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Structural-Adaptation Features of Assimilation Organs of the Species Salsola incanescens Cam. in Conditions of Kyzylkum

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American Journal of Plant Sciences 2024年第7期15卷 589-602页

作者： Guli A. Ibrokhimova guljan m. duschanova Department of Botany and Plant Physiology National University of Uzbekistan named after Mirzo Ulugbek Tashkent Uzbekistan Department of Botany and Ecology Tashkent State Pedagogical University named after Nizami Tashkent Uzbekistan

The article presents the results of the morpho-anatomical structure of the assimilation organs of the species Salsola leptoclada Gand, which is widespread in the Kyzylkum desert region of Uzbekistan, and reveals the structural, diagnostic and adaptive features. In the assimilation organs, Kranz type of mesophyll was found: in the cotyledons of the Kranz-spherical (Atriplicoid) type, and in the leaf—mesophylls of the Kranz-centric (Salsoloid) and Kranz-ventrodorsal type. These revealed diagnostic features of the assimilating organs of this species in arid conditions noted C4-type photosynthesis. Based on the comparative biometric analysis of quantitative indices of the anatomical features of the assimilating organs, xero-halomorphic features predominate. Halomorphic features are in the cotyledons—thin outer walls of the epidermal cells;few stomata of the anomocytic and paracytic type;few rows of spongy cells (3 - 4 rows);few vascular bundles of the collateral type and xylem, in the leaf—large and thin outer walls of the epidermal cells;succulence of the leaf mesophyll, the presence of aquiferous cells;large palisade, keratin and aquiferous cells. Xeromorphic features in the cotyledons—small and numerous epidermal cells and hemiparacytic type stomata also deep immersion;small palisade cells and a high palisade index, small spongy, hypodermal and keratin cells;small diameter of the xylem in vascular bundles;in the leaf numerous epidermal cells and stomata also deeply immersed;presence and numerous multicellular nodular, dentate trichomes;multi-row water-bearing cells;high palisade index;small and numerous xylem;numerous peripheral vascular bundles of the collateral type. These identified specific diagnostic features showing adaptation to arid conditions can also serve in the identification of plant materials.

关键词： morphology Anatomy Cotyledon Leaf Salsola incanescens South-West Kyzylkum

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Influence of the Interaction of the mutant Inl Gene and the Type of Fruiting Branches ss on the Anatomical Features of the Stem in the Indeterminate and Determinant Forms of G. hirsutumL.

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American Journal of Plant Sciences 2020年第4期11卷 538-548页

作者： Akmal A.Yuldashev guljan m.duschanova miradkham F.Abzalov Gayrat N.Jurakulov Department of Ecology and Botany of Andijan State University AndijanUzbekistan Tashkent Botanical Garden Named after Acad.F.N.Rusanova at the Institute of Botany of the Academy of Sciences of the Republic of Uzbekistan TashkentUzbekistan Institute of Genetics and Experimental Plant Biology Academy of Sciences of the Republic of UzbekistanTashkentUzbekistan

For the first time, a comparative analysis of the structure of the apical meristem and the node of the main shoot of two forms of the indeterminate kind Namangan-77 and the determinant line of Determinant-2 and Determinant-3 of G. hirsutum in the kidney ding phase was carried out. In the apical meristem of the indeterminate form Namangan-77 is characterized by the recessive homozygous state of the mutant gene (inlinl) and the dominant homozygous, heterozygous state of the fruiting branch gene S-s: inlinlSS, inlinlSs, inlinlss—more pronounced vegetative, vegetative, with this, this form is predominated by the continuation of first-order shoots and the monopodial branching type with unlimited apical growth, accompanied by a uniform elongation of the internodes. In the apical meristem, in the forms of the determinant lines, Determinant-2 and Determinant-3 are characterized by the dominant homozygous state of the mutant gene (InlInl) and the recessive homozygous state of the allelic gene (ss)—InlInlss—there is a generative collateral kidney in the axillary leaf axial sinus, which is why these forms of the vegetative apex of the shoot when they transit to the reproductive state turn into a floral apical meristem and a sympodial branching type what happens through the development of inflorescences. Obviously, this is a consequence of a change in the phytohormonal status in the apical part of the stem as a result of the interaction of the mutant gene Inl and gene S. The node of the main stem in all forms was also studied, and a three-beam-three-lacuna type of structure was revealed, which is a fairly persistent characterizing feature of large taxa and can be used in their taxonomy.

