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
mmyhn应助de采纳,获得20
18秒前
23秒前
cacaldon发布了新的文献求助10
27秒前
cacaldon完成签到,获得积分10
35秒前
今后应助Chemmer采纳,获得10
51秒前
量子星尘发布了新的文献求助10
57秒前
1分钟前
科研通AI2S应助科研通管家采纳,获得10
1分钟前
1分钟前
科研通AI2S应助科研通管家采纳,获得10
1分钟前
脑洞疼应助科研通管家采纳,获得10
1分钟前
2分钟前
量子星尘发布了新的文献求助10
2分钟前
2分钟前
2分钟前
mama完成签到 ,获得积分10
2分钟前
2分钟前
2分钟前
3分钟前
3分钟前
3分钟前
CherylZhao完成签到,获得积分10
3分钟前
3分钟前
岁和景明完成签到 ,获得积分10
3分钟前
量子星尘发布了新的文献求助10
3分钟前
3分钟前
3分钟前
4分钟前
poki完成签到 ,获得积分10
4分钟前
4分钟前
4分钟前
Mei应助冷静大米采纳,获得10
5分钟前
5分钟前
量子星尘发布了新的文献求助10
5分钟前
5分钟前
5分钟前
6分钟前
FashionBoy应助oleskarabach采纳,获得10
6分钟前
6分钟前
6分钟前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
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 3976665
求助须知:如何正确求助?哪些是违规求助? 3520770
关于积分的说明 11204801
捐赠科研通 3257528
什么是DOI,文献DOI怎么找? 1798733
邀请新用户注册赠送积分活动 877897
科研通“疑难数据库(出版商)”最低求助积分说明 806629