Phenolic constituents of Celosia cristata L. susceptible to spinach root rot pathogen Aphanomyces cochlioides.
Cochliophilin A (5-hydroxy-6,7-methylenedioxyflavone, 1), known as a host-specific attractant towards the zoospores of Aphanomyces cochlioides, a cause of root rot and damping-off diseases of Chenopodiaceae, was found in the Amaranthaceae plant, Celosia cristata, that is susceptible to the pathogen. The content of 1 in Celosia seedlings was quantified as 1.4 microg/g fresh weight. A new isoflavone, cristatein (5-hydroxy-6-hydroxymethyl-7,2'-dimethoxyisoflavone, 2), and five known flavonoids were also identified.
Wen
Yaolin
Y
Laboratory of Ecological Chemistry, Graduate School of Agriculture, Hokkaido University, Japan.
Islam
Md Tofazzal
MT
Tahara
Satoshi
S
D044744:Aphanomyces / Q000472:pathogenicity*; D034762:Celosia / Q000737:chemistry*; D047309:Flavones / Q000502:physiology; D005419:Flavonoids / Q000302:isolation & purification; D007529:Isoflavones / Q000302:isolation & purification; D010636:Phenols / Q000032:analysis*; D010935:Plant Diseases / Q000382:microbiology*; D018517:Plant Roots / Q000382:microbiology; D036226:Seedlings / Q000737:chemistry
D047309:Flavones; D005419:Flavonoids; D007529:Isoflavones; D010636:Phenols; C494663:cochliophilin A