您好，欢迎访问中国农业科学院 机构知识库！

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Non-linear and contrasting responses of abundant, intermediate and rare prokaryotic phylotypes to environmental gradients in forests of East China

文献类型： 外文期刊

作者： Wang, Guangxin 1 ; Zhang, Shuhan 2 ; Hua, Bin 2 ; Mao, Rong 4 ; Zhang, Yang 4 ; Goncharov, Anton A. 5 ; Zhang, Ximei 2 ; Han, Xingguo 1 ; Yang, Wei 2 ;

作者机构： 1.Hebei Univ, Sch Life Sci, Inst Life Sci & Green Dev, Baoding 071002, Hebei, Peoples R China

2.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Minist Agr, Key Lab Dryland Agr, Beijing 100081, Peoples R China

3.Henan Agr Univ, Coll Forestry, Zhengzhou 450002, Peoples R China

4.Jiangxi Agr Univ, Coll Forestry, 1101 Zhimin Rd, Nanchang 330045, Peoples R China

5.Russian Acad Sci, Severtsov Inst Ecol & Evolut, Leninsky Prospect 33, Moscow 119071, Russia

关键词： Forest; Abundant phylotype; Environmental threshold

期刊名称：APPLIED SOIL ECOLOGY （ 影响因子：5.0； 五年影响因子：5.4 ）

ISSN： 0929-1393

年卷期： 2025 年 215 卷

页码：

收录情况： SCI

摘要： Forest ecosystems are facing challenges from the effects of global climate change, greatly threatening their ecosystem function. Soil prokaryotic community, consisted of a few abundant prokaryotes and a large number of rare prokaryotes, are proven to be critical in soil nutrient cycling. However, how they respond to environmental gradients, and whether these responses are non-linear is unknown. To address this issue, we collected 28 soil samples from forest ecosystems in Eastern China and examined their prokaryotic community using 16S rRNA amplicon sequencing. Totally, 120 abundant phylotypes were identified, which occupied only 0.06 % of the total ASV number but 27.14 % of the total sequence reads across all samples. Regression analysis and random forest analysis revealed that abundant phylotype significantly contributed to soil nutrient availability. The richness of abundant and intermediate phylotypes increased with the increasing pH before the threshold, while it decreased after the threshold. However, it is note worthing that the richness of rare phylotypes consistently increased with increasing pH before and after threshold. When examining the mean annual temperature threshold, the richness of abundant, intermediate and rare phylotypes all sharply decreased after the threshold, with higher thresholds for abundant phylotype (18.51 degrees C) and intermediate (18.47 degrees C) than rare phylotype (16.70 degrees C). TITAN analysis revealed that soil pH and aridity thresholds of abundant prokaryotic community were narrower than intermediate and rare prokaryotic communities, indicating the more sensitive responses of abundant phylotype along pH and aridity gradients. Overall, our findings confirmed the crucial roles of abundant phylotype in forest soil nutrient cycling, and highlighted the non-linear and contrasting responses of abundant, intermediate, and rare phylotypes to environmental gradients, which can be used for building effective strategies to maintain soil nutrient cycling with the ongoing global climate change.

  • 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：中国农业科学院

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