Involvement of salicylic acid in induction of nematode resistance in plants |
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| Authors: | S V Zinovieva N I Vasyukova Zh V Udalova N G Gerasimova O L Ozeretskovskaya |
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| Institution: | 1. Center of Parasitology, Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, 119071, Russia
2. Bach Institute of Biochemistry, Russian Academy of Sciences, Moscow, 119071, Russia
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| Abstract: | The role of salicylic acid (SA) as a possible signaling component in the case of the infection of plants with nematodes has
been studied using a model system consisting of the tomato (Lycopersicon esculentum (Mill.) and race 1 of the gall eelworm Meloidogyne incognita (Kofoid and White, 1919; Chitwood, 1949). The preplanting SA treatment of tomato seeds results in an increased nematode resistance
of susceptible tomato cultivars; the protective effect is higher in the case of SA combined with chitosan, a biogenic elicitor
of plant resistance. The studied preparations stimulate the growth and development of the plants. The increase in the resistance
of tomato plants is related to the increased activity of phenylalanine ammonia-lyase and an increased SA content in plant
tissues infected with nematodes; both these factors significantly influence nematode development. |
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