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Natural infection of sweet cherry trees with apple scar skin viroid

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dc.contributor.author Kaponi, MS en
dc.contributor.author Sano, T en
dc.contributor.author Kyriakopoulou, PE en
dc.date.accessioned 2014-06-06T06:52:42Z
dc.date.available 2014-06-06T06:52:42Z
dc.date.issued 2013 en
dc.identifier.issn 11254653 en
dc.identifier.uri http://62.217.125.90/xmlui/handle/123456789/6136
dc.relation.uri http://www.scopus.com/inward/record.url?eid=2-s2.0-84883144436&partnerID=40&md5=d2ea95118c2d30f2a532b0b14f75bd73 en
dc.subject ASSVd en
dc.subject Graft transmission en
dc.subject Greece en
dc.subject Sequence analysis en
dc.subject Sweet cherry en
dc.subject Tissue print hybridization en
dc.title Natural infection of sweet cherry trees with apple scar skin viroid en
heal.type journalArticle en
heal.publicationDate 2013 en
heal.abstract Apple scar skin viroid (ASSVd) is a fruit-damaging pathogen that causes significant economic losses to pome fruit trees. In the context of a survey on fruit tree viroids in Greece, ASSVd was initially detected by RTPCR in two sweet cherry trees of cv. Tragana Edessis in an apple orchard in Florina (Macedonia, Greece). This finding was confirmed by direct viroid sequencing of the amplified RT-PCR products. In order to verify this finding, we further examined four sweet cherry trees cvs Tragana Edessis and Biggareau Burlat, two sweet cherry trees of undetermined cultivar, and fifteen neighboring apple trees in the same orchard for possible infection with ASSVd. The viroid assay was done by tissue print hybridization using an ASSVd-specific DIG-labeled probe at stringent hybridization conditions and by RTPCR using two different ASSVd-specific primer pairs. ASSVd was detected in the six sweet cherry trees, including symptomatic samples, but not in any of the 15 apple trees. Purified ASSVd-positive RT-PCR product s from sweet cherries were sequenced either directly or after cloning into pGEM-T or pCR II plasmid vectors. Sixteen ASSVd sequences obtained from five trees were 327-340 nucleotide long and shared 96-99% identity with ASSVd isolates from Indian apples. There was no cherry-specific nucleotide changes in the ASSVd sequences obtained. The viroid was graft transmitted successfully from cherry trees to cherry rootstocks and the newly developed rootstock leaves were ASSVd-positive by RT-PCR. To our knowledge, this is the first molecular and biological analyses of ASSVd infecting sweet cherry trees. en
heal.journalName Journal of Plant Pathology en
dc.identifier.issue 2 en
dc.identifier.volume 95 en
dc.identifier.spage 429 en
dc.identifier.epage 433 en


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