Phyllosphere fungal communities of rubber trees exhibited biogeographical patterns, but not bacteria
文献类型： 外文期刊
作者： Wei, Yaqing 1 ; Lan, Guoyu 2 ; Wu, Zhixiang 2 ; Chen, Bangqian 2 ; Quan, Fei 2 ; Li, Mingmei 2 ; Sun, Shuqing 2 ; Du, Haonan 2 ;
作者机构： 1.Hainan Univ, Coll Ecol & Environm, Haikou 570228, Hainan, Peoples R China
2.Chinese Acad Trop Agr Sci, Rubber Res Inst, Xueyuan Rd, Haikou 571737, Hainan, Peoples R China
3.Hainan Danzhou Trop Agroecosyst Natl Observat & R, Danzhou 571737, Hainan, Peoples R China
期刊名称：ENVIRONMENTAL MICROBIOLOGY （ 影响因子：5.476； 五年影响因子：6.82 ）
ISSN： 1462-2912
年卷期：
页码：
收录情况： SCI
摘要： Phyllosphere microbiomes play an essential role in maintaining host health and productivity. Still, the diversity patterns and the drivers for the phyllosphere microbial community of the tropical cash crop Rubber tree (Hevea brasiliensis) - are poorly understood. We sampled the phyllosphere of field-grown rubber trees in South China. We examined the phyllosphere bacterial and fungal composition, diversity and main drivers of these microbes using the Illumina (R) sequencing and assembly. Fungal communities were distinctly different in different climatic regions (i.e. Xishuangbanna and Hainan Island) and climatic factors, especially mean annual temperature, and they were the main driving factors of foliar fungal communities, indicating fungal communities showed a geographical pattern. Significant differences of phyllosphere bacterial communities were detected in different habitats (i.e. endophytic and epiphytic). Most of the differences in taxa composition came from Firmicutes spp., which have been assigned as nitrogen-fixing bacteria. Since these bacteria cannot penetrate the cuticle like fungi, the abundant epiphytic Firmicutes spp. may supplement the deficiency of nitrogen acquisition. And the main factor influencing endophytic bacteria were internal factors, such as total nitrogen, total phosphorus and water content of leaves. External factors (i.e. climate) were the main driving force for epiphytic bacteria community assembly. Our work provides empirical evidence that the assembly of phyllosphere bacterial and fungal differed, which creates a precedent for preventing and controlling rubber tree diseases and pests and rubber tree yield improvement.
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