Salt altered rhizosphere fungal community and induced soybean recruit specific species to ameliorate salt stress

Frontiers in Microbiology

Microbiology

Dezhi Han¹  Wei Wang²  Di Zhang³  Dongwei Han³  Ming Yuan³  Zhijia Zhu³  Lianxia Wang³  Junqiang Wang³  Bo Ma³  Zhen Wang³  Haoyue Sun³  Zhongcheng Qu³ 

[1] Heihe Branch of Heilongjiang Academy of Agricultural Sciences, Heihe, China;Institute of Soil Fertilizer and Environmental Resources, Heilongjiang Academy of Agricultural Sciences, Harbin, China;Qiqihar Branch of Heilongjiang Academy of Agricultural Sciences, Qiqihar, China;

关键词: soybean;    salt stress;    fungal structure;    network;    recruitment;   

DOI  :  10.3389/fmicb.2023.1142780

 received in 2023-01-12, accepted in 2023-01-26,  发布年份 2023

来源: Frontiers

【 摘 要 】

Different crop genotypes showed different adaptability to salt stress, which is partly attributable to the microorganisms in the rhizosphere. Yet, knowledge about how fungal communities of different genotypes in soybean respond to salt stress is limited. Here, qPCR and ITS sequencing were used to assess the response of rhizobial fungal communities of resistant and susceptible soybean to salt stress. Moreover, we isolated two fungal species recruited by resistant soybeans for validation. The assembly of fungal community structure might be strongly linked to alterations in fungal abundance and soil physicochemical properties. Salt stress derived structural differences in fungal communities of resistant and susceptible genotypes. The salt-resistant genotype appeared to recruit some fungal taxa to the rhizosphere to help mitigating salt stress. An increase of fungal taxa with predicted saprotrophic lifestyles might help promoting plant growth by increasing nutrient availability to the plants. Compared with the susceptible genotypes, the resistant genotypes had more stronger network structure of fungi. Lastly, we verified that recruited fungi, such as Penicillium and Aspergillus, can soybean adapt to salt stress. This study provided a promising approach for rhizospheric fungal community to enhance salt tolerance of soybean from the perspective of microbiology and ecology.

【 授权许可】

Unknown   
Copyright © 2023 Yuan, Zhang, Wang, Zhu, Sun, Wang, Han, Qu, Ma, Wang, Wang and Han.