干旱区生态环境知识资源中心(Arid): Gut bacteria of weevils developing on plant roots under extreme desert conditions

Arid

DOI	10.1186/s12866-019-1690-5
	Gut bacteria of weevils developing on plant roots under extreme desert conditions
	Meng, Fengqun 1; Bar-Shmuel, Nitsan 1; Shavit, Reut 2; Behar, Adi 3; Segoli, Michal 1
通讯作者	Meng, Fengqun
来源期刊	BMC MICROBIOLOGY
ISSN	1471-2180
出版年	2019
卷号	19 期号:1
英文摘要	Background: Many phytophagous insects, whose diet is generally nitrogen-poor, rely on gut bacteria to compensate for nutritional deficits. Accordingly, we hypothesized that insects in desert environments may evolve associations with gut bacteria to adapt to the extremely low nutrient availability. For this, we conducted a systematic survey of bacterial communities in the guts of weevils developing inside mud chambers affixed to plant roots in the Negev Desert of Israel, based on 16S rRNA gene amplicon sequencing. Results: Our analyses revealed that gut bacterial communities in weevil larvae were similar across a wide geographical range, but differed significantly from those of the mud chambers and of the surrounding soils. Nevertheless, a high proportion of bacteria (including all of the core bacteria) found in the weevils were also detected in the mud chambers and soils at low relative abundances. The genus Citrobacter (of the Enterobacteriaceae family) was the predominant group in the guts of all individual weevils. The relative abundance of Citrobacter significantly decreased at the pupal and adult stages, while bacterial diversity increased. A mini literature survey revealed that members of the genus Citrobacter are associated with nitrogen fixation, recycling of uric acid nitrogen, and cellulose degradation in different insects. Conclusions: The results suggest that although weevils could potentially acquire their gut bacteria from the soil, weevil host internal factors, rather than external environmental factors, were more important in shaping their gut bacterial communities, and suggest a major role for Citrobacter in weevil nutrition in this challenging environment. This study highlights the potential involvement of gut bacteria in the adaptation of insects to nutritional deficiencies under extreme desert conditions.
英文关键词	Desert ecosystem Symbiont Beetle Weevil Nutrient Citrobacter
类型	Article
语种	英语
国家	Israel
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000509698800005
WOS关键词	LOCUST SCHISTOCERCA-GREGARIA ; NITROGEN-FIXATION ; DENDROCTONUS-RHIZOPHAGUS ; PINE WEEVIL ; COMMUNITY ; COLEOPTERA ; MICROBIOTA ; SYMBIONT ; CURCULIONIDAE ; DIVERSITY
WOS类目	Microbiology
WOS研究方向	Microbiology
EI主题词	2019-12-30
来源机构	Ben-Gurion University of the Negev
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311954
作者单位	1.Ben Gurion Univ Negev, Jacob Blaustein Inst Desert Res, Swiss Inst Dryland Environm & Energy Res, Mitrani Dept Desert Ecol, Midreshet Ben Gurion, Israel; 2.Ben Gurion Univ Negev, Jacob Blaustein Inst Desert Res, French Associates Inst Agr & Biotechnol Drylands, Midreshet Ben Gurion, Israel; 3.Kimron Vet Inst, Div Parasitol, Bet Dagan, Israel
推荐引用方式 GB/T 7714	Meng, Fengqun,Bar-Shmuel, Nitsan,Shavit, Reut,et al. Gut bacteria of weevils developing on plant roots under extreme desert conditions[J]. Ben-Gurion University of the Negev,2019,19(1).
APA	Meng, Fengqun,Bar-Shmuel, Nitsan,Shavit, Reut,Behar, Adi,&Segoli, Michal.(2019).Gut bacteria of weevils developing on plant roots under extreme desert conditions.BMC MICROBIOLOGY,19(1).
MLA	Meng, Fengqun,et al."Gut bacteria of weevils developing on plant roots under extreme desert conditions".BMC MICROBIOLOGY 19.1(2019).