Role of Jasmonate in Modulation of Mycorrhizae-Induced Resistance Against Fungal Pathogens
Aswathy Nair1, H V Thulasiram2, Sujata Bhargava3
1Botany Department, Savitribai Phule Pune University, Pune, India.
Abstract:
Symbiotic association of plants with arbuscular mycorrhizal (AM) fungi brings about changes in levels of the phytohormone jasmonate (JA) in root and shoot tissues of a plant. The enhanced JA levels not only play a role in controlling the extent of AM colonization but are also involved in the expression of mycorrhizal-induced resistance (MIR) against pathogens. We describe a method used to study the levels of a volatile jasmonate derivative, methyl jasmonate (MeJA), in tomato plants colonized by AM fungi and in response to subsequent attack by the foliar pathogen Alternaria alternata.
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