학술논문
Mi-1 gene expression in tomato plants under root-knot nematode invasion and treatment with salicylic acid.
Document Type
Article
Author
Source
Subject
*HOMOLOGOUS chromosomes
*PLANT-pathogen relationships & genetics
*TOMATO farming
*NEMATODE infections
*SALICYLIC acid
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Language
ISSN
1607-6729
Abstract
The dynamics of expression of two homologous genes Mi-1.1 and Mi-1.2 in the roots of resistant and susceptible tomato plants in non-invasion conditions and during invasion with the root-knot nematode M. incognita was studied. Nematode invasion was accompanied by a significant increase in the expression level of both genes; however, the accumulation of transcripts at the early stages of nematode invasion in the penetration of nematode juveniles to the roots was observed only in plants that contained the Mi-1.2 gene, which explains the resistance of tomatoes to this root-knot nematode, caused by only this gene. We reveal a change in the Mi-1 gene activity under exogenous salicylic acid treatment, which contributed to the formation of induced resistance to root-knot nematode in the susceptible plants. [ABSTRACT FROM AUTHOR]