Izvestiya of Saratov University. New Series. Series: Chemistry. Biology. Ecology最新文献_第9页

Study of the relationship between geometric isomerism and biologically active properties of compounds 化合物几何同分异构与生物活性关系的研究

Izvestiya of Saratov University. New Series. Series: Chemistry. Biology. Ecology Pub Date : 2021-12-16 DOI: 10.18500/1816-9775-2021-21-4-405-414

A. G. Gasanov, I. G. Ayyubov, G. E. Hajiyeva, F. S. Qurbanova

{"title":"Study of the relationship between geometric isomerism and biologically active properties of compounds","authors":"A. G. Gasanov, I. G. Ayyubov, G. E. Hajiyeva, F. S. Qurbanova","doi":"10.18500/1816-9775-2021-21-4-405-414","DOIUrl":"https://doi.org/10.18500/1816-9775-2021-21-4-405-414","url":null,"abstract":"The results of the research in the field of studying the relationship of the geometric structure of organic compounds with their biological activity are presented. It has been shown that the stereospecific structure of organic and inorganic molecules can have a direct effect on the biologically active properties of substances. Among the known types of stereoisomerism (geometric and optical), this work summarizes the effect of various types of geometric isomerism on the bioactivity of compounds. In addition, the results of the authors’ own research are presented. In particular, the results of studying the antimicrobial and antifungal activity of hydroxyalkyl monoesters of norbornedicarboxylic acid depending on their stereoisomeric forms in relation to various pathogenic microorganisms are shown. The studies were carried out by the serial dilution method. As nutrient media, we used MPA pH 7,2–7,4 for bacteria and Sabouraud’s medium for fungi. The incubation time in a thermostat for bacteria was 18–24 hours at 37ºC, for fungi 1–10 days at 28ºC. It has been noted that the endo-isomers of the synthesized compounds have a higher antimicrobial and antifungal activity against grampositive (Staphylococcus aureus), gramnegative (Escherichia coli, Pseudomonas aeruginosa) bacteria, as well as yeast-like fungi of the genus Candida. Based on the obtained test reports, the synthesized compounds have been recommended for use as local antiseptic preparations.","PeriodicalId":14627,"journal":{"name":"Izvestiya of Saratov University. New Series. Series: Chemistry. Biology. Ecology","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82081758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Genus Alchemilla L. (Rosaceae) in the Flora of Chuvashia 标题楚瓦希亚植物区系中的炼金属(蔷薇科)

Izvestiya of Saratov University. New Series. Series: Chemistry. Biology. Ecology Pub Date : 2021-12-16 DOI: 10.18500/1816-9775-2021-21-4-421-433

A. Chkalov, M. M. Gafurova

引用次数: 0

Vegetation of the natural monument “Urochishche Kuzilinka” and its surroundings (Orel region) 奥廖尔地区“乌鲁奇什什库兹林卡”自然纪念地及其周边植被

Izvestiya of Saratov University. New Series. Series: Chemistry. Biology. Ecology Pub Date : 2021-12-16 DOI: 10.18500/1816-9775-2021-21-4-434-449

E. Averinova, M. Kazakova, Anastasia S. Kugusheva, Nikolai A. Sobolev

引用次数: 0

Study of the diffusion process in films sodium salt of carboxymethyl cellulose – drug 羧甲基纤维素钠盐-药物在薄膜中的扩散过程研究

Izvestiya of Saratov University. New Series. Series: Chemistry. Biology. Ecology Pub Date : 2021-12-16 DOI: 10.18500/1816-9775-2021-21-4-382-390

