Effects of supraoptimal temperatures on the myxomycete Phyrasum polycephalum
Summary The effects of heat shock on the protoplasmic streaming, respiration and leakage of plasmodial constituents absorbing at 260 nm (products of nucleic acid metabolism), 280 nm (products of protein metabolism), and 415 nm (the yellow pigments of the plasmodia) were studied in plasmodia of the m...
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| Autor*in: |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
1973 |
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| Umfang: |
11 |
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| Reproduktion: |
Springer Online Journal Archives 1860-2002 |
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| Übergeordnetes Werk: |
in: Archives of microbiology - 1930, 92(1973) vom: März, Seite 251-261 |
| Übergeordnetes Werk: |
volume:92 ; year:1973 ; month:03 ; pages:251-261 ; extent:11 |
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| 520 | |a Summary The effects of heat shock on the protoplasmic streaming, respiration and leakage of plasmodial constituents absorbing at 260 nm (products of nucleic acid metabolism), 280 nm (products of protein metabolism), and 415 nm (the yellow pigments of the plasmodia) were studied in plasmodia of the myxomycete Physarum polycephalum. Plasmodia grown on a semidefined medium displayed a lower primary thermoresistance of the protoplasmic streaming, and had a lower Q 10 coefficient of the heat injury of this function compared to those grown on rolled oats. They are able to repair thermal injuries during heating. The primary thermoresistance of the protoplasmic streaming is not changed during the mitotic cycle. A 10 min heating at 32°C lowers the rate of protoplasmic streaming and results in a leakage of plasmodial pigments. After a 10 min exposure at 37–38°C the protoplasmic streaming is stopped, the respiration reduced, and products of nucleic acid metabolism are detectable in the heating fluid. Leakage of protein metabolits was observed after 10 min heatshocks at 41°C. A heating of the plasmodia to 47–50°C caused the highest level of leaked substances and the complete cessation of respiration. In contrast to higher plants, the respiration and leakage of the pigments are thermolabile indicators of the condition of Physarum polycephalum plasmodia. | ||
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(DE-627)NLEJ200223941 DE-627 ger DE-627 rakwb eng Effects of supraoptimal temperatures on the myxomycete Phyrasum polycephalum 1973 11 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Summary The effects of heat shock on the protoplasmic streaming, respiration and leakage of plasmodial constituents absorbing at 260 nm (products of nucleic acid metabolism), 280 nm (products of protein metabolism), and 415 nm (the yellow pigments of the plasmodia) were studied in plasmodia of the myxomycete Physarum polycephalum. Plasmodia grown on a semidefined medium displayed a lower primary thermoresistance of the protoplasmic streaming, and had a lower Q 10 coefficient of the heat injury of this function compared to those grown on rolled oats. They are able to repair thermal injuries during heating. The primary thermoresistance of the protoplasmic streaming is not changed during the mitotic cycle. A 10 min heating at 32°C lowers the rate of protoplasmic streaming and results in a leakage of plasmodial pigments. After a 10 min exposure at 37–38°C the protoplasmic streaming is stopped, the respiration reduced, and products of nucleic acid metabolism are detectable in the heating fluid. Leakage of protein metabolits was observed after 10 min heatshocks at 41°C. A heating of the plasmodia to 47–50°C caused the highest level of leaked substances and the complete cessation of respiration. In contrast to higher plants, the respiration and leakage of the pigments are thermolabile indicators of the condition of Physarum polycephalum plasmodia. Springer Online Journal Archives 1860-2002 Bernstam, Victor A. oth Arndt, Stephan oth in Archives of microbiology 1930 92(1973) vom: März, Seite 251-261 (DE-627)NLEJ188986545 (DE-600)1458451-7 1432-072X nnns volume:92 year:1973 month:03 pages:251-261 extent:11 http://dx.doi.org/10.1007/BF00411206 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 92 1973 3 251-261 11 |
