TITLE:
Structural Features of the Vegetative Organs of Allium kysylkumi Kamelin. Growing in the Conditions of Kyzylkum
AUTHORS:
Dildora M. Yusupova, Muhabbat H. Ravshanova
KEYWORDS:
Anatomy, Leaf, Stem, Peduncle, Allium kysylkumi, Navoi Region (Kyzylkum), Uzbekistan
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.11 No.9,
September
27,
2020
ABSTRACT: The article presents the results of studies of the
anatomical structure of the vegetative organs of Allium kysylkumi of the
Amaryllidaceae family, which grows in the conditions of Kyzylkum (Kokchatau
outlier mountain). The characteristic diagnostic features have been determined:
the outer membrane of epidermal cells is well developed by the outer folded
cuticle, cutinized and more thickened; leaves are amphistomatic; stomata are
the most submerged, anomocytic type;
isolateral-palisade type of leaf mesophyll; the conducting bundles are closed, collateral and are arranged in two
rows, of which the upper side is represented only by small bundles, in the
lower row, 3 large bundles alternate with one small bundle; peduncle and
peduncle, parenchymal-beam type of structure; the epidermis is single-row, folded
cuticle with more thickened and cutinized; the crustal parenchyma is
thin-walled, round-oval, chlorophyll-bearing; the presence of lactic acid is in
the cow parenchyma; the primary cortex is separated from the central cylinder
by a ring of sclerenchyma; the central cylinder is extensive; closed
collateral-type conductive bundles. In the vegetative organs of Allium kysylkumi,
especially in the leaf, xeromorphic characters are pronounced, which indicates
the fitness of this species in natural habitat. The revealed structural
diagnostic signs of vegetative organs are species-specific, and show the adaptation of this species to its natural habitat, these
micromorphological signs are taxonomic significance for distinguishing and
identifying Allium species.