Stimulation of RNA synthesis in cowpea (Vigna sinensis) seedlings by gibberellic acid and adenosine 3′,5′-cyclic monophosphate

1986 ◽  
Vol 26 (1) ◽  
pp. 31-35 ◽  
Author(s):  
Harish C. Kapoor
Keyword(s):  
Gibberellic Acid ◽  
Rna Synthesis ◽  
Vigna Sinensis ◽  
Cyclic Monophosphate ◽  
Stimulation Of

scholarly journals Biosynthesis of growth hormone in the rat anterior pituitary gland. Stimulation of biosynthesis in vitro by insulin

1973 ◽  
Vol 134 (4) ◽  
pp. 1103-1113 ◽  
Author(s):  
A. Betteridge ◽  
M. Wallis
Keyword(s):  
Growth Hormone ◽  
Anterior Pituitary ◽  
Rna Synthesis ◽  
Glucose Utilization ◽  
Actinomycin D ◽  
Hormone Synthesis ◽  
Pituitary Glands ◽  
Hormone Biosynthesis ◽  
Stimulation Of

The effect of insulin on the incorporation of radioactive leucine into growth hormone was investigated by using rat anterior pituitary glands incubated in vitro. A 50% stimulation over control values was observed at insulin concentrations above 2μm (280munits/ml). The effect was specific for growth hormone biosynthesis, over the range 1–5μm-insulin (140–700munits/ml). Lower more physiological concentrations had no significant effect in this system. Above 10μm (1.4 units/ml) total protein synthesis was also increased. The stimulation of growth hormone synthesis could be partially blocked by the addition of actinomycin D, suggesting that RNA synthesis was involved. Insulin was found to stimulate the rate of glucose utilization in a similar way to growth hormone synthesis. 2-Deoxyglucose and phloridzin, which both prevented insulin from stimulating glucose utilization, also prevented the effect of insulin on growth hormone synthesis. If glucose was replaced by fructose in the medium, the effect of insulin on growth hormone synthesis was decreased. We conclude that the rate of utilization of glucose may be an important step in mediating the effect of insulin on growth hormone synthesis.

RNA synthesis in the embryo suspensor ofPhaseolus coccineus at two stages of embryogenesis, and the effect of supplied gibberellic acid

PROTOPLASMA ◽  
1992 ◽  
Vol 167 (3-4) ◽  
pp. 152-158 ◽  
Author(s):  
L. M. C. Forino ◽  
A. M. Tagliasacchi ◽  
A. Cavallini ◽  
G. Cionini ◽  
E. Giraldi ◽  
...  
Keyword(s):  
Gibberellic Acid ◽  
Rna Synthesis ◽  
Embryo Suspensor ◽  
Two Stages

scholarly journals Hydrocortisone stimulation of RNA synthesis in induction of hepatic enzymes

1965 ◽  
Vol 66 (S1) ◽  
pp. 125-136 ◽  
Author(s):  
Francis T. Kenney ◽  
Wesley D. Wicks ◽  
David L. Greenman
Keyword(s):  
Rna Synthesis ◽  
Hepatic Enzymes ◽  
Stimulation Of

Effects of Kaurane Diterpene Derivatives on Germination and Growth of Lactuca sativa Seedlings

2005 ◽  
Vol 60 (1-2) ◽  
pp. 72-78 ◽  
Author(s):  
Henriete S. Vieira ◽  
Jacqueline A. Takahashi ◽  
Lúcia P. S. Pimenta ◽  
Maria Amélia D. Boaventura
Keyword(s):  
Gibberellic Acid ◽  
Lactuca Sativa ◽  
Naturally Occurring ◽  
Germination And Growth ◽  
Stimulation Of

Kaurenoic and grandiflorenic acid, isolated from Wedelia paludosa (Asteraceae), some derivatives from these acids (alcohols, esters, amides, lactones, oximes) and other naturally occurring kaurane diterpenes were tested for their action on the growth of radical and shoot of Lactuca sativa. Gibberellic acid, GA3, a commercially available phytohormone, belonging to the same class of diterpenes, was also tested. Some of the tested substances showed a remarkable activity either in the inhibition or in stimulation of L. sativa growth. The activity, in some cases, was even higher than that of GA3.

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