title: Mi-1 gene expression in tomato plants under root-knot nematode invasion and treatment with salicylic acid.
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.
authors.affiliation: Institute of Biology, Karelian Research Center, Russian Academy of Sciences, st. Pushkinskaya 11, Petrozavodsk, Republic of Karelia, 185910, Russia.
authors.forename: V V
authors.initials: VV
authors.lastname: Lavrova
authors.affiliation: Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninskii pr. 33, Moscow, 119071, Russia.
authors.forename: Zh V
authors.initials: ZV
authors.lastname: Udalova
authors.affiliation: Institute of Biology, Karelian Research Center, Russian Academy of Sciences, st. Pushkinskaya 11, Petrozavodsk, Republic of Karelia, 185910, Russia.
authors.forename: E M
authors.initials: EM
authors.lastname: Matveeva
authors.affiliation: Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninskii pr. 33, Moscow, 119071, Russia.|Institute of Gene Biology, Russian Academy of Sciences, st. Vavilova 34/5, Moscow, 119334, Russia.
authors.forename: F K
authors.initials: FK
authors.lastname: Khasanov
authors.affiliation: Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninskii pr. 33, Moscow, 119071, Russia. zinovievas@mail.ru.
authors.forename: S V
authors.initials: SV
authors.lastname: Zinovieva
mesh_terms: D000818:Animals; D000969:Antinematodal Agents / Q000494:pharmacology; D060467:Disease Resistance; D015870:Gene Expression / Q000187:drug effects; D017343:Genes, Plant; D018551:Solanum lycopersicum / Q000235:genetics* / Q000469:parasitology*; D010935:Plant Diseases / Q000235:genetics / Q000469:parasitology / Q000628:therapy*; D010940:Plant Proteins / Q000235:genetics / Q000378:metabolism*; D018517:Plant Roots / Q000187:drug effects / Q000378:metabolism / Q000469:parasitology; D020156:Salicylic Acid / Q000494:pharmacology*; D013997:Time Factors; D014431:Tylenchoidea / Q000472:pathogenicity*
chemical_list: D000969:Antinematodal Agents; D010940:Plant Proteins; D020156:Salicylic Acid