What is plant pathogenic nematode?

Nematodes that feed on plant parts are called plant parasitic nematodes (PPN) and are ubiquitous in agricultural soils. The life cycle of a nematode includes eggs, juveniles and adults, and they can overwinter at any of these stages.

How do you identify nematodes in plants?

Important morphological identification characters in nematodes include shape of head, number of annules, body length, length of stylet, shape of stylet knob, structure of lateral fields, presence/absence and shape of spermatheca, shape of female tail terminus, shape and length of spicule and gubernaculum [26].

What unique characteristic do plant pathogenic nematodes possess that allows their identification from other nematodes?

Plant parasitic nematodes possess all of the major organ systems of higher animals except respiratory and circulatory systems. The body is covered by a transparent cuticle, which bears surface marks helpful for identifying nematode species.

How did the root knot nematode get its name?

Root‐knot nematodes are obligate plant parasites that are distributed worldwide. The genus consists of 98 species (as of February 2013) and they parasitize almost every species of vascular plant. Their vernacular name comes from the galls (root‐knots) induced by Meloidogyne on the roots of their host plant (Fig. 2 ).

What are the symptoms and characteristics of nematodes?

Symptoms Caused by Nematodes 3. Mechanism of Nematode Injury to Plants 4. Interrelationship between Nematodes and Other Plant Pathogens 5. Ecology and Spread 6. Characteristics 7. Life Cycle. 1. Introduction to Nematodes: Nematodes are the most highly developed of the pseudo-coelomates.

Can a nematode be identified by a compound microscope?

The common plant-parasitic nematode genera are fairly easy to identify to that level using a standard compound microscope. Identification of nematodes to the species level often requires detailed morphological analysis, growth of the nematode on different host plants, or DNA or isozyme analysis.

What kind of nematode feeds on plant parts?

Nematodes that feed on plant parts are called plant parasitic nematodes (PPN) and are ubiquitous in agricultural soils. The life cycle of a nematode includes eggs, juveniles and adults, and they can overwinter at any of these stages.