江西农业学报2024，Vol.36Issue(11)：36-44,9.DOI:10.19386/j.cnki.jxnyxb.2024.11.006
不同种源西红花生长及其染病球茎微生物差异分析
Difference of Growth and Infected Corm Microorganism of Saffron from Different Provenances
摘要
Abstract
This study compared the leaf length,corm weight,diameter,perimeter,nutrient accumulation,and the key medicinal component crocin between Chongming and Dutch corms.Additionally,Illumina MiSeq high-throughput sequencing technology was used to analyze microorganism difference of diseased corms of saffron from different provenances.The results showed that under the rice-saffron rotation system,Dutch corms exhibited remarkable advantages,including longer leaves and green periods,faster corm growth,and abundant accumulation of nutrients,particularly a significantly higher crocin content compared with Chongming corms.During storage,the incidence rates of rot disease in Chongming and Dutch corms were 6.67%and 6.00%,respectively,with the Dutch corms showing a slightly lower rate.Nevertheless,the microbial community composition of both types displayed a high degree of similarity.Further analysis revealed that the primary pathogenic factors of saffron corm rot were Penicillium and Fusarium genera,yet the potential combined infection of common aquatic bacteria such as Flavobacterium and Novosphingobium,as well as fungi like Ca-dophora luteo-olivacea,which frequently appears in rot diseases of other crops(grapes,kiwifruits),cannot be overlooked.This study preliminarily clarified the growth characteristics of saffron from different provenances and the microbial diversity and community structure in their diseased corms,providing a solid theoretical foundation and scientific basis for the introduction,evaluation,and efficient utilization of saffron crocus germplasm resources.关键词
西红花/种源/染病球茎/高通量测序技术/腐烂病/复合侵染/微生物组成Key words
Saffron/Provenance/Diseased corm/High-throughput sequencing/Rot disease/Mixed infection/Microorganism composition分类
农业科技引用本文复制引用
周琳,吴立峰,张永春,汤迪,杨柳燕..不同种源西红花生长及其染病球茎微生物差异分析[J].江西农业学报,2024,36(11):36-44,9.基金项目
上海市中央引导地方科技发展资金项目(YDZX20223100003004) （YDZX20223100003004）
上海市科委社会发展科技攻关项目(20dz1203900) （20dz1203900）
上海市科委农业领域项目(19391901000) （19391901000）
上海市植物种苗组培专业技术服务平台(21DZ2292300). （21DZ2292300）
