检索结果-内蒙古大学图书馆

Fronds micromorphology of anatomical parameters among selected ferns species in Uzbekistan

RENDICONTI LINCEI-SCIENZE FISICHE E NATURALI 2025年第1期36卷 293-301页

作者： Muminov, Dilshodjon Khaydarov, Khislat Zafar, Muhammad Rizwana, Humaira Elshikh, Mohamed Soliman Makhkamov, Trobjon Majeed, Salman Sultanovich, Islamov Boston Mukumov, Ilkhom Umurzakova, Zebiniso Hasanov, Murtoza Rasulova, Zebo Abdirasulov, Farrukh Norkulov, Masudjon Ptaszynska, Aneta A. Abdumuminova, Rano Samarkand State Univ Inst Biol & Chem Dept Bot Univ Blvd 15 Samarkand 140104 Uzbekistan Quaid & Azam Univ Islamabad Fac Biol Sci Dept Plant Sci Islamabad 45320 Pakistan King Saud Univ Coll Sci Dept Bot & Microbiol Riyadh 11451 Saudi Arabia Tashkent State Agrarian Univ Dept Forestry & Landscape Design Tashkent 100700 Uzbekistan Univ Mianwali Dept Bot Mianwali 42200 Pakistan Samarkand State Univ Inst Biochem Head Sci Lab Mol Biotechnol Herbarium Bot Res Univ Blvd 15 Samarkand 140104 Uzbekistan Marie Curie Sklodowska Univ Inst Biol Sci Fac Biol & Biotechnol Dept Immunobiol Akad 19 Str PL-20033 Lublin Poland Samarkand State Med Univ Dept Med Biol & Genet Amir Temur St 18A Samarkand 140100 Uzbekistan

This study explores the micromorphology with respect to fronds anatomical diversity of selected six species of ferns: Adiantum capillus-veneris L., Cystopteris fragilis (L.) Bernh., Asplenium ruta-muraria L., Asplenium trichomanes L., Asplenium ceterach L., and Dryopteris mindshelkensis Pavlov. Leaves were processed by immersing in 5% sodium hypochlorite to soften the tissues, followed by scraping to obtain transparent epidermal peels from both surfaces. The peels were stained with 1% safranin, rehydrated, mounted in glycerin, and analyzed under a light microscope for detailed measurements and visualization of epidermal cells (ECs), trichome structures, and stomatal morphotypes and dimensions on both abaxial and adaxial surfaces. A. capillus-veneris features irregular, angular ECs on the abaxial surface and more uniform, elongated ECs on the adaxial surface, with anomocytic stomata on both sides. C. fragilis shows polygonal ECs and paracytic stomata. A. ruta-muraria shows irregular, polygonal ECs abaxially and more regular, elongated ECs adaxially, with anomocytic stomata. A. trichomanes has varied EC shapes and abundant trichomes on the abaxial surface, with larger, more regular ECs and less frequent trichomes adaxially. A. ceterach exhibits heterogeneous, polygonal ECs with multicellular trichomes and distinct stomatal complexes on the abaxial surface. D. mindshelkensis represents irregular ECs with multicellular trichomes and prominent stomatal complexes on the lower surface, while the adaxial surface shows more uniform ECs and fewer, more oval stomata. The observed variations in EC shapes, stomatal types, and trichome micromorphology reflect adaptive strategies and functional adaptations in selected fern species, potentially influencing their ecological interactions and environmental responses to climate change.

