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松树种子萌发过程中苯丙氨酸解氨酶的活力(PDF)

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

Issue:
1992年02期
Page:
42-46
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
THE ACTIVITIES OF PHENYLALANINE AMMONIALYASE DURING THE GERMINATION OF PINE SEEDS
Article ID:
1000-2006(1992)02-0042-05
Author(s):
Cheng Shuwan Cheng Danghai Fang Yanming
Department of Forestry
Keywords:
Pine Germination of seed PAL Endogenous inhibiting substance for PAL
Classification number :
-
DOI:
10.3969/j.jssn.1000-2006.1992.02.009
Document Code:
A
Abstract:
The activity of phenylalanine ammonialyase (PAL)was determined periodically during the germinating process of seeds (20-21 d, from imbibition to emergence of cotyledon) of Taiwan pine, Masson’ s pine, Japanese red pine and Japanese black pine respectively. It turned out that PAL also existed during the germination of gymnospermous seeds as well as those of angiosperm. In the case of calculation with fresh weight, all the dynamics of PAL activity in the four species appeared to be the parabola, which were similar to those of annual herbaceous crops; whereas in the case of calculation with proteinous N, all the dynamics displayed positive linear character, being different from the annual herbaceous crops which were still in parabola shape. Sequence of PAL activity from various species was similar to that of their growth rate and lignifying degree, i. e. Taiwan pine, Masson’ s pine > Japanese red pine, Japanese black pine, which indicated that there was a certain connection between them. When treating the germinating materials with cycloheximide (CHM), their PAL activity increased by several times, which showed that as the same of annual herbaceous crops, the endogenous inhibiting substance for PAL also existed in the germination of gymnosperm during the germination of their seeds.

References

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Last Update: 1900-01-01