Differential effects of abiotic factors and host plant traits on diversity and community composition of root-colonizing arbuscular mycorrhizal fungi in a salt-stressed ecosystem
文献类型：期刊论文
| 作者 | Guo, Xiaohong; Gong, Jun
|
| 刊名 | MYCORRHIZA
 |
| 出版日期 | 2014-02-01 |
| 卷号 | 24期号:2页码:79-94 |
| 关键词 | AM fungi Community structure Environmental variables Plant traits Salt tolerance SSU rDNA |
| ISSN号 | 0940-6360 |
| 产权排序 | [Guo, Xiaohong; Gong, Jun] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Microbial Ecol Lab, Yantai 264003, Peoples R China |
| 通讯作者 | Gong, J (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Microbial Ecol Lab, Yantai 264003, Peoples R China. jgong@yic.ac.cn |
| 中文摘要 | Arbuscular mycorrhizal fungi (AMF) were investigated in roots of 18 host plant species in a salinized south coastal plain of Laizhou Bay, China. From 18 clone libraries of 18S rRNA genes, all of the 22 AMF phylotypes were identified into Glomus, of which 18 and 4 were classified in group A and B in the phylogenetic tree, respectively. The phylotypes related to morphologically defined Glomus species occurred generally in soil with higher salinity. AMF phylotype richness, Shannon index, and evenness were not significantly different between root samples from halophytes vs. non-halophytes, invades vs. natives, or annuals vs. perennials. However, AMF diversity estimates frequently differed along the saline gradient or among locations, but not among pH gradients. Moreover, UniFrac tests showed that both plant traits (salt tolerance, life style or origin) and abiotic factors (salinity, pH, or location) significantly affected the community composition of AMF colonizers. Redundancy and variation partitioning analyses revealed that soil salinity and pH, which respectively explained 6.9 and 4.2 % of the variation, were the most influential abiotic variables in shaping the AMF community structure. The presented data indicate that salt tolerance, life style, and origin traits of host species may not significantly affect the AMF diversity in roots, but do influence the community composition in this salinized ecosystem. The findings also highlight the importance of soil salinity and pH in driving the distribution of AMF in plant and soil systems. |
| 英文摘要 | Arbuscular mycorrhizal fungi (AMF) were investigated in roots of 18 host plant species in a salinized south coastal plain of Laizhou Bay, China. From 18 clone libraries of 18S rRNA genes, all of the 22 AMF phylotypes were identified into Glomus, of which 18 and 4 were classified in group A and B in the phylogenetic tree, respectively. The phylotypes related to morphologically defined Glomus species occurred generally in soil with higher salinity. AMF phylotype richness, Shannon index, and evenness were not significantly different between root samples from halophytes vs. non-halophytes, invades vs. natives, or annuals vs. perennials. However, AMF diversity estimates frequently differed along the saline gradient or among locations, but not among pH gradients. Moreover, UniFrac tests showed that both plant traits (salt tolerance, life style or origin) and abiotic factors (salinity, pH, or location) significantly affected the community composition of AMF colonizers. Redundancy and variation partitioning analyses revealed that soil salinity and pH, which respectively explained 6.9 and 4.2 % of the variation, were the most influential abiotic variables in shaping the AMF community structure. The presented data indicate that salt tolerance, life style, and origin traits of host species may not significantly affect the AMF diversity in roots, but do influence the community composition in this salinized ecosystem. The findings also highlight the importance of soil salinity and pH in driving the distribution of AMF in plant and soil systems. |
| 学科主题 | Mycology |
| 研究领域[WOS] | Mycology |
| 关键词[WOS] | GRADIENT GEL-ELECTROPHORESIS ; COASTAL SAND DUNES ; UNDISTURBED VEGETATION ; DISTRIBUTION PATTERNS ; AMMOPHILA-ARENARIA ; SOUTHWEST CHINA ; AMF DIVERSITY ; GYPSUM SOILS ; GRASSLAND ; AREA |
| 收录类别 | SCI |
| 资助信息 | Main Direction Program of Knowledge Innovation of CAS [KSCX2-EW-G-12B]; One Hundred Talent Program of CAS; Natural Science Foundation for Distinguished Young Scholars of Shandong [JQ201210]; Yantai Double Hundred Talent Plan |
| 原文出处 | http://dx.doi.org/10.1007/s00572-013-0516-9 |
| 语种 | 英语 |
| WOS记录号 | WOS:000330627800001 |
| 公开日期 | 2014-07-08 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/7018]  |
| 专题 | 烟台海岸带研究所_海岸带生物学与生物资源利用所重点实验室 |
| 作者单位 | Chinese Acad Sci, Yantai Inst Coastal Zone Res, Microbial Ecol Lab, Yantai 264003, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Xiaohong,Gong, Jun. Differential effects of abiotic factors and host plant traits on diversity and community composition of root-colonizing arbuscular mycorrhizal fungi in a salt-stressed ecosystem[J]. MYCORRHIZA,2014,24(2):79-94. |
| APA | Guo, Xiaohong,&Gong, Jun.(2014).Differential effects of abiotic factors and host plant traits on diversity and community composition of root-colonizing arbuscular mycorrhizal fungi in a salt-stressed ecosystem.MYCORRHIZA,24(2),79-94. |
| MLA | Guo, Xiaohong,et al."Differential effects of abiotic factors and host plant traits on diversity and community composition of root-colonizing arbuscular mycorrhizal fungi in a salt-stressed ecosystem".MYCORRHIZA 24.2(2014):79-94. |
入库方式： OAI收割
来源：烟台海岸带研究所
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