A. Shurshina, E. Kulish

{"title":"Study of the diffusion process in films sodium salt of carboxymethyl cellulose – drug","authors":"A. Shurshina, E. Kulish","doi":"10.18500/1816-9775-2021-21-4-382-390","DOIUrl":"https://doi.org/10.18500/1816-9775-2021-21-4-382-390","url":null,"abstract":"The transport properties of medicinal films based on sodium salt of carboxymethylcellulose and the antibiotic amikacin sulfate have been studied in this work. It has been shown that the process of sorption of water vapor by such films and the release of a drug from them proceeds in an abnormal diffusion mode, which is explained by the slowdown of relaxation processes in glassy polymers, which include the sodium salt of carboxymethylcellulose. An increase of the amount of the introduced drug is accompanied by a regular decrease in the diffusion coefficients of both the process of sorption of water vapor and the release of amikacin from the films. It is noted that the formed films of sodium salt of carboxymethylcellulose-amikacin sulfate dissolve in water during the day and do not provide a prolonged release of the drug. To reduce the solubility of the films in water, the surface modification of the polymer film with calcium chloride has been carried out. It has been found that the modification does not lead to a change in the diffusion mode, but is accompanied by a regular change in the diffusion coefficients – the longer the formed films were kept in a calcium chloride solution, the lower the diffusion coefficients of the sorption of water vapor by medicinal films and the diffusion coefficients of the release of the drug amikacin from the film. It is argued that the surface modification of polymer films based on the sodium salt of carboxymethylcellulose is an effective way of imparting to them the effect of prolonging the release of a drug.","PeriodicalId":14627,"journal":{"name":"Izvestiya of Saratov University. New Series. Series: Chemistry. Biology. Ecology","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87280146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The structure of productivity elements of durum wheat varieties of Saratov selection 萨拉托夫选育硬粒小麦品种生产力要素结构

Izvestiya of Saratov University. New Series. Series: Chemistry. Biology. Ecology Pub Date : 2021-12-16 DOI: 10.18500/1816-9775-2021-21-4-450-456

E. G. Hachaturov, V. V. Korobko

{"title":"The structure of productivity elements of durum wheat varieties of Saratov selection","authors":"E. G. Hachaturov, V. V. Korobko","doi":"10.18500/1816-9775-2021-21-4-450-456","DOIUrl":"https://doi.org/10.18500/1816-9775-2021-21-4-450-456","url":null,"abstract":"The objects of the study were plants of 14 varieties of durum wheat Triticum durum Desf., permitted for use at different times in the period from 1975 to 2014. An analysis of the elements of ear productivity in durum wheat plants of Saratov varieties under the conditions of 2020 was carried out. The varietal features of the development of the spike of the main shoot were revealed according to a number of characteristics: the number of spikelets in a spike, the number of grains in an ear, the weight of a grain, the number of ungrained and grained spikelets. The height of the plant and the length of the spike were measured. On the basis of the data obtained, the selection indices were calculated – the Canadian index, the Mexican index, the index of the linear density of the ear, the morphogenetic index of productivity. A cultivar with a balanced type of morphogenetic systems was revealed in terms of the elements of ear productivity – the number of spikelets, the number of caryopses and their weight – Luch 25. This cultivar is characterized by the most developed embryonic shoot among the studied cultivars, as well as the maximum length of the embryonic root system and a high growth rate root system of the seedling.","PeriodicalId":14627,"journal":{"name":"Izvestiya of Saratov University. New Series. Series: Chemistry. Biology. Ecology","volume":"124 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80430026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reuse of a purified solution of cetyltrimethylammonium bromide for the synthesis of gold nanorods 十六烷基三甲基溴化铵纯化溶液在金纳米棒合成中的再利用

Izvestiya of Saratov University. New Series. Series: Chemistry. Biology. Ecology Pub Date : 2021-12-16 DOI: 10.18500/1816-9775-2021-21-4-391-398

Y. D. Gudova, V. Kochubey, A. Skaptsov

引用次数: 0

Economic and biological characteristics of the biotypical composition of spring wheat varieties 春小麦品种生物典型组成的经济和生物学特性

Izvestiya of Saratov University. New Series. Series: Chemistry. Biology. Ecology Pub Date : 2021-12-16 DOI: 10.18500/1816-9775-2021-21-4-457-465

