Abstract:
:Biotrophic fungal pathogens must evade or suppress plant defence responses to establish a compatible interaction in living host tissue. In addition, metabolic changes during disease reflect both the impact of nutrient acquisition by the fungus to support proliferation and the integration of metabolism with the plant defence response. In this study, we used transcriptome analyses to predict that the chloroplast and associated functions are important for symptom formation by the biotrophic fungus Ustilago maydis on maize. We tested our prediction by examining the impact on disease of a genetic defect (whirly1) in chloroplast function. In addition, we examined whether disease was influenced by inhibition of glutamine synthetase by glufosinate (impacting amino acid biosynthesis) or inhibition of 3-phosphoshikimate 1-carboxyvinyltransferase by glyphosate (influencing secondary metabolism). All of these perturbations increased the severity of disease, thus suggesting a contribution to resistance. Overall, these findings provide a framework for understanding the components of host metabolism that benefit the plant versus the pathogen during a biotrophic interaction. They also reinforce the emerging importance of the chloroplast as a mediator of plant defence.
journal_name
Mol Plant Patholjournal_title
Molecular plant pathologyauthors
Kretschmer M,Croll D,Kronstad JWdoi
10.1111/mpp.12485subject
Has Abstractpub_date
2017-12-01 00:00:00pages
1210-1221issue
9eissn
1464-6722issn
1364-3703journal_volume
18pub_type
杂志文章abstract::The vascular pathogen Xanthomonas oryzae pv. oryzae (Xoo) and nonvascular pathogen Xanthomonas oryzae pv. oryzicola (Xoc) cause bacterial blight (BB) and bacterial leaf streak (BLS) diseases of rice, respectively. We have previously identified the avirulence gene avrXa27 from Xoo PXO99(A), which specifically induces t...
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pub_type: 杂志文章
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pub_type: 杂志文章,评审
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更新日期:2017-01-01 00:00:00
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pub_type: 杂志文章
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pub_type: 杂志文章
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更新日期:2000-07-01 00:00:00
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doi:10.1111/mpp.12589
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pub_type: 杂志文章
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更新日期:2020-06-01 00:00:00
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pub_type: 杂志文章,评审
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更新日期:2018-11-01 00:00:00
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pub_type: 杂志文章,评审
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