山东滨海盐生植物叶结构的比较研究

通过对１１科１４属１４种滨海盐生植物的叶焉结构的比较研究表明：（１）生长在同一盐生环境中的１４种植物，其中片具有许多结构的共同适应特征，如表皮细胞大小不等，外切向壁外突；栅栏组织发达；存在结晶细胞，单宁细胞和贮水细胞；机械绷带和维管组织都不发达等。

COMPARATIVE STUDIES ON THE STRUCTURES OF LEAVES OF MARITIME HALOPHYTES IN SHANDONG

Comparative studies on the anatomical structure of the leaves of 14 maritime halophytes ( Lathyrus maritimus,Calystegia soldanella,Glehnia littoralis,Asparagus dauricus,Dianthus chinensis,Silene aprila,Scutellaria strigillosa,Cynanchum thesioides,Limonium bicolor,Messerschmidia rosmarinifolia,Ixeris debilis,Scorzonera albicaulis,Corispermum puberulum,Salsoda komarovii ) were carried out.The observed results are as follows:(1) Plants growing in the same halophilic environment have many identically leaf structural adaptations:different size epidermic cells and raised out tangenial walls of epidermic cells;flourishing palisade tissue;existing crystalliferous cells and tannin idioblasts;a large amount of water storage parenchyma;less vascular tissue and mechanical tissue; (2) Different halophytes have different adaptional features.Salt glands ob served in Limonium bicolor .There are well developed mesophyll intercellular space in some plants such as Ixeris debilis .Raised stomata exist in some plants such as Scutellaria strigillosa ;(3) Leaves of halophytes have differently structural characteristics compared with those of xerophytes.Most of them have thin cuticle.Stomata are at the same level as epidermis cells,sometimes even high than them.Almost all of the halophytes have less vascular tissue and mechanical tissue.