关键词： mutant Gene Allele Anatomy Stem Indeterminate Determinant monopodial Sympodial

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Structural Features of the Leaf and Fruit of the Emerald Variety Olea europaeaL., Growing under the Introduction Conditions of Surkhandarya

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American Journal of Plant Sciences 2020年第4期11卷 554-563页

作者： Sodikjon Kh. Abdinazarov guljan m. duschanova Tashkent Botanical Garden Named after Acad. F.N. Rusanova at the Institute of Botany of the Academy of Sciences of the Republic of Uzbekistan Tashkent Uzbekistan

For the first time, the anatomical structure of the leaf, petiole and fruit of the emerald variety Olea europaea, which grows under the conditions of introduction in the Oltinsay district of the Surkhandarya region of Uzbekistan, was studied. The following characteristic diagnostic features were determined: in the leaf—the dorsiventral type of leaf mesophyll;thick-walled outer walls of the epidermis;slightly sinuous outlines of the cells of the adaxial epidermis, rectilinear-abaxial;hypostomotic leaves;non-submerged stomata of the anomocytic type;thyroid silver-gray and white-fluffy star-shaped squamous-numerous on the adaxial epidermis than on the adaxial;chlorophyll-bearing palisade and spongy parenchyma;closed collateral type of conductive bundles;the most scleralized leaf due to the presence of filamentous scleroids in it (long, thin, resembling fibers);in the petiole—parenchymal-beam type of structure;the location of the angular collenchyma under the epidermis;closed collateral type of conductive bundles;the presence of thick-walled parenchymal cells and the presence of filiformscleroids;pericarp of the fetus consists of a rigid 1-layer exocarp, parenchymal mesocarp, and sclerenchymal endocarp;the presence of scleroids—stony cells and branched sclerenchymal fibers with drops of oil in the parenchymal cells. Diagnostic signs revealed by us reflect xeromorphic of this species. All the signs were compared, and we came to the conclusion that the anatomical signs of the leaf and the fetus can be useful for providing diagnostic signs for distinguishing the studied taxa, can be used in taxonomy, and can serve to identify plant materials.

关键词： Anatomy Leaf Petiole Pericarp of the Fetus Olea europaea Surkhandarya Region Uzbekistan

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Structural Features of Vegetative Organs Spiraea hypericifoliaL., Growing in Uzbekistan

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American Journal of Plant Sciences 2019年第11期10卷 2086-2095页

作者： Sakhobat U. Kuzieva Dilfuza A. Imomova guljan m. duschanova Jizzakh State Pedagogical Institute Jizzakh Uzbekistan Tashkent Botanical Garden Named after Academician F. N. Rusanova at the Institute of Botany of the Academy of Sciences of the Republic of Uzbekistan Tashkent Uzbekistan

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.

关键词： Anatomy Vegetative Organs Spiraea hypericifolia Jizzakh Region Uzbekistan

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Structural Features of the Vegetative Organs of Allium praemixtumVved. in Different Ecological Conditions

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American Journal of Plant Sciences 2019年第4期10卷 536-544页

作者： Akida T. Abdullaeva guljan m. duschanova muhabbat H. Ravshanova Laboratory Anatomy and Cytoembryology of the Tashkent Botanical Garden Named after Academician F. N. Rusanov Institute of Botany of the Academy of Sciences Tashkent Uzbekistan Department of Biology Educations Faculty of Natural Sciences Navoi State Pedagogical Institute Navoiy Uzbekistan

Central Asia is one of the main centers of origin of bulbous geophytes, including the family Amaryllidaceae Juss. The anatomical features of many endemic, red-book bulbous geophytes are still poorly understood. The article presents the results of a structural study of the inflated part of the stem (fistular), stem and pedicels of an endemic A. praemixtum species grow in two different environmental conditions in the Aktau mountain Nurata Range (Uzbekistan, Province Navoi) and in the conditions of introduction in the Tashkent Botanical Garden (Uzbekistan, Tashkent city). Diagnostic signs of vegetative organs were revealed and various combinations of xeromorphic and mesomorphic signs were determined. Comparative anatomical study of vegetative organs of A. praemixtum is of great theoretical and practical importance in relation to taxonomy and ecology.