关键词： Pteridophytes Phytotomy Microscopy Adaptation Stomatal complex

来源：评论

学校读者我要写书评

暂无评论

Electrochemical biosensors for early detection of Alzheimer's disease

引用

CLINICA CHIMICA ACTA 2025年 572卷 120278页

作者： Jakhonkulovna, Sanoeva Matlyuba Kamolovna, Gulnoz Bahodirova Zokirov, Muzaffar Tajimuratovna, Babajanova Umida Yumashev, Alexey Shichiyakh, Rustem Safarova, Nasiba I. Nusratovna, Aripova Nargiza Esanmuradova, Nilufar Karimbaevna, Tadjibaeva Muyassar Lazizakhon, Alidjanova Ishankulov, Alisher Bukhara State Med Inst Dept Neurol Bukhara Uzbekistan ISFT Inst Innovat & Sci & Pedag Personnel Training Int Sch F Dept Sci Res Toshkent Uzbekistan Fergana Med Inst Publ Hlth Fergana Uzbekistan Alfraganus Univ Dept Med Tashkent Uzbekistan Sechenov First Moscow State Med Univ Dept Prosthet Dent Med Moscow Russia Kuban State Agrarian Univ Dept Management Krasnodar Russia Samarkand State Med Univ Fac Postgrad Educ Dept Otorhinolaryngol Samarkand Uzbekistan Tashkent Med Acad Dept Internal Med & Endocrinol 2 Tashkent Uzbekistan Natl Res Univ Tashkent Inst Irrigat & Agr Mechanizat Engineers Tashkent Uzbekistan Western Caspian Univ Baku Azerbaijan Nukus State Pedag Inst Dept Zool Human Morphophysiol & Nutr Nukus Uzbekistan Int Islamic Acad Uzbekistan UNESCO Chair Religious Studies & Comparat Study Wo Kadiri St 11 Tashkent Uzbekistan Samarkand State Univ Samarkand Uzbekistan Kimyo Int Univ Tashkent Branch Samarkand Tashkent Uzbekistan

In recent years, electrochemical biosensors have shown great promise as innovative tools for the early identification of Alzheimer's disease (AD), a neurodegenerative disorder that severely affects cognitive ability and overall quality of life. This comprehensive review aims to consolidate the latest research on the creation and implementation of electrochemical biosensors designed to detect AD-related biomarkers. We examine cuttingedge approaches to surface modification that enhance the attachment of biorecognition molecules, thus enabling the simultaneous identification of multiple biomarkers. This review emphasizes the crucial role that electrochemical biosensors play in the early diagnosis of Alzheimer's disease, highlighting their potential to revolutionize clinical practices by facilitating timely interventions. In the future, research efforts should concentrate on refining these technologies for widespread clinical adoption, ensuring that they meet the needs of both healthcare professionals and patients.

关键词： Electrochemical biosensors Alzheimer's disease (AD) Biomarkers Early diagnosis

来源：评论

学校读者我要写书评

暂无评论

DESIGN AND SYNTHESIS OF RUPESTONIC ACID DERIVATIVESAND ASSESSMENT OF THEIR CYTOTOXIC ACTIVITY

引用

CHEMISTRY OF NATURAL COMPOUNDS 2025年第2期61卷 289-296页

作者： Zhu, R. Y. Bozorov, Kh. Aisa, H. A. Zhao, J. Y. Chinese Acad Sci Xinjiang Tech Inst Phys & Chem Key Lab Chem Plant Resources Arid Reg State Key Lab Basis Xinjiang Indigenous Med Plants Urumqi 830011 Peoples R China Univ Chinese Acad Sci Beijing 100049 Peoples R China Samarkand State Univ Chem Fac 15 Univ Blvd Samarkand 140104 Uzbekistan

Twenty novel rupestonic acid amides were designed and synthesized. Their cytotoxic activity was assessed against four human cancer cell lines (HeLa, HT-29, A549, and HepG2). Amide derivative 2e exhibited cytotoxic activity against A549 (IC50 = 4.73 mu M) and HT-29 cells (IC50 = 7.55 mu M);1a, against HeLa cells (IC50 = 13.95 mu M);1d, against HepG2 cells (IC50 = 11.12 mu M).

