干旱区生态环境知识资源中心(Arid): 13种沙生植物纤维和导管分子长度变异的研究及木质部特征的定量研究

Arid

	13种沙生植物纤维和导管分子长度变异的研究及木质部特征的定量研究
其他题名	QuantitatiVe Characteristics of Xylem Cells and Variation in Vessel Element Length and Fibre Length for 13 Psammophytes
	杨淑敏 ; 江泽慧 ; 任海青 ; 古川郁夫
ISSN	1673-5102
出版年	2007
卷号	27 期号:5 页码:601-606
中文摘要	对13种沙生植物的纤维长和导管分子长度进行了测定分析,二者的径向变异规律呈现上升,下降,波动或恒定不变趋势.所选树种的平均纤维长度小于900mum,属于较短纤维.所选树种的纤维长度和导管分子长度除沙冬青年轮内差异不显著外,其他树种间及树种年轮间的差异极其显著.对沙生植物的解剖特征的定量研究可以看出,所选树种的次生木质部特征体现了对沙漠环境的高度适应性.较短,孔径较窄导管以单管孔或复管孔形态出现,纹孔较小使干旱区沙生植物具有较大的水分运输能力,也是水分安全传导的一种策略.
英文摘要	Fibre length and vessel element length were measured and analyzed in 13 psammophytes grown in arid sandy region, and the horizontal variations of them showed decreasing, increasing, considerable fluctuations or constant tendency with age. Fibre length is less than 900 mum which included in short range according to IAWA Committee. There was significant difference in both fibre length and vessel element length among-tree and within-tree except A. mongolicus. From the quantitative study of anatomical characteristics, the secondary xylem cells have high adaptability to desert. Vessels solitary or grouped in multiples with small diameter, very short elements and minute pits ale in respond to demands for greater water transport capacity and the above appearances in the xylem of arid zone species are interpreted as a strategy for conductive safety.
中文关键词	旱地 ; 沙生植物 ; 适应性 ; 径向变异 ; 纤维长
英文关键词	dryland psammophytes adaptability horizontal variation fibre length
语种	英语
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:2841145
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/221733
作者单位	1.Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China; 2.Faculty of Agriculture, Tottori University, Japan
推荐引用方式 GB/T 7714	杨淑敏,江泽慧,任海青,等. 13种沙生植物纤维和导管分子长度变异的研究及木质部特征的定量研究[J],2007,27(5):601-606.
APA	杨淑敏,江泽慧,任海青,&古川郁夫.(2007).13种沙生植物纤维和导管分子长度变异的研究及木质部特征的定量研究.,27(5),601-606.
MLA	杨淑敏,et al."13种沙生植物纤维和导管分子长度变异的研究及木质部特征的定量研究".27.5(2007):601-606.