VARIATIONS IN THE CELL WALLS AND PHOTOSYNTHETIC PROPERTIES OF PORPHYRA YEZOENSIS (BANGIALES, RHODOPHYTA) DURING ARCHEOSPORE FORMATION

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	VARIATIONS IN THE CELL WALLS AND PHOTOSYNTHETIC PROPERTIES OF PORPHYRA YEZOENSIS (BANGIALES, RHODOPHYTA) DURING ARCHEOSPORE FORMATION
	Gao, Shan ; Wang, Guangce ; Yang, Ruiling ; Xie, Xiujun ; Pan, Guanghua ; Xu, Pu ; Zhu, Jianyi
刊名	JOURNAL OF PHYCOLOGY
	2011
卷号	47 期号:4 页码:839-845
关键词	archeospore cell wall chlorophyll fluorescence photosynthetic properties Porphyra yezoensis
ISSN号	0022-3646
中文摘要	The formation of archeospores is characteristic of Porphyra yezoensis Ueda and is important for Porphyra aquaculture. Recently, it has been regarded as a valuable seed source for propagation of thalli in mariculture. Cell wall composition changes are associated with archeospore formation in P. yezoensis. Here, we report changes of cell walls of P. yezoensis during archeospore formation. The surfaces of vegetative cells that were originally smooth became rougher and more protuberant as archeosporangia were formed. Ultimately, the cell walls of archeosporangia ruptured, and archeospores were released from the torn cell walls that were left at distal margins of thalli. With changes in cell walls, both effective quantum yield and maximal quantum yield of the same regions in thalli gradually increased during the transformation of vegetative cells to archeospores, suggesting that the photosynthetic properties of the same regions in thalli gradually increased. Meanwhile, photosynthetic parameters for different sectors of thalli were determined, which included the proximal vegetative cells, archeosporangia, and newly released archeospores. The changes in photosynthetic properties of different sectors of thalli were in accordance with that of the same regions in thalli at different stages. In addition, the photosynthetic responses of archeosporangia to light showed higher saturating irradiance levels than those of vegetative cells. All these results suggest that archeosporangial cell walls were not degraded prior to release but were ruptured via bulging of the archeospore within the sporangium, and ultimately, archeospores were discharged. The accumulation of carbohydrates during archeospore formation in P. yezoensis might be required for the release of archeospores.
学科主题	Plant Sciences; Marine & Freshwater Biology
收录类别	SCI
原文出处	10.1111/j.1529-8817.2011.01003.x
语种	英语
公开日期	2012-07-03
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/11987]
专题	海洋研究所_实验海洋生物学重点实验室
推荐引用方式 GB/T 7714	Gao, Shan,Wang, Guangce,Yang, Ruiling,et al. VARIATIONS IN THE CELL WALLS AND PHOTOSYNTHETIC PROPERTIES OF PORPHYRA YEZOENSIS (BANGIALES, RHODOPHYTA) DURING ARCHEOSPORE FORMATION[J]. JOURNAL OF PHYCOLOGY,2011,47(4):839-845.
APA	Gao, Shan.,Wang, Guangce.,Yang, Ruiling.,Xie, Xiujun.,Pan, Guanghua.,...&Zhu, Jianyi.(2011).VARIATIONS IN THE CELL WALLS AND PHOTOSYNTHETIC PROPERTIES OF PORPHYRA YEZOENSIS (BANGIALES, RHODOPHYTA) DURING ARCHEOSPORE FORMATION.JOURNAL OF PHYCOLOGY,47(4),839-845.
MLA	Gao, Shan,et al."VARIATIONS IN THE CELL WALLS AND PHOTOSYNTHETIC PROPERTIES OF PORPHYRA YEZOENSIS (BANGIALES, RHODOPHYTA) DURING ARCHEOSPORE FORMATION".JOURNAL OF PHYCOLOGY 47.4(2011):839-845.