Plant growth regulators in Eucalyptus grandis. VI. Reaction of the G-regulators with nucleophiles

1982 ◽  
Vol 35 (7) ◽  
pp. 1431 ◽  
Author(s):  
ML Bolte ◽  
WD Crow ◽  
S Yoshida
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Eucalyptus Grandis ◽  
Michael Adducts

The formation of Michael adducts from the G-regulators and analogues with amines is described. Such adducts are, in general, unstable zwitterionic compounds and are decomposed by the action of acid into the parent G-regulator and the related 2-aminomethylene 1,3-diketone. Analogies are drawn with the natural storage and release in vivo.

Plant growth regulators in Eucalyptus grandis. IV. Synthetic approaches to G-regulator analogues

1982 ◽  
Vol 35 (7) ◽  
pp. 1411 ◽  
Author(s):  
ML Bolte ◽  
WD Crow ◽  
S Yoshida
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Lewis Acid ◽  
Growth Regulators ◽  
Good Yield ◽  
Acid Catalysis ◽  
Physiological Activity ◽  
Eucalyptus Grandis ◽  
Synthetic Approach ◽  
Synthetic Approaches

A new synthetic approach is described to the plant growth regulators of the hexahydrobenzo[e]- 1,2-dioxin group (the G-regulators of Eucalyptus grandis). Condensation of 1,3-diketones with aldehydes under Lewis acid catalysis gives, in good yield, the 1 : 2 adducts (4H-1,3-dioxins); these are simultaneously cleaved and (with some exceptions) oxidized on silica gel to the desired structure. In this way synthesis of a number of G-regulator analogues of similar physiological activity has been achieved.

Wheat regenerants in the system of rapid assessment of the effect of 24-epibrassinolide

Biomics ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 394-397
Author(s):  
Seldimirova O.A. ◽  
M.V. Bezrukova ◽  
N.N. Кruglova ◽  
F.М. Shakirova
Keyword(s):  
Plant Growth ◽  
Experimental Model ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Drought Resistance ◽  
Rapid Assessment ◽  
Immature Embryo ◽  
Model System ◽  
Wheat Cultivars ◽  
Experimental Model System

The influence of 24-epibrassinolide on the efficiency of regenerants obtained from embryonic calli formation was studied in wheat cultivars contrast for drought resistance. The possibility of using the experimental model system «immature embryo – embryonic callus – regenerant» in the rapid assessment of the effect of antistress plant growth regulators is shown.

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