Evidence for a direct role of α-MSH in morphological background adaptation of the skin in Sarotherodon mossambicus
Summary The skin colour of the cichlid teleost Sarotherodon mossambicus adapted rapidly to changes in background colour. The physiological adaptation was associated with morphological changes in the dermis. Differences in the dermis were found between fish adapted to a black or white background for...
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| Autor*in: |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
1981 |
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| Umfang: |
12 |
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| Reproduktion: |
Springer Online Journal Archives 1860-2002 |
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| Übergeordnetes Werk: |
in: Cell & tissue research - 1924, 217(1981) vom: Feb., Seite 361-372 |
| Übergeordnetes Werk: |
volume:217 ; year:1981 ; month:02 ; pages:361-372 ; extent:12 |
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NLEJ205741541 |
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| 245 | 1 | 0 | |a Evidence for a direct role of α-MSH in morphological background adaptation of the skin in Sarotherodon mossambicus |
| 264 | 1 | |c 1981 | |
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| 520 | |a Summary The skin colour of the cichlid teleost Sarotherodon mossambicus adapted rapidly to changes in background colour. The physiological adaptation was associated with morphological changes in the dermis. Differences in the dermis were found between fish adapted to a black or white background for 14 days. Number and size of the melanophores as well as the amount of pigment in the cytoplasm of the melanophores were significantly increased in fish adapted to a black background. Changes in the dermis parallelled changes in the state of activity of the two endocrine cell types in the pars intermedia of the pituitary. Both the PAS positive cells and the MSH producing cells were more active when the fish were exposed to a black rather than a white background. Fish continuously infused with α-MSH, using an osmotic minipump, had more melanophore cytoplasm and pigment per dermis surface unit area than untreated fish. The activity of the MSH cells in MSH-infused fish exposed to a black background was reduced to a level comparable to the MSH cell activity of untreated fish on a white background. α-MSH treated fish that were exposed to a white background had many disintegrating MSH cells. These findings point to inactivation of these cells by exogenous α-MSH. The activity of the PAS positive cells was not influenced by treatment with α-MSH. | ||
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(DE-627)NLEJ205741541 DE-627 ger DE-627 rakwb eng Evidence for a direct role of α-MSH in morphological background adaptation of the skin in Sarotherodon mossambicus 1981 12 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Summary The skin colour of the cichlid teleost Sarotherodon mossambicus adapted rapidly to changes in background colour. The physiological adaptation was associated with morphological changes in the dermis. Differences in the dermis were found between fish adapted to a black or white background for 14 days. Number and size of the melanophores as well as the amount of pigment in the cytoplasm of the melanophores were significantly increased in fish adapted to a black background. Changes in the dermis parallelled changes in the state of activity of the two endocrine cell types in the pars intermedia of the pituitary. Both the PAS positive cells and the MSH producing cells were more active when the fish were exposed to a black rather than a white background. Fish continuously infused with α-MSH, using an osmotic minipump, had more melanophore cytoplasm and pigment per dermis surface unit area than untreated fish. The activity of the MSH cells in MSH-infused fish exposed to a black background was reduced to a level comparable to the MSH cell activity of untreated fish on a white background. α-MSH treated fish that were exposed to a white background had many disintegrating MSH cells. These findings point to inactivation of these cells by exogenous α-MSH. The activity of the PAS positive cells was not influenced by treatment with α-MSH. Springer Online Journal Archives 1860-2002 Eys, G. J. J. M. oth Peters, P. T. W. oth in Cell & tissue research 1924 217(1981) vom: Feb., Seite 361-372 (DE-627)NLEJ188990097 (DE-600)1458496-7 1432-0878 nnns volume:217 year:1981 month:02 pages:361-372 extent:12 http://dx.doi.org/10.1007/BF00233586 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 217 1981 2 361-372 12 |
