干旱区生态环境知识资源中心(Arid): 胡杨叶片解剖特征及其可塑性对土壤条件响应

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	胡杨叶片解剖特征及其可塑性对土壤条件响应
其他题名	Plasticity Response of Leaf Anatomical Characteristics of Populus euphraticain Different Soil Conditions
	董芳宇; 王文娟; 崔盼杰; 王健铭; 张天汉; 李景文
来源期刊	西北植物学报
ISSN	1000-4025
出版年	2016
卷号	36 期号:10 页码:2047-2057
中文摘要	表型可塑性对极端干旱区植物个体适应具有重要的意义。该研究选择内蒙古额济纳胡杨林内不同土壤条件下胡杨个体,对其叶片解剖结构与土壤因子关系进行分析,阐明不同土壤条件下叶片解剖结构及其可塑性规律。结果表明:除主脉木质部与维管束面积比外,异质性的土壤条件下胡杨叶片各解剖结构均存在明显的趋异适应;土壤水、盐条件影响了以上表皮细胞为代表的表皮组织的生长发育,土壤肥力影响了以主脉维管束为代表的输导组织以及栅栏组织的生长;生境环境异质性是胡杨叶片解剖结构可塑性的根本原因,解剖结构可塑性使得胡杨在不同环境、同一环境不同结构形成适应性差异,不同土壤条件下叶片主脉木质部、主脉维管束的可塑性较大,是胡杨适应异质性土壤条件的主要结构。叶片解剖结构特征及其可塑性对胡杨适应干旱环境具有重要生态作用。
英文摘要	Phenotypic plasticity play the important role in the plant individual adaptation in extreme arid region. In this study,leaf anatomical structures of Populus euphratica were quantitatively analyzed to reveal the differences of phenotypic adaptive plasticity in three different soil conditions(Erdaoqiao,Qidaoqiao, Badaoqiao)in Egina,Innermongolia.The results showed that leaf anatomical structures of P.euphratica presented obvious divergence phenomenon in the heterogeneous soil conditions.Leaf anatomical structures of P.euphraticain Erdaoqiao,Qidaoqiao,Badaoqiao had different degrees of differences except main vein xylem/main vascular bundle area,and spongy tissue thickness had significant differences among three soil conditions.Soil moisture and salinity affected growth of epidermal tissue in represents of upper epidermal cell,and soil fertility affected growth of conducting tissue in represents of the main vein vascular bundle and palisade tissue in Ejina.Environmental heterogeneity is the root cause of leaf anatomical plasticity of P.euphratica.Leaf anatomical plasticity make P.euphraticaadapt to different environments and different structures form adaptability difference in the same environment.Variation coefficient and plasticity index of the main vein xylem area and the main vein vascular bundle area were high,which showed main vein xylem and main vein vascular bundle were the major structure of P.euphraticain response to conditional changes.Leaf anatomical structure characteristics and its plasticity are the important adaptive strategy of P.euphraticain the dryland.
中文关键词	胡杨 ; 解剖结构 ; 可塑性 ; 土壤含水量 ; 土壤盐分 ; 土壤肥力
英文关键词	Populus euphratica anatomical structure plasticity soil moisture soil salinity soil fertility
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:5859407
来源机构	北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/235163
作者单位	北京林业大学, 北京市省部共建森林培育与保护教育部重点实验室, 北京 100083, 中国
推荐引用方式 GB/T 7714	董芳宇,王文娟,崔盼杰,等. 胡杨叶片解剖特征及其可塑性对土壤条件响应[J]. 北京林业大学,2016,36(10):2047-2057.
APA	董芳宇,王文娟,崔盼杰,王健铭,张天汉,&李景文.(2016).胡杨叶片解剖特征及其可塑性对土壤条件响应.西北植物学报,36(10),2047-2057.
MLA	董芳宇,et al."胡杨叶片解剖特征及其可塑性对土壤条件响应".西北植物学报 36.10(2016):2047-2057.