Biologichni studiyi最新文献

{"title":"Phytohormones in the regulation on growth and development of water ferns of Salviniaceae family: a review","authors":"Iryna Kosakivska, Nina Vedenicheva, Mykola Shcherbatiuk, Lesya Voytenko, Valentyna Vasyuk","doi":"10.30970/sbi.1703.721","DOIUrl":"https://doi.org/10.30970/sbi.1703.721","url":null,"abstract":"Water ferns of the Salviniaceae family are successfully used for bioremediation and bioindication of contaminated waters. Due to intensive propagation they are able to produce a great volume of biomass enriched with natural plant growth regulators. Simultaneously, water ferns have become an impediment to the use of water resources through the fast spread. Their growth and development is under control of phytohormones, which are main chemical messengers regulating the responses to environmental changes. Today hormonal system of water ferns of the Salviniaceae family remains understudied. In this review, we analyzed and summarized the literature data and the results of our own research about the role of auxins, cytokinins, gibberellic, abscisic, salicylic and jasmonic acids in regulation of growth and development of water ferns from Salvinia and Azolla genera emphasizing the specific hallmarks of these phytohormones in ferns. We have submitted brief information about methodological approaches for endogenous phytohormones determination in water ferns of the Salviniaceae family. The effects of exogenous regulators on growth, development and tolerance of water macrophytes from Salvinia and Azolla genera were discussed, as well as the possibility of using water ferns to create ecological biofertilizers.","PeriodicalId":32510,"journal":{"name":"Biologichni studiyi","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134916967","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}

{"title":"Wasps (Crabronidae, Sphecidae, Scoliidae, and Pompilidae) of Rivne Nature Reserve and their trophic relationships with angiosperms","authors":"Sophia Pytel-Huta","doi":"10.30970/sbi.1703.724","DOIUrl":"https://doi.org/10.30970/sbi.1703.724","url":null,"abstract":"Background. The article presents data obtained as a result of our research on the territory of Rivne Nature Reserve during 2018–2022. We collected 118 individuals belon­ging to 43 species, 19 genera from the Crabronidae, Sphecidae, Scoliidae, and Pompilidae families. The captured insects fed on 12 plant species belonging to eight families. A preliminary list of wasp species of the studied families that occur on the territory of Rivne Nature Reserve is presented. The studied individuals are stored in the entomological collections of the Zoological Museum of Ivan Franko National University of Lviv. The aim of the research was to prepare a preliminary list of wasp species of Rivne Nature Reserve and to identify their trophic relationships with angiosperms. Material and Methods. The object of the research was the wasps of the Crabronidae, Sphecidae, Scoliidae, and Pompilidae families. Insects were caught by an entomological net using the method of selective catching directly on plants to identify their trophic relationships. Konus Crystal 7x-45x binoculars (Konus, Italy) and specialized keys and descriptions were used to identify the insects. Identification of angiosperms was carried out with the help of special keys. Results. We collected 43 species of wasps belonging to 19 genera (Bembix, Cerceris, Crabro, Crossocerus, Ectemnius, Lestica, Nysson, Oxybelus, Gorytes, Pemphredon, Tachysphex, Ammophila, Sceliphron, Scolia, Priocnemis, Anoplius, Arachnospila, Episyron, and Dipogon). Most of the wasps (40 species) were registered on the territory of Rivne Nature Reserve for the first time. We identified trophic relationships between the adults of 27 wasp species and plants belonging to 12 genera. The publication provides a preliminary list of the species from the territory of Rivne Nature Reserve. The individuals are stored in the collections of the Zoological Museum of Lviv University. Conclusions. Out of 43 species (19 genera) of wasps, 40 were recorded for the first time in Rivne Nature Reserve. These include Sceliphron curvatum, which is invasive in Europe.Trophic relationships of 27 adult wasp species with 12 angiosperm species were established. As a result, a preliminary list of wasp species for the territory of Rivne Nature Reserve was prepared and trophic relationships of some representatives of the families Crabronidae, Sphecidae, Scoliidae, and Pompilidae with angiosperms were revealed.","PeriodicalId":32510,"journal":{"name":"Biologichni studiyi","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134915807","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}