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(DE-627)NLEJ200223941 DE-627 ger DE-627 rakwb eng Effects of supraoptimal temperatures on the myxomycete Phyrasum polycephalum 1973 11 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Summary The effects of heat shock on the protoplasmic streaming, respiration and leakage of plasmodial constituents absorbing at 260 nm (products of nucleic acid metabolism), 280 nm (products of protein metabolism), and 415 nm (the yellow pigments of the plasmodia) were studied in plasmodia of the myxomycete Physarum polycephalum. Plasmodia grown on a semidefined medium displayed a lower primary thermoresistance of the protoplasmic streaming, and had a lower Q 10 coefficient of the heat injury of this function compared to those grown on rolled oats. They are able to repair thermal injuries during heating. The primary thermoresistance of the protoplasmic streaming is not changed during the mitotic cycle. A 10 min heating at 32°C lowers the rate of protoplasmic streaming and results in a leakage of plasmodial pigments. After a 10 min exposure at 37–38°C the protoplasmic streaming is stopped, the respiration reduced, and products of nucleic acid metabolism are detectable in the heating fluid. Leakage of protein metabolits was observed after 10 min heatshocks at 41°C. A heating of the plasmodia to 47–50°C caused the highest level of leaked substances and the complete cessation of respiration. In contrast to higher plants, the respiration and leakage of the pigments are thermolabile indicators of the condition of Physarum polycephalum plasmodia. Springer Online Journal Archives 1860-2002 Bernstam, Victor A. oth Arndt, Stephan oth in Archives of microbiology 1930 92(1973) vom: März, Seite 251-261 (DE-627)NLEJ188986545 (DE-600)1458451-7 1432-072X nnns volume:92 year:1973 month:03 pages:251-261 extent:11 http://dx.doi.org/10.1007/BF00411206 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 92 1973 3 251-261 11 |
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(DE-627)NLEJ200223941 DE-627 ger DE-627 rakwb eng Effects of supraoptimal temperatures on the myxomycete Phyrasum polycephalum 1973 11 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Summary The effects of heat shock on the protoplasmic streaming, respiration and leakage of plasmodial constituents absorbing at 260 nm (products of nucleic acid metabolism), 280 nm (products of protein metabolism), and 415 nm (the yellow pigments of the plasmodia) were studied in plasmodia of the myxomycete Physarum polycephalum. Plasmodia grown on a semidefined medium displayed a lower primary thermoresistance of the protoplasmic streaming, and had a lower Q 10 coefficient of the heat injury of this function compared to those grown on rolled oats. They are able to repair thermal injuries during heating. The primary thermoresistance of the protoplasmic streaming is not changed during the mitotic cycle. A 10 min heating at 32°C lowers the rate of protoplasmic streaming and results in a leakage of plasmodial pigments. After a 10 min exposure at 37–38°C the protoplasmic streaming is stopped, the respiration reduced, and products of nucleic acid metabolism are detectable in the heating fluid. Leakage of protein metabolits was observed after 10 min heatshocks at 41°C. A heating of the plasmodia to 47–50°C caused the highest level of leaked substances and the complete cessation of respiration. In contrast to higher plants, the respiration and leakage of the pigments are thermolabile indicators of the condition of Physarum polycephalum plasmodia. Springer Online Journal Archives 1860-2002 Bernstam, Victor A. oth Arndt, Stephan oth in Archives of microbiology 1930 92(1973) vom: März, Seite 251-261 (DE-627)NLEJ188986545 (DE-600)1458451-7 1432-072X nnns volume:92 year:1973 month:03 pages:251-261 extent:11 http://dx.doi.org/10.1007/BF00411206 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 92 1973 3 251-261 11 |
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(DE-627)NLEJ200223941 DE-627 ger DE-627 rakwb eng Effects of supraoptimal temperatures on the myxomycete Phyrasum polycephalum 1973 11 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Summary The effects of heat shock on the protoplasmic streaming, respiration and leakage of plasmodial constituents absorbing at 260 nm (products of nucleic acid metabolism), 280 nm (products of protein metabolism), and 415 nm (the yellow pigments of the plasmodia) were studied in plasmodia of the myxomycete Physarum polycephalum. Plasmodia grown on a semidefined medium displayed a lower primary thermoresistance of the protoplasmic streaming, and had a lower Q 10 coefficient of the heat injury of this function compared to those grown on rolled oats. They are able to repair thermal injuries during heating. The primary thermoresistance of the protoplasmic streaming is not changed during the mitotic cycle. A 10 min heating at 32°C lowers the rate of protoplasmic streaming and results in a leakage of plasmodial pigments. After a 10 min exposure at 37–38°C the protoplasmic streaming is stopped, the respiration reduced, and products of nucleic acid metabolism are detectable in the heating fluid. Leakage of protein metabolits was observed after 10 min heatshocks at 41°C. A heating of the plasmodia to 47–50°C caused the highest level of leaked substances and the complete cessation of respiration. In contrast to higher plants, the respiration and leakage of the pigments are thermolabile indicators of the condition of Physarum polycephalum plasmodia. Springer Online Journal Archives 1860-2002 Bernstam, Victor A. oth Arndt, Stephan oth in Archives of microbiology 1930 92(1973) vom: März, Seite 251-261 (DE-627)NLEJ188986545 (DE-600)1458451-7 1432-072X nnns volume:92 year:1973 month:03 pages:251-261 extent:11 http://dx.doi.org/10.1007/BF00411206 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 92 1973 3 251-261 11 |
