Gulchekhra Khakimovna Kadirova- Doctor of Philosophy
- Uzbekistan Academy of Sciences
Gulchekhra Khakimovna Kadirova
- Doctor of Philosophy
- Uzbekistan Academy of Sciences
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35
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Introduction
Current institution
Publications
Publications (35)
In this article, the effects of different concentrations of heavy metals Cu (II), Co(II) and Cd(II) cations and NaCl salt stress on the morphological characteristics, biomass, chlorophyll a, exopolysaccharides and phytohormones production capacity of native salt-tolerant nitrogen-fixing cyanobacteria Nostoc calcicola 25 and Anabaena variabilis 21 s...
It was found that high concentrations of copper (118 mg/l) and cobalt (285.5 mg/l) in the cultivation medium inhibit
the growth and development of the studied cultures Chlorella vulgaris 4 and Nostoc calcicola 25. Thus, at high concentrations
of copper and cobalt, the formation of biomass Chlorella vulgaris 4 and Nostoc calcicola 25 are reduced by...
More than 30 pure cultures of microorganisms were isolated from soils contaminated with heavy metals. The re-
sistance of the isolates to different concentrations of copper and cobalt ions was determined. The results of the experience
showed that the highest resistance was observed by 6 isolates on the 14th day of cultivation to the highest concent...
Changes in the morphology of bacteria under various stressful environmental conditions are considered one of the
mechanisms for their adaptation to external adverse effects. Morphological changes in microorganism cells are an early sign
of changes in some biochemical properties. In this study, the morphological, cultural, and biochemical properties...
The article discusses the resistance, susceptibility and adaptability, as well as the morphological and cultural char-
acteristics of strains of the genus Bacillus to various concentrations of heavy metal ions Cu2+, Co2+, Cd2+ and Pb2+. The
experimental results showed that on the 3rd day of cultivation at a concentration 30 times higher than the мa...
The ability of plant growth-promoting bacteria (PGPB) to interact with plants and clean up contaminated soil has
attracted a lot of attention in recent years. In this study, three rhizobacteria strains (Enterobacter ludwigi, Bacillus
simplex, and Bacillus licheniformis) were evaluated for their individual and combined synergistic effects in the
rem...
Cadmium (Cd) and nickel (Ni) are among the most toxic metals and high levels of
Cd and Ni in soil have been observed in several studies to slow down plant growth,
mainly biomass, chlorophyll content and photosynthetic properties. Beneficial soil
bacteria are promising targets for reducing Cd and Ni toxicity and increasing plant
tolerance to heavy m...
It is known that most of the irrigated agricultural lands are losing their productivity due to
soil salinity. This situation, in turn, has a negative impact on the amount of food products
grown in agriculture. Therefore, to alleviate this, it is necessary to use natural biopreparations
created on the basis of microorganisms free from chemical synth...
Hozirgi kunda tuproqning og'ir metallar bilan ifloslanishi atrof-muhitda metallarning
ko'payishi bilanbog`liq bo`lgan eng dolzarb ekologik muammolardan biridir. Biz zararlangan
tuproq namunalaridan 30 dan ortiq bakteriya va aktinomitset izolatlari toza kulturalarga ajratildi.
Ajratilgan kulturalar ozuqa muhitiga og'ir metal tuzlari sifatida qo`shil...
В настоящее время для биоремедиации окружающей среды от загрязняющих
веществ таких как полициклические и галогенированные ароматические
соединения, бензол, толуол, этилбензол, тяжелые металлы (ТМ) и т.д. широко
используются фотосинтетические бактерии. В этом контексте цианобактерии
показывают наиболее высокую чувствительность к повышенной концентра...
Оғир металлар билан ифлосланиш атроф-муҳит ва тирик организмлар енг жиддий таҳдидлардан биридир. Aтроф-муҳитни ифлослантирувчи моддалар орасида никел ва кадмийнинг ажралиши антропоген фаолиятлар хусусан қазилма ёқилғиларни ёқиш, энергия ишлаб чиқариш, тоғ-кон, эритиш, транспорт воситалари, маиший, коммунал ва саноатни утилизация қилиш, пўлат ишлаб...
