Investigation of the Arabidopsis nonhost resistance mechanism against the soybean pathogen, Phytophthora sojae

dc.contributor.advisor Madan K. Bhattacharyya
dc.contributor.author Sumit, Rishi
dc.contributor.department Agronomy
dc.date 2018-08-11T05:41:03.000
dc.date.accessioned 2020-06-30T02:51:11Z
dc.date.available 2020-06-30T02:51:11Z
dc.date.copyright Tue Jan 01 00:00:00 UTC 2013
dc.date.embargo 2001-01-01
dc.date.issued 2013-01-01
dc.description.abstract <p>Nonhost resistance (NHR) provides immunity to all members of a plant species against all isolates of a microorganism that is pathogenic to other plant species. Three <em>Arabidopsis thaliana PEN</em> (penetration deficient) genes, <em>PEN1, 2</em> and <em>3</em> have been shown to provide prehaustorial NHR against the barley pathogen <em>Blumeria graminis</em> f. sp. <em>hordei</em>. Arabidopsis <em>pen1-1</em> mutant is penetrated by the hemibiotrophic oomycete pathogen, <em>Phytophthora sojae</em> that causes root and stem rot disease in soybean. The <em> P. sojae</em> susceptible (<em>pss</em>) <em>1</em> mutant is infected by both <em>P. sojae</em> and the hemibiotrophic fungal pathogen, <em>Fusarium virguliforme</em> that causes sudden death syndrome in soybean. Thus, a common Arabidopsis NHR mechanism is functional against both hemibiotrophic oomycete and fungal pathogens of soybean. <em>PSS1</em> encodes a glycine-rich protein (GRP), named GRP1, with no known function. Transformation of the soybean cultivar Williams 82 with AtGRP1 conferred enhanced resistance to both <em>P. sojae</em> and <em>F. virguliforme</em>. My study established that nonhost resistance genes are ideal for engineering broad-spectrum disease resistance in crop plants.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/etd/13647/
dc.identifier.articleid 4654
dc.identifier.contextkey 5623050
dc.identifier.doi https://doi.org/10.31274/etd-180810-749
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath etd/13647
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/27834
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/etd/13647/Sumit_iastate_0097M_13979.pdf|||Fri Jan 14 19:57:41 UTC 2022
dc.subject.disciplines Agricultural Science
dc.subject.disciplines Agriculture
dc.subject.disciplines Genetics
dc.subject.disciplines Molecular Biology
dc.subject.disciplines Plant Pathology
dc.subject.keywords Arabidopsis
dc.subject.keywords Fusarium virguliforme
dc.subject.keywords Nonhost resistance
dc.subject.keywords Phytophthora sojae
dc.subject.keywords Root rot
dc.subject.keywords Soybean
dc.title Investigation of the Arabidopsis nonhost resistance mechanism against the soybean pathogen, Phytophthora sojae
dc.type article
dc.type.genre thesis
dspace.entity.type Publication
relation.isOrgUnitOfPublication fdd5c06c-bdbe-469c-a38e-51e664fece7a
thesis.degree.level thesis
thesis.degree.name Master of Science
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