Role of stress phytohormones in formation of plant immune response on penetration of parasitic nematodes

ROLE OF STRESS PHYTOHORMONES IN FORMATION OF PLANT IMMUNE RESPONSE ON PENETRATION OF PARASITIC NEMATODES

Udalova Zh.V., Zinovjeva S.V.
All-Russian K.I. Skryabin Scientific Research Institute of Fundamental and Applied Parasitology of Animals and Plants,
Centre of Parasitology of A.N. Severtsov Institute of Ecology and Evolution of RAS.

Summary

Stress hormones jasmonic acid (JA) and salicylic acid (SA) play a key role in immune response of plants infected by various pathogens. Analysis of the activity of proteinase inhibitors (PI) being a marker of systemic induced resistance in various organs of the tomato plant when processing by  JA and SA has been done. It  has been shown that the highest activity in the leaves of PI during infection root-knot nematode Meloidogyne incognita is observed in the processing of JA. On the other hand SA and its combination with JA reduce the activity of inhibitors in the roots of infected plants what may be associated with an increase of the resistance of plants and less penetration of nematodes in the roots.

© 2015 The Author(s). Published by All-Russian Scientific Research Institute of Fundamental and Applied Parasitology of Animals and Plants named after K.I. Skryabin.
This is an open access article under the Agreement of 02.07.2014 (Russian Science Citation Index (RSCI) and the Agreement of 12.06.2014 (CABI.org / Human Sciences section).