cots in the family Commeliaceae. The basic morphology of these plants appears to favor root-knot nematode development in aboveground plant parts. Leaves of both plants develop in the crown near the soil; they are large, 20-30 cm long, and densely arranged so that nematodes on younger leaves are protected from direct solar irradiation. The dense pubescent foliage, especially the convoluted young...

Breeding for improved resistance and tolerance to the clover root-knot nematode, Meloidogyne trifoliophila, and the clover cyst nematode, Heterodera trifolii , has been successful in white c lover, Trifolium repens. White clover lines developed from three independent breeding programmes were established in field trials at Lincoln, Palmerston North, Cambridge and Kerikeri. Plants were establishe...

Background: Chickpea (Cicer arietinum) is one of the most important food legumes grown worldwide. Its cultivation in India hampered considerably due to regular occurrence root knot nematode and reported reduce chickpea yield by 9-40%. Methods: The present study was conducted evaluate some germplasm for resistance against nematode, Meloidogyne incognita. field experiment also management root-kno...

Scanning electron micrographs of the nematode-egg-parasitic fungus Paecilomyces lilacinus infecting eggs of the root-knot nematode Meloidogyne spp. suggested the involvement of lytic enzymes. When grown on a liquid mineral salts medium, supplemented with different substrates as the sole N- and C-source, the fungus produced an extracellular protease. Colloidal chitin, vitellin and intact eggs of...

Plant-parasitic nematodes produce at least one structurally unique class of small helix-rich retinol- and fatty-acid-binding proteins that have no counterparts in their plant hosts. Herein we describe a protein of the plant-parasitic root-knot nematode Meloidogyne javanica, which is a member of the nematode-specific fatty-acid- and retinol-binding (Mj-FAR-1) family of proteins. The mj-far-1 mRN...

The root system is vital for the cotton plant to absorb nutrients and water from the soil and to anchor the plant. Two important soil-borne pathogens of cotton, Meloidogyne incognita (root-knot nematode), and Thielaviopsis basicola can adversely affect root systems resulting in suppressed growth and less efficient water and nutrient uptake and transport. In fields where these pathogens occur to...

Complex defense signaling pathways, controlled by different hormones, are involved in the reaction of plants to a wide range of biotic and abiotic stress factors. We studied the ability of salicylic acid, jasmonate (JA), and ethylene (ET) to induce systemic defense in rice (Oryza sativa) against the root knot nematode Meloidogyne graminicola. Exogenous ET (ethephon) and JA (methyl jasmonate) su...

Root knot nematode, Meloidogyne spp. causes severe yield losses in vegetable crops. Chitosan is one of the most abundant biopolymer available worldwide next to cellulose. It known have anti-nemic, anti-fungal and anti- bacterial properties. Application chitosan induces systemic resistance tomato plants against pathogens by increasing phenolic content antioxidant enzymes viz., Polyphenol oxidase...

root-knot nematodes ( meloidogyne spp.) are important group of plant pathogens that have extensive hosting range and are caused for significant damage to agricultural products annually. various management strategies of control on nematodes has been used, but the application of plant products is one of the promising methods for nematode control. in this study, inhibitory effect of essential oils...