Relationship between Environmental Factors and Diversity of Culturable Yeasts in Rhizosphere Soil of Rice Field on Tibetan Plateau

WANG Yanhong; HAO Zhao; ZHANG Yanming; GUO Xiaofang; Deji

doi:10.19303/j.issn.1008-0384.2021.07.011

Volume 36 Issue 7

Jul. 2021

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Article Navigation > Fujian Journal of Agricultural Sciences > 2021 > 36(7): 817-825

WANG H Y, HAO Z, ZHANG Y M, et al. Relationship between Environmental Factors and Diversity of Culturable Yeasts in Rhizosphere Soil of Rice Field on Tibetan Plateau [J]. Fujian Journal of Agricultural Sciences，2021，36（7）：817−825 doi: 10.19303/j.issn.1008-0384.2021.07.011

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WANG H Y, HAO Z, ZHANG Y M, et al. Relationship between Environmental Factors and Diversity of Culturable Yeasts in Rhizosphere Soil of Rice Field on Tibetan Plateau [J]. Fujian Journal of Agricultural Sciences，2021，36（7）：817−825 doi: 10.19303/j.issn.1008-0384.2021.07.011

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Relationship between Environmental Factors and Diversity of Culturable Yeasts in Rhizosphere Soil of Rice Field on Tibetan Plateau

doi: 10.19303/j.issn.1008-0384.2021.07.011

WANG Yanhong^1
,,
HAO Zhao¹,
ZHANG Yanming²,
GUO Xiaofang^{1
,
,},
Deji ^{1
,
,}

1.
School of Science, Tibet University, Lhasa, Xizang　850000, China
2.
National Key Laboratory of Hybrid Rice/College of Life Sciences, Wuhan University, Wuhan, Hubei　430072, China

Received Date: 2021-03-11
Rev Recd Date: 2021-04-28

Available Online: 2021-07-13

Publish Date: 2021-07-28

Abstract

Abstract

Objective Diversity of culturable yeasts in rhizosphere soil of rice fields at Zayü County, Nyingchi City, Tibet was determined and its correlation with the environmental factors analyzed. Method Yeasts from the soil samples were isolated by dilution with a streaking plate method and identified by sequencing ITS domains of rRNA gene and conventional classification. Software R 3.6.1 was used to examine correlations between the yeast diversity and environmental factors. Result A total of 352 yeast strains of 10 genera and 13 species dominated by Cryptococcus podzolicus were isolated. The numbers extremely significantly correlated with the contents of total nitrogen (TN) and total phosphorus (TP) in the habitat rhizosphere soil. TN extremely significantly correlated to both Shannon-Wiener and Simpson diversity indices and significantly correlated to Pielou evenness index, but TP only significantly correlated to Shannon-Wiener diversity index. At species level, the abundance of Candida pseudolambica, Goffeauzyma gastrica, Papiliotrema aspenensis, and Solicoccozyma terricola significantly correlated to TN, G. gastrica and S. terricola extremely significantly and C. pseudolambica significantly correlated to TP, and P. aspenensis extremely significantly correlated to the water content (WC) in soil. Conclusion Different environmental factors affected differently on the rhizosphere yeast community on rice fields in the region. TN and TP in soil appeared to play a prominent role in that respect.
- Tibetan Plateau,
- rice field,
- rhizosphere soil,
- yeast,
- diversity,
- environmental factors

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