I. S. Brailova, Natalya I. Yurieva, Y. Belousova

{"title":"Economic and biological characteristics of the biotypical composition of spring wheat varieties","authors":"I. S. Brailova, Natalya I. Yurieva, Y. Belousova","doi":"10.18500/1816-9775-2021-21-4-457-465","DOIUrl":"https://doi.org/10.18500/1816-9775-2021-21-4-457-465","url":null,"abstract":"The aim of this work is to study the component composition and intravarietal polymorphism of storage proteins of three soft and one hard varieties of spring wheat and their relationship with a complex of economically valuable traits. The studies were carried out in 2018–2020 by the department of genetics and immunity at the institute, in the conditions of the southeast of the Central Black Earth Region. In the course of the work, the identification of gliadin biotypes was carried out by electrophoresis in 6.5% polyacrylamide gel, the results of which revealed that the genome of the studied varieties contains: Chernozemnouralskaya 2 (5 biotypes), Voronezh 18 (5 biotypes), Voronezh 20 (4 biotypes) and a solid variety Voronezhskaya 13 (1 biotype). The selected biotypes were propagated for 3 years, analyzed and evaluated according to the indicators of the structural analysis of the elements of productivity and quality. Based on this, their economic and biological characteristics were given. It was found that biotypes 3 and 4 of the Chernozemnouralskaya variety 2, biotypes 1 and 2 of the Voronezhskaya 18 variety, biotypes 1 and 2 of the Voronezhskaya 20 variety proved to be the most productive relative to the standard during the study period. As for the quality indicators, as a result of the research the difference in quality of gliadin biotypes was revealed, which is important to take into account in breeding work to increase genetic diversity when creating high-quality varieties. The ones with the best quality were: biotype 1 of the Chernozemnouralskaya variety 2, biotypes 2 and 3 of the Voronezhskaya 18 variety. The best biotypes, distinguished by a complex of economically valuable traits, which differ from the initial variety, can be used in further breeding work for the accelerated creation of highly productive and high-quality spring wheat varieties.","PeriodicalId":14627,"journal":{"name":"Izvestiya of Saratov University. New Series. Series: Chemistry. Biology. Ecology","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74125697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and study of some properties of colloidal quantum dots of indium antimonide 锑化铟胶体量子点的合成及一些性能研究

Izvestiya of Saratov University. New Series. Series: Chemistry. Biology. Ecology Pub Date : 2021-12-16 DOI: 10.18500/1816-9775-2021-21-4-378-381

O. Y. Tsvetkova, S. N. Shtykov, N. D. Zhukov, T. D. Smirnova

{"title":"Synthesis and study of some properties of colloidal quantum dots of indium antimonide","authors":"O. Y. Tsvetkova, S. N. Shtykov, N. D. Zhukov, T. D. Smirnova","doi":"10.18500/1816-9775-2021-21-4-378-381","DOIUrl":"https://doi.org/10.18500/1816-9775-2021-21-4-378-381","url":null,"abstract":"Colloidal quantum dots of indium antimonide have been synthesized by a known technique. The shape and average diameters of quantum dots have been investigated by transmission electron microscopy using a transmission microscope. Controlling the size and shape of colloidal QDs provides information on the formation of the crystal structure of nanoparticles and their possible physical and optical properties. It has been found that InSb quantum dots are characterized by a polygonal shape. The results obtained for QDs correspond to the crystal lattice system of a semiconductor with a cubic crystal lattice structure. Elemental analysis of nanoparticles has been monitored by X-ray microanalysis. The experimental determination error was no more than one percent. The percentages of indium and antimony in QDs according to X-ray microanalysis data corresponded to the theoretical stoichiometry In: Sb = 1:1. Impurities of other elements constituted the level of trace amounts, which confirmed the chemical purity of the synthesized InSb QDs. The fluorescent properties of indium antimonide nanoparticles have been studied. It has been found that the luminescence intensity of InSb nanoparticles at room temperature is insignificant, which is in agreement with the literature data. The quantum yield does not exceed 1%, and the luminescence maximum lies in the range of 1040 nm.","PeriodicalId":14627,"journal":{"name":"Izvestiya of Saratov University. New Series. Series: Chemistry. Biology. Ecology","volume":"35 5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78026362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of Amanita muscaria (class Agaricomycetes, fam. Amanitaceae) and Flammulina velutipes (class Agaricomycetes, fam. Physalacriaceae) on the growth and development of seedlings of Picea abies (class Pinophyta, fam. Pinaceae) and Abies sibirica (class Pinophyta, fam. Pinaceae) 毒伞菌(真菌纲)的影响。锦葵科)和金针菇(金针菇纲，fam)。对云杉(Pinophyta纲，fam)幼苗生长发育的影响。松科)和西伯利亚冷杉(松植物纲，科)。松科)

