Cargando…

Root exudates influence rhizosphere fungi and thereby synergistically regulate Panax ginseng yield and quality

Root exudates contain a complex array of primary and specialized metabolites that play important roles in plant growth due to their stimulatory and inhibitory activities that can select for specific microbes. In this study, we investigated the effects of different root exudate concentrations on the...

Descripción completa

Detalles Bibliográficos
Autores principales: Sun, Jin, Yang, Jing, Zhao, Shuyue, Yu, Qian, Weng, Lili, Xiao, Chunping
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10397396/
https://www.ncbi.nlm.nih.gov/pubmed/37547697
http://dx.doi.org/10.3389/fmicb.2023.1194224
_version_ 1785083902566596608
author Sun, Jin
Yang, Jing
Zhao, Shuyue
Yu, Qian
Weng, Lili
Xiao, Chunping
author_facet Sun, Jin
Yang, Jing
Zhao, Shuyue
Yu, Qian
Weng, Lili
Xiao, Chunping
author_sort Sun, Jin
collection PubMed
description Root exudates contain a complex array of primary and specialized metabolites that play important roles in plant growth due to their stimulatory and inhibitory activities that can select for specific microbes. In this study, we investigated the effects of different root exudate concentrations on the growth of ginseng (Panax ginseng C. A. Mey), ginsenoside levels, and soil fungal community composition and diversity. The results showed that low root exudate concentrations in the soil promoted ginseng rhizome biomass and ginsenoside levels (Rg1, Re, Rf, Rg2, Rb1, Ro, Rc, Rb2, Rb3, and Rd) in rhizomes. However, the rhizome biomass and ginsenoside levels gradually decreased with further increases in the root exudate concentration. ITS sequencing showed that low root exudate concentrations in the soil hardly altered the rhizosphere fungal community structure. High root exudate concentrations altered the structure, involving microecological imbalance, with reduced abundances of potentially beneficial fungi (such as Mortierella) and increased abundances of potentially pathogenic fungi (such as Fusarium). Correlation analysis showed that rhizome biomass and ginsenoside levels were significantly positively correlated with the abundances of potentially beneficial fungi, while the opposite was true for potentially pathogenic fungi. Overall, low root exudate concentrations promote the growth and development of ginseng; high root exudate concentrations lead to an imbalance in the rhizosphere fungal community of ginseng and reduce the plant’s adaptability. This may be an important factor in the reduced ginseng yield and quality and soil sickness when ginseng is grown continuously.
format Online
Article
Text
id pubmed-10397396
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher Frontiers Media S.A.
record_format MEDLINE/PubMed
spelling pubmed-103973962023-08-04 Root exudates influence rhizosphere fungi and thereby synergistically regulate Panax ginseng yield and quality Sun, Jin Yang, Jing Zhao, Shuyue Yu, Qian Weng, Lili Xiao, Chunping Front Microbiol Microbiology Root exudates contain a complex array of primary and specialized metabolites that play important roles in plant growth due to their stimulatory and inhibitory activities that can select for specific microbes. In this study, we investigated the effects of different root exudate concentrations on the growth of ginseng (Panax ginseng C. A. Mey), ginsenoside levels, and soil fungal community composition and diversity. The results showed that low root exudate concentrations in the soil promoted ginseng rhizome biomass and ginsenoside levels (Rg1, Re, Rf, Rg2, Rb1, Ro, Rc, Rb2, Rb3, and Rd) in rhizomes. However, the rhizome biomass and ginsenoside levels gradually decreased with further increases in the root exudate concentration. ITS sequencing showed that low root exudate concentrations in the soil hardly altered the rhizosphere fungal community structure. High root exudate concentrations altered the structure, involving microecological imbalance, with reduced abundances of potentially beneficial fungi (such as Mortierella) and increased abundances of potentially pathogenic fungi (such as Fusarium). Correlation analysis showed that rhizome biomass and ginsenoside levels were significantly positively correlated with the abundances of potentially beneficial fungi, while the opposite was true for potentially pathogenic fungi. Overall, low root exudate concentrations promote the growth and development of ginseng; high root exudate concentrations lead to an imbalance in the rhizosphere fungal community of ginseng and reduce the plant’s adaptability. This may be an important factor in the reduced ginseng yield and quality and soil sickness when ginseng is grown continuously. Frontiers Media S.A. 2023-07-20 /pmc/articles/PMC10397396/ /pubmed/37547697 http://dx.doi.org/10.3389/fmicb.2023.1194224 Text en Copyright © 2023 Sun, Yang, Zhao, Yu, Weng and Xiao. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Microbiology
Sun, Jin
Yang, Jing
Zhao, Shuyue
Yu, Qian
Weng, Lili
Xiao, Chunping
Root exudates influence rhizosphere fungi and thereby synergistically regulate Panax ginseng yield and quality
title Root exudates influence rhizosphere fungi and thereby synergistically regulate Panax ginseng yield and quality
title_full Root exudates influence rhizosphere fungi and thereby synergistically regulate Panax ginseng yield and quality
title_fullStr Root exudates influence rhizosphere fungi and thereby synergistically regulate Panax ginseng yield and quality
title_full_unstemmed Root exudates influence rhizosphere fungi and thereby synergistically regulate Panax ginseng yield and quality
title_short Root exudates influence rhizosphere fungi and thereby synergistically regulate Panax ginseng yield and quality
title_sort root exudates influence rhizosphere fungi and thereby synergistically regulate panax ginseng yield and quality
topic Microbiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10397396/
https://www.ncbi.nlm.nih.gov/pubmed/37547697
http://dx.doi.org/10.3389/fmicb.2023.1194224
work_keys_str_mv AT sunjin rootexudatesinfluencerhizospherefungiandtherebysynergisticallyregulatepanaxginsengyieldandquality
AT yangjing rootexudatesinfluencerhizospherefungiandtherebysynergisticallyregulatepanaxginsengyieldandquality
AT zhaoshuyue rootexudatesinfluencerhizospherefungiandtherebysynergisticallyregulatepanaxginsengyieldandquality
AT yuqian rootexudatesinfluencerhizospherefungiandtherebysynergisticallyregulatepanaxginsengyieldandquality
AT wenglili rootexudatesinfluencerhizospherefungiandtherebysynergisticallyregulatepanaxginsengyieldandquality
AT xiaochunping rootexudatesinfluencerhizospherefungiandtherebysynergisticallyregulatepanaxginsengyieldandquality