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MARVEL family proteins contribute to vegetative growth, development, and virulence of the insect fungal pathogen Beauveria bassiana.

Author information

Affiliations

  • 1. Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou 310058, China; College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China.
      Authors
    • Peng YJ 1
    (1 author)
  • 2. Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou 310058, China.
      Authors
    • Zhang H 2
    • Feng MG 2
    • Ying SH 2
    (3 authors)
  • 3. College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China.
      Authors
    • Wang G 3
    (1 author)

ORCIDs linked to this article

Journal of Invertebrate Pathology, 20 Feb 2024, 203:108076
https://doi.org/10.1016/j.jip.2024.108076 PMID: 38382734 

Abstract 

Beauveria bassiana is one of the most extensively studied entomopathogenic fungi (EPF) and is widely used as a biocontrol agent against various insect pests. Proteins containing the MARVEL domain are conserved in eukaryotes, typically with four transmembrane structures. In this study, we identified the five MARVEL domain proteins in B. bassiana. Five MARVEL domain proteins were localized to cytomembrane and vacuoles in B. bassiana, but had different roles in maintaining the lipid-droplet homeostasis. These proteins were required for fungal virulence, but differentially contributed to fungal utilization of nutrients, stress tolerance, and development under aerial and submerged conditions. Notably, BbMARVEL2 was essential for conidial surface morphology. Additionally, these five MARVEL domain proteins contributed to fungal interaction with the host immune defense. This study provides new mechanistic insights into the life cycle of B. bassiana as a biocontrol agent.

Full text links 

Read article at publisher's site: https://doi.org/10.1016/j.jip.2024.108076

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Funding 

Funders who supported this work.

National Natural Science Foundation of China (1)

Zhejiang University