Al-Taisan Wafa'a A, Gabr Dalia G
Department of Biology, Faculty of Science, University of Dammam, Saudi Arabia.
Department of Basic Science, Faculty of Education, University of Dammam, Saudi Arabia.
Saudi J Biol Sci. 2017 Jan;24(1):226-233. doi: 10.1016/j.sjbs.2016.04.009. Epub 2016 May 25.
Morphological, anatomical and physiological plasticity was examined for from three different sites at the coastal part of the Arabian Gulf near Ad Dammam city in the eastern region of Saudi Arabia. Morphological investigation showed that the size and number of lobes of the leaves are increased in sites (I) which have high salt stress. Also anatomical investigation using a light microscope showed that the plant is adaptive for salt stress by increasing the thickening of the cuticle or epidermis layer and increase in the area of vascular bundles. Physiological studies showed that plant growing under high salt stress is characterized by increase content of electrical conductivity and increase in chlorophyll a, b, carotenoids and proline content in the plant tissues. This can be explained as an osmotic adjustment mechanism for the investigated species growing under high salinity stress.
对沙特阿拉伯东部地区达曼市附近阿拉伯湾沿海三个不同地点的[具体研究对象未给出]进行了形态、解剖和生理可塑性研究。形态学研究表明，在盐胁迫较高的地点（I），叶片裂片的大小和数量增加。使用光学显微镜进行的解剖学研究还表明，植物通过增加角质层或表皮层的增厚以及维管束面积的增加来适应盐胁迫。生理学研究表明，在高盐胁迫下生长的植物其特征在于电导率增加以及植物组织中叶绿素a、b、类胡萝卜素和脯氨酸含量增加。这可以解释为所研究物种在高盐度胁迫下生长的一种渗透调节机制。
