中国科学院南海海洋研究所机构知识库
Advanced  
SCSIO OpenIR  > 海洋微食物网高被引文献  > 期刊论文
学科主题: Biotechnology & Applied Microbiology; Microbiology
题名: Molecular phylogenetic and biogeochemical studies of sulfate-reducing bacteria in the rhizosphere of Spartina alterniflora
作者: Hines, ME ; Evans, RS ; Genthner, BRS ; Willis, SG ; Friedman, S ; Rooney-Varga, JN ; Devereux, R
刊名: APPLIED AND ENVIRONMENTAL MICROBIOLOGY
发表日期: 1999-01-01
卷: 65, 期:5, 页:2209-2216
部门归属: Univ Alaska, Dept Sci Biol, Anchorage, AK 99508 USA; Univ New Hampshire, Inst Study Earth Oceans & Space, Durham, NH 03824 USA; Univ W Florida, Ctr Environm Diagnost & Bioremediat, Pensacola, FL 32514 USA; US EPA, Natl Hlth & Environm Effects Res Lab, Gulf Breeze, FL 32561 USA
英文摘要: The population composition and biogeochemistry of sulfate-reducing bacteria (SRB) in the rhizosphere of the marsh grass Spartina alterniflora was investigated over two growing seasons by molecular probing, enumerations of culturable SRB, and measurements of SO42- reduction rates and geochemical parameters. SO42- reduction was rapid in marsh sediments with rates up to 3.5 mu mol ml(-1) day(-1). Rates increased greatly when plant growth began in April and decreased again when plants flowered in late July. Results with nucleic acid probes revealed that SRB rRNA accounted for up to 43% of the rRNA from members of the domain Bacteria in marsh sediments, with the highest percentages occurring in bacteria physically associated with root surfaces. The relative abundance (RA) of SRB rRNA in whole-sediment samples compared to that of Bacteria rRNA did not vary greatly throughout the year, despite Targe temporal changes in SO42- reduction activity. However, the RA of root-associated SRB did increase from <10 to >30% when plants were actively growing. rRNA from members of the family Desulfobacteriaceae comprised the majority of the SRB rRNA at 3 to 34% of Bacteria rRNA, with Desulfobulbus spp. accounting for 1 to 16%. The RA of Desulfovibrio rRNA generally comprised from <1 to 3% of the Bacteria rRNA. The highest Desulfobacteriaceae RA in whole sediments was 26% and was found in the deepest sediment samples (6 to 8 cm). Culturable SRB abundance, determined by most-probable-number analyses, was high at >10(7) ml(-1). Ethanol utilizers were most abundant, followed by acetate utilizers. The high numbers of culturable SRB and the high RA of SRB rRNA compared to that of Bacteria rRNA may be due to the release of SRB substrates in plant root exudates, creating a microbial food web that circumvents fermentation.
语种: 英语
原文出处: 查看原文
内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/9340
Appears in Collections:海洋微食物网高被引文献_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Molecular phylogenetic and biogeochemical studies of sulfate-reducing bacteria in the rhizosphere of Spartina alterniflora.pdf(224KB)----开放获取--View Download

Recommended Citation:
Hines, ME; Evans, RS; Genthner, BRS; Willis, SG; Friedman, S; Rooney-Varga, JN; Devereux, R.Molecular phylogenetic and biogeochemical studies of sulfate-reducing bacteria in the rhizosphere of Spartina alterniflora,APPLIED AND ENVIRONMENTAL MICROBIOLOGY,1999,65(5):2209-2216
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Hines, ME]'s Articles
[Evans, RS]'s Articles
[Genthner, BRS]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Hines, ME]‘s Articles
[Evans, RS]‘s Articles
[Genthner, BRS]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: Molecular phylogenetic and biogeochemical studies of sulfate-reducing bacteria in the rhizosphere of Spartina alterniflora.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2018  中国科学院南海海洋研究所 - Feedback
Powered by CSpace