The ultrastructure of separated and cultured cell of Porphyra yezoensis |
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| Authors: | Mei Jun-xue and Fei Xiu-geng |
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| Institution: | (1) Institute of Oceanology, Chinese Academy of Sciences, 266071 Qingdao, China;(2) Marine Biotechnology Department, Shandong University at Weihai, 264200 Weihai, China |
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| Abstract: | There are many reports that cells (protoplasts) separated from the thallus ofPorphyra by enzyme can develop to normal leafy thalli in the same way as monospores. But there are few investigations on the subcellular
structure of the isolated vegetative cell for comparison with the subcellular structure of monospores. To clarify whether
the separated and cultured cells undergo the same or similar ultrastructure changes during culture and germination as monospores
undergo in their formation and germination, we observed their ultrastructure, compared them with those of the monospore and
found that the ultrastructure of separated and cultured cells did not have the characteristic feature as that of monospore
formation, such as production of small and large fibrous vesicles, but was accompanied by vacuolation and starch mobilization
like that in monospore germination. The paper also discusses the relations between monospores and separated and cultured cells.
Contribution No. 3875 from the Institute of Oceanology, Chinese Academy of Sciences.
Project 39770593 supported by NSFC; Project 96-C01-05-01 of the 9th Five-Year Plan supported by Science and Technology Commision
of China. |
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| Keywords: | ultrastructure cultured cell P yezoensis |
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