Weed Biology and Management (2013) 13, 129-134

Muhammad Naeem Mushtaq, Yukari Sunohara and Hiroshi Matsumoto (2013)
l-DOPA inhibited the root growth of lettuce by inducing reactive oxygen species generation
Weed Biology and Management 13 (4), 129-134
Abstract: l-3,4-dihydroxyphenylalanine (l-DOPA) is a bioactive natural compound that inhibits the growth of several plant and weed species. However, its mode of action is not yet well understood in plants. The present study was conducted to explore the mechanism of growth inhibition by l-DOPA in lettuce (Lactuca sativa L.). The results revealed that l-DOPA induced cell death and inhibited the root growth of lettuce. Moreover, 0.1 mmol L^-1 l-DOPA enhanced the polyphenol oxidase activity, production of reactive oxygen species (O₂^- and H₂O₂) and lipid peroxidation in the lettuce roots. The results suggest that l-DOPA-induced growth inhibition in lettuce roots might be related to oxidative stress.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Hiroshi Matsumoto, Yukari Sunohara

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Mucuna pruriens var. utilis (weed)