Plant Parasitic Nematodes

            Plant parasitic nematodes are considered one of the greatest threats to plants throughout the world. Nematodes have been found to attack almost every part of the plant, including roots, stems, leaves, fruits and seeds, alone or in combination with other soil microorganisms. Although worldwide recognition of nematodes as an important cause of unintentional plant diseases emerged only in the middle of this century, nematodes were examined more than 100 years before. Main plant parasitic nematodes are very important economically. The Association of Plant Nematodes has led to the development of specific food structures and secretory products that are involved in host infections and nutrient uptake. Plant parasitic nematodes specialize in the dorsal stiletto, subventral, and esophagus, which are considered the most important evolutionary adaptations to plant parasitism. Plant parasitic nematodes use concave forces, such as needles, convex to examine plant tissue and release a series of protein secretions from the subventral and dorsal glands, which include the integrity of host cells and allow entry of nematodes.   

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