TopDB

Disease

Root Knot :

Disease ID : ToPDB_DD035

Summary :

Introduction : Root knot disease is a soil borne disease caused by nematodes and active in hot climates. About 2000 plants are susceptible to infection by this disease , causes 5% of global crop loss.

Pathogen cause : Meloidogyne incognita , Meloidogyne javanica

Host distribution : Lycopersicon esculentum, Abelmoschus esculentus, Carya illinoensis, Colocasia esculenta

Sign and Symptoms:

Plants stunted, wilted, and yellow; nodules on roots.

Etiology:

Root-knot nematode produces small, discrete galls while the southern and javanese root-knot nematodes produce large galls and massive root swellings. Infected plants are stunted, appear yellow or pale green in color, and wilt easily, even when soil moisture is adequate. Severe infestations can dramatically reduce yields and eventually kill plants.

Gene(s) Resposible for Disease:

Gene ID :

Control:

Biocontrol: Trichoderma harzianum BI

Chemical control: Salicylic acid

Bibliography :

Biological control of Meloidogyne javanica by Trichoderma harzianum BI and salicylic acid on Tomato , Naserinasab F., Sahebani N. and Etebarian H.R. , African Journal of Food Science , 2011 , 5(3): 276 - 28.

Biological Control of Root-Knot Nematode(Meloidogyne spp.): Microbes against the Pests., Lamovsek J., Urek G.and Traden S. , Communication in Agriculture Applied Biological Sciences., 2009, 74(3)74(3):731-9. PMID: 20222546 .

Biocontrol of Meloidogyne incognita on tomato using antagonistic fungi, plant-growth-promoting rhizobacteria and cattle manure, Siddiqu A. and Futai K. , Pest Management Science , 2009 , 65(9):943-8. PMID: 19431151.

Effect of Entomopathogenic Nematodes (Rhabditida: Steinernematidae and Heterorhabditidae) on Meloidogyne mayaguensis Rammah and Hirschmann (Tylenchida: Meloidoginidae) Infection in Tomato Plants , Molina J.P., Dolinski C., and Lewis E.E , Journal of Nematology , 2007 ,39(4): 338–342. PMCID: PMC2586509.