juglone


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juglone

[′jəg‚lōn]
(organic chemistry)
C10H6O3 A naphthoquinone derivative that occurs naturally in black walnuts and is toxic to plants.
References in periodicals archive ?
Gaspar, "The effect of juglone on the membrane potential and whole-cell [K.
Scientists found that incubation of human liver cancer cells with the walnut quinone juglone caused obvious, destructive changes to the structure of the cancer cells--and induced their apoptosis.
On the day 3 oxidative stress was caused by adding 300 [micro]M of an acute, lethal concentration of juglone (de Castro et al.
4 mg juglone per gram of fresh branch bark from Juglans mandshurica in northeast China (Xu and Xu 1990).
It is important to wear gloves when collecting walnuts since the husks (outside covering of the nuts) contain a substance called juglone that may negatively affect your nervous system if absorbed by the skin.
When tomatoes wilt do show, And near black walnut they do grow, It's juglone toxin's done this deed, And lots of compost you will need.
Juglone is found in the roots of the tree and is present in other parts of the tree in varying concentrations.
The NCI's use of SARs is illustrated by the review of juglone (CAS Registry No.
We have determined the effects of EGb761 on cellular apoptotic machinery following cellular insult with staurosporine or juglone on PC 12 cells, using assays of intracellular levels of free radicals, cytochrome c release, DNA microarray, and Bcl-2 western blotting.
Juglone is the black walnut's evolutionary means of protecting its territory and assuring the good sunlight necessary for its growth.
We attempted to ascertain the effects of anthraquinone and its sodium salt, Phloxine-B, erythrocin-B, fluorencein, 4-phenylazofluorescein, juglone and Phloxine-B associated to an azo group.
Examples are juglone secreted by black walnut roots and leaves and an unidentified toxin secreted by certain species of sedges that depresses rice plants.