银杏种子生长特性及其生理变化的研究

应用生态学报 ›› 2000, Vol. ›› Issue (4): 507-512.

银杏种子生长特性及其生理变化的研究

王建¹, 王九龄², 辛学兵³

1. 中国科学院沈阳应用生态研究所, 沈阳110015;
2. 北京林业大学资源与环境学院, 北京100083;
3. 中国林业科学研究院林业科学研究所, 北京100091

收稿日期:1999-05-28 修回日期:2000-02-25 出版日期:2000-07-25
通讯作者: 王建,男,32岁,博士,讲师,现在中国科学院沈阳应用生态研究所做博士后,从事森林培育学、农林复合研究,发表论文9篇.
基金资助:
林业部“九五”重点资助项目(950701)

Seed growth characteristics of Ginkgo biloba and its physiological change

WANG Jian¹, WANG Jiuling², XIN Xuebin³

1. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110015;
2. Beijing Forestry University, Beijing 100083;
3. Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091

Received:1999-05-28 Revised:2000-02-25 Online:2000-07-25

摘要/Abstract

摘要： 从纵径、横径、体积、重量等方面分析了银杏种子的生长特性及其生长过程中水分、糖类物质、脂肪酸、氨基酸的生理变化.结果表明,银杏种子的生长过程曲线为典型的单“S”型,种子纵径、横径、体积、重量、绝对含水量随生长过程呈“S”形变化.各种生理物质含量随种子生长过程呈规律性变化,且各有其特点.其中在种子生长后期糖类物质总量表现出上升的趋势,表明它们是种子中主要的营养储存物质.成熟种子含淀粉8.4%、葡萄糖6.7%、果糖4.2%、多糖0.02%、二糖0.01%;含肉豆蔻酸10.6%、棕榈烯酸4.1%、亚麻酸2.4%、硬脂酸1.9%、油酸1.1%、亚油酸0.4%.银杏种子富含15种氨基酸,成熟种子中总含量为1.56g·100g^-1FW,其中以赖氨酸、天门冬氨酸、丙氨酸、精氨酸、组氨酸、谷氨酸、异亮氨酸的含量较高,它们的含量依次为0.287%、0.163%、0.136%、0.133%、0.123%、0.115%、0.095%.

Abstract: The length,width,volume and weight of Ginkgo biloba seed were measured,and the concentrations of water,sugars,fatty acids and amino acids in seed growth process were analyzed.A typical “S” seed growth curve was found,and the length,width,volume,weight and absolute water content all showed the similar changes during growing period.With the growing of ssed,the concentrations of physiological substances in seeds showed regular changes and had their own characteristics.The total amount of sugars appeared to be an increasing trend at the later stage of seed growth,indicating that sugars are the main nutrition substance accumulated in seeds.The concentrations of various substances in matured seeds were starch 8.4%,glucose 6.7%,fructose 4.2%,polysaccharide 0.02%,disaccharide 0.01%,myristic acid 10.6%,palmitic acid 4.1%,flax acid 2.4%,stearic acid 1.9%,oleic acid 1.1%,and linoleic acid 0.4%.Fifteen types of free amino acids were detected in matured seeds,with total content of 1.56g·100g^-1 FW.Among them,lysine aspartic acid,alanine,arginine,histidine,glutamic acid,and isoleucine were dominant,and their concentrations were 0.287%,0.163%,0.136%,0.133%,0.123%,0.115%,0.095%,respectively.

王建, 王九龄, 辛学兵. 银杏种子生长特性及其生理变化的研究[J]. 应用生态学报, 2000, (4): 507-512.

WANG Jian, WANG Jiuling, XIN Xuebin. Seed growth characteristics of Ginkgo biloba and its physiological change[J]. Chinese Journal of Applied Ecology, 2000, (4): 507-512.

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