Wheat mutant MNR220 delays haustoria formation during leaf rust pathogenesis at the seedling stage

dc.contributor.authorTalajoor, Mina R.
dc.contributor.authorWang, Xiaojing
dc.contributor.authorZhang, Hongtao
dc.contributor.authorZhang, Peng
dc.contributor.authorBhavani, Sridhar
dc.contributor.authorTabe, Linda
dc.contributor.authorLagudah, Evans
dc.contributor.authorHuang, Li
dc.date.accessioned2017-08-14T21:00:17Z
dc.date.available2017-08-14T21:00:17Z
dc.date.issued2016-09
dc.description.abstractThis study reports further characterization of the defence mechanism of an EMS-induced mutant (MNR220) that displays enhanced resistance to leaf rust, stem rust, stripe rust and powdery mildew diseases. The broad-spectrum resistance of the mutant was characterized by a microscopy study and additional race screenings of two rust pathogens. The mutant displayed less disease severity in response to all the races tested, when compared with the wild-type. The microscopy study of the pathogenesis of a leaf rust race PBJJG on the mutant revealed that the resistance was first evident at the pre-haustorial stage; formation of haustoria was significantly delayed or inhibited in the mutant compared with the wild-type. The mutant displayed microscopic level of cell death even in the absence of any pathogens. These findings suggest that MNR220 mediates a spontaneous cell death that delays the infection process by delaying haustoria formation of the pathogen.en_US
dc.description.sponsorshipNSF BREAD program (IOS-0965429); National Natural Science Foundation of China (31501619)en_US
dc.identifier.citationTalajoor, Mina, Xiaojing Wang, Hongtao Zhang, Peng Zhang, Sridhar Bhavani, Linda Tabe, Evans Lagudah, and Li Huang. "Wheat mutant MNR220 delays haustoria formation during leaf rust pathogenesis at the seedling stage." Canadian Journal of Plant Pathology 38, no. 3 (September 2016): 338-347. DOI: 10.1080/07060661.2016.1205663.en_US
dc.identifier.issn0706-0661
dc.identifier.urihttps://scholarworks.montana.edu/handle/1/13498
dc.titleWheat mutant MNR220 delays haustoria formation during leaf rust pathogenesis at the seedling stageen_US
dc.typeArticleen_US
mus.citation.extentfirstpage338en_US
mus.citation.extentlastpage347en_US
mus.citation.issue3en_US
mus.citation.journaltitleCanadian Journal of Plant Pathologyen_US
mus.citation.volume38en_US
mus.data.thumbpage6en_US
mus.identifier.categoryLife Sciences & Earth Sciencesen_US
mus.identifier.doi10.1080/07060661.2016.1205663en_US
mus.relation.collegeCollege of Agricultureen_US
mus.relation.departmentPlant Sciences & Plant Pathology.en_US
mus.relation.universityMontana State University - Bozemanen_US

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