关键词： rupestonic acid structure modification cytotoxic activity

来源：评论

学校读者我要写书评

暂无评论

引用

JOURNAL OF NATURAL PRODUCTS 2025年第1期88卷 191-198页

作者： Cheng, Yan Akramov, Davlat Yakhshilikova, Lola Zhu, Chengwei Lu, Jie Suo, Jin Pugazh, Santhosh Qin, Hongjian Abduahadi, Safomuddin Qin, Jishan Hu, Tianwen Shen, Jingshan Yang, Feipu Aisa, Haji A. Chinese Acad Sci Shanghai Inst Mat Med State Key Lab Drug Res Shanghai 201203 Peoples R China Univ Chinese Acad Sci Beijing 100049 Peoples R China Samarkand State Univ Inst Biochem Samarkand 140104 Uzbekistan Vigonvita Life Sci Co Ltd Suzhou 215123 Jiangsu Peoples R China Chinese Acad Sci Xinjiang Tech Inst Phys & Chem State Key Lab Basis Xinjiang Indigenous Med Plants Key Lab Plant Resources & Chem Arid Zone Urumqi 830011 Peoples R China Vigonvita Shanghai Co Ltd Shanghai 201210 Peoples R China Chinese Acad Sci Xinjiang Tech Inst Phys & Chem State Key Lab Basis Xinjiang Indigenous Med Plants Urumqi 830011 Peoples R China Xinjiang Med Univ Sch Pharm Urumqi 830054 Peoples R China

The similar structures of natural compounds and the absence of NMR data for commercial products raise the risk of misidentification. This work reports a case in which purchased samples labeled as "berbamine" from 14 suppliers are oxyacanthine (1). The NMR data of all purchased samples were consistent. The X-ray crystallography characterization of one sample revealed it to be 1. The NMR data of 1 were fully assigned for the first time. Berbamine (2) was isolated from the roots of Berberis sieboldii Miq. The NMR data of 2 were assigned, and its crystal structure was reported for the first time. The authors intend to raise awareness and support the academic/industrial community through a study of this misidentification case.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Pollen patterns and morphological variability unraveling cyperaceae diversity through palynological traits

引用

GENETIC RESOURCES AND CROP EVOLUTION 2025年第4期72卷 4107-4131页

作者： Niazi, Umber Rubab Zafar, Muhammad Al-Ghamdi, Abdullah Ahmed Almunqedhi, Bandar Mohsen Makhkamov, Trobjon Abduganievna, Norimova Guljakhon Bakhramov, Inomjon Zhalov, Kholmurod Anvarbekov, Islombek Yaxshibekova, Gulhayo Majeed, Salman Jabeen, Shaista Ptaszynska, Aneta A. Quaid i Azam Univ Islamabad Dept Plant Sci Islamabad 45320 Pakistan King Saud Univ Coll Sci Dept Bot & Microbiol Riyadh 11451 Saudi Arabia Tashkent State Agr Univ Dept Forestry & Landscape Design 2 AUniv Str Tashkent 100700 Uzbekistan Gulistan State Univ Int Affairs Dept Guliston Uzbekistan Navoi State Pedag Inst Dept Biol Navoi Uzbekistan Samarkand State Univ Dept Bot Univ BlvdBldg 15 Samarkand Uzbekistan Tashkent State Agr Univ Dept Med Plants 2 AUniv Str Tashkent 100700 Uzbekistan Univ Mianwali Dept Bot Mianwali 42200 Pakistan Marie Curie Sklodowska Univ Inst Biol Sci Fac Biol & Biotechnol Dept Immunobiol Akad 19 Str PL-20033 Lublin Poland

