您好，欢迎访问黑龙江省农业科学院 机构知识库！
黑龙江省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Rhizosphere bacterial communities of three minor grain crops exhibit distinct environmental adaptations and assembly processes

文献类型： 外文期刊

作者： Tian, Lixin 1 ; Zhang, Feifei 1 ; Chen, Pengliang 1 ; Zhang, Panpan 2 ; Gao, Zhijun 3 ; Dong, Yang 4 ; Yan, Feng 4 ; Yang, Pu 1 ; Gao, Xiaoli 1 ; Feng, Baili 1 ;

作者机构： 1.Northwest A&F Univ, State Key Lab Crop Stress Biol Arid Areas, Shaanxi Res Stn Crop Gene Resources & Germplasm E, Coll Agron,Minist Agr, Yangling 712100, Shaanxi, Peoples R China

2.Yulin Univ, Coll Life Sci, Yulin, Peoples R China

3.Inner Mongolia Erdos Inst Agr & Anim Husb, Erdos, Peoples R China

4.Heilongjiang Acad Agr Sci, Qiqihar Branch, Qiqihar, Peoples R China

关键词： biogeographic patterns; community assembly; environmental breadth; minor grain crops; phylogenetic signal; rhizosphere bacteria

期刊名称：EUROPEAN JOURNAL OF SOIL SCIENCE （ 影响因子：4.178； 五年影响因子：4.883 ）

ISSN： 1351-0754

年卷期： 2022 年 73 卷 6 期

页码：

收录情况： SCI

摘要： Deciphering responses of bacterial communities to environmental change, and understanding how communities assemble in response to environmental change, are important subjects. The assembly processes governing the rhizosphere bacterial communities of minor grain crops are rarely explored based on regional scales, especially in terms of the environmental adaptation. Here, we investigated the environmental thresholds and phylogenetic signals for ecological preferences of rhizosphere bacterial communities of three minor grain crop taxa across complex environmental gradients to reflect their environmental adaptation. Additionally, we reported environmental factors affecting their community assembly processes based on a large-scale soil survey in agricultural fields across northern China using high-throughput sequencing. The results demonstrated a narrower range of environmental thresholds and weaker phylogenetic signals for the ecological traits of rhizosphere bacteria in proso millet than in foxtail millet and sorghum fields. The proso millet rhizosphere community was the most phylogenetically clustered. Null model analysis indicated that homogeneous selection belonging to deterministic processes governed the sorghum rhizosphere community, whereas dispersal limitation belonging to stochastic processes was the critical assembly process in the foxtail millet and proso millet. Mean annual temperature was the decisive factor for adjusting the balance between stochasticity and determinism of the foxtail millet, proso millet and sorghum rhizosphere communities. A higher temperature resulted in stochasticity in the proso millet and sorghum communities. For the foxtail millet community, the deterministic assembly increased with an increase in temperature. These results contribute to the understanding of rhizosphere-associated bacterial community assembly processes in agro-ecosystems on a large scale. Highlights Proso millet rhizosphere bacterial taxa exhibited weaker environmental adaptation than foxtail millet and sorghum taxa. Determinism governed the sorghum rhizosphere community, whereas stochasticity was the critical assembly process in the foxtail and proso millet. Mean annual temperature mediated balance between stochastic and deterministic processes.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：黑龙江省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台