Red-light is an environmental effector for mutualism between begomovirus and its vector whitefly

Environments such as light condition influence the spread of infectious diseases by affecting insect vector behavior. However, whether and how light affects the host defense which further affects insect preference and performance, remains unclear, nor has been demonstrated how pathogens co-adapt lig...

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Bibliographic Details
Published in:PLoS pathogens 2021-01, Vol.17 (1), p.e1008770-e1008770
Main Authors: Zhao, Pingzhi, Zhang, Xuan, Gong, Yuqing, Wang, Duan, Xu, Dongqing, Wang, Ning, Sun, Yanwei, Gao, Lianbo, Liu, Shu-Sheng, Deng, Xing Wang, Kliebenstein, Daniel J, Zhou, Xueping, Fang, Rong-Xiang, Ye, Jian
Format: Article
Language:English
Subjects:
Animals
Arabidopsis
Arabidopsis - metabolism
Arabidopsis - virology
Basic Helix-Loop-Helix Transcription Factors - genetics
Basic Helix-Loop-Helix Transcription Factors - metabolism
Begomovirus - physiology
Biology and Life Sciences
Biosynthesis
Climate change
Crop diseases
Crops
Darkness
Disease transmission
Engineering and Technology
Experiments
Flowers & plants
Gene expression
Hemiptera - virology
Herbivores
Host plants
Insect Vectors - virology
Insects
Light
Medicine and Health Sciences
Monochromatic light
Mutualism
Nicotiana - metabolism
Nicotiana - virology
Pathogens
Photoreceptors
Physical Sciences
Phytochrome
Plant Diseases - virology
Population number
Properties
Proteins
Research and Analysis Methods
Symbiosis
Testing
Transcription factors
Transgenic plants
Vectors
Viral Proteins - genetics
Viral Proteins - metabolism
Virulence (Microbiology)
Virulence Factors - genetics
Virulence Factors - metabolism
Virus-vector relationships
Viruses
West Nile virus
White light
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Description
Summary:Environments such as light condition influence the spread of infectious diseases by affecting insect vector behavior. However, whether and how light affects the host defense which further affects insect preference and performance, remains unclear, nor has been demonstrated how pathogens co-adapt light condition to facilitate vector transmission. We previously showed that begomoviral βC1 inhibits MYC2-mediated jasmonate signaling to establish plant-dependent mutualism with its insect vector. Here we show red-light as an environmental catalyzer to promote mutualism of whitefly-begomovirus by stabilizing βC1, which interacts with PHYTOCHROME-INTERACTING FACTORS (PIFs) transcription factors. PIFs positively control plant defenses against whitefly by directly binding to the promoter of terpene synthase genes and promoting their transcription. Moreover, PIFs interact with MYC2 to integrate light and jasmonate signaling and regulate the transcription of terpene synthase genes. However, begomovirus encoded βC1 inhibits PIFs' and MYC2' transcriptional activity via disturbing their dimerization, thereby impairing plant defenses against whitefly-transmitted begomoviruses. Our results thus describe how a viral pathogen hijacks host external and internal signaling to enhance the mutualistic relationship with its insect vector.
ISSN:1553-7374
1553-7366
1553-7374
DOI:10.1371/journal.ppat.1008770