Phytophthora pluvialis Studies on Douglas-fir Require Swiss Needle Cast Suppression.
Identifieur interne : 000942 ( Main/Exploration ); précédent : 000941; suivant : 000943Phytophthora pluvialis Studies on Douglas-fir Require Swiss Needle Cast Suppression.
Auteurs : Mireia G Mez-Gallego [Nouvelle-Zélande] ; Martin Karl-Friedrich Bader [Nouvelle-Zélande] ; Peter Matthew Scott [Nouvelle-Zélande] ; Sebastian Leuzinger [Nouvelle-Zélande] ; Nari Michelle Williams [Nouvelle-Zélande]Source :
- Plant disease [ 0191-2917 ] ; 2017.
Abstract
Phytophthora pluvialis is associated with early defoliation and shoot dieback in Douglas-fir in Oregon and New Zealand. In 2013, P. pluvialis was described from mixed tanoak-Douglas-fir forests in the Pacific Northwest and concurrently recognized as the main causal agent of red needle cast (RNC) in New Zealand radiata pine plantations. Little is known about its infection cycle and impact on host physiology. P. pluvialis studies in Douglas-fir are challenging due to the ubiquitous presence of the endophyte Phaeocryptopus gaeumannii, which produces similar symptoms and premature defoliation with persistent needle wetness, known as Swiss needle cast (SNC). Nonetheless, our study showed P. pluvialis infection in the presence of SNC. Exclusive expression of P. pluvialis is difficult to achieve as both diseases are promoted by high humidity. Here we established a 'dry leaf' strategy to suppress SNC when inoculating Douglas-fir needles for RNC studies. Sheltering plants along with drip irrigation to avoid needle wetness during the P. gaeumannii sporulation period suppressed its development in the new season flush. The diminished endophyte inoculum enabled bias-reduced studies of P. pluvialis impacts on Douglas-fir without the confounding effects of stomatal blockage and premature defoliation caused by P. gaeumannii.
DOI: 10.1094/PDIS-12-16-1738-RE
PubMed: 30682953
Affiliations:
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and New Zealand Forest Research Institute (Scion), Te Papa Tipu Innovation Park, Rotorua 3046, New Zealand.</nlm:affiliation><country xml:lang="fr">Nouvelle-Zélande</country><wicri:regionArea>Institute for Applied Ecology New Zealand, School of Science, Auckland University of Technology, Auckland 1142, New Zealand; and New Zealand Forest Research Institute (Scion), Te Papa Tipu Innovation Park, Rotorua 3046</wicri:regionArea><wicri:noRegion>Rotorua 3046</wicri:noRegion></affiliation></author><author><name sortKey="Bader, Martin Karl Friedrich" sort="Bader, Martin Karl Friedrich" uniqKey="Bader M" first="Martin Karl-Friedrich" last="Bader">Martin Karl-Friedrich Bader</name><affiliation wicri:level="1"><nlm:affiliation>Institute for Applied Ecology New Zealand, School of Science, Auckland University of Technology, Auckland 1142, New Zealand; and New Zealand Forest Research Institute (Scion), Te Papa Tipu Innovation Park, Rotorua 3046, New Zealand.</nlm:affiliation><country xml:lang="fr">Nouvelle-Zélande</country><wicri:regionArea>Institute for Applied Ecology New Zealand, School of Science, Auckland University of Technology, Auckland 1142, New Zealand; 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In 2013, P. pluvialis was described from mixed tanoak-Douglas-fir forests in the Pacific Northwest and concurrently recognized as the main causal agent of red needle cast (RNC) in New Zealand radiata pine plantations. Little is known about its infection cycle and impact on host physiology. P. pluvialis studies in Douglas-fir are challenging due to the ubiquitous presence of the endophyte Phaeocryptopus gaeumannii, which produces similar symptoms and premature defoliation with persistent needle wetness, known as Swiss needle cast (SNC). Nonetheless, our study showed P. pluvialis infection in the presence of SNC. Exclusive expression of P. pluvialis is difficult to achieve as both diseases are promoted by high humidity. Here we established a 'dry leaf' strategy to suppress SNC when inoculating Douglas-fir needles for RNC studies. Sheltering plants along with drip irrigation to avoid needle wetness during the P. gaeumannii sporulation period suppressed its development in the new season flush. The diminished endophyte inoculum enabled bias-reduced studies of P. pluvialis impacts on Douglas-fir without the confounding effects of stomatal blockage and premature defoliation caused by P. gaeumannii.</div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">30682953</PMID><DateRevised><Year>2019</Year><Month>11</Month><Day>20</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0191-2917</ISSN><JournalIssue CitedMedium="Print"><Volume>101</Volume><Issue>7</Issue><PubDate><Year>2017</Year><Month>Jul</Month></PubDate></JournalIssue><Title>Plant disease</Title><ISOAbbreviation>Plant Dis</ISOAbbreviation></Journal><ArticleTitle>Phytophthora pluvialis Studies on Douglas-fir Require Swiss Needle Cast Suppression.