Influence of Temperature on Symbiotic Bacterium Composition in Successive Generations of Egg Parasitoid, Anagrus nilaparvatae

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摘要 Anagrusnilaparvataeisthedominanteggparasitoidofriceplanthoppersandplaysanimportantroleinbiologicalcontrol.Symbioticbacteriacansignificantlyinfluencethedevelopment,survival,reproductionandpopulationdifferentiationoftheirhosts.TostudytheinfluenceoftemperatureonsymbioticbacterialcompositioninthesuccessivegenerationsofA.nilaparvatae,A.nilaparvataewereraisedunderdifferentconstanttemperaturesof22°C,25°C,28°C,31°Cand34°C.Polymerasechainreaction-denaturinggradientgelelectrophoresiswasusedtoinvestigatethediversityofsymbioticbacteria.OurresultsrevealedthattheendophyticbacteriaofA.nilaparvataewerePantoeasp.,Pseudomonassp.andsomeunculturedbacteria.ThebacterialcommunitycompositioninA.nilaparvataesignificantlyvariedamongdifferenttemperaturesandgenerations,whichmightbepartiallycausedbytemperature,feedingbehaviorandthephysicalchangesofhosts.However,theanalysisofwspgeneshowedthattheWolbachiainA.nilaparvataebelongedtogroupA,sub-groupMorsandsub-groupDro.Sub-groupMorswasabsolutelydominant,andthisWolbachiacompositionremainedstableindifferenttemperaturesandgenerations,exceptforthe3rdgenerationunder34°Cduringwhichsub-groupDrobecamethedominantWolbachia.Theaboveresultssuggestthatthecontinuoushightemperatureof34°CcaninfluencetheWolbachiacommunitycompositioninA.nilaparvatae.
机构地区 不详
出处 《水稻科学:英文版》 2016年4期
出版日期 2016年04月14日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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