This study on pollen patterns and morphotypes variations in selected Cyperaceae species offers valuable understanding into the evolutionary linkages and floral diversity within this plant family, helping to improve their taxonomic classifications. Pollen of 23 species of Cyperaceae collected from different areas of Pakistan were examined to evaluate the palynological data under light microscopy (LM) and scanning electron microscopy (SEM). Microscopic detailed pollen structures of species;Cyperus rotundus, Cyperus alternifolius (flabelliformis), Cyperus niveus, Bolboschoenus glaucus, Scirpus maritimus (affinis), Fimbristylis bisumbellata, Cyperus longus, Cyperus laevigatus, Cyperus difformis, Carex flacca, Schoenoplectus litoralis, Cyperus esculentus, Cyperus compressus, Cyperus pygmaeus, Fuirena pubescens, Cyperus haspan, Cyperus nutans, Schoenoplectus lacustris, Kylinga brevifolia, Cyperus flavescens, Cyperus iria, Cyperus exaltatus and Cyperus malaccensis were observed. Pollen grains of Cyperaceae were mostly large and there are also medium and small sized grains. Pollen grains of Cyperaceae are semi-angular, sub-angular and angular in shapes in polar view and prolate, pear shaped, spheroidal and prolate-spheroidal in equatorial view. Pollen apertures were mostly sunken, and few raised. Colpi were not visible under light microscopy except in few species. Heteropolar, polar, sub- isopolar and cryptopolar type of pollen were visualized. Apertures of Cyperaceae species were colpate, dicolpate, tricolpate, colporate, dicolporate, porate and tetraporate. Pollen sculpturing was scabrate and granulate and few species also showing foveolate patterns. Psilate verrucate, scabrate and gemmate exine ornamentation were examined. Principal component analysis and cluster analysis was performed to compare, illustrate, and characterize Cyperaceous species quantitative pollen data to study the variance correlation. This study reveals that Cyperaceae palyno-morphological micromorpho

关键词： Conservation Microscopy Pollinators Sedges Taxonomy

来源：评论

学校读者我要写书评

暂无评论

Regulation of Apoptotic Pathways by MicroRNAs: A Therapeutic Strategy for Alzheimer's Disease

引用

MOLECULAR NEUROBIOLOGY 2025年 1-37页

作者： Saadh, Mohamed J. Muhammad, Faris Anad Alazzawi, Tuqa S. Fahdil, Ali A. Athab, Zainab H. Tuxtayev, Jamshid Alsaikhan, Fahad Farhood, Bagher Middle East Univ Fac Pharm Amman 11831 Jordan Al Noor Univ Coll Dept Pharm Nineveh Iraq Natl Univ Sci & Technol Coll Dentist Dhi Qar Iraq Al Farahidi Univ Med Tech Coll Baghdad Iraq Al Zahrawi Univ Coll Dept Pharm Karbala Iraq Samarkand State Med Inst Fac Pediat Dept Surg Dis Samarkand Uzbekistan Prince Sattam Bin Abdulaziz Univ Coll Pharm Alkharj Saudi Arabia Ibn Sina Natl Coll Med Studies Sch Pharm Jeddah Saudi Arabia Kashan Univ Med Sci Fac Paramed Sci Dept Med Phys & Radiol Kashan Iran

Alzheimer's disease (AD) is a prevalent neurodegenerative disorder marked by a gradual decline in memory and cognitive functions. It is characterized by the presence of senile plaques, neurofibrillary tangles, and neuronal degeneration, affecting a significant portion of the human population. A key feature of various nervous system disorders, including AD, is extensive cellular death caused by apoptosis, which affects not only neurons but also glial cells. While apoptosis plays a vital role in eliminating certain cells and supporting normal development, alterations or disruptions in apoptotic pathways can lead to harmful neurodegenerative conditions such as AD. Thus, targeting apoptosis presents a promising therapeutic approach for these diseases. MicroRNAs (miRNAs), a class of non-coding RNA, play diverse roles in cellular functions, including proliferation, gene expression regulation, programmed cell death, intercellular communication, and angiogenesis. By modulating regulatory genes, miRNAs can influence apoptosis, either promoting or inhibiting it. Aberrant expression of miRNAs can impact multiple apoptotic pathways, potentially driving the progression of AD and related health issues. This review summarizes recent research on miRNAs and their dual role in exacerbating or protecting against neural cell damage in AD by altering apoptotic pathways. The regulation of apoptosis by miRNAs offers a prospective therapeutic strategy for Alzheimer's disease.

