典型稻田土壤真菌群落结构及多样性对比

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Abstract To understand the differences in fungal community structure and diversity in paddy field soils developed from different parent materials in the main rice growing areas of China, five typical paddy soils, i.e., latosol, red soil, saline alkali soil, black soil and purple soil, were analyzed for the fungi species composition and community diversity by high-throughput sequencing technology. Soil water content, pH, salinity, and bulk density were significantly different (P<0.05) beween the five typical paddy soils. Chao1index indicated that the richness of the fungal community in the paddy soil types was in the order of red soil > black soil > latosol > purple soil > saline-alkali soil. The ACE index suggested that the richness of the fungal communities was in the order of black soil > red soil > latosol > purple soil > saline-alkali soil. Both Shannon index and Simpson index of community diversity were in the order of black soil > purple soil > red soil > latosol > saline-alkali soil. The phylum with the highest relative abundance was Ascomycota in all five typical paddy soils. The dominant fungi genera were Emericellopsis, (Emericellopsis, Cladorrhinum and Zopfiella), (Emericellopsis and Monographella), and Phialocephala for the paddy soils developed from latosol and red soil, purple soil, black soil and saline alkali soil, respectively. The relative abundance of Xanthoria, Cyberlindnera, Penicillium, and Westerdykella were significantly and negatively correlated with soil pH (P<0.05). Furthermore, the relative abundance of Ceroophora was significantly and negatively correlated with soil water content, and the relative abundance of Sarocladium was significantly and positively with dissolved organic carbon (P<0.01) across soil types. The fungi community structure and diversity were significantly affected by the paddy soil developed from previous reclamation types, and the fungi genera richness and dominant genera were sensitive to the changes of soil physical and chemical properties.

Key words： fungi community structure diversity paddy soil

Received: 05 February 2020

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	YANG Xiang
	HUANG Xiao-ting
	WANG Chun
	WANG Xiao-tong
	YIN Xiao-lei
	LIN Shao-ying
	WANG Wei-qi

Cite this article:

YANG Xiang,HUANG Xiao-ting,WANG Chun等. Comparison of fungal community structure and diversity in typical paddy fields[J]. CHINA ENVIRONMENTAL SCIENCECE, 2020, 40(10): 4549-4556.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2020/V40/I10/4549

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