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Differential responses of resistant and susceptible groundnut genotypes at cellular level to Ditylenchus africanus

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dc.contributor.author Jordaan, Anine
dc.contributor.author Steenkamp, Sonia
dc.contributor.author McDonald, Alexander Henrique
dc.contributor.author De Waele, Dirk Gaby Marthe Albert
dc.date.accessioned 2012-11-13T09:24:04Z
dc.date.available 2012-11-13T09:24:04Z
dc.date.issued 2011
dc.identifier.citation Steenkamp, S. et al. 2011. Differential responses of resistant and susceptible groundnut genotypes at cellular level to Ditylenchus africanus. Nematology, 13(2):177-183. [http://www.ingentaconnect.com/content/brill/nemy] en_US
dc.identifier.issn 1388-5545
dc.identifier.issn 1568-5411 (Online)
dc.identifier.uri http://hdl.handle.net/10394/7750
dc.description.abstract Ditylenchus africanus causes cellular breakdown in pod tissue of susceptible groundnut cultivars. The histopathology of this nematode on a resistant genotype was studied using light microscopy and compared with the histopathology of D. africanus on a susceptible genotype. Plants of breeding line PC254K1 and cv. Sellie were propagated in a glasshouse, inoculated with D. africanus at inoculum levels of 2000, 5000 and 7000 nematodes per plant and the pods were collected at 90, 120 and 150 days after planting. In contrast to the susceptible genotype, only a small number of nematodes were observed in restricted areas of the pod tissue of the resistant genotype. Furthermore, the resistant genotype showed neither external symptoms nor cellular breakdown in reaction to D. africanus. According to results of this study, the mechanism of resistance involved may be the inhibition of proper development, migration and reproduction of this nematode, thus preventing it building up to damaging population levels. en_US
dc.description.uri http://dx.doi.org/10.1163/138855410X508723
dc.description.uri http://booksandjournals.brillonline.com/content/10.1163/138855410x508723
dc.language.iso en en_US
dc.publisher Brill Academy Publishers en_US
dc.subject Arachis hypogaea en_US
dc.subject histopathology en_US
dc.subject host response en_US
dc.subject mechanism of resistance en_US
dc.subject nematode damage en_US
dc.subject resistance en_US
dc.title Differential responses of resistant and susceptible groundnut genotypes at cellular level to Ditylenchus africanus en_US
dc.type Article en_US


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