Pyracantha 'Mohave' Fruit Infection by Phytophthora ramorum and Transmission of the Pathogen from Infected Fruit to Roots of Viburnum tinus.
Identifieur interne : 000B44 ( Main/Exploration ); précédent : 000B43; suivant : 000B45Pyracantha 'Mohave' Fruit Infection by Phytophthora ramorum and Transmission of the Pathogen from Infected Fruit to Roots of Viburnum tinus.
Auteurs : Paul W. Tooley [États-Unis] ; Marsha Browning [États-Unis] ; Nina Shishkoff [États-Unis]Source :
- Plant disease [ 0191-2917 ] ; 2016.
Abstract
Colonization of the fleshy fruit of Cornus florida, C. kousa, Laurus nobilis, Malus hupehensis, and Pyracantha 'Mohave' was observed following inoculation with sporangia of Phytophthora ramorum. However, abundant production of chlamydospores was only observed in the fruit of Pyracantha 'Mohave'. Pyracantha 'Mohave' fruit that had been inoculated with a P. ramorum sporangia suspension were placed in pots containing rooted cuttings of Viburnum tinus in a misting tent or in water-filled trays in a climate-controlled greenhouse. Runoff was collected for 24 to 30 days, and roots were plated after the final collection. Mean percent recovery from infected roots was not significantly different (P = 0.05, Tukey's test) between bottom-watered treatments in trays and misted treatments, averaging 58% for bottom-watered and 54% for mist treatments. The number of CFU collected in runoff from bottom-watered plants was consistently lower than that obtained from plants held under mist, likely due to desiccation of the fruit. The results show that root infection of V. tinus can occur by P. ramorum via infected fruit of Pyracantha 'Mohave'. This phenomenon represents a pathway of infection for P. ramorum not previously reported, which may play a role in disease epidemiology.
DOI: 10.1094/PDIS-03-15-0369-RE
PubMed: 30688592
Affiliations:
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Detrick, MD 21702.</nlm:affiliation><country xml:lang="fr">États-Unis</country><placeName><region type="state">Maryland</region></placeName><wicri:cityArea>United States Department of Agriculture-Agricultural Research Service Foreign Disease-Weed Science Research Unit, Ft. Detrick</wicri:cityArea></affiliation></author><author><name sortKey="Shishkoff, Nina" sort="Shishkoff, Nina" uniqKey="Shishkoff N" first="Nina" last="Shishkoff">Nina Shishkoff</name><affiliation wicri:level="2"><nlm:affiliation>United States Department of Agriculture-Agricultural Research Service Foreign Disease-Weed Science Research Unit, Ft. Detrick, MD 21702.</nlm:affiliation><country xml:lang="fr">États-Unis</country><placeName><region type="state">Maryland</region></placeName><wicri:cityArea>United States Department of Agriculture-Agricultural Research Service Foreign Disease-Weed Science Research Unit, Ft. Detrick</wicri:cityArea></affiliation></author></analytic><series><title level="j">Plant disease</title><idno type="ISSN">0191-2917</idno><imprint><date when="2016" type="published">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Colonization of the fleshy fruit of Cornus florida, C. kousa, Laurus nobilis, Malus hupehensis, and Pyracantha 'Mohave' was observed following inoculation with sporangia of Phytophthora ramorum. However, abundant production of chlamydospores was only observed in the fruit of Pyracantha 'Mohave'. Pyracantha 'Mohave' fruit that had been inoculated with a P. ramorum sporangia suspension were placed in pots containing rooted cuttings of Viburnum tinus in a misting tent or in water-filled trays in a climate-controlled greenhouse. Runoff was collected for 24 to 30 days, and roots were plated after the final collection. Mean percent recovery from infected roots was not significantly different (P = 0.05, Tukey's test) between bottom-watered treatments in trays and misted treatments, averaging 58% for bottom-watered and 54% for mist treatments. The number of CFU collected in runoff from bottom-watered plants was consistently lower than that obtained from plants held under mist, likely due to desiccation of the fruit. The results show that root infection of V. tinus can occur by P. ramorum via infected fruit of Pyracantha 'Mohave'. This phenomenon represents a pathway of infection for P. ramorum not previously reported, which may play a role in disease epidemiology.</div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">30688592</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>100</Volume><Issue>3</Issue><PubDate><Year>2016</Year><Month>Mar</Month></PubDate></JournalIssue><Title>Plant disease</Title><ISOAbbreviation>Plant Dis</ISOAbbreviation></Journal><ArticleTitle>Pyracantha 'Mohave' Fruit Infection by Phytophthora ramorum and Transmission of the Pathogen from Infected Fruit to Roots of Viburnum tinus.</ArticleTitle><Pagination><MedlinePgn>555-560</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1094/PDIS-03-15-0369-RE</ELocationID><Abstract><AbstractText>Colonization of the fleshy fruit of Cornus florida, C. kousa, Laurus nobilis, Malus hupehensis, and Pyracantha 'Mohave' was observed following inoculation with sporangia of Phytophthora ramorum. However, abundant production of chlamydospores was only observed in the fruit of Pyracantha 'Mohave'. Pyracantha 'Mohave' fruit that had been inoculated with a P. ramorum sporangia suspension were placed in pots containing rooted cuttings of Viburnum tinus in a misting tent or in water-filled trays in a climate-controlled greenhouse. Runoff was collected for 24 to 30 days, and roots were plated after the final collection. Mean percent recovery from infected roots was not significantly different (P = 0.05, Tukey's test) between bottom-watered treatments in trays and misted treatments, averaging 58% for bottom-watered and 54% for mist treatments. The number of CFU collected in runoff from bottom-watered plants was consistently lower than that obtained from plants held under mist, likely due to desiccation of the fruit. The results show that root infection of V. tinus can occur by P. ramorum via infected fruit of Pyracantha 'Mohave'. 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Tooley</name></region><name sortKey="Browning, Marsha" sort="Browning, Marsha" uniqKey="Browning M" first="Marsha" last="Browning">Marsha Browning</name><name sortKey="Shishkoff, Nina" sort="Shishkoff, Nina" uniqKey="Shishkoff N" first="Nina" last="Shishkoff">Nina Shishkoff</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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