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Creator:: Sontirat, Suebsak
Abstract:: Relationships of six species of saprozoic nematodes, Pristionchus lheriteiri (Maupas, 1919) Paramonov; Panagrolaimus subelongatus (Cobb, 1914) Thorne, 1937; Cephalobus persegnis Bastian 1865; Pelodera (Rhabditis) lambdiensis (Maupas, 1919) Dougherty, 1953; Rhabditis sp. I and Pelodera chitwoodi (Bassen, 1940) Dougherty, 1955 and a nitrogen-fixing bacterium, Rhizobium japonicum (Kirchner, 1895) Buchanan, 1926 were...
Resource Type:: Dissertation
Full Text:: papers, dealing mostly with nematode-fungus interactions, are developing a new branch of plant

Creator:: Yorston, John McKay
Abstract:: The root-lesion nematode, Pratylenchus penetrans (Cobb 1917). Filipjev and Shuurmans Stekhoven, 1941, is widely distributed throughout Oregon and other temperate zones of the world. Economically it is probably the most important plant parasitic nematode in Oregon because of its abundance, wide host range of economic plants and interactions with other...
Resource Type:: Dissertation

Creator:: Merrifield, Kathryn J.
Abstract:: The efficiencies of wet sieving/sucrose centrifugation (WS/SC) recovery of Pratylenchus penetrans (59 %), Paratylenchus sp., (80 %), and Criconemella xenoplax (66 %) were established. Baermann funnels (BF) recovered significantly more P. penetrans (p = 0.01) and significantly less (p = 0.01) C. xenoplax than did WS/SC. While densities of P....
Resource Type:: Masters Thesis
Full Text:: nematode population pressure on the plant growing in that volume of soil. Therefore, endoparasitic

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