Formation and early development of tetraspores of Polysiphonia urceolata (Rhodomelaceae, Rhodophyta)

doi:10.1007/s00343-009-9115-1

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	Formation and early development of tetraspores of Polysiphonia urceolata (Rhodomelaceae, Rhodophyta)
	Yao Jianting 1,2; Li Dapeng 1; Yu Shenhui 1,2; Liu Jidong 1; Duan Delin 1
	2009-06-01
发表期刊	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN	0254-4059
卷号	27 期号:2 页码:365-369
文章类型	Article
摘要	Polysiphonia urceolata is one type of potential commercial red seaweeds used for breeding and cultivation, because of its significant biochemical and biomedical application. However, the information of breeding and seedling incubation for cultivation is limited, especially the early development. In this study, tetrasporohyte and gametophyte of P. urceolata were taken as the study materials in Huiquan Bay, Qingdao, China. The cleaned and sterilized tetrasporophytes and gametophytes were pre-cultured in sterilized seawater, then nurtured at 18A degrees C, 25 mu mol photons m(-2) s(-1) in 12:12 h (light:dark) photoperiod. Continuous observation under microscope showed that the early development consists of bipolar division stage and seedling stage. In the division stage, tetraspores germinate into bipolar sporelings that further differentiate into a colorless rhizoidal portion and a lightly pigmented upright shoot. The lightly pigmented rhizoidal cell develops to a rhizoid and the larger pigmented cell transforms to an erect axis. In the seedling stage, several quasi-protuberances appear on the erect axis and form juvenile seedlings. The results demonstrate the culture of P. urceolata from tetraspores under laboratory conditions.; Polysiphonia urceolata is one type of potential commercial red seaweeds used for breeding and cultivation, because of its significant biochemical and biomedical application. However, the information of breeding and seedling incubation for cultivation is limited, especially the early development. In this study, tetrasporohyte and gametophyte of P. urceolata were taken as the study materials in Huiquan Bay, Qingdao, China. The cleaned and sterilized tetrasporophytes and gametophytes were pre-cultured in sterilized seawater, then nurtured at 18A degrees C, 25 mu mol photons m(-2) s(-1) in 12:12 h (light:dark) photoperiod. Continuous observation under microscope showed that the early development consists of bipolar division stage and seedling stage. In the division stage, tetraspores germinate into bipolar sporelings that further differentiate into a colorless rhizoidal portion and a lightly pigmented upright shoot. The lightly pigmented rhizoidal cell develops to a rhizoid and the larger pigmented cell transforms to an erect axis. In the seedling stage, several quasi-protuberances appear on the erect axis and form juvenile seedlings. The results demonstrate the culture of P. urceolata from tetraspores under laboratory conditions.
关键词	Polysiphonia Urceolata Rhodophyta Early Development Tetraspore
学科领域	Limnology ; Oceanography
DOI	10.1007/s00343-009-9115-1
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000267970300023
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/3058
专题	实验海洋生物学重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Yao Jianting,Li Dapeng,Yu Shenhui,et al. Formation and early development of tetraspores of Polysiphonia urceolata (Rhodomelaceae, Rhodophyta)[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2009,27(2):365-369.
APA	Yao Jianting,Li Dapeng,Yu Shenhui,Liu Jidong,&Duan Delin.(2009).Formation and early development of tetraspores of Polysiphonia urceolata (Rhodomelaceae, Rhodophyta).CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,27(2),365-369.
MLA	Yao Jianting,et al."Formation and early development of tetraspores of Polysiphonia urceolata (Rhodomelaceae, Rhodophyta)".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 27.2(2009):365-369.

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