Pub Date : 2022-01-01DOI: 10.26907/2542-064x.2022.3.438-456
K. Giniyatullin, I. Sahabiev, E. V. Smirnova, A. Valeeva, S. S. Ryazanov, L. I. Latypova
{"title":"Using the Reflectance Parameters as Covariates of the Organic Matter Content in Fallow Soils","authors":"K. Giniyatullin, I. Sahabiev, E. V. Smirnova, A. Valeeva, S. S. Ryazanov, L. I. Latypova","doi":"10.26907/2542-064x.2022.3.438-456","DOIUrl":"https://doi.org/10.26907/2542-064x.2022.3.438-456","url":null,"abstract":"","PeriodicalId":23418,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta. Seriya Estestvennye Nauki","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79390646","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}
Pub Date : 2022-01-01DOI: 10.26907/2542-064x.2022.3.392-407
I. Fitsev, E. Nikitin, A. Rakhmaeva, D. Terenzhev, T. M. Sakhno, Z. Nasybullina
This article presents the results of a gas chromatography-mass spectrometry (GC-MS) study of the chemical composition of Cupressus sempervirens L. (Mediterranean cypress) and Thuja occidentalis L. (northern white-cedar) essential oils, as well as their activity against four strains of pathogenic fungi infecting crops. Our observations revealed high concentrations of monoterpenes, sesquiterpenes, mono-teppernic and sesquitepernic alcohols, ethers and esters, and flavonoids in the essential oil samples of both plants. Notably, the growth of pathogens was significantly inhibited by α-pinene (44.73% for C. sempervirens and 27.74% for T. occidentalis ) and α-terpineol (4.04% and 5.14%, respectively) found at high levels. The selective effect exerted by all the compounds on the strains of the phytopathogenic fungi tested was established. C. sempervirens L. essential oil displayed the highest antifungal activity against fusarial wilt ( Fusarium graminearum FG-30) and snow mold ( Microdochium nivale ) pathogens.
本文采用气相色谱-质谱联用技术研究了地中海柏树(Cupressus sempervirens L.)和北方白柏树(Thuja occidentalis L.)精油的化学成分及其对4种作物病原菌的活性。我们的观察发现，两种植物的精油样品中都含有高浓度的单萜、倍半萜、单萜和倍半萜醇、醚和酯以及类黄酮。α-蒎烯和α-松油醇对病原菌的生长有显著抑制作用，α-蒎烯的抑制率分别为44.73%和27.74%，α-松油醇的抑制率分别为4.04%和5.14%。所有化合物对所测植物病原真菌菌株均有选择性作用。对枯萎病(Fusarium graminearum FG-30)和雪霉菌(Microdochium nivale)的抑菌活性最高。
{"title":"Chemical Composition of Cupressus sempervirens L. and Thuja occidentalis L. Essential Oils and Their Activity against Phytopathogenic Fungi","authors":"I. Fitsev, E. Nikitin, A. Rakhmaeva, D. Terenzhev, T. M. Sakhno, Z. Nasybullina","doi":"10.26907/2542-064x.2022.3.392-407","DOIUrl":"https://doi.org/10.26907/2542-064x.2022.3.392-407","url":null,"abstract":"This article presents the results of a gas chromatography-mass spectrometry (GC-MS) study of the chemical composition of Cupressus sempervirens L. (Mediterranean cypress) and Thuja occidentalis L. (northern white-cedar) essential oils, as well as their activity against four strains of pathogenic fungi infecting crops. Our observations revealed high concentrations of monoterpenes, sesquiterpenes, mono-teppernic and sesquitepernic alcohols, ethers and esters, and flavonoids in the essential oil samples of both plants. Notably, the growth of pathogens was significantly inhibited by α-pinene (44.73% for C. sempervirens and 27.74% for T. occidentalis ) and α-terpineol (4.04% and 5.14%, respectively) found at high levels. The selective effect exerted by all the compounds on the strains of the phytopathogenic fungi tested was established. C. sempervirens L. essential oil displayed the highest antifungal activity against fusarial wilt ( Fusarium graminearum FG-30) and snow mold ( Microdochium nivale ) pathogens.","PeriodicalId":23418,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta. Seriya Estestvennye Nauki","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74664600","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}
