Salt gland distribution in limonium bicolor at the individual level

3rd International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Leng, B.Y.^1 ; Yuan, F.^1 ; Dong, X.X.^1 ; Wang, B.S.^1

Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Ji'nan, Shandong

250014, China^1

关键词: Constant values;    Developmental stage;    Differential interference contrast microscopes;    Epidermal cells;    Individual levels;    Leaf expansion;    Rapid expansion;    Saline soil;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/113/1/012202/pdf
DOI  :  10.1088/1755-1315/113/1/012202

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Limonium bicolor is a typical exo-recretohalophyte with multi-cellular salt glands. A differential interference contrast (DIC) microscope were applied to investigate the pattern of salt gland distribution in L. bicolor at the individual level. For a single mature leaf, more salt glands are distributed in the leaf central and apical regions than leaf base. For the leaves in different developmental stages, firstly, the density of salt glands linearly decreased at the beginning of leaf expansion and kept a relatively constant value in the later periods, which was mainly due to the rapid expansion of epidermal cells. Secondly, the total number of glands per leaf showed a reversed trend compared to the density of salt glands. These results suggested that the salt gland density was adapted to the leaf age and area as more and more salt accumulated in the saline soils.