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1990•Indian Journal Of NematologyRequires access

Sequential development of deaminases in resistant and susceptible tomato varieties infested with root-knot nematode, Meloidogyne incognita.

U. N. Mote, D. R. Dasgupta, A.K. Ganguly

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Abstract

Investigations on sequential development of chlorogenic acid (CGA), phenylalanine ammonia-lyase (PAL) and tyrosine ammonia-lyase (TAL) were undertaken in two tomato varieties, viz., ‘Pusa Ruby’ and ‘SL-120’ inoculated with the root-knot nematode, Meloidogyne incognita Varieties Pusa Ruby and SL-120 were observed to be susceptible and resistant respectively to M. incognita. The resistance response of SL-120 to M. incognita was characterized by delayed and reduced larval penetration and retarded life cycle of the nematode which corresponded with cell necrosis and hypersensitive reaction.

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What this paper is about

Investigations on sequential development of chlorogenic acid (CGA), phenylalanine ammonia-lyase (PAL) and tyrosine ammonia-lyase (TAL) were undertaken in two tomato varieties, viz., ‘Pusa Ruby’ and ‘SL-120’ inoculated with the root-knot nematode, Meloidogyne incognita Varieties Pusa Ruby and SL-120 were observed to be susceptible and resistant respectively to M. incognita. The resistance response of SL-120 to M. incognita was characterized by delayed and reduced larval penetration and retarded life cycle of the nematode which corresponded with cell necrosis and hypersensitive reaction.

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Available abstract

Investigations on sequential development of chlorogenic acid (CGA), phenylalanine ammonia-lyase (PAL) and tyrosine ammonia-lyase (TAL) were undertaken in two tomato varieties, viz., ‘Pusa Ruby’ and ‘SL-120’ inoculated with the root-knot nematode, Meloidogyne incognita Varieties Pusa Ruby and SL-120 were observed to be susceptible and resistant respectively to M. incognita. The resistance response of SL-120 to M. incognita was characterized by delayed and reduced larval penetration and retarded life cycle of the nematode which corresponded with cell necrosis and hypersensitive reaction.

Key concepts: Meloidogyne incognita, Biology, Terra incognita, Root-knot nematode, Nematode, Inoculation, Phenylalanine ammonia-lyase, Horticulture

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Sequential development of deaminases in resistant and susceptible tomato varieties infested with root-knot nematode, Meloidogyne incognita. — Research Paper | ScholarLens