热带亚热带植物学报2024，Vol.32Issue(2)：209-218,10.DOI:10.11926/jtsb.4741
低温诱导大百合鳞茎休眠解除与酚类代谢关系
Association Between Dormancy Release and Phenolic Metabolic Alteration Induced by Low Temperature in Cardiocrinum giganteum Bulbs
摘要
Abstract
Cardiocrinum giganteum,a perennial bulbous plant of family Liliaceaeas,is an important medicinal and food homologous plant.The bulbs have typical dormancy characteristics,and low temperature is a major environmental factor to relieve dormancy of lily bulbs.In order to reveal the molecular mechanism of dormancy dissolution of Lily bulbs,metabolome and transcriptome analysis were performed on bulbs treated at 4℃ for 0,30 and 60 days,respectively.The results showed that dormancy release of bud was related to the metabolism of phenols,and the degradation of phenols was beneficial to the release of dormancy,among which PALs gene might play a major role in this process.Meanwhile,members of transcription factor families such as bHLH,bZIP,MYB and MADS were all significantly related with phenolic metabolites and involved in bulb dormancy release.Co-expression analysis further confirmed that PAL,CAD and POD were important regulatory genes for phenolic metabolism,MYB4,MYB114 and ICE1 were involved in the regulatory network of phenolic metabolism,and ICE1 might be the key factor connecting temperature signals and phenolic metabolism.Therefore,the interaction of these transcription factors with phenols might play an important role in breaking dormancy of bulbs.关键词
低温/酚类/休眠解除/转录组/代谢组/共表达Key words
Low temperature/Phenols/Dormancy release/Metabolome/Transcriptome/Co-expression引用本文复制引用
蔡子安,李荣琛,赵志珩,陈玉珍,卢存福..低温诱导大百合鳞茎休眠解除与酚类代谢关系[J].热带亚热带植物学报,2024,32(2):209-218,10.基金项目
广西特色经济林培育与利用重点实验室开放课题(19-B-01-02) （19-B-01-02）
广西创新驱动发展专项子课题(桂科AA17204058-03) （桂科AA17204058-03）
北京林业大学优秀研究生导师团队建设项目(YJSY-DSTD2022005)资助 This work was supported by the Open Project of Guangxi Key Laboratory of Cultivation and Utilization of Characteristic Economic Forest(Grant No.19-B-01-02),the Special Project for Innovation-driven Development in Guangxi(Grant No.AA17204058-03),and the Project for Outstanding Graduate Tutor Team Construction of Beijing Forestry University(Grant No.YJSY-DSTD2022005). （YJSY-DSTD2022005）