关键词： Anatomy Vegetative Organs Allium praemixtum Navoi Region Introduction Tashkent Botanical Garden Uzbekistan

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The Anatomical Structure of Leaves and Thorns Plants Astragalus pterocephalusBunge, Growing in Uzbekistan

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American Journal of Plant Sciences 2020年第4期11卷 569-577页

作者： manzura A. Agzamova guljan m. duschanova Hasan A. Rakhmatov Abdulaziz A. Janibekov Institute of Plant Chemistry Named after Acad. S. Yu. Yunusov Academy of Sciences of the Republic of Uzbekistan Tashkent Uzbekistan Laboratory Anatomy and Cytoembryology of the Tashkent Botanical Garden Named after Academician F.N. Rusanov Institute of Botany of the Academy of Sciences Tashkent Uzbekistan

The results of a study conducted by light microscopy of the anatomical structure of the leaf and thorns of Astragalus pterocephalus growing in the natural habitat of the Amankutan mountains of the Samarkand region (Uzbekistan) are presented. The following diagnostic features were identified: leaf—isolateral-palisade type of mesophyll leaf;thick-walled outer walls of the epidermis;the outline of epidermal cells is rectilinear, the projection is polygonal;amphystomatic leaves;submerged numerous stomata of hemiparacitic and anomocytic type;chlorophyll-bearing palisade and spongy parenchyma;closed collateral type of vascular bundles and more sclerified, due to sclerenchymal cells. Thorn—parenchymal-beam type of structure;thin-walled outer walls of the epidermis;under the epidermis is a lamellar collenchyma;closed collateral type of vascular bundles and more sclerified, due to sclerenchymal cells. The complex of the above features reflects the species specificity of the structure of the leaf and spines. Identified and described features that can be used in the taxonomy of the studied tribes and can serve to identify plant materials.

关键词： Astragalus pterocephalus Anatomy Leaf Thorn Amankutan mountains Samarkand

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Comparative Study of the Anatomical Structure of Some Vegetative Organs Allium caspium(pall.) m. Bieb. and Allium tschimganicumB. Fedtsch. Ex Popov Growing in Natural Conditions of Uzbekistan

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American Journal of Plant Sciences 2020年第9期11卷 1398-1404页

作者： Akida T. Abdullaeva Nargiza K. Rakhimova guljan m. duschanova Eldor E. Temirov Laboratory Anatomy and Cytoembryology of the Tashkent Botanical Garden Named after Academician F.N. Rusanov Institute of Botany of the Academy of Sciences Tashkent Uzbekistan

The results of a comparative study of the structure of some vegetative organs of A. caspium and A. tschimganicum growing in natural conditions in Uzbekistan are presented for the first time. During the study of the desert representative A. caspium, the following diagnostic, structural features were revealed: ribbing of the peduncle and pedicel;thickening of the outer wall of the epidermis and wavy folding of the cuticle of the parenchymal-bundle type of structure;deep submergence of stomata: extensive core: thinness of the crustal parenchyma, the presence of lactic acid in it;the presence of a highly sclerified sclerinchymal ring between the crustal parenchyma and the central cylinder: the vastness of the core and the presence of hydrocytic cells in it, as well as the similarity of the structure of the stem and pedicel. In this species, a predominance of xeromorphic characters was noted, due to a tendency indicating xerophilizationmily:Verdana;"> and adaptation to desert conditio

关键词： Anatomy Stem Pedicel Allium caspium Allium tschimganicum Samarkand Region Tashkent Region Uzbekistan

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Anatomical Structure of Aboveground and Underground Organs of the Rare Endemic Species Iris (Juno) magnificavved., Growing under Natural Conditions of the Zeravshan Ridge, Samarkand mountains

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American Journal of Plant Sciences 2020年第9期11卷 1453-1466页

