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Your search keyword '"Harold J. G. Meijer"' showing total 2 results
Start Over Author "Harold J. G. Meijer" Journal environmental microbiology
2 results on '"Harold J. G. Meijer"'

1. The heat shock transcription factor PsHSF1 ofPhytophthora sojaeis required for oxidative stress tolerance and detoxifying the plant oxidative burst

Author

Kai Tao, Yuting Sheng, Yuanchao Wang, Francine Govers, Xiaoyun Liu, Harold J. G. Meijer, Wenwu Ye, Chenlei Hua, Xinyu Yang, and Yonglin Wang

Subjects
Laccase, chemistry.chemical_classification, Reactive oxygen species, biology, fungi, food and beverages, medicine.disease_cause, biology.organism_classification, Microbiology, Respiratory burst, Heat shock factor, chemistry, medicine, Phytophthora sojae, Pathogen, Transcription factor, Ecology, Evolution, Behavior and Systematics, Oxidative stress
Abstract

In the interaction between plant and microbial pathogens, reactive oxygen species (ROS) rapidly accumulate upon pathogen recognition at the infection site and play a central role in plant defence. However, the mechanisms that plant pathogens use to counteract ROS are still poorly understood especially in oomycetes, filamentous organisms that evolved independently from fungi. ROS detoxification depends on transcription factors (TFs) that are highly conserved in fungi but much less conserved in oomycetes. In this study, we identified the TF PsHSF1 that acts as a modulator of the oxidative stress response in the soybean stem and root rot pathogen Phytophthora sojae. We found that PsHSF1 is critical for pathogenicity in P.?sojae by detoxifying the plant oxidative burst. ROS produced in plant defence can be detoxified by extracellular peroxidases and laccases which might be regulated by PsHSF1. Our study extends the understanding of ROS detoxification mechanism mediated by a heat shock TF in oomycetes.

Published
2014

2. The heat shock transcription factor PsHSF1 of Phytophthora sojae is required for oxidative stress tolerance and detoxifying the plant oxidative burst

Author

Yuting, Sheng, Yonglin, Wang, Harold J G, Meijer, Xinyu, Yang, Chenlei, Hua, Wenwu, Ye, Kai, Tao, Xiaoyun, Liu, Francine, Govers, and Yuanchao, Wang

Subjects
DNA-Binding Proteins, Phytophthora, Oxidative Stress, Heat Shock Transcription Factors, Host-Pathogen Interactions, Molecular Sequence Data, Soybeans, Reactive Oxygen Species, Plant Roots, Plant Diseases, Transcription Factors
Abstract

In the interaction between plant and microbial pathogens, reactive oxygen species (ROS) rapidly accumulate upon pathogen recognition at the infection site and play a central role in plant defence. However, the mechanisms that plant pathogens use to counteract ROS are still poorly understood especially in oomycetes, filamentous organisms that evolved independently from fungi. ROS detoxification depends on transcription factors (TFs) that are highly conserved in fungi but much less conserved in oomycetes. In this study, we identified the TF PsHSF1 that acts as a modulator of the oxidative stress response in the soybean stem and root rot pathogen Phytophthora sojae. We found that PsHSF1 is critical for pathogenicity in P. sojae by detoxifying the plant oxidative burst. ROS produced in plant defence can be detoxified by extracellular peroxidases and laccases which might be regulated by PsHSF1. Our study extends the understanding of ROS detoxification mechanism mediated by a heat shock TF in oomycetes.

Published
2014

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