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(DE-627)NLEJ205741541 DE-627 ger DE-627 rakwb eng Evidence for a direct role of α-MSH in morphological background adaptation of the skin in Sarotherodon mossambicus 1981 12 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Summary The skin colour of the cichlid teleost Sarotherodon mossambicus adapted rapidly to changes in background colour. The physiological adaptation was associated with morphological changes in the dermis. Differences in the dermis were found between fish adapted to a black or white background for 14 days. Number and size of the melanophores as well as the amount of pigment in the cytoplasm of the melanophores were significantly increased in fish adapted to a black background. Changes in the dermis parallelled changes in the state of activity of the two endocrine cell types in the pars intermedia of the pituitary. Both the PAS positive cells and the MSH producing cells were more active when the fish were exposed to a black rather than a white background. Fish continuously infused with α-MSH, using an osmotic minipump, had more melanophore cytoplasm and pigment per dermis surface unit area than untreated fish. The activity of the MSH cells in MSH-infused fish exposed to a black background was reduced to a level comparable to the MSH cell activity of untreated fish on a white background. α-MSH treated fish that were exposed to a white background had many disintegrating MSH cells. These findings point to inactivation of these cells by exogenous α-MSH. The activity of the PAS positive cells was not influenced by treatment with α-MSH. Springer Online Journal Archives 1860-2002 Eys, G. J. J. M. oth Peters, P. T. W. oth in Cell & tissue research 1924 217(1981) vom: Feb., Seite 361-372 (DE-627)NLEJ188990097 (DE-600)1458496-7 1432-0878 nnns volume:217 year:1981 month:02 pages:361-372 extent:12 http://dx.doi.org/10.1007/BF00233586 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 217 1981 2 361-372 12 |
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(DE-627)NLEJ205741541 DE-627 ger DE-627 rakwb eng Evidence for a direct role of α-MSH in morphological background adaptation of the skin in Sarotherodon mossambicus 1981 12 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Summary The skin colour of the cichlid teleost Sarotherodon mossambicus adapted rapidly to changes in background colour. The physiological adaptation was associated with morphological changes in the dermis. Differences in the dermis were found between fish adapted to a black or white background for 14 days. Number and size of the melanophores as well as the amount of pigment in the cytoplasm of the melanophores were significantly increased in fish adapted to a black background. Changes in the dermis parallelled changes in the state of activity of the two endocrine cell types in the pars intermedia of the pituitary. Both the PAS positive cells and the MSH producing cells were more active when the fish were exposed to a black rather than a white background. Fish continuously infused with α-MSH, using an osmotic minipump, had more melanophore cytoplasm and pigment per dermis surface unit area than untreated fish. The activity of the MSH cells in MSH-infused fish exposed to a black background was reduced to a level comparable to the MSH cell activity of untreated fish on a white background. α-MSH treated fish that were exposed to a white background had many disintegrating MSH cells. These findings point to inactivation of these cells by exogenous α-MSH. The activity of the PAS positive cells was not influenced by treatment with α-MSH. Springer Online Journal Archives 1860-2002 Eys, G. J. J. M. oth Peters, P. T. W. oth in Cell & tissue research 1924 217(1981) vom: Feb., Seite 361-372 (DE-627)NLEJ188990097 (DE-600)1458496-7 1432-0878 nnns volume:217 year:1981 month:02 pages:361-372 extent:12 http://dx.doi.org/10.1007/BF00233586 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 217 1981 2 361-372 12 |
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(DE-627)NLEJ205741541 DE-627 ger DE-627 rakwb eng Evidence for a direct role of α-MSH in morphological background adaptation of the skin in Sarotherodon mossambicus 1981 12 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Summary The skin colour of the cichlid teleost Sarotherodon mossambicus adapted rapidly to changes in background colour. The physiological adaptation was associated with morphological changes in the dermis. Differences in the dermis were found between fish adapted to a black or white background for 14 days. Number and size of the melanophores as well as the amount of pigment in the cytoplasm of the melanophores were significantly increased in fish adapted to a black background. Changes in the dermis parallelled changes in the state of activity of the two endocrine cell types in the pars intermedia of the pituitary. Both the PAS positive cells and the MSH producing cells were more active when the fish were exposed to a black rather than a white background. Fish continuously infused with α-MSH, using an osmotic minipump, had more melanophore cytoplasm and pigment per dermis surface unit area than untreated fish. The activity of the MSH cells in MSH-infused fish exposed to a black background was reduced to a level comparable to the MSH cell activity of untreated fish on a white background. α-MSH treated fish that were exposed to a white background had many disintegrating MSH cells. These findings point to inactivation of these cells by exogenous α-MSH. The activity of the PAS positive cells was not influenced by treatment with α-MSH. Springer Online Journal Archives 1860-2002 Eys, G. J. J. M. oth Peters, P. T. W. oth in Cell & tissue research 1924 217(1981) vom: Feb., Seite 361-372 (DE-627)NLEJ188990097 (DE-600)1458496-7 1432-0878 nnns volume:217 year:1981 month:02 pages:361-372 extent:12 http://dx.doi.org/10.1007/BF00233586 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 217 1981 2 361-372 12 |
