Tomaszewski, E.K. and Khalil, M.A. and El-Deeb, A.A. and Powers, T.O. and Starr, J.L. (1994) Meloidogyne javanica Parasitic on Peanut. Journal of Nematology, 26 (4). pp. 436-441.
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Abstract
Peanut fields in four governorates of Egypt were surveyed to identify species of Meloidogyne present. Fourteen populations obtained from peanut roots were all identified as M. javanica based on perineal patterns, stylet and body lengths of second-stage juveniles, esterase phenotypes, and restriction fragment length polymorphisms of mtDNA. Three of 14 populations, all from contiguous fields in the Behara governorate, had individuals with a unique two-isozyme esterase phenotype. All populations of M. javanica tested on peanut had levels of reproduction on the M. arenaria-susceptible peanut cultivar Florunner that were not different from M. arenaria (P = 0.05), and had lower levels of reproduction on the M. arenaria-resistant genotype TxAG-7 than on Florunner (P = 0.05). Reproduction of the five Egyptian populations of M. javanica tested was lower on root-knot nematode resistant tomato cultivars Better Boy and Celebrity than on the root-knot nematode susceptible cultivar Rutgers (P = 0.05). These data are evidence that some populations of M. javanica are parasitic on peanut and that the peanut and tomato genotypes resistant to M. arenaria are also resistant to these populations of M. javanica
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Arachis hypogaea, Egypt, Lycopersicon esculentum, Meloidogyne arenaria, Meloidogyne javanica, RFLP, esterase isozyme phenotype, host resistance, nematode, peanut, restriction fragment length polymorphism, root-knot nematode, tomato |
| Author Affiliation: | Department of plant pathology and microbiology, Taxas A&M University, Collage Station, TX 77843 |
| Subjects: | Plant Protection |
| Divisions: | Groundnut |
| Depositing User: | Mr B Krishnamurthy |
| Date Deposited: | 21 Jul 2013 12:40 |
| Last Modified: | 21 Jul 2013 12:40 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/11151 |
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