Meloidogyne javanica
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The document is a report on the root-knot nematode Meloidogyne javanica submitted by Kumar Suman. It includes sections on the taxonomy, hosts, symptoms, life cycle, and infected plants of M. javanica. M. javanica is a nematode pathogen that infects over 770 plant species including economically important crops like tea, grapevine, fruits, cereals, and ornamentals. Its symptoms include abnormal leaf color, wilting leaves, swollen roots, reduced root systems, and dwarfing. It is an obligate endoparasite that enters plant roots and establishes feeding sites, inducing root galls. Its life cycle involves infective juveniles hatching from eggs and developing into adults
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- 1. NAME : KUMAR SUMAN ROLL NO: M-PATH-00746-BAC- 2020/2021 COURSE CODE : PL PATH 504 Course TITLE : Principle of plant pathology SUBMITTED TO: Dr. Sri nivas raghavan SIR (Dept of plant pathology )
- 3. TAXONOMY HOSTS SYMPTOMS LIFE CYCLE INFECTED PLANTS REFRENCES
- 4. Kingdom: Animalia Phylum: Nematoda Order: Tylenchida Family: Heteroderidae Genus : Meloidogyne Species: M. javanica
- 5. Meloidogyne javanica is a nematode pathogen which infects over 770 species of plants. The host of these pathogen includes crops of highly economic value. The host range includes tea, grapevine, fruit tree, cereals , ornamentals, bell pepper, capsicum and ornamentals. they severely affect the major agricultural crops.
- 6. Abnormal leaf colour Wilting leaf galls Swollen roots Reduced root system Dwarfing
- 7. All root-knot nematodes are obligate sedentary endoparasites of plant roots and tubers. they enter the root and establish a feeding site from which they do not move. They induce small or large root swellings called root- knots or galls. Their infective second-stage juveniles (J2) hatch from the eggs in the soil and penetrate the tip of a suitable root where they develop into sedentary and swollen juveniles and adult females .Males are wormlike, not parasitic and exit the root when they reach adulthood in search of suitable females to mate with. All root-knot nematodes induce formation of specialized trophic sites (feeding sites) called giant cells that provide essential nutrients for their development and egg production.
- 8. . Life cycle of the root-knot nematode Meloidogyne spp
- 11. THANK YOU