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(DE-627)NLEJ200223941 DE-627 ger DE-627 rakwb eng Effects of supraoptimal temperatures on the myxomycete Phyrasum polycephalum 1973 11 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Summary The effects of heat shock on the protoplasmic streaming, respiration and leakage of plasmodial constituents absorbing at 260 nm (products of nucleic acid metabolism), 280 nm (products of protein metabolism), and 415 nm (the yellow pigments of the plasmodia) were studied in plasmodia of the myxomycete Physarum polycephalum. Plasmodia grown on a semidefined medium displayed a lower primary thermoresistance of the protoplasmic streaming, and had a lower Q 10 coefficient of the heat injury of this function compared to those grown on rolled oats. They are able to repair thermal injuries during heating. The primary thermoresistance of the protoplasmic streaming is not changed during the mitotic cycle. A 10 min heating at 32°C lowers the rate of protoplasmic streaming and results in a leakage of plasmodial pigments. After a 10 min exposure at 37–38°C the protoplasmic streaming is stopped, the respiration reduced, and products of nucleic acid metabolism are detectable in the heating fluid. Leakage of protein metabolits was observed after 10 min heatshocks at 41°C. A heating of the plasmodia to 47–50°C caused the highest level of leaked substances and the complete cessation of respiration. In contrast to higher plants, the respiration and leakage of the pigments are thermolabile indicators of the condition of Physarum polycephalum plasmodia. Springer Online Journal Archives 1860-2002 Bernstam, Victor A. oth Arndt, Stephan oth in Archives of microbiology 1930 92(1973) vom: März, Seite 251-261 (DE-627)NLEJ188986545 (DE-600)1458451-7 1432-072X nnns volume:92 year:1973 month:03 pages:251-261 extent:11 http://dx.doi.org/10.1007/BF00411206 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 92 1973 3 251-261 11 |
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Effects of supraoptimal temperatures on the myxomycete Phyrasum polycephalum |
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Summary The effects of heat shock on the protoplasmic streaming, respiration and leakage of plasmodial constituents absorbing at 260 nm (products of nucleic acid metabolism), 280 nm (products of protein metabolism), and 415 nm (the yellow pigments of the plasmodia) were studied in plasmodia of the myxomycete Physarum polycephalum. Plasmodia grown on a semidefined medium displayed a lower primary thermoresistance of the protoplasmic streaming, and had a lower Q 10 coefficient of the heat injury of this function compared to those grown on rolled oats. They are able to repair thermal injuries during heating. The primary thermoresistance of the protoplasmic streaming is not changed during the mitotic cycle. A 10 min heating at 32°C lowers the rate of protoplasmic streaming and results in a leakage of plasmodial pigments. After a 10 min exposure at 37–38°C the protoplasmic streaming is stopped, the respiration reduced, and products of nucleic acid metabolism are detectable in the heating fluid. Leakage of protein metabolits was observed after 10 min heatshocks at 41°C. A heating of the plasmodia to 47–50°C caused the highest level of leaked substances and the complete cessation of respiration. In contrast to higher plants, the respiration and leakage of the pigments are thermolabile indicators of the condition of Physarum polycephalum plasmodia. |
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Summary The effects of heat shock on the protoplasmic streaming, respiration and leakage of plasmodial constituents absorbing at 260 nm (products of nucleic acid metabolism), 280 nm (products of protein metabolism), and 415 nm (the yellow pigments of the plasmodia) were studied in plasmodia of the myxomycete Physarum polycephalum. Plasmodia grown on a semidefined medium displayed a lower primary thermoresistance of the protoplasmic streaming, and had a lower Q 10 coefficient of the heat injury of this function compared to those grown on rolled oats. They are able to repair thermal injuries during heating. The primary thermoresistance of the protoplasmic streaming is not changed during the mitotic cycle. A 10 min heating at 32°C lowers the rate of protoplasmic streaming and results in a leakage of plasmodial pigments. After a 10 min exposure at 37–38°C the protoplasmic streaming is stopped, the respiration reduced, and products of nucleic acid metabolism are detectable in the heating fluid. Leakage of protein metabolits was observed after 10 min heatshocks at 41°C. A heating of the plasmodia to 47–50°C caused the highest level of leaked substances and the complete cessation of respiration. In contrast to higher plants, the respiration and leakage of the pigments are thermolabile indicators of the condition of Physarum polycephalum plasmodia. |