Pub Date : 2022-01-01DOI: 10.26907/2542-064x.2022.1.135-165
K. Arslanov, V. Dergachev, F. Maksimov, J. V. Kudryavtsev
{"title":"Chronology of the Short-Term Climate Change during the Holocene in Northwestern Russia and Its Correlation with the Solar Activity Variations","authors":"K. Arslanov, V. Dergachev, F. Maksimov, J. V. Kudryavtsev","doi":"10.26907/2542-064x.2022.1.135-165","DOIUrl":"https://doi.org/10.26907/2542-064x.2022.1.135-165","url":null,"abstract":"","PeriodicalId":23418,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta. Seriya Estestvennye Nauki","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88103327","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}
Pub Date : 2022-01-01DOI: 10.26907/2542-064x.2022.3.378-391
A. R. Kuluev, B. Kuluev, A. Chemeris
{"title":"Chemical Mutagenesis of Triticum sinskajae A. Filat. et Kurk. Using Sodium Azide","authors":"A. R. Kuluev, B. Kuluev, A. Chemeris","doi":"10.26907/2542-064x.2022.3.378-391","DOIUrl":"https://doi.org/10.26907/2542-064x.2022.3.378-391","url":null,"abstract":"","PeriodicalId":23418,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta. Seriya Estestvennye Nauki","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74983156","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}
Pub Date : 2022-01-01DOI: 10.26907/2542-064x.2022.2.185-195
A. O. Nikitina, A. Yulmetov, A. Kusova, V. Klochkov, D. S. Blokhin
Amyloid fibrils are ordered aggregates that from a wide variety of soluble proteins and peptides. Amyloid fibrils take part into more than 20 human diseases, including Alzheimer’s, Parkinson, Huntington and HIV infection. The association of certain proteins with the fibril structure formation characterizes the pathological manifestation of amyloid diseases. Clarification of the physicochemical parameters of the amyloid fibril formation is critical to our understanding and subsequent treatment of amyloid diseases. There are several comprehensive studies of self-assembly mechanisms of functional and pathogenic polypeptides. peptide
{"title":"Atomistic Simulations of PAP248-286 Peptide Oligomerization","authors":"A. O. Nikitina, A. Yulmetov, A. Kusova, V. Klochkov, D. S. Blokhin","doi":"10.26907/2542-064x.2022.2.185-195","DOIUrl":"https://doi.org/10.26907/2542-064x.2022.2.185-195","url":null,"abstract":"Amyloid fibrils are ordered aggregates that from a wide variety of soluble proteins and peptides. Amyloid fibrils take part into more than 20 human diseases, including Alzheimer’s, Parkinson, Huntington and HIV infection. The association of certain proteins with the fibril structure formation characterizes the pathological manifestation of amyloid diseases. Clarification of the physicochemical parameters of the amyloid fibril formation is critical to our understanding and subsequent treatment of amyloid diseases. There are several comprehensive studies of self-assembly mechanisms of functional and pathogenic polypeptides. peptide","PeriodicalId":23418,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta. Seriya Estestvennye Nauki","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80999916","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}
Pub Date : 2022-01-01DOI: 10.26907/2542-064x.2022.4.567-576
A. Ivanov
