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dc.contributor.authorCastillo, Pablo-
dc.contributor.authorVovlas, Nicola-
dc.contributor.authorAzpilicueta, Andrea-
dc.contributor.authorLanda, Blanca B.-
dc.contributor.authorJiménez-Díaz, Rafael M.-
dc.date.accessioned2009-02-26T10:29:58Z-
dc.date.available2009-02-26T10:29:58Z-
dc.date.issued2007-01-
dc.identifier.citationPlant Disease; Volume 91, Number 1, Pages 71-79en_US
dc.identifier.issn0191-2917-
dc.identifier.urihttp://hdl.handle.net/10261/11026-
dc.description.abstractStunted growth of fall-sown sugar beets (Beta vulgaris) associated with high incidence of crownroot infections and large soil infestations by Ditylenchus dipsaci were observed at the end of the crop growing season in southern Spain by early June 2005. The largest proportion (75%) of the nematode life-stages in plant and soil was the fourth-stage juvenile. The large number (up to 3,750 nematodes per gram of fresh tissue) of D. dipsaci individuals and severe anatomical alterations observed in storage sugar beet roots suggest that the stem and bulb nematode is the causal agent of the impaired growth of sugar beets observed in commercial fields. Observed morphological traits of nematode specimens and results of specific polymerase chain reaction (PCR) and phylogenetic analyses confirmed that the population of D. dipsaci infecting sugar beet belongs to the normal (nongiant) biological type of the nematode. Results of host-range bioassays indicated that the population of D. dipsaci infecting sugar beet in southern Spain reproduces on pea (including seeds and pods), onion, potato, spinach, and tomato, but not on bean, cotton, maize, and tobacco. These results indicate that D. dipsaci may be an important constraint for sugar beet crops in the affected area, but also for other important crops commonly used in rotation with them.en_US
dc.format.extent4085 bytes-
dc.format.mimetypeimage/gif-
dc.language.isoengen_US
dc.publisherAmerican Phytopathological Societyen_US
dc.rightsclosedAccessen_US
dc.subjectEmerging diseaseen_US
dc.subjectHistopathologyen_US
dc.subjectPhenotypic and molecular diagnosisen_US
dc.titleHost-parasite relationships in fall-sown sugar beets infected by the stem and bulb nematode, Ditylenchus dipsacien_US
dc.typeartículoen_US
dc.identifier.doi10.1094/PD-91-0071-
dc.description.peerreviewedPeer revieweden_US
dc.relation.publisherversionhttp://dx.doi.org/10.1094/PD-91-0071en_US
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