文献类型：期刊文献

英文题名：Impacts of mixed litter on the structure and functional pathway of microbial community in litter decomposition

作者：Wang, Wenbo[1,2] Chen, Dongsheng[1,2] Sun, Xiaomei[1,2] Zhang, Qian[2] Koide, Roger T.[3] Insam, Heribert[4] Zhang, Shougong[1,2]

第一作者：Wang, Wenbo

通信作者：Zhang, SG[1]

机构：[1]Chinese Acad Forestry, State Key Lab Tree Genet & Breeding, Beijing 100091, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forestry, 1 Dongxiaofu,Xiangshan Rd, Beijing 100091, Peoples R China;[3]Brigham Young Univ, Dept Biol, Provo, UT 84602 USA;[4]Univ Innsbruck, Inst Microbiol, Tech Str 25d, A-6020 Innsbruck, Austria

年份：2019

卷号：144

起止页码：72-82

外文期刊名：APPLIED SOIL ECOLOGY

收录：;Scopus(收录号：2-s2.0-85069550385);WOS:【SCI-EXPANDED(收录号:WOS:000485174500010)】；

基金：This research was funded by Key Program of National Science Foundation of China (Project no. 31430017) and The National Key Research and Development Program of China (Project no. 2017YFD0600401).

语种：英文

外文关键词：Mixed plantation; Litter decomposition; Metagenome; Microbial community; Functional genes

摘要：The addition of broad-leaf trees to conifers has many purposes including reduction of soil acidification, increase in litter turnover and increase in fertility. The purpose of this study was to determine the impact of mixing broad-leaf trees with coniferous trees on the bacterial and fungal communities and functional genes that govern litter decomposition. In larch, sassafras and mixed larch/sassafras plantations, litter samples were collected 60, 150, 270, and 360 days after peak leaf fall. The abundance of the bacterial classes Acidobacteriia and Solibacteres, and their functional genes for carbohydrate and amino acid metabolism, were less abundant in the mixed plantation than in larch plantation. In contrast, the fungal class Dothideomycetes and its functional genes for carbohydrate and amino acid metabolism were more abundant in the mixed plantation compared to the larch plantation. Litter pH and total carbon concentration were major determinants of bacterial and fungal community structure and the abundance of functional genes. Overall, we provide evidence that co-culture of sassafras with larch increased the abundance of potential functional genes of Dothideomycetes responsible for degrading organic matter but reduced those of Acidobacteriia and Solibacteres.