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Ozone injury in soybeans. Isoflavonoid accumulation is related to necrosis

Journal Article · · Plant Physiol.; (United States)
DOI:https://doi.org/10.1104/pp.55.4.731· OSTI ID:7354832

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. (auth)

Research Organization:
Univ. of California, Riverside
OSTI ID:
7354832
Journal Information:
Plant Physiol.; (United States), Journal Name: Plant Physiol.; (United States) Vol. 55:4; ISSN PLPHA
Country of Publication:
United States
Language:
English