[1]Kristina Connorl,Sharon Sowa.顽拗型种子贮藏和脱水过程中碳水化合物、脂肪和蛋白质的生化变化[J].南京林业大学学报(自然科学版),2005,29(01):005-10.[doi:10.3969/j.jssn.1000-2006.2005.01.002]
 Kristina Connor,Sharon Sowa.Biochemistry of Recalcitrant Seeds: Carbohydrates, Lipids, and Proteins[J].Journal of Nanjing Forestry University(Natural Science Edition),2005,29(01):005-10.[doi:10.3969/j.jssn.1000-2006.2005.01.002]
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顽拗型种子贮藏和脱水过程中碳水化合物、脂肪和蛋白质的生化变化
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《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

卷:
29
期数:
2005年01期
页码:
005-10
栏目:
研究论文
出版日期:
2005-01-20

文章信息/Info

Title:
Biochemistry of Recalcitrant Seeds: Carbohydrates, Lipids, and Proteins
文章编号:
1000-2006(2005)01-0005-06
作者:
Kristina Connorl Sharon Sowa2
1. U. S. Forest Service, Box 9681, Mississip pi State, MS 39762, U. S. A.; 2. Department of Chemistry, Indiana University Of Pennsylvania, Indiana, PA, 15705, U. S. A.
Author(s):
Kristina Connor1 Sharon Sowa2
1. u. s. Forest Service, Box 968 l, Mississippi State, MS 39762, U. S. A.; 2. Department of Chemistry, Indiana University of Pennsylvania, Indiana, PA, 15705, U. S. A.
关键词:
顽拗型种子 蔗糖 脂肪 蛋白质
Keywords:
Recalcitrant seeds Sucrose Lipids Proteins
分类号:
S722
DOI:
10.3969/j.jssn.1000-2006.2005.01.002
文献标志码:
A
摘要:
<正>以黑龙江省图强林业局的育英和奋斗林场为研究区,从景观尺度上。以遥感和地理信息系统为技术手段,探讨和分析了1987年大兴安岭“5?6”特大森林火灾中,火烧强度对森林景观格局变化的影响。结果表明:火烧强度不同,导致种源、土壤理化性质等自然环境要素产生差异,并决定了火后森林景观更新与恢复的措施,进而影响森林景观格局的动态变化趋势。
Abstract:
While the commonality of recalcitrant seeds is that they cannot be dried to low moisture contents or stored for long periods of time without damage, the biochemical mechanisms that contribute to this problem may vary among genera and even among species within a genus. We examined recalcitrant-seeded species of Quercus,Acer, and Aesculus for biochemical changes that might occur during storage or during desiccation at room temperature. While changes in the composition of storage lipids were inconclusive,we did find structural shifts in membrane lipids and proteins,and amounts of sucrose. In one experiment using two subsets of Q. a[ba acorns kept at room temperature for 12 days, the subset that desiccated exhibited large shifts in sucrose content while the subset that was kept fully hydrated exhibited much smaller changes. It is our conclusion that the sucrose in the hydrated seeds is utilized for normal growth and development while sucrose in the desiccating seeds may function secondarily as a glycoprotectant. However, while the presence of sueros. e may protect membranes from disruption in the drying acorns,it does not function to preserve acorn viability.
更新日期/Last Update: 2013-05-20