关键词： Apoptosis Alzheimer's disease MicroRNAs Non-coding RNAs

来源：评论

学校读者我要写书评

暂无评论

Role of circRNAs in regulating cell death in cancer: a comprehensive review

引用

CELL BIOCHEMISTRY AND BIOPHYSICS 2025年第1期83卷 109-133页

作者： Saadh, Mohamed J. Ehymayed, Hadi Mohammed Alazzawi, Tuqa S. Fahdil, Ali A. Athab, Zainab H. Yarmukhamedov, Bekhzod Al-Anbari, Hayder Hamid Abbas Shallal, Mohammed Mohsin Alsaikhan, Fahad Farhood, Bagher Middle East Univ Fac Pharm Amman 11831 Jordan Al Noor Univ Coll Dept Med Lab Tech Nineveh Iraq Natl Univ Sci & Technol Coll dentist Dhi Qar Iraq Al Farahidi Univ Med Tech Coll Baghdad Iraq Al Zahrawi Univ Coll Dept Pharm Karbala Iraq Tashkent State Dent Inst Dept Oral Surg & Dent Implantol Tashkent Uzbekistan Samarkand State Med Univ Dept Sci affairs Samarkand Uzbekistan Ahl Al Bayt Univ Coll Pharm Kerbala Iraq Gilgamesh Ahliya Univ Baghdad Iraq Prince Sattam Bin Abdulaziz Univ Coll Pharm Alkharj Saudi Arabia Ibn Sina Natl Coll Med Studies Sch Pharm Jeddah Saudi Arabia Kashan Univ Med Sci Fac Paramed Sci Dept Med Phys & Radiol Kashan Iran

Despite multiple diagnostic and therapeutic advances, including surgery, radiation therapy, and chemotherapy, cancer preserved its spot as a global health concern. Prompt cancer diagnosis, treatment, and prognosis depend on the discovery of new biomarkers and therapeutic strategies. Circular RNAs (circRNAs) are considered as a stable, conserved, abundant, and varied group of RNA molecules that perform multiple roles such as gene regulation. There is evidence that circRNAs interact with RNA-binding proteins, especially capturing miRNAs. An extensive amount of research has presented the substantial contribution of circRNAs in various types of cancer. To fully understand the linkage between circRNAs and cancer growth as a consequence of various cell death processes, including autophagy, ferroptosis, and apoptosis, more research is necessary. The expression of circRNAs could be controlled to limit the occurrence and growth of cancer, providing a more encouraging method of cancer treatment. Consequently, it is critical to understand how circRNAs affect various forms of cancer cell death and evaluate whether circRNAs could be used as targets to induce tumor death and increase the efficacy of chemotherapy. The current study aims to review and comprehend the effects that circular RNAs exert on cell apoptosis, autophagy, and ferroptosis in cancer to investigate potential cancer treatment targets.

关键词： Cancer Circular RNAs Apoptosis Autophagy Ferroptosis

来源：评论

学校读者我要写书评

暂无评论

Nitrogen and Phosphorus Utilisation by Intercropping Narrowleaf Lupins With Cereals Under Differentiated Nitrogen Fertilization

引用

JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION 2025年 1-14页

作者： Gorski, Rafal Plaza, Anna Niemiec, Marcin Komorowska, Monika Abduvasikov, Abduaziz Ishniyazova, Shakhista Ignacy Moscicki Univ Appl Sci Ciechanow Fac Engn & Econ Narutowicza 9 PL-06400 Ciechanow Poland Univ Siedlce Inst Agr & Hort Fac Agr Sci B Prusa 14 PL-08110 Siedlce Poland Agr Univ Krakow Dept Agr & Environm Chem Al Mickiewicza 21 PL-30120 Krakow Poland Tashkent State Agrarian Univ Univ Kochasi 2 Tashkent 100142 Uzbekistan Samarkand State Univ Vet Med Fac Proc Technol & Prod Standardizat Livestock & B Dept Proc Technol Standardizat & Certificat Agr Pr Univ Blvd 15 Samarkand 140103 Uzbekistan

