Highly diverse endophytes in roots of Cycas bifida (Cycadaceae), an ancient but endangered gymnosperm

doi:10.1007/s12275-018-7438-3

	Highly diverse endophytes in roots of Cycas bifida (Cycadaceae), an ancient but endangered gymnosperm
	Zheng, Ying 1,2,3; Chiang, Tzen-Yuh 4; Huang, Chao-Li 4; Gong, Xun1,2
	2018-05-01
发表期刊	JOURNAL OF MICROBIOLOGY
ISSN	1225-8873
卷号	56 期号:5 页码:337-345
摘要	As an ancient seed plant, cycads are one of the few gymnosperms that develop a root symbiosis with cyanobacteria, which has allowed cycads to cope with harsh geologic and climatic conditions during the evolutionary process. However, the endophytic microbes in cycad roots remain poorly identified. In this study, using next-generation sequencing techniques, we investigated the microbial diversity and composition of both the coralloid and regular roots of Cycas bifida (Dyer) K.D. Hill. Highly diverse endophytic communities were observed in both the coralloid and regular roots. Of the associated bacteria, the top five families were the Nostocaceae, Sinobacteraceae, Bradyrhizobiaceae, Bacillaceae, and Hyphomicrobiaceae. The Nectriaceae, Trichocomaceae, and Incertae sedis were the predominant fungal families in all root samples. A significant difference in the endophytic bacterial community was detected between coralloid roots and regular roots, but no difference was observed between the fungal communities in the two root types. Cyanobacteria were more dominant in coralloid roots than in regular roots. The divergence of cycad root structures and the modified physiological processes may have contributed to the abundance of cyanobionts in coralloid roots. Consequently, the colonization of cyanobacteria inhibits the assemblage of other endophytes. Our results contribute to an understanding of the species diversity and composition of the cycad-endophyte microbiome and provide an abbreviated list of potential ecological roles of the core microbes present.
关键词	Coralloid Root Cyanobacteria Cycas Diversity Endophyte Next-generation Sequencing Technique
DOI	10.1007/s12275-018-7438-3
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/61249
专题	资源植物与生物技术所级重点实验室
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China 2.Chinese Acad Sci, Kunming Inst Bot, Key Lab Econ Plants & Biotechnol, Kunming 650201, Yunnan, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Natl Cheng Kung Univ, Dept Life Sci, Tainan 701, Taiwan
推荐引用方式 GB/T 7714	Zheng, Ying,Chiang, Tzen-Yuh,Huang, Chao-Li,et al. Highly diverse endophytes in roots of Cycas bifida (Cycadaceae), an ancient but endangered gymnosperm[J]. JOURNAL OF MICROBIOLOGY,2018,56(5):337-345.
APA	Zheng, Ying,Chiang, Tzen-Yuh,Huang, Chao-Li,&Gong, Xun.(2018).Highly diverse endophytes in roots of Cycas bifida (Cycadaceae), an ancient but endangered gymnosperm.JOURNAL OF MICROBIOLOGY,56(5),337-345.
MLA	Zheng, Ying,et al."Highly diverse endophytes in roots of Cycas bifida (Cycadaceae), an ancient but endangered gymnosperm".JOURNAL OF MICROBIOLOGY 56.5(2018):337-345.

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