CAJ | 학술논문

[目的】对金铁锁居群在水分限制下的叶解剖结构进行研究。[方法]选取引种至实验大田的多年生草本植物金铁锁的2年生实生苗为研究对象，在给水和不给水2种条件下，采用常规石蜡切片法和印迹法，对2个居群的叶解剖结构及气孔的生理特性进行了对比研究。[结果]在冬春季干旱期，不给水栽培条件下的金铁锁表现为叶片上角质层变厚，栅栏组织和海绵组织比值增加，维管束直径增加，主脉木质部维管数增加；叶气孔口变小，气孔密度增加等变化，可以将这些性状的可塑性作为金铁锁居群对水分亏缺作出反应的重要指标。同时，这些指标的变化幅度存在居群问差异。丽汀阿西居群在不给水的栽培条件下，叶解剖结构和气孔特性变化显著，从而可能使该居群对干旱环境具有更强的适应能力。f结论]对筛选抗旱金铁锁种质资源及探讨居群在自然干旱条件下的适应性分化具有参考价值；
[목적】대금철쇄거군재수분한제하적협해부결구진행연구。[방법]선취인충지실험대전적다년생초본식물금철쇄적2년생실생묘위연구대상，재급수화불급수2충조건하，채용상규석사절편법화인적법，대2개거군적협해부결구급기공적생리특성진행료대비연구。[결과]재동춘계간한기，불급수재배조건하적금철쇄표현위협편상각질층변후，책란조직화해면조직비치증가，유관속직경증가，주맥목질부유관수증가；협기공구변소，기공밀도증가등변화，가이장저사성상적가소성작위금철쇄거군대수분우결작출반응적중요지표。동시，저사지표적변화폭도존재거군문차이。려정아서거군재불급수적재배조건하，협해부결구화기공특성변화현저，종이가능사해거군대간한배경구유경강적괄응능력。f결론]대사선항한금철쇄충질자원급탐토거군재자연간한조건하적괄응성분화구유삼고개치；
[Objective] This study aimed to investigate the leaf anatomical structures of P. tunicoides populations under water-limited conditions. [Method] 2-year-old seedlings of herbaceous perennial P. tunicoides that was introduced into the experi- mental field were selected as the research objects. Under the well-watered and wa- ter-limited conditions, we conducted the comparative observation of leaf anatomical structure and stomatal characteristics of two populations by using paraffin slice method and imprinting method. [Result] The result showed that the upper cuticle of P. tunicoides leaves were thickened, the palisade tissue/spongy tissue ratio, vascular bundle diameter and number of xylem vessels in main vein had increased, the stomatal opening became smaller and the stomatal density had increased in winter- spring drought period under water-limited conditions. The plasticity of above traits could be regarded as the important indicators for detecting the responses of P. tunicoides populations to water-limited conditions. Meanwhile, variation amplitudes of these indicators were different among populations. Leaf anatomical structure and stomatal characteristics in Lijiang Axi population under water-limited conditions varied significantly, which might cause the stronger adaptability of this population to drought conditions. [Conclusion] This research provided a reference for the selection of drought-resistant P. tunicoides germplasm and exploration of the adaptive differentia- tion of P. tunicoides populations under natural drought conditions.