Development of oogonia of Sargassum horneri (Fucales, Heterokontophyta) and concomitant variations in PSII photosynthetic activities

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	Development of oogonia of Sargassum horneri (Fucales, Heterokontophyta) and concomitant variations in PSII photosynthetic activities
	Xie, Xiujun 1; Wang, Guangce 2; Pan, Guanghua 1; Sun, Jianzhang 3; Li, Jian 4
刊名	PHYCOLOGIA
	2014
卷号	53 期号:1 页码:10-14
关键词	Fucales Morphogenisis Oogenesis PS II Sargassum horneri
通讯作者	Wang, GC (reprint author), Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China.
英文摘要	Sargassum horneri is one of the most important seaweeds used to restore degraded coastal environments near Nanji Island, China. However, its reproductive characteristics, especially those of oogenesis and the concomitant changes in photosynthetic activities, remained uncertain. Herein we documented the processes of conceptacle and female gamete formation and the photosystem II (PSII) changes that accompanied them. Thalli of S. horneri were dioecious, the oogonial conceptacles maturing acropetally on the axillary receptacles. Conceptacles were originated from the epidermal cells, the cells lining the inner surface of the cavity ultimately differentiating into either sterile unbranched paraphyses or oogonia. The PSII photosynthetic activities of oogonia continuously diminished with increasing maturation. The value of Fv/Fm decreased from 0.55 +/- 0.01 for recently initiated oogonia to 0.27 +/- 0.05 for mature oogonia. The diameters of the oogonia increased approximately 20 times from initiation to maturity. The possible nutrition sources of oogonia during their development are discussed.
学科主题	Plant Sciences; Marine & Freshwater Biology
收录类别	SCI
语种	英语
WOS记录号	WOS:000333098400002
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/24103]
专题	海洋研究所_实验海洋生物学重点实验室
作者单位	1.Tianjin Univ Sci & Technol, Coll Marine Sci & Engn, Tianjin Key Lab Marine Resources & Chem, Tianjin 300457, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 3.Nanji Isl Dev Co Ltd, Aojiang 325601, Pingyang County, Peoples R China 4.Catholic Univ Louvain, Earth & Life Inst, B-1348 Louvain, Belgium
推荐引用方式 GB/T 7714	Xie, Xiujun,Wang, Guangce,Pan, Guanghua,et al. Development of oogonia of Sargassum horneri (Fucales, Heterokontophyta) and concomitant variations in PSII photosynthetic activities[J]. PHYCOLOGIA,2014,53(1):10-14.
APA	Xie, Xiujun,Wang, Guangce,Pan, Guanghua,Sun, Jianzhang,&Li, Jian.(2014).Development of oogonia of Sargassum horneri (Fucales, Heterokontophyta) and concomitant variations in PSII photosynthetic activities.PHYCOLOGIA,53(1),10-14.
MLA	Xie, Xiujun,et al."Development of oogonia of Sargassum horneri (Fucales, Heterokontophyta) and concomitant variations in PSII photosynthetic activities".PHYCOLOGIA 53.1(2014):10-14.