{"title":"Fish Assemblages from the Middle–Upper Devonian of the Middle Urals, Russia","authors":"A. Ivanov","doi":"10.26907/2542-064x.2022.4.567-576","DOIUrl":"https://doi.org/10.26907/2542-064x.2022.4.567-576","url":null,"abstract":"","PeriodicalId":23418,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta. Seriya Estestvennye Nauki","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73140420","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}
Pub Date : 2022-01-01DOI: 10.26907/2542-064x.2022.4.519-534
N. Lipachev, A.S. Dvoeglazova, A. A. Sadreeva, A. Aganov, M. Paveliev
{"title":"Comparative Analysis of the Methods for Quantitative Study of the Perineuronal Net Microstructure","authors":"N. Lipachev, A.S. Dvoeglazova, A. A. Sadreeva, A. Aganov, M. Paveliev","doi":"10.26907/2542-064x.2022.4.519-534","DOIUrl":"https://doi.org/10.26907/2542-064x.2022.4.519-534","url":null,"abstract":"","PeriodicalId":23418,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta. Seriya Estestvennye Nauki","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83710179","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}
Pub Date : 2022-01-01DOI: 10.26907/2542-064x.2022.2.279-296
G. Zhdanova, D. Stom, N. Yudina, S. Alferov, Z. U. Dzhangidze, A. D. Stom, M. Tolstoy, I. A. Bogdanova, A. Chesnokova
{"title":"Generation of Electricity in BFC by the Biological Product “Doctor Robik” during the Purification of Nitrogen-Containing Wastewater","authors":"G. Zhdanova, D. Stom, N. Yudina, S. Alferov, Z. U. Dzhangidze, A. D. Stom, M. Tolstoy, I. A. Bogdanova, A. Chesnokova","doi":"10.26907/2542-064x.2022.2.279-296","DOIUrl":"https://doi.org/10.26907/2542-064x.2022.2.279-296","url":null,"abstract":"","PeriodicalId":23418,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta. Seriya Estestvennye Nauki","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87999800","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}
Pub Date : 2021-01-01DOI: 10.26907/2542-064x.2021.3.527-537
N. Nigmatullin, G. Nigamatzyanova, E. A. Valieva, L. Frolova
This paper presents the results of the hydrochemical, hydrobiological, and paleolimnological studies of 17 Arctic lakes in the Pechora River delta. Water samples and surface sediments were collected during the 2020 summer expedition to the Nenets State Nature Reserve. Based on the chemical composition of their waters, the studied lakes belong to the chloride class, sodium group II. Overall, they are characterized by shallow depths typical of this region, low mineralization (below 200 mg/L) and water hardness, as well as high dissolved oxygen levels. To assess the ecological status of the lakes, cladocerans and their subfossil remains, which have been widely recognized as reliable indicators for tracking long‐term changes in the development of freshwater ecosystems, were analyzed. A total of 23 cladoceran taxa were identified. The dominant species were Bosmina longispina (Leydig, 1860) and Chydorus cf. sphaericus (Müller, 1776) – either of these species, often displacing each other, prevailed in the lakes. Other cladoceran species were low-abundant and found sporadically: Sida crystallina (Müller, 1776), Pleuroxus uncinatus (Baird, 1850), Coronatella rectangula (Sars, 1862), and Bythotrephes longimanus (Leydig, 1860). The study also reports the first finding of Rhynchotalona latens (Sarmaja-Korjonen, Hakojarvi and Korhola, 2000), a rare glacial relict species with a narrow distribution range, in this region of Russia. The zoogeographical analysis of the data obtained on the identified taxa showed that species typical of the Palearctic and Holarctic zones prevail in the cladoceran communities under study.
