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ChSte7 Is Required for Vegetative Growth and Various Plant Infection Processes in Colletotrichum higginsianum
Joint Authors
Yuan, Qinfeng
Chen, Meijuan
Yan, Yaqin
Gu, Qiongnan
Huang, Junbin
Zheng, Lu
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-08-03
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Colletotrichum higginsianum is an important hemibiotrophic phytopathogen that causes crucifer anthracnose in various regions of the world.
In many plant-pathogenic fungi, the Ste11-Ste7-Fus3/Kss1 kinase pathway is essential to pathogenicity and various plant infection processes.
To date, the role of ChSte7 in C.
higginsianum encoding a MEK orthologue of Ste7 in Saccharomyces cerevisiae has not been elucidated.
In this report, we investigated the function of ChSte7 in the pathogen.
The ChSte7 is predicted to encode a 522-amino-acid protein with a S_TKc conserved domain that shares 44% identity with Ste7 in S.
cerevisiae.
ChSte7 disruption mutants showed white colonies with irregularly shaped edges and extremely decreased growth rates and biomass productions.
The ChSte7 disruption mutants did not form appressoria and showed defects in pathogenicity on leaves of Arabidopsis thaliana.
When inoculated onto wounded leaf tissues, the ChSte7 disruption mutants grew only on the surface of host tissues but failed to cause lesions beyond the wound site.
In contrast, both the wild-type and complementation strains showed normal morphology, produced appressoria, and caused necrosis on leaves of Arabidopsis.
Analysis with qRT-PCR suggested that ChSte7 was highly expressed during the late stages of infection.
Taken together, our results demonstrate that ChSte7 is involved in regulation of vegetative growth, appressorial formation of C.
higginsianum, and postinvasive growth in host tissues.
American Psychological Association (APA)
Yuan, Qinfeng& Chen, Meijuan& Yan, Yaqin& Gu, Qiongnan& Huang, Junbin& Zheng, Lu. 2016. ChSte7 Is Required for Vegetative Growth and Various Plant Infection Processes in Colletotrichum higginsianum. BioMed Research International،Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1098802
Modern Language Association (MLA)
Yuan, Qinfeng…[et al.]. ChSte7 Is Required for Vegetative Growth and Various Plant Infection Processes in Colletotrichum higginsianum. BioMed Research International No. 2016 (2016), pp.1-11.
https://search.emarefa.net/detail/BIM-1098802
American Medical Association (AMA)
Yuan, Qinfeng& Chen, Meijuan& Yan, Yaqin& Gu, Qiongnan& Huang, Junbin& Zheng, Lu. ChSte7 Is Required for Vegetative Growth and Various Plant Infection Processes in Colletotrichum higginsianum. BioMed Research International. 2016. Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1098802
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1098802