煙草青枯病發(fā)生與根際細菌群落結(jié)構(gòu)特征關(guān)聯(lián)分析

打開文本圖片集

引用格式：，等.煙草青枯病發(fā)生與根際細菌群落結(jié)構(gòu)特征關(guān)聯(lián)分析[J].湖南農(nóng)業(yè)科學，2025（5）：54-62

DOI：10.16498/j.cnki.hnnykx.2025.005.011

中圖分類號：Q939.96 文獻標識碼：A 文章編號：1006-060X（2025）05-0054-09

Abstract：Thissdyimstoinvestigateteasociationbetweentobaccobacterialwiltseverityndrzosphremicrobialcounity structure.Tobacco plants with different disease indexes wereused as materials，and high-throughput sequencing was performed torevealtherhizosphere microbialcommunitystructure.Theresultsshowedthat increase intheseverityof tobacco bacterialwilt mildlyaffectedthebacterialphylaandgenerabutsignificantlyaffectedtheabundanceofvarious groupsofbacteria.Atthe phylum level，thediseaseseverityhadthe mostsignificantefectsonActinobacteriaandFmicutes，decreasingtheirrelativeabundnce by 16.04% and 12.68% ，respectively，while increasing the abundance of Bacteroidetes by 20.41% .At the genus level， the abundance of Burkholderceeatofccilo severityof thediseaseenhanced.Theresultsofalphaandbeta diversityanalysesshowed thattheincidenceoftobacco bacterial wilt increased the number and communitystructure diversity of rhizosphere bacteria.

Keywords：tobacco bacterial wilt; rhizosphere bacterial diversity; community characteristics

煙草青枯病是由青枯雷爾氏菌（Ralstoniasolanacearum）引起的一種毀滅性土傳細菌病害，給我國煙葉生產(chǎn)造成了極大的經(jīng)濟損失[1-2]。（剩余10393字）