Phytophthora nicotianae Infection of Citrus Leaves and Host Defense Activation Compared to Root Infection.
Identifieur interne : 000336 ( Main/Exploration ); précédent : 000335; suivant : 000337Phytophthora nicotianae Infection of Citrus Leaves and Host Defense Activation Compared to Root Infection.
Auteurs : Jian Wu [États-Unis, République populaire de Chine] ; Utpal Handique [États-Unis, République populaire de Chine] ; James Graham [États-Unis] ; Evan Johnson [États-Unis]Source :
- Phytopathology [ 0031-949X ] ; 2020.
Descripteurs français
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English descriptors
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Abstract
Currently, little is known about the host pathogen interaction between Phytophthora spp. and citrus roots versus leaves. Therefore, we compared the molecular events occurring in citrus roots and leaves after zoospore inoculation with Phytophthora nicotianae. We analyzed the physical characteristics and genetic responses to P. nicotianae infection of leaves and roots for susceptible and tolerant citrus rootstocks to examine the potential for leaves to model root responses to P. nicotianae infection. Leaves responded faster and stronger to P. nicotianae infection than roots, and leaves showed greater differential response than roots. In addition to differences in hormonal responses, sugar, phospholipase D (PLD), and phospholipase A (PLA) involvement in the interaction between citrus and P. nicotianae was identified. This work, for the first time, creates a solid P. nicotianae zoospore infection protocol, reports P. nicotianae infection on citrus leaves through stomata, and provides evidence that different host organs respond to the pathogen differentially in timing and magnitude. This work identifies the hormones, sugars, pathogenesis-related genes, PLDs, and PLAs that are involved in the molecular events occurring in citrus under infection of P. nicotianae zoospore, and advances our understanding of the mechanisms underlying the interaction.
DOI: 10.1094/PHYTO-09-19-0343-R
PubMed: 32228377
Affiliations:
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(MeSH)</term><term>Feuilles de plante (MeSH)</term><term>Humains (MeSH)</term><term>Maladies des plantes (MeSH)</term><term>Phytophthora (MeSH)</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Citrus</term><term>Humans</term><term>Infections</term><term>Phytophthora</term><term>Plant Diseases</term><term>Plant Leaves</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Citrus</term><term>Feuilles de plante</term><term>Humains</term><term>Maladies des plantes</term><term>Phytophthora</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Currently, little is known about the host pathogen interaction between <i>Phytophthora</i> spp. and citrus roots versus leaves. Therefore, we compared the molecular events occurring in citrus roots and leaves after zoospore inoculation with <i>Phytophthora nicotianae</i>. We analyzed the physical characteristics and genetic responses to <i>P. nicotianae</i> infection of leaves and roots for susceptible and tolerant citrus rootstocks to examine the potential for leaves to model root responses to <i>P. nicotianae</i> infection. Leaves responded faster and stronger to <i>P. nicotianae</i> infection than roots, and leaves showed greater differential response than roots. In addition to differences in hormonal responses, sugar, phospholipase D (PLD), and phospholipase A (PLA) involvement in the interaction between citrus and <i>P. nicotianae</i> was identified. This work, for the first time, creates a solid <i>P. nicotianae</i> zoospore infection protocol, reports <i>P. nicotianae</i> infection on citrus leaves through stomata, and provides evidence that different host organs respond to the pathogen differentially in timing and magnitude. This work identifies the hormones, sugars, pathogenesis-related genes, PLDs, and PLAs that are involved in the molecular events occurring in citrus under infection of <i>P. nicotianae</i> zoospore, and advances our understanding of the mechanisms underlying the interaction.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" IndexingMethod="Automated" Owner="NLM"><PMID Version="1">32228377</PMID><DateCompleted><Year>2020</Year><Month>08</Month><Day>04</Day></DateCompleted><DateRevised><Year>2020</Year><Month>08</Month><Day>04</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0031-949X</ISSN><JournalIssue CitedMedium="Print"><Volume>110</Volume><Issue>8</Issue><PubDate><Year>2020</Year><Month>Aug</Month></PubDate></JournalIssue><Title>Phytopathology</Title><ISOAbbreviation>Phytopathology</ISOAbbreviation></Journal><ArticleTitle><i>Phytophthora nicotianae</i> Infection of Citrus Leaves and Host Defense Activation Compared to Root Infection.