{"title":"Recent Сladocera (Branchiopoda, Crustacea) in the Taphocenoses of Lakes in the Pechora River Delta (Russia)","authors":"N. Nigmatullin, G. Nigamatzyanova, E. A. Valieva, L. Frolova","doi":"10.26907/2542-064x.2021.3.527-537","DOIUrl":"https://doi.org/10.26907/2542-064x.2021.3.527-537","url":null,"abstract":"This paper presents the results of the hydrochemical, hydrobiological, and paleolimnological studies of 17 Arctic lakes in the Pechora River delta. Water samples and surface sediments were collected during the 2020 summer expedition to the Nenets State Nature Reserve. Based on the chemical composition of their waters, the studied lakes belong to the chloride class, sodium group II. Overall, they are characterized by shallow depths typical of this region, low mineralization (below 200 mg/L) and water hardness, as well as high dissolved oxygen levels. To assess the ecological status of the lakes, cladocerans and their subfossil remains, which have been widely recognized as reliable indicators for tracking long‐term changes in the development of freshwater ecosystems, were analyzed. A total of 23 cladoceran taxa were identified. The dominant species were Bosmina longispina (Leydig, 1860) and Chydorus cf. sphaericus (Müller, 1776) – either of these species, often displacing each other, prevailed in the lakes. Other cladoceran species were low-abundant and found sporadically: Sida crystallina (Müller, 1776), Pleuroxus uncinatus (Baird, 1850), Coronatella rectangula (Sars, 1862), and Bythotrephes longimanus (Leydig, 1860). The study also reports the first finding of Rhynchotalona latens (Sarmaja-Korjonen, Hakojarvi and Korhola, 2000), a rare glacial relict species with a narrow distribution range, in this region of Russia. The zoogeographical analysis of the data obtained on the identified taxa showed that species typical of the Palearctic and Holarctic zones prevail in the cladoceran communities under study.","PeriodicalId":23418,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta. Seriya Estestvennye Nauki","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74100808","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}
Pub Date : 2021-01-01DOI: 10.26907/2542-064x.2021.2.209-220
V. K. Shormanov, D. P. Shcherbakov, S. Garmonov
Albendazole ([5-(propylthio)-1H-benzimidazol-2-yl]carbamic acid methyl ester) is a benzimidazole derivative drug that has anthelmintic activity and is especially effective against various nematodes. Along with pronounced pharmacological action, this compound is toxic to humans. Cases of poisoning with this substance and other benzimidazole derivatives are not uncommon. Despite the active use of albendazole in medical practice and its toxicity, many questions of the chemical and toxicological analysis of albendazole remain practically unexplored. In this regard, it is advisable to study albendazole in chemical and toxicological terms. This paper aims to analyze the determination and dynamics of albendazole decomposition in biological material. Acetone was used as a chemical agent for albendazole isolation from the liver as a biomaterial. Purification of the obtained extracts was carried out sequentially in a column (190 × 11 mm) of silica gel L 40/100 μm (eluent – acetone-methylene chloride (9:1)) and by liquid-liquid extraction. The methods of thin-layer chromatography (TLC), high-performance liquid chromatography combined with tandem mass spectrometry (HPLC-MS/MS), UV spectrophotometry were used for identification. The quantitative content of the analyte was determined using UV spectrophotometry by the absorption of the dimethylformamide (DMF) medium at 301 nm. The level of albendazole extraction from the biomaterial was 85–88%.
{"title":"Features of Albendazole Determination and Dynamics of Its Decomposition in Biological Material","authors":"V. K. Shormanov, D. P. Shcherbakov, S. Garmonov","doi":"10.26907/2542-064x.2021.2.209-220","DOIUrl":"https://doi.org/10.26907/2542-064x.2021.2.209-220","url":null,"abstract":"Albendazole ([5-(propylthio)-1H-benzimidazol-2-yl]carbamic acid methyl ester) is a benzimidazole derivative drug that has anthelmintic activity and is especially effective against various nematodes. Along with pronounced pharmacological action, this compound is toxic to humans. Cases of poisoning with this substance and other benzimidazole derivatives are not uncommon. Despite the active use of albendazole in medical practice and its toxicity, many questions of the chemical and toxicological analysis of albendazole remain practically unexplored. In this regard, it is advisable to study albendazole in chemical and toxicological terms. This paper aims to analyze the determination and dynamics of albendazole decomposition in biological material. Acetone was used as a chemical agent for albendazole isolation from the liver as a biomaterial. Purification of the obtained extracts was carried out sequentially in a column (190 × 11 mm) of silica gel L 40/100 μm (eluent – acetone-methylene chloride (9:1)) and by liquid-liquid extraction. The methods of thin-layer chromatography (TLC), high-performance liquid chromatography combined with tandem mass spectrometry (HPLC-MS/MS), UV spectrophotometry were used for identification. The quantitative content of the analyte was determined using UV spectrophotometry by the absorption of the dimethylformamide (DMF) medium at 301 nm. The level of albendazole extraction from the biomaterial was 85–88%.","PeriodicalId":23418,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta. Seriya Estestvennye Nauki","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74857441","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}
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