Soil and nature contamination by heavy metals resulting from increased anthropogenic pressure associated with industry and agriculture poses a severe threat to environmental ecosystems and human populations. This study aims to assess and analyze the problem of heavy metal contamination using bibliometric methods to contribute to the evolution of kn...
Aнтагонистик фаолият бир турдаги микробнинг ривожланишини бошқа микроорганизмлар томонидан ўсишига қўймаслиги ёки ўсишини кечиктириши қобилияти сифатида қаралади. Шу билан бирга, бактерияларни биргаликда ўстириш антагонизмнинг намоён бўлиши ва антимикробиал моддалар ишлаб чиқаришнинг муҳим шартидир. Хусусан, штаммларни биргаликда ўстиришга асосланг...
Cadmium (Cd) and nickel (Ni) are among the most toxic metals and high levels of Cd and Ni in soil have been observed in several studies to slow down plant growth, mainly biomass, chlorophyll content and photosynthetic properties. Beneficial soil bacteria are promising targets for reducing Cd and Ni toxicity and increasing plant tolerance to heavy m...
Аннотация. Маколада микроорганизмларнинг маҳаллий N. сalcicola 25 ва A. chroococcum 44
штаммларини тузли стресс шароитларида ўстириладиган буғдой ўсимлиги уруғларига ишлов бериш
уруғларининг ўсиши ва ривожланишига ижобий таъсир кўрсатиши тадқиқ этилди. Натрий хлорид
тузининг 0,75 мМ ва 100 мМ концентрацияларида назорат вариантига қараганда N. сa...
Аннотация. В работе исследованы особенности стимулирования роста и развития стебля и корневой системы пшеницы (Triticum asativium L.) местного штамма цианобактерий Nostoc calcicola в условиях солевого стресса. Установлено положительное влияние отобранного солеустойчивого штамма N. calcicola на рост стебля и корневой системы пшеницы при достаточно в...
Целью исследования является изучение ростостимулирующих свойств
местных штаммов азотфиксирующих и энтомопатогенных бактерий: Azotobacter
chroococcum 44, Noctoc calcicola 25, Bacillus thuringiensis 1, Bacillus thuringiensis
94. мягкой пшеницы «Унумдор бугдой» (Triticum aestivum L.) с всхожестью не менее
90%. Для определения энергии прорастания счи...
Пшеница со ставляет примерно 29-30% мирового производства зерна и
самый важный растительный источник белка для человечества. В мире примерно 15% всех химических удобрений используется для выращивания пшеницы. В настоящее время во всем мире нарастает тенденция к использованию органических удобрений, чтобы избежать негативного воздействия химических...
АННОТАЦИЯ
В данной работе изучена ростостимулирующая способность штаммов A. chroococcum 44, N. calcicola 25, B. thuringiensis 1, B.thuringiensis 94. Показано, что обработка суспензией культур A. chroococcum 44, N. calcicola 25,
B. thuringiensis 1, B. thuringiensis 94 усиливает энергию прорастания, всхожесть и силу роста опытных семян пшеницы по ср...
Аннотация. Маколада микроорганизмларнинг маҳаллий N. сalcicola 25 ва A. chroococcum 44 штаммларини тузли стресс шароитларида ўстириладиган буғдой ўсимлиги уруғларига ишлов бериш уруғларининг ўсиши ва ривожланишига ижобий таъсир кўрсатиши тадқиқ этилди. Натрий хлорид тузининг 0,75 мМ ва 100 мМ концентрацияларида назорат вариантига қараганда N. сalci...
We investigated the degradation of hexachlorocyclohexane (HCH) in soil by two cyanobacteria isolates Anabaena variabilis N 21 and Nostoc calcicola N 25 under high concentrations of NaCl. After four months of incubation cultures in saline soils with 4% NaCl decreased HCH concentrations considerably from 2 µg/g soil to 14 ng/g soil, representing 1% o...
