Observations in Hemichloris antarctica Tschermak-Woess & Friedmann . . . .
The chlorococcalean genus Hemichloris is characterized by the possession of two chloroplasts per vegetative cell. The occurrence of a second species of the genus is reported (H. polyspora sp. nov.). Just as H. antarctica it grows cryptoendolithically in sandstone in Southern Victoria Land, Antarctic...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.183.8639 2023-05-15T13:32:05+02:00 Observations in Hemichloris antarctica Tschermak-Woess & Friedmann . . . . E. Tschermak-Woess M. Hua G. Gärtner M. Hesse The Pennsylvania State University CiteSeerX Archives 2006 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.183.8639 http://www.math.tugraz.at/%7Ewoess/papers/tschermak-woess.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.183.8639 http://www.math.tugraz.at/%7Ewoess/papers/tschermak-woess.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.math.tugraz.at/%7Ewoess/papers/tschermak-woess.pdf Key words Algae Chlorophyceae Hemichloris antarctica Hemichloris polyspora Tschermak-Woess Hua Ga¨rtner et Hesse structure development plastoglobuli text 2006 ftciteseerx 2016-01-07T16:35:08Z The chlorococcalean genus Hemichloris is characterized by the possession of two chloroplasts per vegetative cell. The occurrence of a second species of the genus is reported (H. polyspora sp. nov.). Just as H. antarctica it grows cryptoendolithically in sandstone in Southern Victoria Land, Antarctica. In H. antarctica propagation by two autospores prevails over four, whilst in the new species H. polyspora in general four or eight (rarely 16 or 32) autospores are produced and Borodinellastages do occur typically. Sexuality and zoosporulation do not exist in both species. Internal structures of chloroplasts can be observed by light microscopy more regularly in H. polyspora than in H. antarctica and under various conditions. Investigations of both Hemichloris species by transmission electron microscopy show them to go back to more or less extended assemblages of plastoglobuli. In both species the plastoglobuli are arranged around tubular inflations of thylakoids and apparently attached to the thylakoids. Keeping the cultures for three (even up to seven) months without light makes them survive and causes coming forth of the chloroplast structure throughout. Text Antarc* Antarctica Victoria Land Unknown Victoria Land |
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Open Polar |
collection |
Unknown |
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ftciteseerx |
language |
English |
topic |
Key words Algae Chlorophyceae Hemichloris antarctica Hemichloris polyspora Tschermak-Woess Hua Ga¨rtner et Hesse structure development plastoglobuli |
spellingShingle |
Key words Algae Chlorophyceae Hemichloris antarctica Hemichloris polyspora Tschermak-Woess Hua Ga¨rtner et Hesse structure development plastoglobuli E. Tschermak-Woess M. Hua G. Gärtner M. Hesse Observations in Hemichloris antarctica Tschermak-Woess & Friedmann . . . . |
topic_facet |
Key words Algae Chlorophyceae Hemichloris antarctica Hemichloris polyspora Tschermak-Woess Hua Ga¨rtner et Hesse structure development plastoglobuli |
description |
The chlorococcalean genus Hemichloris is characterized by the possession of two chloroplasts per vegetative cell. The occurrence of a second species of the genus is reported (H. polyspora sp. nov.). Just as H. antarctica it grows cryptoendolithically in sandstone in Southern Victoria Land, Antarctica. In H. antarctica propagation by two autospores prevails over four, whilst in the new species H. polyspora in general four or eight (rarely 16 or 32) autospores are produced and Borodinellastages do occur typically. Sexuality and zoosporulation do not exist in both species. Internal structures of chloroplasts can be observed by light microscopy more regularly in H. polyspora than in H. antarctica and under various conditions. Investigations of both Hemichloris species by transmission electron microscopy show them to go back to more or less extended assemblages of plastoglobuli. In both species the plastoglobuli are arranged around tubular inflations of thylakoids and apparently attached to the thylakoids. Keeping the cultures for three (even up to seven) months without light makes them survive and causes coming forth of the chloroplast structure throughout. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
E. Tschermak-Woess M. Hua G. Gärtner M. Hesse |
author_facet |
E. Tschermak-Woess M. Hua G. Gärtner M. Hesse |
author_sort |
E. Tschermak-Woess |
title |
Observations in Hemichloris antarctica Tschermak-Woess & Friedmann . . . . |
title_short |
Observations in Hemichloris antarctica Tschermak-Woess & Friedmann . . . . |
title_full |
Observations in Hemichloris antarctica Tschermak-Woess & Friedmann . . . . |
title_fullStr |
Observations in Hemichloris antarctica Tschermak-Woess & Friedmann . . . . |
title_full_unstemmed |
Observations in Hemichloris antarctica Tschermak-Woess & Friedmann . . . . |
title_sort |
observations in hemichloris antarctica tschermak-woess & friedmann . . . . |
publishDate |
2006 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.183.8639 http://www.math.tugraz.at/%7Ewoess/papers/tschermak-woess.pdf |
geographic |
Victoria Land |
geographic_facet |
Victoria Land |
genre |
Antarc* Antarctica Victoria Land |
genre_facet |
Antarc* Antarctica Victoria Land |
op_source |
http://www.math.tugraz.at/%7Ewoess/papers/tschermak-woess.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.183.8639 http://www.math.tugraz.at/%7Ewoess/papers/tschermak-woess.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766024088330960896 |