ArticleApplied and environmental microbiology2003
External pH and nitrogen source affect secretion of pectate lyase by Colletotrichum gloeosporioides.
Article in Applied and environmental microbiology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Nano-Enabled Precision Management of Plant Anthracnose: Mechanisms of Action, Application Advances, and Future Perspectives.Journal of fungi (Basel, Switzerland) · 2026Review
- Effects of Ambient pH on the Growth and Development, Pathogenicity, and Diacetoxyscirpenol Accumulation of Muskmelon Fruit Caused byJournal of fungi (Basel, Switzerland) · 2024Article
- Mango anthracnose disease: the current situation and direction for future research.Frontiers in microbiology · 2023Review
- Article
- The Pattern and Function of DNA Methylation in Fungal Plant Pathogens.Microorganisms · 2020Review
- The pH-Responsive Transcription Factor PacC Governs Pathogenicity and Ochratoxin A Biosynthesis inFrontiers in microbiology · 2020Article
- Environmental pH modulates transcriptomic responses in the fungus Fusarium sp. associated with KSHB Euwallacea sp. near fornicatus.BMC genomics · 2018Article
- Extracellular enzymes ofMycology · 2018Article
- Pectate lyase affects pathogenicity in natural isolates of Colletotrichum coccodes and in pelA gene-disrupted and gene-overexpressing mutant lines.Molecular plant pathology · 2012Article
- Multi-factor regulation of pectate lyase secretion by Colletotrichum gloeosporioides pathogenic on avocado fruits.Molecular plant pathology · 2008Article
- Effect of ammonia production by Colletotrichum gloeosporioides on pelB activation, pectate lyase secretion, and fruit pathogenicity.Applied and environmental microbiology · 2006Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Accumulation of ammonia and associated tissue alkalinization predispose fruit to attack by Colletotrichum gloeosporioides: As the external pH increases from 4.0 to 6.0, pectate lyase (PL) and other extracellular proteins are secreted and accumulate. At pH 4.0 neither pelB (encoding PL) transcription nor PL secretion were detected; however, they were detected as the pH increased. Nitrogen assimilation also was required for PL secretion at pH 6.0. Both inorganic and organic nitrogen sources enhanced PL secretion at pH 6.0, but neither was sufficient for PL secretion at pH 4.0. Sequence analysis of the 5' upstream region of the pelB promoter revealed nine putative consensus binding sites for the Aspergillus transcription factor PacC. Consistent with this result, the transcript levels of pac1 (the C. gloeosporioides pacC homologue) and pelB increased in parallel as a function of pH. Our results suggest that the ambient pH and the nitrogen source are independent regulatory factors for processes linked to PL secretion and virulence of C. gloeosporioides.
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