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(DE-627)NLEJ205741541 DE-627 ger DE-627 rakwb eng Evidence for a direct role of α-MSH in morphological background adaptation of the skin in Sarotherodon mossambicus 1981 12 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Summary The skin colour of the cichlid teleost Sarotherodon mossambicus adapted rapidly to changes in background colour. The physiological adaptation was associated with morphological changes in the dermis. Differences in the dermis were found between fish adapted to a black or white background for 14 days. Number and size of the melanophores as well as the amount of pigment in the cytoplasm of the melanophores were significantly increased in fish adapted to a black background. Changes in the dermis parallelled changes in the state of activity of the two endocrine cell types in the pars intermedia of the pituitary. Both the PAS positive cells and the MSH producing cells were more active when the fish were exposed to a black rather than a white background. Fish continuously infused with α-MSH, using an osmotic minipump, had more melanophore cytoplasm and pigment per dermis surface unit area than untreated fish. The activity of the MSH cells in MSH-infused fish exposed to a black background was reduced to a level comparable to the MSH cell activity of untreated fish on a white background. α-MSH treated fish that were exposed to a white background had many disintegrating MSH cells. These findings point to inactivation of these cells by exogenous α-MSH. The activity of the PAS positive cells was not influenced by treatment with α-MSH. Springer Online Journal Archives 1860-2002 Eys, G. J. J. M. oth Peters, P. T. W. oth in Cell & tissue research 1924 217(1981) vom: Feb., Seite 361-372 (DE-627)NLEJ188990097 (DE-600)1458496-7 1432-0878 nnns volume:217 year:1981 month:02 pages:361-372 extent:12 http://dx.doi.org/10.1007/BF00233586 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 217 1981 2 361-372 12 |
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Evidence for a direct role of α-MSH in morphological background adaptation of the skin in Sarotherodon mossambicus |
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evidence for a direct role of α-msh in morphological background adaptation of the skin in sarotherodon mossambicus |
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Evidence for a direct role of α-MSH in morphological background adaptation of the skin in Sarotherodon mossambicus |
| abstract |
Summary The skin colour of the cichlid teleost Sarotherodon mossambicus adapted rapidly to changes in background colour. The physiological adaptation was associated with morphological changes in the dermis. Differences in the dermis were found between fish adapted to a black or white background for 14 days. Number and size of the melanophores as well as the amount of pigment in the cytoplasm of the melanophores were significantly increased in fish adapted to a black background. Changes in the dermis parallelled changes in the state of activity of the two endocrine cell types in the pars intermedia of the pituitary. Both the PAS positive cells and the MSH producing cells were more active when the fish were exposed to a black rather than a white background. Fish continuously infused with α-MSH, using an osmotic minipump, had more melanophore cytoplasm and pigment per dermis surface unit area than untreated fish. The activity of the MSH cells in MSH-infused fish exposed to a black background was reduced to a level comparable to the MSH cell activity of untreated fish on a white background. α-MSH treated fish that were exposed to a white background had many disintegrating MSH cells. These findings point to inactivation of these cells by exogenous α-MSH. The activity of the PAS positive cells was not influenced by treatment with α-MSH. |
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Summary The skin colour of the cichlid teleost Sarotherodon mossambicus adapted rapidly to changes in background colour. The physiological adaptation was associated with morphological changes in the dermis. Differences in the dermis were found between fish adapted to a black or white background for 14 days. Number and size of the melanophores as well as the amount of pigment in the cytoplasm of the melanophores were significantly increased in fish adapted to a black background. Changes in the dermis parallelled changes in the state of activity of the two endocrine cell types in the pars intermedia of the pituitary. Both the PAS positive cells and the MSH producing cells were more active when the fish were exposed to a black rather than a white background. Fish continuously infused with α-MSH, using an osmotic minipump, had more melanophore cytoplasm and pigment per dermis surface unit area than untreated fish. The activity of the MSH cells in MSH-infused fish exposed to a black background was reduced to a level comparable to the MSH cell activity of untreated fish on a white background. α-MSH treated fish that were exposed to a white background had many disintegrating MSH cells. These findings point to inactivation of these cells by exogenous α-MSH. The activity of the PAS positive cells was not influenced by treatment with α-MSH. |
