附着在不同微塑料表面的藻类结构与群落组成

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Abstract To investigate the structure of biofilms and community composition of algae attached to the surface of common microplastic substrates, four types of microplastics (polypropylene (PP), polyvinyl chloride (PVC), polyethylene (PE), polyethylene terephthalate (PET) and a natural substrate (cobblestone) were selected to conduct field incubation of biofilms. The result showed that the morphology and structure of the biofilms were different between cobblestones and microplastic substrates, as well as in the contents and composition of algae. The chlorophyll-a contents in algae attached to the microplastic substrates were generally lower than those in natural substrate. Moreover, different algae content and functional characteristics were also observed from thefour microplastics. The highest chlorophyll-a content of algae was observed on PET substrate (613.7μg/L) and the lowest on PP substrate (492.5μg/L), although the maximal quantum yield of algae on PP substrate was the highest (0.443). These results suggested that the microplastic substrates could influence the growth and primary production of periphytic algae, which might further affect the microbial-associated carbon cycling in aquatic systems, water purification, and pollution treatment.

Key words： microplastics biofilm periphytic algae chlorophyll-a content maximal quantum yield

Received: 08 January 2020

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X52

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	Articles by authors
	LI Chen-xi
	GAO Yu-xuan
	ZHANG Jia-qi
	XU Liu-xuan
	LIU Zhi-lin
	MIAO Ling-zhan
	HOU Jun

Cite this article:

LI Chen-xi,GAO Yu-xuan,ZHANG Jia-qi等. Structure and community composition of algae attached to different microplastic substrates[J]. CHINA ENVIRONMENTAL SCIENCECE, 2020, 40(8): 3360-3366.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2020/V40/I8/3360

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