MORPHO-ANATOMICAL STRUCTURE OF LEAVES, BRACTS

This book analyzes the morphoanatomical structure of the leaves of some plant species of the genus Asanthophyllum C.A.Mey, common in different habitats. The morphology of leaf hairs of 25 plant species, many of which were taken from 2-4 geographical points of their range, was studied to determine the influence of environmental conditions on the type, morphology and extent of growth.The anatomical structure of the root of Acanthophyllum albidum Schischk, growing in different regions of the Fergana Valley, and the amount of saponin contained in the root are considered. The higher the degree of sclerification of root xylem in plants, the less saponins are present. The accumulation of saponins in the root is directly related to the level of its parenchyma, and based on this, this sign can be used as an express method for determining the amount of saponins in the root.The life forms of some species of the genus Acanthophyllum, their analysis and the development of the concept of their evolution are also described.

Autorentext
Ruzmatov E.Y: PhD, Biology, Department of Ecology and botany Andijan State University, Associate professor, Uzbekistan.Tukhtaboeva F. M: PhD, Biology, Department of Genetics Andijan State University, Associate professor, Uzbekistan.Tuychieva D. S: PhD, Biology, Department of Genetics Andijan State University, Professor, Uzbekistan.