Translocation of assimilates in Undaria and its cultivation in China

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	Translocation of assimilates in Undaria and its cultivation in China
	Wu, CY; Meng, JX
刊名	HYDROBIOLOGIA
	1997
卷号	352 页码:287-293
ISSN号	0018-8158
英文摘要	Undaria cultivation on a commercial scale began in China only in the last decade. Today, Undaria pinnatifida is the main species under cultivation concentrated in two provinces, Liaoning and Shandong. The annual production in the early nineties was 8000-13 000 tons dry weight, which is two or three times the pre-1980 figures. The raft cultivation method maintaining the alga at the desired depths generally ensures the light saturated rate of photosynthesis on clear days, and enhances production. Under the cultivated condition, the calculated annual primary productivity of this alga is 160 g C m(-2) y(-1). Translocation of C-14-labelled photoassimilates in rapidly growing sporophyte of Undaria pinnatifida was studied in the open sea. Samples from different parts of the blade with counterparts exposed to tracer ((NaHCO3)-C-14) showed that the translocation that occurred mainly from the tip of the blade to the growing region had obvious source-sink relationship. It took 20 minutes to translocate the labelled photoassimilates from the epidermis, via cortex, to the medulla of the midrib, where rates of translocation averaging 42-48 cm h(-1) were observed in the open sea. Production experiments of tip-cutting of the blades showed an increased production of 9%.
学科主题	Marine & Freshwater Biology
公开日期	2010-12-22
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/3385]
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	Wu, CY,Meng, JX. Translocation of assimilates in Undaria and its cultivation in China[J]. HYDROBIOLOGIA,1997,352:287-293.
APA	Wu, CY,&Meng, JX.(1997).Translocation of assimilates in Undaria and its cultivation in China.HYDROBIOLOGIA,352,287-293.
MLA	Wu, CY,et al."Translocation of assimilates in Undaria and its cultivation in China".HYDROBIOLOGIA 352(1997):287-293.