Nitrogen starvation modulates the sensitivity of rhizobacterial community to drought stress in Stevia rebaudiana

根际 放线菌门 生物 甜叶菊 根际细菌 蛋白质细菌 拟杆菌 厚壁菌 芽单胞菌门 植物 微生物种群生物学 生态学 细菌 园艺 16S核糖体RNA 遗传学
作者
Yuming Sun,Junjie Guo,Luis A. J. Mur,Xiaoyang Xu,Hao Chen,Yongheng Yang,Haiyan Yuan
出处
期刊:Journal of Environmental Management [Elsevier]
卷期号:354: 120486-120486
标识
DOI:10.1016/j.jenvman.2024.120486
摘要

Alterations in water regimes or nitrogen (N) availability lead to shifts in the assemblage of rhizosphere microbial community; however, how the rhizosphere microbiome response to concurrent changes in water and N availability remains largely unclear. Herein, we investigated the taxonomic and functional characteristics of rhizobacteria associated with stevia (Stevia rebaudiana Bertoni) under varying combinations of water and N levels. Community diversity and predicted functions of rhizobacteria were predominantly altered by drought stress, with N-starvation modulating these effects. Moreover, N fertilization simplified the ecological interactions within rhizobacterial communities and heightened the relative role of stochastic processes on community assembly. In terms of rhizobacterial composition, we observed both common and distinctive changes in drought-responsive bacterial taxa under different N conditions. Generally, the relative abundance of Proteobacteria and Bacteroidetes phyla were depleted by drought stress but the Actinobacteria phylum showed increases. The rhizobacterial responses to drought stress were influenced by N availability, where the positive response of δ-proteobacteria and the negative response of α- and γ-proteobacteria, along with Bacteroidetes, were further heightened under N starvation. By contrast, under N fertilization conditions, an amplified negative or positive response to drought were demonstrated in Firmicutes and Actinobacteria phyla, respectively. Further, the drought-responsive rhizobacteria were mostly phylogenetically similar, but this pattern was modulated under N-rich conditions. Overall, our findings indicate an N-dependent specific restructuring of rhizosphere bacteria under drought stress. These changes in the rhizosphere microbiome could contribute to enhancing plant stress tolerance.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
大幅提高文件上传限制,最高150M (2024-4-1)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
阔达可乐完成签到,获得积分10
刚刚
刚刚
2秒前
3秒前
Ternura发布了新的文献求助20
3秒前
saying发布了新的文献求助10
3秒前
隐形山兰发布了新的文献求助10
5秒前
劲秉应助芊慧采纳,获得30
6秒前
6秒前
沿途东行完成签到 ,获得积分10
6秒前
jxp完成签到,获得积分10
6秒前
yannchen关注了科研通微信公众号
8秒前
金金金发布了新的文献求助10
12秒前
丘比特应助平常映梦采纳,获得10
12秒前
xiaojiang完成签到,获得积分10
13秒前
14秒前
Candice应助花生采纳,获得10
15秒前
17秒前
大模型应助啦啦采纳,获得10
18秒前
儒雅沛凝发布了新的文献求助10
19秒前
自由雨莲发布了新的文献求助10
20秒前
20秒前
20秒前
和谐静竹发布了新的文献求助20
20秒前
情怀应助220044采纳,获得10
21秒前
monica发布了新的文献求助30
22秒前
阔达可乐发布了新的文献求助500
24秒前
全圆佑的猫猫完成签到,获得积分10
25秒前
jinshiyu58发布了新的文献求助10
26秒前
xxh发布了新的文献求助10
27秒前
30秒前
胡明月发布了新的文献求助10
31秒前
cc完成签到,获得积分10
31秒前
标致凡白发布了新的文献求助10
31秒前
32秒前
32秒前
浅尝离白举报cardiomyocytes求助涉嫌违规
32秒前
Ava应助稻草人采纳,获得10
32秒前
33秒前
乐观夜蕾发布了新的文献求助10
34秒前
高分求助中
Solution Manual for Strategic Compensation A Human Resource Management Approach 1200
Natural History of Mantodea 螳螂的自然史 1000
Glucuronolactone Market Outlook Report: Industry Size, Competition, Trends and Growth Opportunities by Region, YoY Forecasts from 2024 to 2031 800
A Photographic Guide to Mantis of China 常见螳螂野外识别手册 800
Zeitschrift für Orient-Archäologie 500
Smith-Purcell Radiation 500
Autoregulatory progressive resistance exercise: linear versus a velocity-based flexible model 500
热门求助领域 (近24小时)
化学 医学 生物 材料科学 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 基因 遗传学 物理化学 催化作用 细胞生物学 免疫学 冶金
热门帖子
关注 科研通微信公众号,转发送积分 3343658
求助须知:如何正确求助?哪些是违规求助? 2970701
关于积分的说明 8644814
捐赠科研通 2650771
什么是DOI,文献DOI怎么找? 1451444
科研通“疑难数据库(出版商)”最低求助积分说明 672145
邀请新用户注册赠送积分活动 661569