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Summary The skin colour of the cichlid teleost Sarotherodon mossambicus adapted rapidly to changes in background colour. The physiological adaptation was associated with morphological changes in the dermis. Differences in the dermis were found between fish adapted to a black or white background for 14 days. Number and size of the melanophores as well as the amount of pigment in the cytoplasm of the melanophores were significantly increased in fish adapted to a black background. Changes in the dermis parallelled changes in the state of activity of the two endocrine cell types in the pars intermedia of the pituitary. Both the PAS positive cells and the MSH producing cells were more active when the fish were exposed to a black rather than a white background. Fish continuously infused with α-MSH, using an osmotic minipump, had more melanophore cytoplasm and pigment per dermis surface unit area than untreated fish. The activity of the MSH cells in MSH-infused fish exposed to a black background was reduced to a level comparable to the MSH cell activity of untreated fish on a white background. α-MSH treated fish that were exposed to a white background had many disintegrating MSH cells. These findings point to inactivation of these cells by exogenous α-MSH. The activity of the PAS positive cells was not influenced by treatment with α-MSH. |
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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">NLEJ205741541</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20210706183645.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">070528s1981 xx |||||o 00| ||eng c</controlfield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)NLEJ205741541</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="245" ind1="1" ind2="0"><subfield code="a">Evidence for a direct role of α-MSH in morphological background adaptation of the skin in Sarotherodon mossambicus</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">1981</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">12</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">Summary The skin colour of the cichlid teleost Sarotherodon mossambicus adapted rapidly to changes in background colour. The physiological adaptation was associated with morphological changes in the dermis. Differences in the dermis were found between fish adapted to a black or white background for 14 days. Number and size of the melanophores as well as the amount of pigment in the cytoplasm of the melanophores were significantly increased in fish adapted to a black background. Changes in the dermis parallelled changes in the state of activity of the two endocrine cell types in the pars intermedia of the pituitary. Both the PAS positive cells and the MSH producing cells were more active when the fish were exposed to a black rather than a white background. Fish continuously infused with α-MSH, using an osmotic minipump, had more melanophore cytoplasm and pigment per dermis surface unit area than untreated fish. The activity of the MSH cells in MSH-infused fish exposed to a black background was reduced to a level comparable to the MSH cell activity of untreated fish on a white background. α-MSH treated fish that were exposed to a white background had many disintegrating MSH cells. These findings point to inactivation of these cells by exogenous α-MSH. The activity of the PAS positive cells was not influenced by treatment with α-MSH.</subfield></datafield><datafield tag="533" ind1=" " ind2=" "><subfield code="f">Springer Online Journal Archives 1860-2002</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Eys, G. J. J. M.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Peters, P. T. W.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">in</subfield><subfield code="t">Cell & tissue research</subfield><subfield code="d">1924</subfield><subfield code="g">217(1981) vom: Feb., Seite 361-372</subfield><subfield code="w">(DE-627)NLEJ188990097</subfield><subfield code="w">(DE-600)1458496-7</subfield><subfield code="x">1432-0878</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:217</subfield><subfield code="g">year:1981</subfield><subfield code="g">month:02</subfield><subfield code="g">pages:361-372</subfield><subfield code="g">extent:12</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">http://dx.doi.org/10.1007/BF00233586</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-SOJ</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">217</subfield><subfield code="j">1981</subfield><subfield code="c">2</subfield><subfield code="h">361-372</subfield><subfield code="g">12</subfield></datafield></record></collection>
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7.400672 |