Articles
ANATOMICAL STRUCTURE STUDY OF AERIAL ORGANS IN FOUR POPULATIONS OF URTICA DIOICA
Article number
964_3
Pages
33 – 38
Language
English
Abstract
Urtica dioica is an Iranian native pharmacological plants for which little attention has been paid to the anatomical structure.
Medical applications of this plant include diabetes therapy, digestive improvement, and anima and kidney disease therapy.
Because climatic conditions can affect anatomical structure that affect pharmacological compositions, research on anatomy of the plant is needed.
In this research, plant samples were collected from populations near the cities of Brojerd, Mashad, Ghazvin, and Ramsar.
Trans-sections, made from stem, leaf, and petiole at the second internode, were stained using two staining methods.
Differences between stem, leaf, and petiole tissues confirmed that climatic factors produced differences among the populations in anatomical structure of aerial organs.
Noted differences included: 1- number and diameter of vascular bundles with five vascular bundles in Ghazvin population, five to seven vascular bundles in the Brojerd population, and four vascular bundles in populations in Mashad and Ramsar.
The Mashad and Ramsar populations differed in diameter; 2- protective tissue and thickness of chitin with plants from Ghazvin having more tissues because of lower thermal mean and mountain region; 3- diiferences in petiole diameter with the largest petiole diameter in the Mashad population and the smallest petiole diameter in the Ramsar population.
These observed differences in anatomy confirmed the effect of climate on differentiation in anatomical structure in Urtica dioica.
Medical applications of this plant include diabetes therapy, digestive improvement, and anima and kidney disease therapy.
Because climatic conditions can affect anatomical structure that affect pharmacological compositions, research on anatomy of the plant is needed.
In this research, plant samples were collected from populations near the cities of Brojerd, Mashad, Ghazvin, and Ramsar.
Trans-sections, made from stem, leaf, and petiole at the second internode, were stained using two staining methods.
Differences between stem, leaf, and petiole tissues confirmed that climatic factors produced differences among the populations in anatomical structure of aerial organs.
Noted differences included: 1- number and diameter of vascular bundles with five vascular bundles in Ghazvin population, five to seven vascular bundles in the Brojerd population, and four vascular bundles in populations in Mashad and Ramsar.
The Mashad and Ramsar populations differed in diameter; 2- protective tissue and thickness of chitin with plants from Ghazvin having more tissues because of lower thermal mean and mountain region; 3- diiferences in petiole diameter with the largest petiole diameter in the Mashad population and the smallest petiole diameter in the Ramsar population.
These observed differences in anatomy confirmed the effect of climate on differentiation in anatomical structure in Urtica dioica.
Authors
Z. Jafari, M. Dehghan
Keywords
nettle
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