This conversion from juglone to semiquinone radical that causes the superoxide anion radical to form takes place in the mitochondria as well as the cytosol.
12.
Like most walnuts, " J . australis " produces juglone, an allelopathic substance which decreases competition from other plants growing nearby.
13.
The black walnut " ( Juglans nigra ) " produces the allelochemical juglone, which affects some species greatly while others not at all.
14.
Juglone is poorly soluble in water and does not move far in the soil and will stay most concentrated in the soil directly beneath the tree.
15.
This gives you two ways to cope : keep sensitive plants outside the death zone, and choose juglone-tolerant ones for the area within it.
16.
Some of them, however, are capable of detoxification of juglone ( and related naphthoquinones ) to non-toxic 1, 4, 5-trihydroxynaphthalene.
17.
An example of antibiosis is " Juglans nigra " ( black walnut ), secreting juglone, a substance which destroys many herbaceous plants within its root zone.
18.
A . The toxin, called juglone, cannot be easily neutralized _ and it can persist in the soil for years, so even a chain saw won't help.
19.
To determine the juglone zone, measure the distance from trunk to drip line, double it, then add another 10 to 30 feet, depending on the size of the tree.
20.
Even after a tree is removed the soil where the roots once were will still contain juglone for several years after the tree is removed as more juglone will be released as the roots decay.
