juglone


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juglone

naphthoquinone resinoid from Juglans nigra.
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Canadian hemlock and arborvitae are the only evergreens I've found that can tolerate both juglone and some shade.
These findings may be explained by previous studies, showing that juglone (5-hydroxy-1,4-naphthoquinone) partially blocks voltage-dependent potassium channels, causing depolarization of the membrane [52].
Underlying the walnut's compelling disease-inhibiting benefits is an abundance of polyphenols, as well as the rare, anticancer phytonutrients juglone, tellimagrandin, and morin.
L1 stage worms were treated with EPs7630[R] (40, 50,100 [micro]g/ml) dissolved in water for 48 h, followed by addition of 20 [micro]M juglone to the medium for 24 h.
Terzi, "Allelopathic effects of Juglone and decomposed walnut leaf juice on muskmelon and cucumber seed germination and seedling growth," African Journal of Biotechnology, vol.
alley cropping spatiotemporal variation in soil juglone in a black walnut-corn (Zea mays L.
Selective inactivation of parvulin like peptidyl-prolyl cis/trans isomerases by juglone.
Juglone (5-hydroxy-1,4-naphthalenedione, or 5-hydroxy1,4-naphthoquinone) occurs naturally in the leaves, roots, and bark of plants in the Juglandaceae family, particularly black walnut (Juglans nigra).
Black walnut (Juglans nigra) controls its territory with a chemical called juglone, exuded from its roots, leaves and nuts, which can kill most plants trying to grow in the surrounding soil.
Juglone is an allelopathic chemical, meaning it inhibits the growth of other plants in the vicinity of the tree, reducing competition for water and nutrients.
If you've ever tried to grow tomatoes near black walnut, then you know the devastating effect the chemical juglone can have on certain plants.
Yet, hydrangea makes the list of plants resistant to juglone and, judging from the appearance of several scores of its pink mophead flowers, it is as though something in the walnut's chemistry actually stimulated this hydrangea's growth.