文献类型： 外文期刊

作者： Pan, Yanshuo ¹ ; Liu, Binhui ⁵ ; Zhang, Wenying ⁵ ; Zhuang, Shan ³ ; Wang, Hongzhe ³ ; Chen, Jieyin ⁶ ; Xiao, Liang ⁸ ; Li, Yuzhong ³ ; Han, Dongfei ¹ ;

作者机构： 1.Suzhou Univ Sci & Technol, Sch Environm Sci & Engn, Suzhou, Peoples R China

2.State Key Lab Efficient Utilizat Arid & Semiarid A, Beijing, Peoples R China

3.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing, Peoples R China

4.Northwest A&F Univ, Coll Nat Resources & Environm, Xianyang, Peoples R China

5.Hebei Acad Agr & Forestry Sci, Inst Dryland Farming, Key Lab Crop Drought Resistance Res Hebei Prov, Hengshui, Peoples R China

6.Chinese Acad Agr Sci, State Key Lab Biol Plant Dis & Insect Pests, Inst Plant Protect, Beijing, Peoples R China

7.Chinese Acad Agr Sci, Western Agr Res Ctr, Changji, Peoples R China

8.BGI Shenzhen, Shenzhen, Peoples R China

9.Univ Chinese Acad Sci, Coll Life Sci, Beijing, Peoples R China

10.BGI Shenzhen, Qingdao Europe Adv Inst Life Sci, Qingdao, Peoples R China

11.BGI Shenzhen, China Natl Genebank, Shenzhen, Peoples R China

12.BGI Shenzhen, Shenzhen Engn Lab Detect & Intervent human intesti, Shenzhen, Peoples R China

13.Zhengzhou Univ, BGI Coll, Zhengzhou, Peoples R China

14.Zhengzhou Univ, Henan Inst Med & Pharmaceut Sci, Zhengzhou, Peoples R China

关键词： drought; wheat; fungal community assembly; generalists; specialists

期刊名称：MSYSTEMS （ 影响因子：6.4； 五年影响因子：7.3 ）

ISSN： 2379-5077

年卷期： 2024 年

页码：

收录情况： SCI

摘要： Beneficial interactions between plants and rhizosphere fungi can enhance plant adaptability during drought stress. However, harnessing these interactions will require an in-depth understanding of the response of fungal community assembly to drought. Herein, by using different varieties of wheat plants, we analyzed the drought-induced changes in fungal community assembly in rhizosphere and bulk soil. We demonstrated that drought significantly altered the fungal communities, with the contribution of species richness to community beta diversity increased in both rhizosphere and bulk soil compartments during drought stress. The stochastic processes dominated fungal community assembly, but the relative importance of deterministic processes, mainly homogeneous selection, increased in the drought-stressed rhizosphere. Drought induced an increase in the relative abundance of generalists in the rhizosphere, as opposed to specialists, and the top 10 abundant taxa that enriched under drought conditions were predominantly generalists. Notably, the most abundant drought-enriched taxon in rhizosphere was a generalist, and the corresponding Chaetomium strain was found capable of improving root length and activating ABA signaling in wheat plants through culture-based experiment. Together, these findings provide evidence that host plants exert a strong influence on rhizospheric fungal community assembly during stress and suggest the fungal communities that have experienced drought have the potential to confer fitness advantages to the host plants.IMPORTANCE We have presented a framework to integrate the shifts in community assembly processes with plant-soil feedback during drought stress. We found that environmental filtering and host plant selection exert influence on the rhizospheric fungal community assembly, and the re-assembled community has great potential to alleviate plant drought stress. Our study proposes that future research should incorporate ecology with plant, microbiome, and molecular approaches to effectively harness the rhizospheric microbiome for enhancing the resilience of crop production to drought. We have presented a framework to integrate the shifts in community assembly processes with plant-soil feedback during drought stress. We found that environmental filtering and host plant selection exert influence on the rhizospheric fungal community assembly, and the re-assembled community has great potential to alleviate plant drought stress. Our study proposes that future research should incorporate ecology with plant, microbiome, and molecular approaches to effectively harness the rhizospheric microbiome for enhancing the resilience of crop production to drought.