</ArticleTitle><Pagination><MedlinePgn>1437-1448</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1094/PHYTO-09-19-0343-R</ELocationID><Abstract><AbstractText>Currently, little is known about the host pathogen interaction between <i>Phytophthora</i> spp. and citrus roots versus leaves. Therefore, we compared the molecular events occurring in citrus roots and leaves after zoospore inoculation with <i>Phytophthora nicotianae</i>. We analyzed the physical characteristics and genetic responses to <i>P. nicotianae</i> infection of leaves and roots for susceptible and tolerant citrus rootstocks to examine the potential for leaves to model root responses to <i>P. nicotianae</i> infection. Leaves responded faster and stronger to <i>P. nicotianae</i> infection than roots, and leaves showed greater differential response than roots. In addition to differences in hormonal responses, sugar, phospholipase D (PLD), and phospholipase A (PLA) involvement in the interaction between citrus and <i>P. nicotianae</i> was identified. This work, for the first time, creates a solid <i>P. nicotianae</i> zoospore infection protocol, reports <i>P. nicotianae</i> infection on citrus leaves through stomata, and provides evidence that different host organs respond to the pathogen differentially in timing and magnitude. This work identifies the hormones, sugars, pathogenesis-related genes, PLDs, and PLAs that are involved in the molecular events occurring in citrus under infection of <i>P. nicotianae</i> zoospore, and advances our understanding of the mechanisms underlying the interaction.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Wu</LastName><ForeName>Jian</ForeName><Initials>J</Initials><Identifier Source="ORCID">http://orcid.org/0000-0001-8332-9861</Identifier><AffiliationInfo><Affiliation>Citrus Research and Education Center, University of Florida, 700 Experiment Station Road, Lake Alfred, FL, U.S.A.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>Potato Engineering & Technology Research Center, Inner Mongolia University, 235 University Road, Hohhot, Inner Mongolia, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Handique</LastName><ForeName>Utpal</ForeName><Initials>U</Initials><AffiliationInfo><Affiliation>Citrus Research and Education Center, University of Florida, 700 Experiment Station Road, Lake Alfred, FL, U.S.A.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>Potato Engineering & Technology Research Center, Inner Mongolia University, 235 University Road, Hohhot, Inner Mongolia, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Graham</LastName><ForeName>James</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>Citrus Research and Education Center, University of Florida, 700 Experiment Station Road, Lake Alfred, FL, U.S.A.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Johnson</LastName><ForeName>Evan</ForeName><Initials>E</Initials><AffiliationInfo><Affiliation>Citrus Research and Education Center, University of Florida, 700 Experiment Station Road, Lake Alfred, FL, U.S.A.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal 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Leaves</DescriptorName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Phytophthora nicotianae</Keyword><Keyword MajorTopicYN="N">citrus</Keyword><Keyword MajorTopicYN="N">defense genes</Keyword><Keyword MajorTopicYN="N">hormonal regulation</Keyword><Keyword MajorTopicYN="N">mycology</Keyword><Keyword MajorTopicYN="N">phospholipases</Keyword><Keyword MajorTopicYN="N">plant stress and abiotic disorders</Keyword><Keyword MajorTopicYN="N">stomata</Keyword><Keyword MajorTopicYN="N">sugar metabolism</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2020</Year><Month>4</Month><Day>2</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2020</Year><Month>8</Month><Day>5</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate 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Johnson</name></country><country name="République populaire de Chine"><noRegion><name sortKey="Wu, Jian" sort="Wu, Jian" uniqKey="Wu J" first="Jian" last="Wu">Jian Wu</name></noRegion><name sortKey="Handique, Utpal" sort="Handique, Utpal" uniqKey="Handique U" first="Utpal" last="Handique">Utpal Handique</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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