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赤霉素结构与功能及其在木本植物花发端中的应用(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
1989年02期
Page:
89-95
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
GIBBERELLIN STRUCTURE & FUNCTION & PRACTICAL APPLICATIONS IN THE FLOWER BUD INITIATION OF WOODY PLANT
Article ID:
1000-2006(1989)02-0089-07
Author(s):
Shen Huijuan
Department of Forestry
Keywords:
Gibberellin like substance Biological activity Woody plant Flowering
Classification number :
-
DOI:
10.3969/j.jssn.1000-2006.1989.02.016
Document Code:
A
Abstract:
The author summarizes gibberellin structure-function relationships and practical applications in forestry.First, the gibbcrellins are described as a group of diterpenoid acids, and its activity appears to be related to the degree of oxidation of the C-20 func tion irrespective of hydroxylation at C-3 and C-13. Hydroxylation to the C-3 and C-13 form (e. g. either GA1 or GA3) may be very important to obtain a highly biologically active GA in vegetative growth of the shoot.Secondly, gibberellin metabolism is derived from acetyl ccenzyme A and all CAs originate from a common pathway leading to GA12 aldehype.If we want to control flowering by adding exegencusly a /florigenic/ GA, we should have a knowledge of the endogenous GA and their metabolism. Then ,we can design experiments and treatments to ’synergize’ of the exogenously applied GA.Finally, some metheds arc shown how to induce precocious flowering and how to enhance flowering in conifers. The extra flowering effect of applied GA4/7 is also synergized.

References

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Last Update: 1900-01-01