干旱区生态环境知识资源中心(Arid): 生物结皮中齿肋赤藓叶片细胞显微与亚显微结构特征

Arid

	生物结皮中齿肋赤藓叶片细胞显微与亚显微结构特征
其他题名	Microscopic and Submicroscopic Structure of Leaf Cells of Syntrichia caninervis Mitt.in Biological Soil Crusts
	魏美丽; 张元明
ISSN	1000-694X
出版年	2009
卷号	29 期号:3 页码:493-498
中文摘要	利用光学显微镜和透射电镜,对新疆古尔班通古特沙漠生物结皮中齿肋赤藓叶片细胞的结构特征进行了观察研究.结果表明,齿肋赤藓叶片边缘背卷、中肋粗壮.多数叶片中上部具两层细胞,基部为单层细胞;透射电镜下细胞壁较厚,具疣状突起.且细胞壁通道较多,细胞中叶绿体、细胞核、线粒体、微体、液泡等细胞器明显.其中,叶绿体中基粒片层结构和类囊体清晰,纵向排列,细胞膜和叶绿体双层膜系统保持完好.表明生物结皮中齿肋赤藓对干旱环境具有较强的结构适应性.
英文摘要	The structures of leaf cells of Syntrichia caninervis Mitt., which inhabits in biological soil crusts in the Gurbantunggut Desert, Xinjiang, were observed under the optical microscope and transmission electron microscope. The leaves of Syntrichia caninervis Mitt, have distinct midribs and the leaf edges roll to back; The upper parts of most leaves are arrayed with two-layer cells, and the base part with single-layer cells. Under transmission electron microscope, the cell wall layer is thick and has verrucous protuberances and more vessels; the cell components, such as the chloroplast, nucleus, mitochondria, microbody, and vacuole are distinctly observed. For example, there are clear thylakoids and lamellar structure in chloroplast, being longitudinally distributed; the membrane system of various kinds of cell structures remained intact. Suggested by the above observation the plant species of Syntrichia caninervis Mitt, in biological soil crusts is well adapted to harsh environment by adjusting its leaf structure in desert ecosystem.
中文关键词	生物结皮 ; 齿肋赤藓 ; 哑显微结构 ; 结构适应 ; 古尔班通古特沙漠
英文关键词	biological soil crust Syntrichia caninervis Mitt. ultrastructure leaf structural adaptation the Gurbantunggut Desert
语种	中文
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:3635472
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/224552
作者单位	中国科学院新疆生态与地理研究所, 中国科学院绿洲生态与荒漠环境重点实验室, 乌鲁木齐, 新疆 830011, 中国
推荐引用方式 GB/T 7714	魏美丽,张元明. 生物结皮中齿肋赤藓叶片细胞显微与亚显微结构特征[J]. 中国科学院新疆生态与地理研究所,2009,29(3):493-498.
APA	魏美丽,&张元明.(2009).生物结皮中齿肋赤藓叶片细胞显微与亚显微结构特征.,29(3),493-498.
MLA	魏美丽,et al."生物结皮中齿肋赤藓叶片细胞显微与亚显微结构特征".29.3(2009):493-498.