Izvestiya of Saratov University. New Series. Series: Chemistry. Biology. Ecology Pub Date : 2021-12-16 DOI: 10.18500/1816-9775-2021-21-4-415-420

Railia G. Kalyakina, G. T. Bastaeva, E. M. Anhalt, V. A. Simonenkova, O. Lyavdanskaya

{"title":"Influence of Amanita muscaria (class Agaricomycetes, fam. Amanitaceae) and Flammulina velutipes (class Agaricomycetes, fam. Physalacriaceae) on the growth and development of seedlings of Picea abies (class Pinophyta, fam. Pinaceae) and Abies sibirica (class Pinophyta, fam. Pinaceae)","authors":"Railia G. Kalyakina, G. T. Bastaeva, E. M. Anhalt, V. A. Simonenkova, O. Lyavdanskaya","doi":"10.18500/1816-9775-2021-21-4-415-420","DOIUrl":"https://doi.org/10.18500/1816-9775-2021-21-4-415-420","url":null,"abstract":"The article presents studies of the influence of Amanita muscaria and Flammulina velutipes on the growth and development of seedlings of species of the Pinaceae family. The positive effect of mycorrhization by these fungi species on the growth and development of Picea abies and Abies sibirica was established. Thus, the presence of Flammulina velutipes and Amanita muscaria in the substrate accelerated the appearance of the first shoots by 4–8 days. Mycorrhization of Amanita muscaria influenced the morphometry of the seedlings of Picea abies and Abies sibirica. The main root length changed: in Picea abies it increased by 17.2%, in Abies sibirica it decreased by 12.9%, compared with the control group. In the presence of Amanita muscaria, the length of lateral roots increased by 51.0% in Picea abies seedlings, and by 32.4% in Abies sibirica seedlings, compared with the control group. The height of the aerial part in the presence of Flammulina velutipes increased in comparison with the control group in Picea abies seedlings by 52.2% and in Abies sibirica seedlings by 18.3%. Mycorrhization of Amanita muscaria seedlings caused an increase in the stem diameter at the root collar of Picea abies seedlings by 13.6%, and Abies sibirica seedlings by 12.1%.","PeriodicalId":14627,"journal":{"name":"Izvestiya of Saratov University. New Series. Series: Chemistry. Biology. Ecology","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81753954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Accumulation of heavy metals and arsenic with medicinal herbal raw material of common shovel harvested in Voronezh region 沃罗涅日地区普通铲采药材中重金属和砷的积累

Izvestiya of Saratov University. New Series. Series: Chemistry. Biology. Ecology Pub Date : 2021-12-16 DOI: 10.18500/1816-9775-2021-21-4-478-487

N. Dyakova

{"title":"Accumulation of heavy metals and arsenic with medicinal herbal raw material of common shovel harvested in Voronezh region","authors":"N. Dyakova","doi":"10.18500/1816-9775-2021-21-4-478-487","DOIUrl":"https://doi.org/10.18500/1816-9775-2021-21-4-478-487","url":null,"abstract":"The Voronezh region is traditionally the most important area of crop production and agriculture. The purpose of the research was to study the contamination with heavy metals of medicinal plant raw materials of the Voronezh region using the example of the roots of ordinary burdock, prepared in urbo- and agro-ecosystems, which have various anthropogenic effects on themselves. The accumulation of heavy metals (lead, mercury, cadmium, nickel, copper, zinc, cobalt, chromium) and arsenic in 51 samples of raw materials was studied. By comparing the heavy metal content in the upper soil layers of the region and the content of these elements in the roots of the bladder, it can be assumed that there are significant physiological barriers to the accumulation of ecotoxicants in the roots of the bladder, which is especially noticeable for elements such as lead, mercury, arsenic, cadmium, cobalt and chromium. At the same time, this type of medicinal vegetal raw material is able to selectively concentrate some heavy metals included in the active centers of enzyme systems (copper and zinc). Thus, for an ordinary bladder under conditions of anthropogenic load, an edaphotype is formed, which is as a result of selection in conditions of anthropogenic pollution of the external environment and the manifestation of adaptation to these conditions.","PeriodicalId":14627,"journal":{"name":"Izvestiya of Saratov University. New Series. Series: Chemistry. Biology. Ecology","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75088836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1