UV-B对两种藻光合色素和多糖含量的影响

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Abstract

The effects of different intensity of UV-B irradiation enhancement on photosynthetic pigments (cholophyll a and carotenoids) and polysacchride content were studied in Nanochloropsis sp. and Prorocentrum micans. Results proved that Nanochloropsis sp. is higher in UV resistance than Prorocentrum micans. Chla content in Nanochloropsis sp. mantained stable relatively during UV-B treatment, while Chla content in Prorocentrum micans decreased obviously. On the other hand, the lower dosage of UV-B induced a marked increase in carotenoids content for Nanochloropsis sp., which may protect Chla from damage, hence played an important role for Nanochloropsis sp. in resisting of UV-B enhancement. Moreover, polysaccharide content in Nanochloropsis sp. increased during UV-B treatment. It indicated that polysaccharide may have some functions against UV-B. Prorocentrum micans showed more sensitive to UV-B enhancement, consistent with its weaker functions.

Key words： UV-B irradiation carotenoids chlorophylla polysaccharide

Received: 25 February 2003

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	Articles by authors
	LI Zheng
	DUAN Shun-Shan
	WU Bao-Gan

Cite this article:

LI Zheng,DUAN Shun-Shan,WU Bao-Gan. Effects of different intensity of UV-B irradiation enhancement on photosynthetic pigments and polysaccharide content in two algae[J]. , 2003, 22(1): 42-44.

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http://www.ecolsci.com/EN/ OR http://www.ecolsci.com/EN/Y2003/V22/I1/42

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[1]	. [J]. Ecological Science, 2017, 36(5): 215-222.