文献类型：期刊文献

英文题名：Tissue Microbiome of Norway Spruce Affected by Heterobasidion-Induced Wood Decay

作者：Ren, Fei[1,2] Kovalchuk, Andriy[1] Mukrimin, Mukrimin[1,3] Liu, Mengxia[1] Zeng, Zhen[1] Ghimire, Rajendra P.[4] Kivimaenpaa, Minna[4] Holopainen, Jarmo K.[4] Sun, Hui[5] Asiegbu, Fred O.[1]

第一作者：任菲;Ren, Fei

通信作者：Asiegbu, FO[1];Sun, H[2]

机构：[1]Univ Helsinki, Dept Forest Sci, Fac Agr & Forestry, POB 27, FIN-00014 Helsinki, Finland;[2]Chinese Acad Forestry, Forestry Expt Ctr North China, Beijing 102300, Peoples R China;[3]Univ Hasanuddin, Dept Forestry, Jln Perintis Kemerdekaan Km 10, Makassar 90245, Indonesia;[4]Univ Eastern Finland, Dept Environm & Biol Sci, POB 1627, FIN-70211 Kuopio, Finland;[5]Nanjing Forestry Univ, Coll Forestry, Collaborat Innovat Ctr Sustainable Forestry South, Nanjing, Jiangsu, Peoples R China

年份：2019

卷号：77

期号：3

起止页码：640-650

外文期刊名：MICROBIAL ECOLOGY

收录：;Scopus(收录号：2-s2.0-85052585610);WOS:【SCI-EXPANDED(收录号:WOS:000464747100008)】；

基金：The authors wish to acknowledge CSC-IT Center for Science, Finland, for the generous computational resources and UEF International Top Level Research Area (BORFOR) for the post-doc funding. The China Scholarship Council is also acknowledged. The research funding for Jiangsu Specially Appointed Professor (project 165010015) and Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) are also acknowledged. This research received financial support from the Academy of Finland (No. 276862 to FOA; No. 278424 to JKH). We thank Dr. Risto Kasanen for help with field sampling.

语种：英文

外文关键词：Bacterial biota; Microbiome; Microbial community; Norway spruce; Heterobasidion; Host-microbe interactions; Terpenoids

摘要：Plants live in close association with microbial symbionts, which may affect the host fitness, productivity, and tolerance against biotic and abiotic stressors. The composition of plant microbial communities is influenced by many biotic and abiotic factors, but little is known about the effect of plant pathogens on the structure of these communities. In this study, we investigated the structure of bacterial communities associated with different tissues of asymptomatic and symptomatic (Heterobasidion-rotten) Norway spruce (Picea abies (L.) Karst.) trees. Our results demonstrated that each of the investigated anatomic tissues (root, bark, down stem, upper stem, and needles) harbored a unique bacterial assemblage. However, the health status of the host trees had little effect on the structure of bacterial communities, as the only significant differences among asymptomatic and symptomatic trees were found in the composition of the bacterial communities of needles. Proteobacteria was predominant in all anatomic regions with the highest abundance in needles (86.7%), whereas Actinobacteria showed an opposite trend, being more abundant in the woody tissues than in needles. Additionally, we performed profiling of terpenoid compounds present in spruce xylem and phloem. Total concentrations of monoterpenes and sesquiterpenes were considerably higher in asymptomatic trees. However, we found no significant correlations between terpenoid profiles of spruce trees and the composition of their bacterial communities. Our results provide an insight into the diversity of bacteria associated with Norway spruce tree tissues. At the same time, the health status and terpenoid content of host trees had a limited effect on the composition of bacterial communities in our survey.