| abstract_unstemmed |
Summary The effects of heat shock on the protoplasmic streaming, respiration and leakage of plasmodial constituents absorbing at 260 nm (products of nucleic acid metabolism), 280 nm (products of protein metabolism), and 415 nm (the yellow pigments of the plasmodia) were studied in plasmodia of the myxomycete Physarum polycephalum. Plasmodia grown on a semidefined medium displayed a lower primary thermoresistance of the protoplasmic streaming, and had a lower Q 10 coefficient of the heat injury of this function compared to those grown on rolled oats. They are able to repair thermal injuries during heating. The primary thermoresistance of the protoplasmic streaming is not changed during the mitotic cycle. A 10 min heating at 32°C lowers the rate of protoplasmic streaming and results in a leakage of plasmodial pigments. After a 10 min exposure at 37–38°C the protoplasmic streaming is stopped, the respiration reduced, and products of nucleic acid metabolism are detectable in the heating fluid. Leakage of protein metabolits was observed after 10 min heatshocks at 41°C. A heating of the plasmodia to 47–50°C caused the highest level of leaked substances and the complete cessation of respiration. In contrast to higher plants, the respiration and leakage of the pigments are thermolabile indicators of the condition of Physarum polycephalum plasmodia. |
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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">NLEJ200223941</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20210706042959.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">070527s1973 xx |||||o 00| ||eng c</controlfield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)NLEJ200223941</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">Effects of supraoptimal temperatures on the myxomycete Phyrasum polycephalum</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">1973</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">11</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 effects of heat shock on the protoplasmic streaming, respiration and leakage of plasmodial constituents absorbing at 260 nm (products of nucleic acid metabolism), 280 nm (products of protein metabolism), and 415 nm (the yellow pigments of the plasmodia) were studied in plasmodia of the myxomycete Physarum polycephalum. Plasmodia grown on a semidefined medium displayed a lower primary thermoresistance of the protoplasmic streaming, and had a lower Q 10 coefficient of the heat injury of this function compared to those grown on rolled oats. They are able to repair thermal injuries during heating. The primary thermoresistance of the protoplasmic streaming is not changed during the mitotic cycle. A 10 min heating at 32°C lowers the rate of protoplasmic streaming and results in a leakage of plasmodial pigments. After a 10 min exposure at 37–38°C the protoplasmic streaming is stopped, the respiration reduced, and products of nucleic acid metabolism are detectable in the heating fluid. Leakage of protein metabolits was observed after 10 min heatshocks at 41°C. A heating of the plasmodia to 47–50°C caused the highest level of leaked substances and the complete cessation of respiration. In contrast to higher plants, the respiration and leakage of the pigments are thermolabile indicators of the condition of Physarum polycephalum plasmodia.</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">Bernstam, Victor A.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Arndt, Stephan</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">in</subfield><subfield code="t">Archives of microbiology</subfield><subfield code="d">1930</subfield><subfield code="g">92(1973) vom: März, Seite 251-261</subfield><subfield code="w">(DE-627)NLEJ188986545</subfield><subfield code="w">(DE-600)1458451-7</subfield><subfield code="x">1432-072X</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:92</subfield><subfield code="g">year:1973</subfield><subfield code="g">month:03</subfield><subfield code="g">pages:251-261</subfield><subfield code="g">extent:11</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">http://dx.doi.org/10.1007/BF00411206</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">92</subfield><subfield code="j">1973</subfield><subfield code="c">3</subfield><subfield code="h">251-261</subfield><subfield code="g">11</subfield></datafield></record></collection>
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7.40007 |