[-] Show simple item record

dc.contributor.advisorStacey, Gary, 1951-eng
dc.contributor.authorPatel, Ami Akshayeng
dc.date.issued2007eng
dc.date.submitted2007 Falleng
dc.descriptionThe entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file.eng
dc.descriptionTitle from title screen of research.pdf file (viewed on March 12, 2009)eng
dc.descriptionIncludes bibliographical references.eng
dc.descriptionThesis (Ph.D.) University of Missouri-Columbia 2007.eng
dc.descriptionDissertations, Academic -- University of Missouri--Columbia -- Plant pathology.eng
dc.description.abstractAtOPT6, is a member of oligopeptide transport (OPT) gene family. In Arabidopsis thaliana, there are nine members in the OPT gene family that are thought to be involved in peptide transport. Spacial and temporal expression of AtOPT6 correlates with transport of peptides in the major sink tissues indicating that this transporter may be involved in long distance transport of peptides to provide organic nitrogen to the developing plant organs. Over-expression of AtOPT6 leads to cadmium hyper-sensitivity and higher accumulation of cadmium and phytochelatins in root tissues. opt6 mutant plants exhibited less sensitivity to virulent pathogen Psuedomonas syringae pv tomato DC3000 and showed minimal chlorosis in leaves. The differential in bacterial growth in opt6 mutant and wild-type plants was abolished when infected with Pst DC3000 COR- strain, indicating a possible role of AtOPT6 in transport of bacterial phytotoxin coronatine. In addition, opt6 mutant plants showed less susceptibility when infected with both cyst and root-knot nematode. Expression of AtOPT6 increased during early stages of both cyst and root-knot nematode infection in and around the developing feeding sites. AtOPT6 mediated transport of various Arabidopsis CLAVATA3/ESR-like (CLE-like) and nematode secreted peptides when expressed in Xenopus. Collectively, these data suggest that AtOPT6 may transport nutrients into the feeding site or AtOPT6 transports plant CLEs or nematode secreted peptides into the infected root cells to induce root differentiation.eng
dc.identifier.merlinb66634994eng
dc.identifier.oclc314377090eng
dc.identifier.urihttps://hdl.handle.net/10355/4746
dc.identifier.urihttps://doi.org/10.32469/10355/4746eng
dc.languageEnglisheng
dc.publisherUniversity of Missouri--Columbiaeng
dc.relation.ispartofcollectionUniversity of Missouri--Columbia. Graduate School. Theses and Dissertationseng
dc.subject.lcshPlant-pathogen relationshipseng
dc.subject.lcshOligopeptideseng
dc.subject.lcshArabidopsis thalianaeng
dc.subject.lcshHeavy metals -- Physiological effecteng
dc.titleRole of the Arabidopsis peptide transporter AtOPT6 in heavy metal detoxification and plant-pathogen interactioneng
dc.typeThesiseng
thesis.degree.disciplinePlant pathology (MU)eng
thesis.degree.grantorUniversity of Missouri--Columbiaeng
thesis.degree.levelDoctoraleng
thesis.degree.namePh. D.eng


Files in this item

[PDF]
[PDF]
[PDF]

This item appears in the following Collection(s)

[-] Show simple item record