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	Performances of growth, photochemical efficiency, and stress tolerance of young sporophytes from seven populations of Saccharina japonica (Phaeophyta) under short-term heat stress
	Liu, Feng1,2; Pang, Shao Jun1
	2010-04-01
发表期刊	JOURNAL OF APPLIED PHYCOLOGY
卷号	22期号:2页码:221-229
文章类型	Article
摘要	Temperature is one of the primary factors determining the geographic boundaries of the kelp Saccharina japonica. To compare the resistance of the offspring from different populations to heat stress, seven populations including Zhen-farmed population (ZFP), Daban-farmed population (DFP), Fujian-farmed population (FFP), Yanza-farmed population (YFP), Benniu-farmed population (BFP), Gaolv wild population (GWP) and Qingdao wild population (QWP) were chosen from different farms along the coasts of China where intensive farming of this species has been carried out. Offspring from these populations were obtained in the laboratory. The young sporophytes (1-3 cm) were subjected for 7 days to different temperature treatments of 10, 21, and 23A degrees C, respectively. The results showed that blade elongation rates were retarded both at 21A degrees C and 23A degrees C in all the populations. The percentages of plants that developed white blade tip were more serious in ZFP, YFP, and DFP than in other populations. Offspring from QWP demonstrated the most outstanding capacity to resist high temperature, as judged by the results of the maximal photochemical efficiency (F (v)/F (m)), the potential photochemical efficiency (F (v)/F (o)), content of malondialdehyde and the regulation of antioxidant enzymatic systems. Next were the offspring from GWP and FFP. Offspring from ZFP had the least heat-stress tolerance. Three lines of evidence obtained in the present study further confirmed that QWP distributed at 36A degrees N, the most southern distribution limit of this species in the North-Western coast of the Pacific, was the most ideal source as parental plants for breeding high-temperature-tolerant cultivar.
关键词	Saccharina Japonica Heat Stress f(v)/f(m) Superoxide Dismutase Reactive Oxygen Species
DOI	10.1007/s10811-009-9445-6
收录类别	SCI
语种	英语
WOS记录号	WOS:000275538700014
引用统计	被引频次：25[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/337002/32712
专题	实验海洋生物学重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Marine Biol Culture Collect Ctr, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, 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	Liu, Feng,Pang, Shao Jun. Performances of growth, photochemical efficiency, and stress tolerance of young sporophytes from seven populations of Saccharina japonica (Phaeophyta) under short-term heat stress[J]. JOURNAL OF APPLIED PHYCOLOGY,2010,22(2):221-229.
APA	Liu, Feng,&Pang, Shao Jun.(2010).Performances of growth, photochemical efficiency, and stress tolerance of young sporophytes from seven populations of Saccharina japonica (Phaeophyta) under short-term heat stress.JOURNAL OF APPLIED PHYCOLOGY,22(2),221-229.
MLA	Liu, Feng,et al."Performances of growth, photochemical efficiency, and stress tolerance of young sporophytes from seven populations of Saccharina japonica (Phaeophyta) under short-term heat stress".JOURNAL OF APPLIED PHYCOLOGY 22.2(2010):221-229.

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