Anatomy of salt excretory structures in certain halophytes in Egypt with a special reference to their re- naming and classification
Al- Nowaihi, A., Mourad, M. (2001). Anatomy of salt excretory structures in certain halophytes in Egypt with a special reference to their re- naming and classification. EKB Journal Management System, 21(1), 45-58. doi: 10.21608/taec.2001.12454
Abd El-Salam Al- Nowaihi; Magdy Mourad. "Anatomy of salt excretory structures in certain halophytes in Egypt with a special reference to their re- naming and classification". EKB Journal Management System, 21, 1, 2001, 45-58. doi: 10.21608/taec.2001.12454
Al- Nowaihi, A., Mourad, M. (2001). 'Anatomy of salt excretory structures in certain halophytes in Egypt with a special reference to their re- naming and classification', EKB Journal Management System, 21(1), pp. 45-58. doi: 10.21608/taec.2001.12454
Al- Nowaihi, A., Mourad, M. Anatomy of salt excretory structures in certain halophytes in Egypt with a special reference to their re- naming and classification. EKB Journal Management System, 2001; 21(1): 45-58. doi: 10.21608/taec.2001.12454

Anatomy of salt excretory structures in certain halophytes in Egypt with a special reference to their re- naming and classification

Taeckholmia
Article 5, Volume 21, Issue 1, 2001, Page 45-58  XML PDF (644.61 K)
Document Type: Original Article
DOI: 10.21608/taec.2001.12454
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Authors
Abd El-Salam Al- Nowaihi email 1; Magdy Mourad2
1Botany Department, Faculty of Science, Ain Shams University, Cairo-Egypt.
2Department of Botany, Faculty of Science, Ain Shams University, Cairo, Egypt.
Abstract
The anatomy of salt excretory structures was studied in 22 dicotyledonous and monocotyledonous halophytic
species; 13 of which were not previously investigated. The material was selected to represent obligate and
facultative, and succulent and non- succulent halophytes. Structural variations led to their re- naming and
classification. For more precise naming it was believed that one should differentiate between ‘glands’ that have
no ontogenic relation to the epidermis and the epidermal appendages, and convinced by this, the excretory
structures were classified into three types and two sub-types. It was also concluded that the presence of such
structures in facultative halophytes, where the concerned stress factor (salinity) is absent, makes it a hereditary
character resulting in an adaptive capacity for salt tolerance. Ectodesmata were recorded in the outer periclinal
walls of the epidermal cells in some species and were considered to be another mechanism for salt excretion.
Keywords
anatomy; ectodesmata; excretory structures; halophytes; salt glands
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