Doklady Biological Sciences最新文献_第3页

Age Specifics of Homeostasis Response to Cold Stress in Wistar Rats: Endurance Improvement or Disorganization? Wistar 大鼠对冷应激的稳态反应的年龄特征：耐力提高还是紊乱？

Doklady Biological Sciences Pub Date : 2024-10-01 Epub Date: 2024-08-28 DOI: 10.1134/S0012496624701187

M V Kondashevskaya, K A Artemyeva, V V Aleksankina, E B Manukhina, L M Mikhaleva

引用次数: 0

Phytochemical Characteristics and Antimicrobial Effects of Nonea rossica (Boraginaceae) Extracts. Nonea rossica（婆婆纳科）提取物的植物化学特征和抗菌作用。

Doklady Biological Sciences Pub Date : 2024-10-01 Epub Date: 2024-08-11 DOI: 10.1134/S0012496624701163

V V Velichko, M E Kartashova, S D Kucherova, D S Kruglov, L G Burova, A N Evstropov

{"title":"Phytochemical Characteristics and Antimicrobial Effects of Nonea rossica (Boraginaceae) Extracts.","authors":"V V Velichko, M E Kartashova, S D Kucherova, D S Kruglov, L G Burova, A N Evstropov","doi":"10.1134/S0012496624701163","DOIUrl":"10.1134/S0012496624701163","url":null,"abstract":"Phytochemical characteristics and antimicrobial properties of extracts were studied in Nonea rossica Steven (Boraginaceae), which is widespread in Russia. The aerial part (herb) of N. rossica was harvested from a steppe meadow in the Novosibirsk region during flowering. The qualitative composition of biologically active compounds (BACs) was determined by thin-layer chromatography. Quantitative assays were carried out by spectrophotometry; flavonoids, hydroxycinnamic acids, and coumarin-like compounds were measured with reference to rutin, caffeic acid, and coumarin, respectively. Antimicrobial activity was determined by the serial dilution method. Gram-positive bacterial (Staphylococcus aureus ATCC 6538 FDA 209P and Bacillus cereus ATCC 10702) and fungal (Candida albicans NCTC 885-653) strains were used as test cultures. Phenolic BACs (hydroxycinnamic acids, flavonoids, and coumarins) were detected, and their quantitative contents determined. The highest yield of phenolic BACs was achieved using 40-70% ethanol as an extractant. Antimicrobial activity against S. aureus and B. cereus and antifungal activity against C. albicans were detected in N. rossica herb extracts prepared using 40-70% ethanol. The extracts were tested for the contents of caffeic acid and coumarin. Synergistic interactions of these compounds determined the bactericidal and fungistatic properties of the extracts.","PeriodicalId":11351,"journal":{"name":"Doklady Biological Sciences","volume":" ","pages":"218-224"},"PeriodicalIF":0.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141916311","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

Interpopulation Variation of Leaf Polyphenol Content in Spiraea aquilegifolia (Rosaceae) from the Republic of Buryatia. 布里亚特共和国 Spiraea aquilegifolia（蔷薇科）叶片多酚含量的种群间差异。

Doklady Biological Sciences Pub Date : 2024-10-01 Epub Date: 2024-08-11 DOI: 10.1134/S0012496624701138

V A Kostikova, O V Imetkhenova, N V Petrova

{"title":"Interpopulation Variation of Leaf Polyphenol Content in Spiraea aquilegifolia (Rosaceae) from the Republic of Buryatia.","authors":"V A Kostikova, O V Imetkhenova, N V Petrova","doi":"10.1134/S0012496624701138","DOIUrl":"10.1134/S0012496624701138","url":null,"abstract":"The composition and content of polyphenols in leaves was studied in Spiraea aquilegifolia Pall. plants from nine natural populations of the Republic of Buryatia (Western Transbaikalia) by high-performance liquid chromatography (HPLC). At least 24 compounds were detected in hydroethanolic extracts of S. aquilegifolia leaves by HPLC. Of these, three phenol carboxylic acids (chlorogenic, p-hydroxybenzoic, and p-coumaric acids) and six flavonols (hyperoside, isoquercitrin, avicularin, astragalin, quercetin, and kaempferol) were identified. Hyperoside (2.9-8.2 mg/g), avicularin (3.0-5.8 mg/g), and isoquercitrin (0.8-2.5 mg/g) were the main flavonols found in leaf hydroethanolic extracts. Plants from populations located at the northern distribution limit in Western Transbaikalia were found to have higher contents of phenol carboxylic acids (near the village Koma) and flavonols (near the village Klyuchi). Plants from populations located at the eastern limit (near the villages Kusoty and Zagan) showed the lowest concentration of the identified phenolic compounds. The contents of the identified free phenolic acids and flavonols were moderate or high in S. aquilegifolia leaves as compared to other Spiraea species examined, rendering it important to further study the composition of phenolic compounds in S. aquilegifolia.","PeriodicalId":11351,"journal":{"name":"Doklady Biological Sciences","volume":" ","pages":"187-193"},"PeriodicalIF":0.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141916386","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

