期刊
MOLECULAR PLANT PATHOLOGY
卷 21, 期 12, 页码 1606-1619出版社
WILEY
DOI: 10.1111/mpp.13001
关键词
chemosensory proteins; light perception; Pseudomonas syringae; virulence
资金
- Ministerio de Ciencia, Innovacion y Universidades [RTI2018-095222-B-I00]
Adaptation and efficient colonization of the phyllosphere are essential processes for the switch to an epiphytic stage in foliar bacterial pathogens. Here, we explore the interplay among light perception and global transcriptomic alterations in epiphytic populations of the hemibiotrophic pathogenPseudomonas syringaepv.tomatoDC3000 (PsPto) following contact with tomato leaves. We found that blue-light perception by PsPto on leaf surfaces is required for optimal colonization. Blue light triggers the activation of metabolic activity and increases the transcript levels of five chemoreceptors through the function of light oxygen voltage and BphP1 photoreceptors. The inactivation of PSPTO_1008 and PSPTO_2526 chemoreceptors causes a reduction in virulence. Our results indicate that during PsPto interaction with tomato plants, light perception, chemotaxis, and virulence are highly interwoven processes.
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