干旱区生态环境知识资源中心(Arid): 短命植物伊犁郁金香和鸢尾蒜的种子及其幼苗对渗透胁迫的响应

Arid

	短命植物伊犁郁金香和鸢尾蒜的种子及其幼苗对渗透胁迫的响应
其他题名	Osmotic Stress Responses of Seed Germination and Resultant Seedling of Ephemerals of Ixiolirion tataricum (Pall.) Herb. and Tulipa illensis Rgl
	唐安军 1; 田美华 2; 龙春林 1
ISSN	1001-4705
出版年	2008
卷号	27 期号:6 页码:21-24
中文摘要	早春短命植物鸢尾蒜(Ixiolirion tataricum)和伊犁郁金香(Tulipa illensis)是两种优良的野生花卉种质资源.在模拟渗透胁迫的条件下,分别研究了这两种短命植物种子萌发响应特点及其幼苗脯氨酸含量的变化.结果表明:随着水势的降低,鸢尾蒜(Ixiolirion tataricum)和伊犁郁金香(Tulipa illensis)的种子的萌发率逐渐降低,乃至丧失萌发力;与此相反,其幼苗的脯氨酸含量却增加.可以认为,它们在萌发阶段对水分胁迫的响应特点决定了其分布和丰富度.
英文摘要	The two desert short-lived plants of Ixiolirion tataricum and Tulipa illensis Rgl.are wild perfect flowers.Changes of seedling proline content and seed responses of the two ephemeral plants to simulated osmotic stress in Polyethylene Glycol 8000(PEG)solutions were investigated.With the decreasing water potential,the final germination percentages of seeds of I.tataricum and T.illensis significantly decreased from 87% to 0 and 96% to 0,respectively.In contrast,proline content of their seedlings produced by seeds treated by PEG solutions significantly increased.Thus,we included that osmotic stress had significantly effects on both the final germination and seedling proline content of Ixiolirion tataricum and Tulipa illensis,respectively.Moreover,seed germination success may reflect upon population numbers,affecting the distribution and abundance of the two short-lived plants.
中文关键词	短命植物 ; 渗透胁迫 ; 种子萌发 ; 脯氨酸 ; 干旱适应机制
英文关键词	short-lived plant osmotic stress germination proline content drought-adaptive mechanism
语种	中文
国家	中国
收录类别	CSCD
WOS类目	HORTICULTURE
WOS研究方向	Agriculture
CSCD记录号	CSCD:3313510
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223225
作者单位	1.中国科学院昆明植物研究所, 昆明, 云南 650204, 中国; 2.中国科学院研究生院, 北京 100049, 中国
推荐引用方式 GB/T 7714	唐安军,田美华,龙春林. 短命植物伊犁郁金香和鸢尾蒜的种子及其幼苗对渗透胁迫的响应[J],2008,27(6):21-24.
APA	唐安军,田美华,&龙春林.(2008).短命植物伊犁郁金香和鸢尾蒜的种子及其幼苗对渗透胁迫的响应.,27(6),21-24.
MLA	唐安军,et al."短命植物伊犁郁金香和鸢尾蒜的种子及其幼苗对渗透胁迫的响应".27.6(2008):21-24.