</ArticleTitle><Pagination><MedlinePgn>1259-1262</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1094/PDIS-12-16-1738-RE</ELocationID><Abstract><AbstractText>Phytophthora pluvialis is associated with early defoliation and shoot dieback in Douglas-fir in Oregon and New Zealand. In 2013, P. pluvialis was described from mixed tanoak-Douglas-fir forests in the Pacific Northwest and concurrently recognized as the main causal agent of red needle cast (RNC) in New Zealand radiata pine plantations. Little is known about its infection cycle and impact on host physiology. P. pluvialis studies in Douglas-fir are challenging due to the ubiquitous presence of the endophyte Phaeocryptopus gaeumannii, which produces similar symptoms and premature defoliation with persistent needle wetness, known as Swiss needle cast (SNC). Nonetheless, our study showed P. pluvialis infection in the presence of SNC. Exclusive expression of P. pluvialis is difficult to achieve as both diseases are promoted by high humidity. Here we established a 'dry leaf' strategy to suppress SNC when inoculating Douglas-fir needles for RNC studies. Sheltering plants along with drip irrigation to avoid needle wetness during the P. gaeumannii sporulation period suppressed its development in the new season flush. The diminished endophyte inoculum enabled bias-reduced studies of P. pluvialis impacts on Douglas-fir without the confounding effects of stomatal blockage and premature defoliation caused by P. gaeumannii.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Gómez-Gallego</LastName><ForeName>Mireia</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>Institute for Applied Ecology New Zealand, School of Science, Auckland University of Technology, Auckland 1142, New Zealand; and New Zealand Forest Research Institute (Scion), Te Papa Tipu Innovation Park, Rotorua 3046, New Zealand.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Bader</LastName><ForeName>Martin Karl-Friedrich</ForeName><Initials>MK</Initials><AffiliationInfo><Affiliation>Institute for Applied Ecology New Zealand, School of Science, Auckland University of Technology, Auckland 1142, New Zealand; and New Zealand Forest Research Institute (Scion), Te Papa Tipu Innovation Park, Rotorua 3046, New Zealand.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Scott</LastName><ForeName>Peter Matthew</ForeName><Initials>PM</Initials><AffiliationInfo><Affiliation>New Zealand Forest Research Institute (Scion), Te Papa Tipu Innovation Park, Rotorua 3046, New Zealand.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Leuzinger</LastName><ForeName>Sebastian</ForeName><Initials>S</Initials><AffiliationInfo><Affiliation>Institute for Applied Ecology New Zealand, School of Science, Auckland University of Technology, Auckland 1142, New Zealand.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Williams</LastName><ForeName>Nari Michelle</ForeName><Initials>NM</Initials><AffiliationInfo><Affiliation>New Zealand Forest Research Institute (Scion), Te Papa Tipu Innovation Park, Rotorua 3046, New Zealand.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2017</Year><Month>04</Month><Day>21</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Plant Dis</MedlineTA><NlmUniqueID>9882809</NlmUniqueID><ISSNLinking>0191-2917</ISSNLinking></MedlineJournalInfo></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2019</Year><Month>1</Month><Day>27</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2017</Year><Month>7</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2017</Year><Month>7</Month><Day>1</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">30682953</ArticleId><ArticleId IdType="doi">10.1094/PDIS-12-16-1738-RE</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Nouvelle-Zélande</li></country></list><tree><country name="Nouvelle-Zélande"><noRegion><name sortKey="G Mez Gallego, Mireia" sort="G Mez Gallego, Mireia" uniqKey="G Mez Gallego M" first="Mireia" last="G Mez-Gallego">Mireia G Mez-Gallego</name></noRegion><name sortKey="Bader, Martin Karl Friedrich" sort="Bader, Martin Karl Friedrich" uniqKey="Bader M" first="Martin Karl-Friedrich" last="Bader">Martin Karl-Friedrich Bader</name><name sortKey="Leuzinger, Sebastian" sort="Leuzinger, Sebastian" uniqKey="Leuzinger S" first="Sebastian" last="Leuzinger">Sebastian Leuzinger</name><name sortKey="Scott, Peter Matthew" sort="Scott, Peter Matthew" uniqKey="Scott P" first="Peter Matthew" last="Scott">Peter Matthew Scott</name><name sortKey="Williams, Nari Michelle" sort="Williams, Nari Michelle" uniqKey="Williams N" first="Nari Michelle" last="Williams">Nari Michelle Williams</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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