Activity of fungal culture ltrates against soybean cyst nematode and root-knot nematode egg hatch and juvenile motility
نویسندگان
چکیده
Susan L.F. MEYER 1; , Robin N. HUETTEL 1;†, Xing Zhong LIU 2, Richard A. HUMBER 3, Jean JUBA 4 and James K. NITAO 1;‡ 1USDA, ARS Nematology Lab, Bldg 011A, Rm 165B, BARC-West, 10300 Baltimore Avenue, Beltsville, MD 20705-2350,USA 2Systematic Mycology and LichenologyLaboratory, Institute of Microbiology, Chinese Academy of Sciences, P.O. Box 2714, Beijing 100080, China 3USDA, ARS Plant Protection Research Unit, US Plant, Soil and Nutrition Laboratory, Tower Road, Ithaca, NY 14853-2901,USA 4Fusarium Research Center, Department of Plant Pathology, 216 Buckhout Laboratory, Pennsylvania State University, University Park, PA 16802, USA
منابع مشابه
In-vitro Assays of Meloidogyne incognita and Heterodera glycines for Detection of Nematode-antagonistic Fungal Compounds.
In-vitro methods were developed to test fungi for production of metabolites affecting nematode egg hatch and mobility of second-stage juveniles. Separate assays were developed for two nematodes: root-knot nematode (Meloidogyne incognita) and soybean cyst nematode (Heterodera glycines). For egg hatch to be successfully assayed, eggs must first be surface-disinfested to avoid the confounding effe...
متن کاملNEMATODE-ANTAGONISTIC TRICHOTHECENES FROM Fusarium equiseti1
A strain of the fungus Fusarium equiseti isolated from soybean cyst nematode secretes nematode-antagonistic compounds. Bioassay-guided fractionation of an extract of the culture broth was undertaken to identify the compounds. Fractions were assayed for activity against a root-knot nematode (Meloidogyne incognita), a plant pathogen that attacks the roots of numerous plant species. Two trichothec...
متن کاملThe Effects of Paecilomyces lilacinus on the Pathogenesis of Meloidogyne Javanica and Tomato Plant Growth Parameters
The present study is based on the investigation of a soil hyphomyces, Paecilomyces lilacinus, an opportunistic bio-control agent, in controlling root-knot nematode Meloidogyne javanica on tomato in greenhouse conditions. P. lilacinus, effectively promoted the growth of plants inoculated with M. javanica by suppressing its pathogenesis as root galling by the nematode and egg mass production was ...
متن کاملDose-response effects of clove oil from Syzygium aromaticum on the root-knot nematode Meloidogyne incognita.
BACKGROUND Clove oil, derived from the plant Syzygium aromaticum (L.) Merr. & Perry, is active against various organisms, and was prepared in a soy lecithin/detergent formulation to determine concentrations active against the root-knot nematode Meloidogyne incognita (Kofoid and White) Chitwood. RESULTS In microwell assays, the mean effective clove oil concentration that reduced egg hatch by 5...
متن کاملResistance to Root-knot, Reniform, and Soybean Cyst Nematodes in Selected Soybean Breeding Lines.
Soybean breeding lines and reported sources of nematode resistance were evaluated in repeated greenhouse tests for resistance to North Carolina populations of the soybean cyst nematode Heterodera glycines, reniform nematode Rotylenchulus reniformis, and the root-knot nematode species Meloidogyne incognita, M. arenaria, and M. arenaria. Lines from the soybean breeding program in Missouri that ha...
متن کامل