Taxonomical and Ethnobotanical Aspects of Allium Species from Middle Asia with Particular Reference to Subgenus Allium

2018 ◽  
pp. 11-21 ◽  
Author(s):  
Furkat O. Khassanov
Keyword(s):  
Allium Species ◽  
Middle Asia

Allium marmoratum (Amaryllidaceae), a new species of section Falcatifolia from Chimgan Massif, Eastern Uzbekistan

Phytotaxa ◽  
2015 ◽  
Vol 205 (3) ◽  
pp. 211 ◽  
Author(s):  
Alexey P. Seregin
Keyword(s):  
New Species ◽  
Allium Species ◽  
Middle Asia ◽  
Former Soviet Republics ◽  
A New Species

The former Soviet republics of Middle Asia are an important area of Allium Linnaeus (1753: 294) diversity. The latest checklist by Khassanov (2008) recorded 244 species and subspecies. At least 18 new species were described from Kazakhstan, Kyrgyzstan, Uzbekistan, and Tajikistan afterwards (Lazkov 2008, Fritsch 2009, Fritsch & Friesen 2009, Khassanov & Tojibaev 2009, 2010, Khassanov et al. 2009, 2011, 2013, Sennikov & Lazkov 2013, Tojibaev et al. 2014 , Seregin et al. 2015). Due to the high number of extremely rare local endemics, Allium species of this region are still underexplored. For instance, some collections in many herbaria are still remaining unnamed or bear provisional identifications.

NOTE ON TWO UMBELLIFERAE TAXA OF SOUTH-EASTERN KAZAKHSTAN, INVALIDLY PUBLISHED BY M. S. BAJTENOV, "БОТАНИЧЕСКИЙ ЖУРНАЛ"

2012 ◽  
pp. 650-658
Author(s):  
М.Г. ПИМЕНОВ ◽  
E.V. KLJUYKOV ◽  
G.V. DEGTJAREVA
Keyword(s):  
Rare Species ◽  
Monotypic Genus ◽  
Southern Limit ◽  
South Eastern ◽  
Middle Asia ◽  
New Material ◽  
Eastern Kazakhstan

New material on a rare species Silaum saxatilis (Umbelliferae) from southern limit of the Dzungarian Alatau (South-Eastern Kazakhstan) allowed to describe the structure of its fruits. The species is assigned to a distinct monotypic genus Tschulaktavia, the generic name was proposed by M. S. Bajtenov and validated here. Another speciens described by Bajtenov, Stenotaenia iliensis, is synonymized with Hyalolaena tshuiliensis. The genus Stenotaenia does not occus in Kazakhstan and the Middle Asia. 658

scholarly journals Vegetation Diversity of Screes and Taluses of The Pamir and South-Western Tian Shan in Middle Asia

2021 ◽  
Author(s):  
Arkadiusz Nowak ◽  
Sebastian Świerszcz ◽  
Sylwia Nowak ◽  
Marcin Nobis
Keyword(s):  
Species Composition ◽  
Arid Zone ◽  
Field Studies ◽  
Vegetation Diversity ◽  
Plant Associations ◽  
Middle Asia ◽  
Recent Developments ◽  
Phytosociological Relevés ◽  
High Degree ◽  
Tian Shan