The aim of the field research was to evaluate the content and uptake of nitrogen and phosphorus, as well as the efficiency of nitrogen use and apparent phosphorus balance in the intercropping of narrowleaf lupine with cereals at variable rates of mineral nitrogen fertilization. Field research was conducted in central Europe in 2021-2023 in a temperate climate. Two factors were analyzed: share of components in the sowing: narrowleaf lupine (NL) 120;spring barley (SB) 300;I1 - NL 30 + SB 225;I2 - NL 60 + SB 150;I3 - NL 90 + SB 75;spring triticale (ST) 450;I4 - NL 30 + ST 340;I5 - NL 60 + ST 225;I6 - NL 90 + ST 115 seeds m- 2;mineral fertilization with nitrogen 0, 20, 40, 60 kg N ha- 1. The content and uptake of nitrogen and phosphorus in the intercropping increased with an increase in the proportion of narrowleaf lupine relative to cereals. The highest nitrogen content and nitrogen and phosphorus uptake were obtained with fertilization at 40 and 60 kg N ha- 1, while phosphorus content was obtained at 60 kg N ha-1. Nitrogen use efficiency and apparent phosphorus balance were most favorable with intercropping with a predominance of legumes and fertilization at 40 and 60 kg N ha- 1. The most favorable results were obtained when narrowleaf lupine was intercropped with spring barley at seeding 60 + 150 or 90 + 75 seeds m- 2 and narrowleaf lupine with spring triticale at a sowing rate of 60 + 225 or 90 + 115 seeds m- 2 and fertilization 40 kg N ha- 1.

关键词： Legumes Cereals Green fodder Nitrogen use efficiency Phosphorus apparent balance

来源：评论

学校读者我要写书评

暂无评论

High-efficiency fiber-shaped dye-sensitized solar cells with cost-effective ZnCo2O4/Carbon fiber counter electrodes for low-light environments

引用

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING 2025年 192卷

作者： Hayek, Saleh Saad Yousef Fayzullaev, Normurot Asiri, Mohammed Kanjariya, Prakash Rekha, M. M. Pathak, Piyus Kumar Aggarwal, Tushar Abass, Mayada Ahmed Yaqob, Mohammed Univ Tabuk Fac Engn Mech Engn Dept POB 741 Tabuk 71491 Saudi Arabia Samarkand State Univ Dept Polymer Chem & Chem Technol Samarkand 140101 Uzbekistan King Khalid Univ Coll Appl Med Sci Dept Clin Lab Sci Abha Saudi Arabia Marwadi Univ Res Ctr Fac Sci Dept Microbiol Rajkot 360003 Gujarat India JAIN Sch Sci Dept Chem & Biochem Bangalore Karnataka India NIMS Univ Rajasthan NIMS Inst Engn & Technol Dept Appl Sci Chem Jaipur Rajasthan India Chitkara Univ Inst Engn & Technol Ctr Res Impact & Outcome Rajpura 140401 Punjab India Al Mustaqbal Univ Coll Pharm Babylon 51001 Iraq Mazaya Univ Coll Med Lab Technol Dhiqar Iraq

