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Study on the Stomata Characters of Leaves of the Puionium Gaertn
Author(s): 
Pages: 199-203
Year: Issue:  2
Journal: BULLETIN OF BOTANICAL RESEARCH

Keyword:  沙芥属气孔叶片;
Abstract: 观察了沙芥属(Pugionium Gaern.)3个种:沙芥(P.cornutum(L.)Gaertn.),距果沙芥(P.calcaratum Kom.)和斧翅沙芥(P.dolatum Maxim.var.dolabratum)的子叶和真叶表皮特征及气孔指标,并进行了差异显著性分析.结果表明:沙芥属植物表皮形状多为无规则形,上、下表皮均具有气孔,气孔类型均为不等细胞型.气孔保卫细胞呈肾形,内壁加厚,但加厚程度不同,斧翅沙芥>距果沙芥>沙芥.气孔缝呈纺锤形,气孔均下陷;气孔日开闭规律均呈双峰曲线.斧翅沙芥和距果沙芥的气孔性状具有较大的相似性,但这两个种与沙芥的气孔性状存在明显差异,说明沙芥属植物叶片气孔稳定性状和形态可以作为种质资源鉴定和评价的重要微观特征.
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