Early development of Costaria costata (C. Agardh) Saunders and cultivation trials

doi:10.1007/s00343-010-9051-0

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	Early development of Costaria costata (C. Agardh) Saunders and cultivation trials
	Fu Gang 1,2; Liu Jidong 1; Wang Gaoge 2; Yao Jianting 1; Wang Xiuliang 1; Duan Delin 1
	2010-07-01
发表期刊	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN	0254-4059
卷号	28 期号:4 页码:731-737
文章类型	Article
摘要	Costaria costata (C. Agardh) Saunders is one of common kelps distributed in many coastal areas worldwide; however, in China, no reports have been made on cultivation of the genus. To investigate potential cultivation of the species in the northern part of China, trials on isolation and preservation of the gametophytes were conducted using C. costata from Korea; growth and development of the gametophytes were observed. We showed that at 10 +/- 1A degrees C, 60 mu mol m(-2)s(-1) and 12:12 h (L:D), freshly released zoospores settled down within 1 hour, and then developed into the primary cell during the following 2 days. After a vegetative growth phase lasting 6-8 days, female gametophytes became 3-4 times larger in diameter than that of the primary cell, but still remained at a unicellular stage, while male gametophytes divided into 4-10 cells with only a slight change in size. Fertilization occurred within 10 days after the zoospores were released from the sporangia, and the apical and basal tissues of the juvenile sporophyte divided and differentiated into the blade and stipe. Temperature and irradiance influenced gametophytic vegetative growth and developmental patterns. Generally, low irradiance (15 mu mol m(-2)s(-1) and 30 mu mol m(-2)s(-1)) was unfavorable to the induction of fertility, but it enhanced female gametophyte division. The optimal conditions for vegetative growth were 15A degrees C and 30 mu mol m(-2)s(-1). After transplantation of the juvenile seedlings and after eight months cultivation, the harvested mature blade reached 194 cm in length and 32.7 cm in width. Our study proves that it is feasible to implement propagation and large scale cultivation of C. costata in northern China.; Costaria costata (C. Agardh) Saunders is one of common kelps distributed in many coastal areas worldwide; however, in China, no reports have been made on cultivation of the genus. To investigate potential cultivation of the species in the northern part of China, trials on isolation and preservation of the gametophytes were conducted using C. costata from Korea; growth and development of the gametophytes were observed. We showed that at 10 +/- 1A degrees C, 60 mu mol m(-2)s(-1) and 12:12 h (L:D), freshly released zoospores settled down within 1 hour, and then developed into the primary cell during the following 2 days. After a vegetative growth phase lasting 6-8 days, female gametophytes became 3-4 times larger in diameter than that of the primary cell, but still remained at a unicellular stage, while male gametophytes divided into 4-10 cells with only a slight change in size. Fertilization occurred within 10 days after the zoospores were released from the sporangia, and the apical and basal tissues of the juvenile sporophyte divided and differentiated into the blade and stipe. Temperature and irradiance influenced gametophytic vegetative growth and developmental patterns. Generally, low irradiance (15 mu mol m(-2)s(-1) and 30 mu mol m(-2)s(-1)) was unfavorable to the induction of fertility, but it enhanced female gametophyte division. The optimal conditions for vegetative growth were 15A degrees C and 30 mu mol m(-2)s(-1). After transplantation of the juvenile seedlings and after eight months cultivation, the harvested mature blade reached 194 cm in length and 32.7 cm in width. Our study proves that it is feasible to implement propagation and large scale cultivation of C. costata in northern China.
关键词	Costaria Costata Gametophyte Growth Development Cultivation
学科领域	Limnology ; Oceanography
DOI	10.1007/s00343-010-9051-0
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000279294400004
引用统计	被引频次：6[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/337002/5824
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.Ocean Univ China, Coll Marine Life Sci, Qingdao 266100, 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	Fu Gang,Liu Jidong,Wang Gaoge,et al. Early development of Costaria costata (C. Agardh) Saunders and cultivation trials[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2010,28(4):731-737.
APA	Fu Gang,Liu Jidong,Wang Gaoge,Yao Jianting,Wang Xiuliang,&Duan Delin.(2010).Early development of Costaria costata (C. Agardh) Saunders and cultivation trials.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,28(4),731-737.
MLA	Fu Gang,et al."Early development of Costaria costata (C. Agardh) Saunders and cultivation trials".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 28.4(2010):731-737.

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