Open AccessOzone Injury in Soybeans
Author(s) -
N. T. Keen,
O. C. Taylor
Publication year - 1975
Publication title -
plant physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.554
H-Index - 312
eISSN - 1532-2548
pISSN - 0032-0889
DOI - 10.1104/pp.55.4.731
Subject(s) - peroxyacetyl nitrate , coumestrol , fumigation , ozone , isoflavonoid , chemistry , daidzein , phytoalexin , sulfur dioxide , glycine soja , pseudomonas chlororaphis , glycine , horticulture , pseudomonas , environmental chemistry , botany , biology , nox , flavonoid , biochemistry , antioxidant , bacteria , organic chemistry , genistein , genetics , amino acid , resveratrol , combustion , endocrinology
Fumigation of soybean leaves (Glycine max [L.] Merr. with ozone caused stippling and silvering at the same time that large accumulations of the isoflavonoid compounds daidzein, coumestrol, and sojagol occurred. Nitrogen dioxide and sulfur dioxide caused lesser accumulation of the isoflavonoids, and peroxyacetyl nitrate did not result in significant accumulation. Visible toxicity and chemical changes in ozone-fumigated leaves were similar to the hypersensitive disease defense reaction of soybean leaves to the pathogen Pseudomonas glycinea, except that the phytoalexin hydroxyphaseollin was not produced in the ozone-treated leaves.