Conformational Changes in DNA and Protein Biomolecules in Pathogenesis of Ischemic Stroke. 缺血性中风发病机制中 DNA 和蛋白质生物大分子的构象变化

Doklady Biological Sciences Pub Date : 2024-10-01 Epub Date: 2024-08-28 DOI: 10.1134/S0012496624600222

A V Trofimov, T I Vlasova, V A Trofimov, D I Sidorov, M A Spirina

引用次数: 0

Changes in Individual and Group Compositions of Polyphenols in Leaves of Lonicera caerulea subsp. altaica and Spiraea chamaedryfolia as Related to Chemical Element Contents in Soil and Plants on Ultra-alkaline Parent Rock Material. 超碱性母岩材料上的忍冬亚种（Lonicera caerulea subsp.altaica）和刺五加（Spiraea chamaedryfolia）叶中多酚的个体和群体成分变化与土壤和植物中化学元素含量的关系。

Doklady Biological Sciences Pub Date : 2024-10-01 Epub Date: 2024-08-11 DOI: 10.1134/S0012496624701084

I G Boyarskikh, V A Kostikova

{"title":"Changes in Individual and Group Compositions of Polyphenols in Leaves of Lonicera caerulea subsp. altaica and Spiraea chamaedryfolia as Related to Chemical Element Contents in Soil and Plants on Ultra-alkaline Parent Rock Material.","authors":"I G Boyarskikh, V A Kostikova","doi":"10.1134/S0012496624701084","DOIUrl":"10.1134/S0012496624701084","url":null,"abstract":"Using high-performance liquid chromatography (HPLC), the contents of main classes of biologically active polyphenols in leaf extracts were analyzed in the medicinal species Spiraea chamaedryfolia L. (Rosaceae) and Lonicera caerulea subsp. altaica L. (Caprifoliaceae). Their features were studied in relation to the macroelement and trace element contents in soil and phytomass in sites with sporadic occurrence of serpentinites in the Altai Mountains. A total of 16 polyphenolic compounds were identified for the first time in S. chamaedryfolia leaf extracts. Of these, three compounds were attributed to phenol carboxylic acids; ten, to flavonols; two, to flavones; and one was identified as a flavanone. In L. caerulea subsp. altaica, the analysis confirmed the polyphenolic composition measured earlier, including hydroxycinnamic acids, flavonols, and flavones, and identified an additional compound as a flavanone. Species-specific shifts in plant secondary metabolism were found to occur in response to specific edaphic properties and the accumulation of macroelements and trace elements in leaves of plants growing in an area with a natural geochemical anomaly.","PeriodicalId":11351,"journal":{"name":"Doklady Biological Sciences","volume":" ","pages":"137-148"},"PeriodicalIF":0.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141916379","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

A Large Marine Bird (Aves: Procellariiformes) from the Eocene of Western Siberia. 西伯利亚西部始新世的一种大型海鸟（有孔虫类：Procellariiformes）。

Doklady Biological Sciences Pub Date : 2024-10-01 Epub Date: 2024-08-11 DOI: 10.1134/S0012496624600131

N V Zelenkov, M P Maslintsyna, T P Malyshkina, A A Maslennikov, E V Syromyatnikova, D O Gimranov

引用次数: 0

Generation of LEPR Knockout Rabbits with CRISPR/CAS9 System. 利用 CRISPR/CAS9 系统生成 LEPR 基因剔除兔。

