... A-2, B-2, A-1, and B-1, while total
avenacins included active avenacins and mono-dG-A-1 which has some residual fungi-
cidal activity. The concentrations of avenacins A-1, B-1, and A-2 were greater ... mono-dG-A1 (Figure 20. 3). Yields of A-1 and A-2 are approximately
10 times higher with the improved extraction procedure, while yields of B-1 are approxi-
mately 2 times higher. Decreased B...
... sim-
ilar in appearance to a good Pilsner beer. This F-2-p fraction contains native plant enzymes
as well as salts, soluble carbohydrates, and other water solubles. The F-1-protein concen-
trate ... spray-drying of the basic solution.
Fraction-2-proteins are recovered by adjusting the pH of the pale amber solution to 4.5
followed by cooling to 5-1 0°C for 24 h. As in the case of F-1-p, this...
... allowed
to solidify. Solutions of test compounds (6-pentyl-2H-pyran-2-one (I), 4-methyl-6-pentyl-2H-pyran-2-one (VII),
or 4,6-dimethyl-2H-pyran-2-one (VIII)) were prepared in acetone and applied ... Press LLC
6-pentyl-2H-pyran-2-one is complex. Understanding its mode of action may prove more
challenging than one might anticipate, if indeed 6-pentyl-2H-pyran-2-one is the physiolog-
ically rel...
... confirmed its association with L-3,4-dihy-
droxyphenylalanine (L-DOPA). It is well known that velvetbean seeds contain a high con-
centration of L-DOPA (6 to 9%),
20, 21
which plays a role as a ... 32 1-3 25.
19. Fujii, Y., Shibuya, T., and Yasuda, T. 1991. L-3,4-dihydroxyphenylalanine as an allelochemical
candidate from Mucuna pruriens (L.) DC. var. utilis. Agr. Biol. Chem., 55, 61 7-6...
... derivatized to yield the herbicides dicamba (3,6-dichloro-
2-methoxybenzoic acid) and chloramben (3-amino-2,5-dichlorobenzoic acid). The allelo-
pathic terpenoid 1,8-cineole has served as a model for the ... has not yet been released.
1 4-1 6
5.2 Tree-of-Heaven (Ailanthus altissima)
Tree-of-heaven (Ailanthus altissima, Simaroubaceae) has been known since the work of Mer-
gen in 1959 to prod...
... natural compounds:
(24R )-1 4α-methyl-5α-ergostan-3-one; 14α-methyl-5α-cholestan-3-one; cycloart-5-ene-
3β,25-diol; cycloart-3β,25-diol; 4α-methylergostan-5-ene-3β-ol; stigmast-4,22-dien-6β-ol- 3-
one ... stigmast-4,22-dien-6β-ol- 3-
one and 24-phenylethyl-cholest-3,6-dione were identified; together with several known
compounds: (24R)-stigmast-4-ene-3-one; ergost-4-ene-3-one; (24R)-s...