Character variation of root space microbial community composition in the response of drought-tolerant spring wheat to drought stress

Frontiers in Microbiology

Microbiology

Lanfang Bai¹  Jianguo Wang²  Rui Xie²  Yuchen Cheng²  Xiangqian Zhang³  Gongfu Shi⁴  Jie Ma⁵  Yanrong Gao⁵  Jing Fang⁵  Xiaoqing Zhao⁶  Zhanyuan Lu⁶  Shuli Wei⁶  Yongfeng Ren⁶ 

[1] College of Agronomy, Inner Mongolia Agricultural University, Hohhot, China;Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot, China;Key Laboratory of Black Soil Protection and Utilization (Hohhot), Ministry of Agriculture and Rural Affairs, Hohhot, China;Inner Mongolia Key Laboratory of Degradation Farmland Ecological Restoration and Pollution Control, Hohhot, China;Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot, China;Key Laboratory of Black Soil Protection and Utilization (Hohhot), Ministry of Agriculture and Rural Affairs, Hohhot, China;Inner Mongolia Key Laboratory of Degradation Farmland Ecological Restoration and Pollution Control, Hohhot, China;College of Agronomy, Inner Mongolia Agricultural University, Hohhot, China;School of Life Science, Inner Mongolia University, Hohhot, China;School of Life Science, Inner Mongolia University, Hohhot, China;Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot, China;Key Laboratory of Black Soil Protection and Utilization (Hohhot), Ministry of Agriculture and Rural Affairs, Hohhot, China;School of Life Science, Inner Mongolia University, Hohhot, China;Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot, China;Key Laboratory of Black Soil Protection and Utilization (Hohhot), Ministry of Agriculture and Rural Affairs, Hohhot, China;Inner Mongolia Key Laboratory of Degradation Farmland Ecological Restoration and Pollution Control, Hohhot, China;

关键词: drought stress;    spring wheat;    root-space microorganism;    bacterial diversity;    fungal diversity;   

DOI  :  10.3389/fmicb.2023.1235708

 received in 2023-06-06, accepted in 2023-08-31,  发布年份 2023

来源: Frontiers

【 摘 要 】

Drought is the most prevalent environmental stress in crop production, posing a significant danger to food security. Microorganisms in the crop root zone affect crop growth and development, enhance effective nutrient use, and resist adversity hazards. To analyze the changes and functional differences of root space microbial (endosphere-rhizosphere-bulk soil) communities in spring wheat under drought stress. In this study, the root, rhizosphere, and bulk soil of the drought-tolerant group (DTG, three varieties) and drought-sensitive group (DSG, three varieties) were collected. The control (CK, 25–28%), moderate drought (MD, 15–18%), and severe drought (SD, 9–12%) were analyzed by high-throughput sequencing and bioinformatics. The results showed significant differences in the diversity of Bacteria and Fungi in the root space of spring wheat under drought stress (P < 0.05), with the drought-tolerant group exhibiting higher microbial diversity. The microbial community change in spring wheat root space was mainly determined by the niche differentiation of endosphere, rhizosphere, and bulk soil and declined from endosphere to bulk soil due to drought. The antagonism between microbial and root-space species increased, and the community’s complexity and stability deteriorated. Enriching drought-resistant preference groups like Actinobaciota, Variovorax, Streptomyces, and Conocybe altered the structure and function of the microbial community in the root space of spring wheat. Spring wheat’s root space Bacteria and Fungi have different strategies to respond to drought.

【 授权许可】

Unknown   
Copyright © 2023 Fang, Wei, Gao, Zhang, Cheng, Wang, Ma, Shi, Bai, Xie, Zhao, Ren and Lu.