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Investigation-Research: Molecular and Morphological Analysis of Isolates of Pratylenchus coffeae and Closely Related Species
Morphological and genome variation between 32 nematode isolates identified originally as Pratylenchus coffeae, P. gutierrezi, P. loosi, and P. pseudocoffeae were characterized to estimate…
Improved nematode extraction from carrot disk culture.
A protocol is presented to extract large quantities of viable burrowing nematodes and their eggs from carrot disk cultures by flotation with MgSO-7H0 (sp gr 1).
Observations onColeoscirus simplex (Acarina: Prostigmata), a predatory mite that colonizes greenhouse cultures of rootknot nematode (Meloidogyne spp.), and a review of feeding behavior in the…
This is the first report of nematophagy in a cunaxid mite, and feeding relationships were complex, size, degree of sclerotization, speed, and availability of alternative prey influenced predatory success.
Aggressiveness and Damage Potential of Central American and Caribbean Populations of Radopholus spp. in Banana.
- D. Marín, K. Barker, D. Kaplan, T. B. Sutton, C. Opperman
- Medicine, BiologyJournal of nematology
- 15 December 1999
Variation in aggressiveness among nematode populations followed a similar trend in the two susceptible hosts tested, Grande Naine and Pisang mas, and their reproductive fitness was generally related to damage reported in the field.
Phylogenetic Analysis of Geographically Diverse Radopholus similis via rDNA Sequence Reveals a Monomorphic Motif.
The data presented herein support the concept that R. similis is comprised of two pathotypes-one that parasitizes citrus and one that does not, and substantiates previous observations that the R. Similis genome is highly conserved across geographic regions.
A comparison of techniques for extraction and study of anhydrobiotic nematodes from dry soils.
Anhydrobiotic nematodes were fixed and extracted from dry Mojave desert soils with hot and cold fixatives and did not coil when placed in hot orcold fixatives or in any concentration of KCI, ethylene glycol, or sucrose.
Mechanisms conferring plant incompatibility to nematodes.
Approval of incompatibility mechanisms to nematodes requires additional testing of the hypotheses, especially as to the existence of such mechanisms at the localized site where and when incompatibility is expressed.
Association of glyceollin with the incompatible response of soybean roots to Meloidogyne incognita
Radopholus citrophilus sp. n (Nematoda), a sibling species of Radopholus similis
A new species of Radopholus similis, the first true sibling species to be described among the plant parasiti c nematodes, which reproduces amphimicticall y and occasionall y parthenogenetic all y and has a chromosome number of 5.
Reproductive Strategies and Karyotype of the Burrowing Nematode, Radopholus similis.
Radopholus can reproduce as a hermaphrodite when amphigony does not occur and the gonad is actually an ovatestis, and reproduction did not involve parthenogenesis.