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石蒜花芽分化期内源激素和核酸含量的变化(PDF)

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

Issue:
2008年04期
Page:
67-70
Column:
研究论文
publishdate:
2008-07-20

Article Info:/Info

Title:
Variation of endogenous hormone and nucleic acid content during flower bud differentiation in Lycoris radiata
Article ID:
1000-2006(2008)04-0067-04
Author(s):
WANG Lei12 TANG Geng-guo2* LIU Tong3
1. Jiangsu Polytechnic College of Agriculture and Forestry, Jurong 212400, China; 2. College of Forest Resources and Environment Nanjing Forestry University, Nanjing 210037, China; 3. College of Life Science Shihezi University, Shihezi 832003, China
Keywords:
Lycoris radiata Flower bud differentiation Endogenous hormone Nucleic acid
Classification number :
Q945; Q946
DOI:
10.3969/j.jssn.1000-2006.2008.04.015
Document Code:
A
Abstract:
The dynamic changes of endogenous hormone content during flower bud differentiation were studied in Lycoris radiata while the bulb was anatomized. The relationship between the endogenous hormones and nucleic acid’ s content was analysed. The results showed that the peak of endogenous hormones content was IAA,ABA in former differentiation stage, GA in forming for stamen and ZR in forming for pistil in flower bud morphogensis. The nucleic acid content peak followed. It presented endogenous hormones regulated nucleic acid metabolism progress. IAA and ABA were the most important facts in flower bud differentiation progress. The high ratio of ABA to GA accelerated both forming differentiation and development of flower bud formation. High ratio of IAA to ZR and ABA to ZR accelerated flower bud formation,but it went against stamen and pistil formation. All these Showed that. the content of the four endogenous hormones varied remarkably and achieved a balance at the end. The flower bud differentiation was finished at the end.

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Last Update: 2013-05-20