作者： Nargiza K. Rakhimova guljan m. duschanova Akida T. Abdullaeva Eldor E. Temirov Laboratory Anatomy and Cytoembryology of the Tashkent Botanical Garden Named after Academician F.N. Rusanov Institute of Botany of the Academy of Sciences Tashkent Uzbekistan

The morpho-anatomical structure of the aboveground and underground organs of the rare endemic species Iris (Juno) magnifica, growing under natural conditions of the Zeravshan ridge, Samarkand mountains, has been studied for the first time. A comparative analysis of the morpho-anatomical structure of the aboveground and underground organs revealed characteristic diagnostic signs of a microscopic structure. The complex of anatomical features of the aboveground and underground organs of the studied species are species-specific and can be used to solve taxonomic problems of this genus of plants, as well as the Red Book endemic species of junomily:Verdana;"> irises, are of particular interest in connection with the potential for their vegetative reproduction.

关键词： Anatomy Aboveground and Underground Organs Iris (Juno) magnifica Zeravshan Ridge Samarkand mountains

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Adaptive Features of Vegetative Organs Juno hippolyti(Vved.) Kamelin and J. narbuti(O. Fedtsch.) Vved. (Juno Tratt.) in the Conditions of the Kyzylkum Desert

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American Journal of Plant Sciences 2018年第9期9卷 1952-1962页

作者： guljan madrimbayevna duschanova Nargiza K. Rahimova Akida T. Abdullaeva Ergashali Yu Ruzmatov Dildora m. Yusupova Tashkent Botanical Garden Named after Academician F.N. Rusanov of the Institute of Botany of the Academy Sciences Tashkent Uzbekistan Department of Biology and Ecology of Andijan State University Andijan Uzbekistan

For the first time, the anatomical structure of the vegetative organs of the species J. hippolyti and J. narbuti was studied in the conditions of Kyzylkum (Uzbekistan, Province Bukhara) and revealed the diagnostic features of these species. A different combination of xeromorphic and mesomorphic features was determined, which ensures adaptation to habitat conditions. In J. narbuti xeromorphic features predominate, which indicates a more adaptable and wide distribution in the natural habitat of this species. In J. hippolyti—mesomorphic signs that show the rarity of the species in their natural habitat, compared to J. narbuti.

关键词： Anatomy Vegetative Organs J. hippolyti J. narbuti Kyzylkum

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The Anatomical Structure of Vegetative Organs Lavandula officinalisChaix in the Introduction of Tashkent Botanical Garden

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American Journal of Plant Sciences 2020年第4期11卷 578-588页

作者： Durdona K. Fakhriddinova Tashkhanim R. Rakhimova Feruza m. Dusmuratova guljan m. duschanova Sodikjon H. Abdinazarov Ismatjon N. Samadov Biological Faculty of the National University of Uzbekistan Named after m. Ulugbek Tashkent Uzbekistan Department of Pharmacognosy Tashkent Pharmaceutical Institute Tashkent Uzbekistan Tashkent Botanical Garden Named after Acad. F.N. Rusanova at the Institute of Botany of the Academy of Sciences of the Republic of Uzbekistan Tashkent Uzbekistan

The article presents the results of research carried out by light microscopy of the anatomical structure of vegetative organs (leaf, root and stem) Lavandula officinalis Chaix of the family Lamiaceae introduced into the conditions of the Tashkent Botanical Garden of the Republic of Uzbekistan. Our studies have shown that the presence or absence of trichomes can serve as an informative sign. In L. officinalis trichomes are simple unicellular two-terminal;three-terminal and multi-terminal. Lavender leaf hairs accumulate essential oils under the cuticle of secreting cells, the cuticle are tightly attached to the membranes of the secretory cells due to the absence of excretion products. Based on the results of a study of the morphological and anatomical features of the leaf of L. officinalis, it has been established that the forms of covering hairs and essential oil glands are of diagnostic value. In the epidermal, palisade and cortex parenchymal cells of the vegetative organs, yellow-orange essential (lavender) oil is noted. Identified diagnostic features that can be used in taxonomy and can be used to identify plant materials can also be used to develop indicators of authenticity in this type of raw material.

关键词： Anatomy Vegetative Organs Introduction L. officinalis Tashkent Botanical Garden

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