627)NLEJ243927622 (DE-600)2126326-7 1550-7408 nnns volume:41 year:1994 number:2 pages:0 http://dx.doi.org/10.1111/j.1550-7408.1994.tb01487.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 41 1994 2 0 |
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. Ingestion rate of Paraphysomonas imperforata was found to be a hyperbolic function of prey density. But the same flagellate clone had multiple ingestion responses to prey density, depending on its physiological state and physical stress it suffers. The flagellates in a physiological state of higher growth tended to have higher maximum ingestion and clearance rates than ones in a physiological state of lower growth. The same trend was observed for volume-specific maximum ingestion and volume-specific clearance rate. In response to changing prey density, the growth rate did not change as quickly as the ingestion rate, suggesting imbalance between the two. The tested physical stresses, including shaking, centrifugation, and filtration, also resulted in reduction of ingestion parameters of the flagellates. But half-saturation constants did not show any trend in response to either physiological state or physical stress. In light of the dynamic nature of protistan ingestion response to prey abundance, short incubation, which minimizes the physiological change, and careful handling, which prevents the possible physical stress, should be employed in order to avoid underestimation of in situ ingestion rates. Previously reported ingestion parameters of lab-cultured protists, which are thought to be unrealistic in natural conditions, may represent only one of multiple ingestion responses, probably prey-rich condition. |
| abstractGer |
. Ingestion rate of Paraphysomonas imperforata was found to be a hyperbolic function of prey density. But the same flagellate clone had multiple ingestion responses to prey density, depending on its physiological state and physical stress it suffers. The flagellates in a physiological state of higher growth tended to have higher maximum ingestion and clearance rates than ones in a physiological state of lower growth. The same trend was observed for volume-specific maximum ingestion and volume-specific clearance rate. In response to changing prey density, the growth rate did not change as quickly as the ingestion rate, suggesting imbalance between the two. The tested physical stresses, including shaking, centrifugation, and filtration, also resulted in reduction of ingestion parameters of the flagellates. But half-saturation constants did not show any trend in response to either physiological state or physical stress. In light of the dynamic nature of protistan ingestion response to prey abundance, short incubation, which minimizes the physiological change, and careful handling, which prevents the possible physical stress, should be employed in order to avoid underestimation of in situ ingestion rates. Previously reported ingestion parameters of lab-cultured protists, which are thought to be unrealistic in natural conditions, may represent only one of multiple ingestion responses, probably prey-rich condition. |
| abstract_unstemmed |
. Ingestion rate of Paraphysomonas imperforata was found to be a hyperbolic function of prey density. But the same flagellate clone had multiple ingestion responses to prey density, depending on its physiological state and physical stress it suffers. The flagellates in a physiological state of higher growth tended to have higher maximum ingestion and clearance rates than ones in a physiological state of lower growth. The same trend was observed for volume-specific maximum ingestion and volume-specific clearance rate. In response to changing prey density, the growth rate did not change as quickly as the ingestion rate, suggesting imbalance between the two. The tested physical stresses, including shaking, centrifugation, and filtration, also resulted in reduction of ingestion parameters of the flagellates. But half-saturation constants did not show any trend in response to either physiological state or physical stress. In light of the dynamic nature of protistan ingestion response to prey abundance, short incubation, which minimizes the physiological change, and careful handling, which prevents the possible physical stress, should be employed in order to avoid underestimation of in situ ingestion rates. Previously reported ingestion parameters of lab-cultured protists, which are thought to be unrealistic in natural conditions, may represent only one of multiple ingestion responses, probably prey-rich condition. |
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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">NLEJ240634756</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20210707114839.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">120426s1994 xx |||||o 00| ||und c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1111/j.1550-7408.1994.tb01487.x</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)NLEJ240634756</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="100" ind1="1" ind2=" "><subfield code="a">CHOI, JOON W.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">The Dynamic Nature of Protistan Ingestion Response to Prey Abundance</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="a">Oxford, UK</subfield><subfield code="b">Blackwell Publishing Ltd</subfield><subfield code="c">1994</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">z</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zu</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">. Ingestion rate of Paraphysomonas imperforata was found to be a hyperbolic function of prey density. But the same flagellate clone had multiple ingestion responses to prey density, depending on its physiological state and physical stress it suffers. The flagellates in a physiological state of higher growth tended to have higher maximum ingestion and clearance rates than ones in a physiological state of lower growth. The same trend was observed for volume-specific maximum ingestion and volume-specific clearance rate. In response to changing prey density, the growth rate did not change as quickly as the ingestion rate, suggesting imbalance between the two. The tested physical stresses, including shaking, centrifugation, and filtration, also resulted in reduction of ingestion parameters of the flagellates. But half-saturation constants did not show any trend in response to either physiological state or physical stress. In light of the dynamic nature of protistan ingestion response to prey abundance, short incubation, which minimizes the physiological change, and careful handling, which prevents the possible physical stress, should be employed in order to avoid underestimation of in situ ingestion rates. Previously reported ingestion parameters of lab-cultured protists, which are thought to be unrealistic in natural conditions, may represent only one of multiple ingestion responses, probably prey-rich condition.</subfield></datafield><datafield tag="533" ind1=" " ind2=" "><subfield code="d">2007</subfield><subfield code="f">Blackwell Publishing Journal Backfiles 1879-2005</subfield><subfield code="7">|2007||||||||||</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Multiple ingestion response</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">In</subfield><subfield code="t">The journal of eukaryotic microbiology</subfield><subfield code="d">Oxford [u.a.] : Wiley-Blackwell, 1954</subfield><subfield code="g">41(1994), 2, Seite 0</subfield><subfield code="h">Online-Ressource</subfield><subfield code="w">(DE-627)NLEJ243927622</subfield><subfield code="w">(DE-600)2126326-7</subfield><subfield code="x">1550-7408</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:41</subfield><subfield code="g">year:1994</subfield><subfield code="g">number:2</subfield><subfield code="g">pages:0</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">http://dx.doi.org/10.1111/j.1550-7408.1994.tb01487.x</subfield><subfield code="q">text/html</subfield><subfield code="x">Verlag</subfield><subfield code="z">Deutschlandweit zugänglich</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">ZDB-1-DJB</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_NL_ARTICLE</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">41</subfield><subfield code="j">1994</subfield><subfield code="e">2</subfield><subfield code="h">0</subfield></datafield></record></collection>
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