亲爱的研友该休息了!由于当前在线用户较少,发布求助请尽量完整地填写文献信息,科研通机器人24小时在线,伴您度过漫漫科研夜!身体可是革命的本钱,早点休息,好梦!

Change in composition and potential functional genes of soil bacterial and fungal communities with secondary succession in Quercus liaotungensis forests of the Loess Plateau, western China

微生物种群生物学 表土 生态演替 原生演替 次生演替 土壤微生物学 植被(病理学) 营养循环 生态系统 生态学 植物 生物 土壤水分 细菌 医学 病理 遗传学
作者
Benshuai Yan,Lipeng Sun,Jingjing Li,Caiqun Liang,Furong Wei,Sha Xue,Guoliang Wang
出处
期刊:Geoderma [Elsevier BV]
卷期号:364: 114199-114199 被引量:89
标识
DOI:10.1016/j.geoderma.2020.114199
摘要

Vegetation succession is one of the most important factors driving changes in microorganisms. It is unclear, however, how the microbial composition and the potential function of C and N cycling change with forest secondary succession. Using soil metagenomic sequencing methods, we studied these changes in bacterial and fungal communities with secondary succession from cropland to a Quercus liaotungensis forest over approximately 120 years on the Loess Plateau of China. The results revealed the following. (1) Soil microbial biomass C, N, and P increased significantly in topsoil (0–20 cm) with vegetation succession. (2) The abundances of bacteria increased initially and then decreased slightly, whereas an increase in fungal abundances and the ratio of fungi to bacteria was detected along a successional gradient. Microbial communities tended to shift from r- to K-strategists, both at the phylum and genus levels. (3) With vegetation succession, the abundances of C and N cycle-related potential functional genes first significantly increased and then stabilized. Among them, the relative abundances of recalcitrant C degradation-, N fixation-, and ammonification-related genes increased, whereas labile C degradation-, N reduction-, and denitrification-related genes tended to decrease. (4) Redundancy analysis indicated that bacterial communities were influenced by available phosphorus contents and soil C: N ratios, and that fungal communities were mainly affected by ammonium N contents and root biomass. (5) Predicted microbial functional genes were affected by ammonium N and activated C contents. Our study showed that with vegetation succession, microbe communities tended to shift from r- to K-strategists both at the phylum and genus levels, which increased the abundance of organisms expressing C- and N-cycle related genes.
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
PDF的下载单位、IP信息已删除 (2025-6-4)

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
Lucas应助科研通管家采纳,获得10
3秒前
科研通AI2S应助科研通管家采纳,获得10
3秒前
tree完成签到,获得积分20
4秒前
辉辉完成签到,获得积分10
43秒前
wodetaiyangLLL完成签到 ,获得积分10
59秒前
黑白完成签到 ,获得积分10
3分钟前
3分钟前
Qian完成签到 ,获得积分10
3分钟前
情怀应助Ying采纳,获得20
4分钟前
4分钟前
4分钟前
科研通AI5应助忧虑的安青采纳,获得10
4分钟前
juejue333完成签到,获得积分10
4分钟前
4分钟前
4分钟前
Ying发布了新的文献求助20
4分钟前
5分钟前
Betty发布了新的文献求助10
5分钟前
Betty完成签到,获得积分10
5分钟前
科目三应助科研通管家采纳,获得10
6分钟前
科研通AI2S应助科研通管家采纳,获得10
6分钟前
SciGPT应助科研通管家采纳,获得10
6分钟前
笨笨完成签到,获得积分10
6分钟前
6分钟前
6分钟前
思源应助嘿嘿嘿侦探社采纳,获得10
6分钟前
6分钟前
6分钟前
7分钟前
gyh发布了新的文献求助10
7分钟前
孤独的涵柳完成签到 ,获得积分10
7分钟前
7分钟前
gyh完成签到,获得积分20
7分钟前
7分钟前
科研通AI2S应助科研通管家采纳,获得30
8分钟前
Owen应助科研通管家采纳,获得10
8分钟前
科研通AI2S应助科研通管家采纳,获得10
8分钟前
8分钟前
8分钟前
8分钟前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Cognitive Neuroscience: The Biology of the Mind 1000
Technical Brochure TB 814: LPIT applications in HV gas insulated switchgear 1000
Immigrant Incorporation in East Asian Democracies 600
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
A Preliminary Study on Correlation Between Independent Components of Facial Thermal Images and Subjective Assessment of Chronic Stress 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 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 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3968504
求助须知:如何正确求助?哪些是违规求助? 3513278
关于积分的说明 11167234
捐赠科研通 3248660
什么是DOI,文献DOI怎么找? 1794386
邀请新用户注册赠送积分活动 875030
科研通“疑难数据库(出版商)”最低求助积分说明 804638