Multi-omics revealed molecular mechanism of biphenyl phytoalexin formation in response to yeast extract-induced oxidative stress in Sorbus aucuparia suspension cells

© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature..

KEY MESSAGE: Yeast extract-induced oxidative stress in Sorbus aucuparia suspension cells leads to the biosynthesis of various hormones, which activates specific signaling pathways that augments biphenyl phytoalexin production. Pathogen incursions pose a significant threat to crop yield and can have a pronounced effect on agricultural productivity and food security. Biphenyl phytoalexins are a specialized group of secondary metabolites that are mainly biosynthesized by Pyrinae plants as a defense mechanism against various pathogens. Despite previous research demonstrating that biphenyl phytoalexin production increased dramatically in Sorbus aucuparia suspension cells (SASCs) treated with yeast extract (YE), the underlying mechanisms remain poorly understood. To address this gap, we conducted an in-depth, multi-omics analysis of transcriptome, proteome, and metabolite (including biphenyl phytoalexins and phytohormones) dynamics in SASCs exposed to YE. Our results indicated that exposure to YE-induced oxidative stress in SASCs, leading to the biosynthesis of a range of hormones, including jasmonic acid (JA), jasmonic acid isoleucine (JA-ILE), gibberellin A4 (GA4), indole-3-carboxylic acid (ICA), and indole-3-acetic acid (IAA). These hormones activated specific signaling pathways that promoted phenylpropanoid biosynthesis and augmented biphenyl phytoalexin production. Moreover, reactive oxygen species (ROS) generated during this process also acted as signaling molecules, amplifying the phenylpropanoid biosynthesis cascade through activation of the mitogen-activated protein kinase (MAPK) pathway. Key genes involved in these signaling pathways included SaBIS1, SaBIS2, SaBIS3, SaPAL, SaB4H, SaOMT, SaUGT1, SaLOX2, SaPR1, SaCHIB1, SaCHIB2 and SaCHIB3. Collectively, this study provided intensive insights into biphenyl phytoalexin accumulation in YE-treated SASCs, which would inform the development of more efficient disease-resistance strategies in economically significant cultivars.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:43

Enthalten in:

Plant cell reports - 43(2024), 3 vom: 10. Feb., Seite 62

Sprache:

Englisch

Beteiligte Personen:

Li, Yuan [VerfasserIn]
Yang, Jian [VerfasserIn]
Zhou, Junhui [VerfasserIn]
Wan, Xiufu [VerfasserIn]
Liu, Juan [VerfasserIn]
Wang, Sheng [VerfasserIn]
Ma, Xiaojing [VerfasserIn]
Guo, Lanping [VerfasserIn]
Luo, Zhiqiang [VerfasserIn]

Links:

Volltext

Themen:

2L9GJK6MGN
6RI5N05OWW
Biphenyl Compounds
Biphenyl phytoalexins
Cyclopentanes
Diphenyl
Hormones
Jasmonic acid
Journal Article
Oxidative stress
Oxylipins
Phytoalexins
Plant hormone signaling
Sesquiterpenes
Sorbus aucuparia suspension cells
Yeast extract

Anmerkungen:

Date Completed 14.02.2024

Date Revised 12.03.2024

published: Electronic

Citation Status MEDLINE

doi:

10.1007/s00299-024-03155-5

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM368263223