Doklady Biological Sciences Pub Date : 2024-10-01 Epub Date: 2024-08-28 DOI: 10.1134/S0012496624600234

Yu Yu Silaeva, P D Safonova, D V Popov, M A Filatov, Yu D Okulova, R A Shafei, O I Skobel, D E Vysotskii, Yu D Gubarev, V I Glazko, T T Glazko, P G Georgiev, G Yu Kosovsky, M V Shepelev

引用次数: 0

Intraspecific Variation of Brown Rat Rattus norvegicus in Russia by D-Loop mtDNA Data. 通过 D 环 mtDNA 数据分析俄罗斯褐鼠的种内变异。

Doklady Biological Sciences Pub Date : 2024-10-01 Epub Date: 2024-08-28 DOI: 10.1134/S0012496624701199

A N Maltsev, I V Kartavtseva, V V Stakheev, V Yu Komarov, Yu A Bazhenov, L A Khlyap, E V Kotenkova

引用次数: 0

Drosophila Protein Z4 Possesses ZAD Dimerization Domain. 果蝇蛋白 Z4 具有 ZAD 二聚化结构域

Doklady Biological Sciences Pub Date : 2024-10-01 Epub Date: 2024-08-11 DOI: 10.1134/S0012496624600179

A N Bonchuk, P G Georgiev

引用次数: 0

Structure of Ground Vegetation and Natural Regeneration of Tree Species in 12- to 15-Year-Old Bilberry Pine Forest-Clear-cut Complex of Middle Taiga Subzone. 中泰加亚区 12 至 15 年树龄的山桑子松林-清林复合体的地面植被结构和树种的自然再生。

Doklady Biological Sciences Pub Date : 2024-10-01 Epub Date: 2024-08-11 DOI: 10.1134/S0012496624701102

N V Genikova, S A Moshnikov, D V Teslya

{"title":"Structure of Ground Vegetation and Natural Regeneration of Tree Species in 12- to 15-Year-Old Bilberry Pine Forest-Clear-cut Complex of Middle Taiga Subzone.","authors":"N V Genikova, S A Moshnikov, D V Teslya","doi":"10.1134/S0012496624701102","DOIUrl":"10.1134/S0012496624701102","url":null,"abstract":"Logging in mature stands where part of the forest is harvested in one or several cuts and part is retained (clearcutting and alternate strip cutting) results in the formation of an ecotone complex (EC), which includes a forest (F) zone, a forest edge (FE) as a transition from the forest to the clear-cut under the canopy, a clear-cut edge (CE) as a transition from the forest to the clear-cut outside of the canopy, and the clear-cut proper (C). The composition and structure of ground vegetation and natural regeneration of woody species (Pinus sylvestris L., Picea abies (L.) H. Karst., Betula sp., Populus tremula L., Sorbus aucuparia L., and Juniperus communis L.) were studied in a bilberry pine forest-clear-cut ecotone complex 12-15 years after stand removal. Specific structural features of ground vegetation and undergrowth (including tree regeneration) were observed in each of the four zones of the ecotone complex formed after logging of the mature forest. A typical forest habitat (zone F) showed a minimum number of young regeneration of Pinus sylvestris, Picea abies, Betula sp., Populus tremula, and Sorbus aucuparia and the highest abundance of the lingonberry V. vitis-idaea L. and bilberry Vaccinium myrtillus L. with a maximum height and a maximum yield of bilberry plants. The amount of tree regeneration in the FE zone was much the same as in the F zone. The projective cover, maximum shoot height, and yield of bilberry and the maximum shoot height of lingonberry in the FE zone were significantly lower than in the F zone. The transitional zone on the clear-cut side (CE) and the clear-cut proper (C) strikingly differed from the forest (F and FE) zones of the ecotone complex by a greater number of deciduous and pine regeneration and a low abundance of dwarf shrubs. The clear-cut proper (C) differed from the CE zone by a higher abundance of grasses and forbs and an established tree regeneration layer composed of pine, birch, and aspen.","PeriodicalId":11351,"journal":{"name":"Doklady Biological Sciences","volume":" ","pages":"156-167"},"PeriodicalIF":0.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141916313","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