publication . Other literature type . 1991

Wound-Induced Deposition of Polyphenols in Transgenic Plants Overexpressing Peroxidase 1

Lagrimini, L. Mark;
Open Access English
  • Published: 01 Jun 1991
Abstract
Tobacco (Nicotiana tabacum) plants transformed with a chimeric tobacco anionic peroxidase gene have previously been shown to synthesize high levels of peroxidase in all tissues throughout the plant. One of several distinguishable phenotypes of transformed plants is the rapid browning of pith tissue upon wounding. Pith tissue from plants expressing high levels of peroxidase browned within 24 hours of wounding, while tissue from control plants did not brown as late as 7 days after wounding. A correlation between peroxidase activity and wound-induced browning was observed, whereas no relationship between polyphenol oxidase activity and browning was found. The purif...
Subjects
Medical Subject Headings: food and beveragesfungi
free text keywords: Metabolism and Enzymology
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Europe PubMed Central
Other literature type . 1991
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