Fiber-shaped dye-sensitized solar cells (FDSSCs) represent a promising frontier in solar energy due to their unique flexibility, lightweight form, and adaptability for wearable electronics and integrated textile-based applications. In this study, we aim to enhance the efficiency and cost-effectiveness of FDSSCs by developing a platinum-free counter electrode that maintains high performance under various light conditions. We utilized the hydrothermal method to grow ZnCo2O4 (ZCO) nanostructures on carbon fibers (CF), forming a composite (CF/ ZCO) counter electrode as a sustainable alternative to platinum, traditionally used but costly and prone to stability issues. Our FDSSCs with CF/ZCO counter electrodes achieved an efficiency of 8.3 %, demonstrating an 8 % improvement over conventional platinum electrodes. Importantly, these cells retained excellent performance under low-light conditions, achieving more than 9 % efficiency, making them highly suitable for indoor and wearable applications. The high electrocatalytic activity of the CF/ZCO counter electrode was confirmed through electrochemical analyses (EIS, CV, and Tafel polarization), indicating superior charge transport properties over Pt. Structural and morphological characterizations (XRD, Raman, FESEM, HRTEM, and EDS) confirmed the uniformity and quality of the CF/ZCO nanostructures. By replacing platinum with low-cost, non-toxic ZCO, this study contributes to the advancement of sustainable, flexible solar technologies, paving the way for FDSSCs to power next-generation wearable and integrated devices.

关键词： FDSSC Carbon fiber Nanocomposite Wearable solar cells

来源：评论

学校读者我要写书评

暂无评论

Histological analysis of petiole structure in Euphorbiaceae species for taxonomic classification

引用

GENETIC RESOURCES AND CROP EVOLUTION 2025年第2期72卷 1961-1983页

作者： Majeed, Salman Zafar, Muhammad Elshikh, Mohamed S. Ali, M. Ajmal Ahmad, Mushtaq Mir, Asif Makhkamov, Trobjon Athar, Mohammad Islamov, Sokhib Nazish, Moona Khaydarov, Khislat Nizomova, Maxsuda Fatima, Anam Khan, Muhammad Rizwan Univ Mianwali Dept Bot Mianwali 42200 Pakistan Quaid i Azam Univ Dept Plant Sci Islamabad 45320 Pakistan King Saud Univ Coll Sci Dept Bot & Microbiol Riyadh 11451 Saudi Arabia Neijiang Normal Univ Coll Life Sci Neijiang 641000 Peoples R China Int Islamic Univ Dept Biol Sci FOS Islamabad Pakistan Tashkent State Agr Univ Dept Forestry & Landscape Design 2 A Univ Str Tashkent 100700 Uzbekistan Calif Dept Food & Agr Pest Detect Emergency Projects 1220 N St2Nd Floor Sacramento CA 95814 USA Tashkent State Agr Univ Dept Technol Storage & Proc Agr Prod 2 A Univ Str Tashkent 100700 Uzbekistan Tashkent State Agr Univ Dept Med Plants 2 A Univ Str Tashkent 100700 Uzbekistan Samarkand State Univ Inst Biochem Blvd 15 Samarkand 140104 Samarkand Uzbekistan

The current study was carried out to describe the taxonomic microanatomical traits of petiole micromorphology of Euphorbiaceous species inhabited in desert rangeland. The petioles were sectioned using a Shandon Microtome and observed under a microscope to assess both qualitative features (shape, size, and arrangement of cells) and quantitative features (cell dimensions and tissue proportions). Eight Euphorbiaceous species were examined for petiole micromorphological characteristics including shape and size of the petiole, collenchyma cells, parenchyma cells, epidermal cells, and number and shape and arrangements of vascular bundles. The maximum petiole length was measured for Euphorbia helioscopia L. (330 mu m). Maximum 9 numbers of vascular bundles were observed in Euphorbia serpens Kunth. Winged petiole was examined in three species of Chrozophora plicata (Vahl) ***. ex Spreng., Chrozophora tinctoria (L.) ***., and Croton bonplandianus Baill. In Euphorbia hirta L. and Euphorbia serpens Kunth. Trichomes were present non-glandular and unicellular. Euphorbiaceous species were also diagnosed using micro-petiole traits with the help of taxonomic key. The statistic tool via PAST3 software using dendrogram clustering and principal component analysis was used for the accurate species delimitation. The explored microanatomical features were used to distinguish the Euphorbiaceous species significant for further phylogenetic interpretation.

关键词： Euphorbiaceae Histology Systematics Adaptation Evolution

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：