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Biosynthesis of phytoalexin in carrot root requires ethylene action
Author(s) -
Fan Xuetong,
Mattheis James P.,
Roberts Rodney G.
Publication year - 2000
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.2000.1100404.x
Subject(s) - phytoalexin , daucus carota , ethylene , methyl jasmonate , 1 methylcyclopropene , chemistry , biosynthesis , jasmonate , solanaceae , botany , biology , biochemistry , arabidopsis , resveratrol , gene , catalysis , mutant
The role of ethylene in phytoalexin production by carrot ( Daucus carota L.) roots was investigated using the ethylene action inhibitor 1‐methylcyclopropene (MCP). Exposure of carrot roots to ethylene, UV‐B irradiation, inoculation with fungal pathogens, treatment with 2,4‐D or methyl jasmonate induced accumulation of the phytoalexin 6‐methoxymellin (6‐ME). Exposure to MCP for 4–12 h prior to the treatments completely inhibited 6‐ME accumulation, indicating that 6‐ME synthesis by carrot roots requires ethylene action.