TITLE:
Structural Features of Vegetative Organs Spiraea hypericifolia L., Growing in Uzbekistan
AUTHORS:
Sakhobat U. Kuzieva, Dilfuza A. Imomova, Guljan M. Duschanova
KEYWORDS:
Anatomy, Vegetative Organs, Spiraea hypericifolia, Jizzakh Region, Uzbekistan
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.10 No.11,
November
28,
2019
ABSTRACT: The results of a study conducted by light microscopy
methods of the anatomical structure of the vegetative organs of Spiraea hypericifolia growing in natural
habitat in the Bakhmal district in the south of the Jizzakh region of
Uzbekistan are presented and the following diagnostic features are identified: in
the leaf—isolateral-palisade type of mesophyll leaf;
thick-walled outer walls of the epidermis; amphystomatic leaves; not submerged
stomata; chlorophyll-bearing palisade and spongy parenchyma; open collateral
type of vascular bundles and sclerified, due to collenchymal cells; in the
stem and root—the beam type
of structure and more lignified; the stem and root are divided into three
topographic zones: the periderm (cork), the secondary cortex and the central
cylinder; the periderm is represented by a cork and its cells are dark brown,
thick-walled, tightly closed; groups of bast fibers are formed under the cow
parenchyma; extensive librimiform; core and radial rays elongated and short;
the phloem is extensive, located between the cortex parenchyma and libriform;
the narrow core is represented by large and small, round-oval, thin-walled parenchymal
cells and they contain hydrocytic cells. Diagnostic signs revealed by us
reflect more xeromorphic of this species. All traits were compared, and we
concluded that the anatomical traits of the leaf, stem, and root may be useful
in providing diagnostic traits for distinguishing the taxa studied.