AbstractThis paper presents the results of phytosociological research on scree vegetation of the Pamir and south-western Tian Shan. We collected 222 phytosociological relevés during field studies conducted in 2015–2019, applying the Braun-Blanquet approach. We identified 21 plant communities on mobile and stabilized screes of colluvial cones, aprons and fans, inhabiting mainly the montane and alpine belts in several ranges (e.g. Peter the First, Alichur, Shugnan, Shachdarian, Darvaz, Rushan, Vanch, Fergana, Kyrgyz and Terskey ranges). As a result we provide the first comprehensive hierarchical syntaxonomic synopsis of scree communities at montane and alpine elevations in the eastern Middle Asia. The collected vegetation relevés represent the majority of the variation among the phytocoenoses of gravel, pebble, cobble and rock block slides and screes in the montane and alpine belts. As a result of field studies and Twinspan analyses, nine associations were identified on screes of the Pamir and western Tian Shan. All these communities were assigned to the Sileno brahuicae-Lactucetalia orientalis Nowak et al. 2021. Additionally, within the nitrophilous compact gravel screes one subassociation of Corydalidetum kashgaricae trigonelletosum gontscharovii was distinguished. In the most arid zone two additional plant associations and one subassociation were identified in gravelly semi-deserts zone. The main factors determining the species composition of the studied associations are scree mobility, rock particle size, elevation above sea level and slope inclination. Our research revealed considerable diversity of scree habitats of montane and alpine belts what might be astonishing regarding harsh environment of this mountainous territory. However, a great number of lineages that evolved here and particularly rich species pool of this habitat in Middle Asia facilitate remarkable diversity among vegetation of taluses and screes. The distinctiveness of species composition is additionally enhanced by high degree of endemism of chasmophytic habitats in the eastern part of Middle Asia. Despite recent developments, the prominent chasmophytic vegetation of Middle Asia still needs thorough studies focused on its relationship to semi-desert, tall-forb and petrophytic communities of high mountains of the Pamir, Hindu-Kush, Kunlun and Central Tian Shan.

scholarly journals Effect of Allium senescens Extract on Sorafenib Resistance in Hepatocarcinoma Cells

2021 ◽  
Vol 11 (8) ◽  
pp. 3696
Author(s):  
Sohyeon Park ◽  
Yoonjin Park ◽  
Heejong Shin ◽  
Boyong Kim ◽  
Seunggwan Lee
Keyword(s):  
Drug Resistance ◽  
Hepg2 Cells ◽  
High Performance ◽  
Quantitative Polymerase Chain Reaction ◽  
Mitochondrial Apoptosis ◽  
Coumaric Acid ◽  
Allium Species ◽  
Hepatocarcinoma Cells ◽  
Polymerase Chain ◽  
Resistant Cells

Although Allium species are involved in bioactivity, to the best of our knowledge, there is no research on the effects of Allium senescens on drug resistance in hepatocarcinoma. Ultra-high performance liquid chromatography was used to determine the concentration of several bioactive compounds in A. senescens extract; flow cytometry, reverse transcription–quantitative polymerase chain reaction, and siRNA-mediated knockdown to estimate the levels of different markers in HepG2 cells. The quantity of p-coumaric acid in the extract was 4.7291 ± 0.06 μg/mL, and the protein of relevant evolutionary and lymphoid interest (PRELI) in the resistant cells decreased 2.1 times in the presence of p-coumaric acid. The resistant cells strongly downregulated the efflux transporters (ABCB1, ABCC2, and ABCG2) when exposed to the extract or p-coumaric acid and when PRELI was knocked down, in contrast to the influx proteins (OCT-1). Additionally, the extract induced mitochondrial apoptosis and suppressed autophagy. Consequently, the extract and p-coumaric acid attenuated drug resistance of HepG2 cells through the downregulation of PRELI, a key protein associated with the modulation of drug transporter expression, the activation of autophagy, and mitochondrial apoptosis. Our results indicate that A. senescens extract is beneficial in protecting cancer cells against drug resistance and sustaining the efficacy of sorafenib against liver cancer.

Grasslands and Shrublands of Kazakhstan and Middle Asia

2020 ◽  
pp. 750-758 ◽  
Author(s):  
Viktoria Wagner ◽  
Tatyana M. Bragina ◽  
Arkadiusz Nowak ◽  
Ilya E. Smelansky ◽  
Kim André Vanselow
Keyword(s):  
Middle Asia

The functional potential of nine Allium species related to their untargeted phytochemical characterization, antioxidant capacity and enzyme inhibitory ability

2021 ◽  
pp. 130782
Author(s):  
Gabriele Rocchetti ◽  
Leilei Zhang ◽  
Serena Bocchi ◽  
Gianluca Giuberti ◽  
Gunes Ak ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Allium Species ◽  
Inhibitory Ability ◽  
Functional Potential

Compounds from Allium species with cytotoxic and antimicrobial activity

2014 ◽  
Vol 13 (4) ◽  
pp. 769-791 ◽  
Author(s):  
Virginia Lanzotti ◽  
Felice Scala ◽  
Giuliano Bonanomi
Keyword(s):  
Antimicrobial Activity ◽  
Allium Species
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