热带农业科学2025，Vol.45Issue(1)：26-31,6.DOI:10.12008/j.issn.1009-2196.2025.01.005
Biolog Eco解析不同抗性番木瓜土壤微生物群落特征
Soil Microbial Community Characteristics of Different Resistant Papayas were Analyzed by Biolog Eco Microplates
摘要
Abstract
Papaya(Carica papaya L.)is an important tropical economic fruit,and papaya ring spot virus(PRSV)is one of the primary diseases of papaya plants,causing significant losses to the papaya industry.In this study,papaya varieties with field resistance to PRSV(HN)and susceptible papaya varieties(YK and NC)were used as research materials.Rhizosphere soils from resistant and susceptible plants were collected before the papaya was inoculated with the PRSV virus,and soil microbial communities were studied via the Biolog Eco microplate method.The results revealed that the AWCD values of the HN rhizosphere soil microorganisms were slightly higher than those of susceptible papaya varieties YK and NC.Diversity index analysis of the rhizosphere soil microbial community revealed significant differences between NC and YK,as well as between NC and HN,but no significant differences were detected between HN and YK.Principal component analysis showed that there were seven carbon sources with higher utilization by HN soil microorganisms:D-xylose,L-arginine,Tween-40,itaconic acid,glucose-1-phosphate,2-hydroxybenzoic acid,and D-malic acid.There are five carbon sources with high utilization by NC soil microorganisms:D-cellobiose,N-acetyl-D-glucosamine,γ-hydroxybutyric acid,L-threonine,and putrescine.There were four carbon sources with higher utilization by YK soil microorganisms:pyruvic acid methyl ester,i-erythritol,α-ketobutyric acid,and L-asparagine.These results indicated that the rhizosphere soil microorganisms of resistant papaya and susceptible papayas were specific in utilizing these carbon sources,and long-term cultivation may lead to changes in the function of microbial communities,which may affect the resistance of papaya to virus damage.关键词
番木瓜/土壤微生物群落/Biolog Eco/碳源利用Key words
papaya/soil microbial community/Biolog Eco/carbon source utilization分类
农业科技引用本文复制引用
曹扬,周霞,孔华,霍姗姗,李春强,谭燕华..Biolog Eco解析不同抗性番木瓜土壤微生物群落特征[J].热带农业科学,2025,45(1):26-31,6.基金项目
2020 年海南省自然科学基金高层次人才项目(No.320RC716). （No.320RC716）
