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- Title
利用代谢组学分析红汁乳菇-马尾松菌根苗根系分泌物.
- Authors
申爱荣; 谭著明; 谭 云; 沈宝明; 刘丽娜; 李赛男; 曾粮斌
- Abstract
In order to investigate potential substances that promote the growth and mycorrhizal synthesis of Lactarius hatsudake, metabolites in the root exudates of L. hatsudake-Pinus massoniana mycorrhizal seedlings and non-mycorrhizal P. massoniana seedlings were detected by untargeted metabolome (LC-MS/MS) analysis. The results showed that there were 352 differential metabolites in the root system of L. hatsudake-P. massoniana mycorrhizal seedlings under both positive and negative ion modes compared with non-mycorrhizal P. massoniana seedlings. Among these differential metabolites, 315 metabolites were significantly up-regulated and 37 metabolites were significantly down-regulated. They were enriched in 28 pathways, such as metabolic pathway, antibiotic biosynthesis, lysine degradation and secondary metabolite biosynthesis. Some differential metabolites, including 2-isopropylmalic acid, phosphoric acid, UDP-N-acetylglucosamine, jasmonic acid, and mevalonic acid were involved in multiple metabolic pathways. These compounds may play an important role in the formation of L. hatsudake-P. massoniana mycorrhiza. Nine significantly different metabolites were selected to study their effects on the mycelial growth of L. hatsudake JH5 and mycorrhizal formation in L. hatsudake-P. massoniana seedlings. D-aspartic acid, DL-arginine, desthiobiotin and (+)-abscisic acid promoted the mycelial growth of L. hatsudake JH5 at 1 mg·L−1, and dethiobiotin, nicotinic acid and (+)-abscisic acid promoted the mycorrhizal formation in L. hatsudake-P. massoniana seedlings at 1 mg·L−1. This study provided a reference for highefficiency cultivation of L. hatsudake-P. massoniana seedlings.
- Subjects
PLANT exudates; JASMONIC acid; ANIONS; CATIONS; PHOSPHORIC acid
- Publication
Acta Edulis Fungi, 2024, Vol 31, Issue 4, p101
- ISSN
1005-9873
- Publication type
Article
- DOI
10.16488/j.cnki.1005-9873.2024.04.011