{"title":"Thapsigargin-resistant thiacalix[4]arene C-1087-sensitive component of the contractile activity in rat myometrium reflects the functioning of plasma membrane calcium pump","authors":"Olga Tsymbalyuk, Tetyana Veklich, Roman Rodik, Sergiy Karakhim, Sergiy Vyshnevskyi, Vitaly Kalchenko, Sergiy Kosterin","doi":"10.30970/sbi.1703.725","DOIUrl":"https://doi.org/10.30970/sbi.1703.725","url":null,"abstract":"Background. According to existing knowledge, thiacalix[4]arene С-1087 is highly capable of inhibiting Са2+-pump (Са2+, Mg2+-АТРase) of the plasma membrane; at the same time it inhibits the functioning of Са2+-pump of the sarcoplasmic reticulum of uterine smooth muscles to some degree. The aim of this research was to study the effects of С-1087 on the concentration of Ca2+ ions and contractile activity of the rat myometrium cells using an inhibitor of Са2+-pump of the sarcoplasmic reticulum – thapsigargin. Materials and Methods. The experiments were conducted using outbred white non-pregnant rats. The contractile activity in the preparations of longitudinal SM of uterine horns with preserved endothelium was registered in the isometric mode. To determine the changes in [Ca2+]i level, myocytes were treated with probes Hoechst 33342 (to test the nucleus of the cell) and fluo-4 AM (to test the change in Са2+-concentration in the cell). Results. The tenzometric studies with the subsequent mechanokinetic analysis demonstrated that under the action of thapsigargin (0.5 µM), thiacalix[4]arene C-1087 (10 µM) caused considerable changes in the kinetics of the spontaneous contractile activity processes in the myometrium of rats, including the decrease in the maximal contraction velocity and the increase in the maximal relaxation velocity. By means of confocal microscopy with Ca2+-sensitive fluorescent probe fluo-4, it was demonstrated that the application of thiacalix[4]arene С-1087 to immobilized myocytes of the uterus against the background of thapsigargin caused a transient spike of Са2+-signal with the subsequent turn of the intracellular concentration of Ca ions to the stable increased level. The effects of С-1087 under the action of thapsigargin regarding the relaxation phase in the spontaneous myometrium contractions were removed after the preliminary blocking of nitric oxide synthases L-NAME (100 µM). Under the action of L-NAME, thiacalix[4]arene С-1087 (10 µM) caused complete inhibition of the relaxation process in the contraction of myometrium preparations, induced by high-potassium solution (80 mM). Conclusions. The primary reason for changes in the contractile activity and Ca2+-signal in uterine myocytes under the effect of thiacalix[4]arene С-1087 is its ability to inhibit Са2+-pump of the plasma membrane; further С-1087-induced changes in the smooth muscle tissues may be caused by the increased level of Са2+ concentration in myocytes. The obtained results demonstrate thiacalix[4]arene С-1087 is a promising compound for the elaboration of pharmacological preparations for modulating the contractile activity in smooth muscles, including myometrium.","PeriodicalId":32510,"journal":{"name":"Biologichni studiyi","volume":"197 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134915811","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}

{"title":"Inheritance of dwarfism trait by winter wheat mutants induced in the Chornobyl NPP exclusion zone","authors":"Ruslan Yakymchuk","doi":"10.30970/sbi.1703.729","DOIUrl":"https://doi.org/10.30970/sbi.1703.729","url":null,"abstract":"Background. The development of short-stem cultivars is an effective way to increase the productivity of winter wheat grown under the intensive cultivation techno­logy. Dwarf mutants, induced in the exclusion zone of ChNPP, can preserve a productive potential of an initial cultivar and be of a breeding value. The knowledge of the inheri­tance regularities of stem length by dwarf winter wheat mutants makes it possible to choose the pairs for crossing better and predict a final result in hybrid generations earlier. Materials and methods. Hybrids F1 і F2 of Triticum aestivum L. were received by crossing medium-grown cultivar Sonechko with dwarf mutant lines UK 1145/10, UK 1147/10, and UK 1148/10, induced by the effect of the radionuclide contamination of the exclusion zone of ChNNP on the plants of ‘Albatros odeskyi’ cultivar. The nature of the trait inheritance in F1 was determined by the degree of phenotype dominance, the variability of plant height was determined by a variation coefficient. The segregation frequency of dwarf, low-, medium- and high-grown forms was accounted in the population of F2 plants. Results. By stem length, plants F1 exceeded the genotypes involved in hybridization, or were closer to parental forms with a greater manifestation of the trait. The real heterosis in the plant height decrease was shown in the F1 hybrid ‘Sonechko’ × UK 1147/10. The hybrid productivity elements are inherited by the type of a partial positive dominance and over-dominance. From 2.2 % to 3.6 % of high-grown forms, atypical for parents, were recorded in the population of F2. Conclusions. When the crossing combination includes a medium-grown cultivar of winter wheat and dwarf mutants, induced in the exclusion zone of ChNPP, a stem length in F1 is inherited by an intermediate type and partial positive dominance. Dwarf mutant UK 1147/10 can be valuable for breeding short stem winter bread wheat. A significant variation of such indicator as a degree of phenotype dominance by all studied features confirms a complicated nature of genetic determination of a plant height and the productivity elements of winter wheat, in the formation of which various types of gene interaction take part.","PeriodicalId":32510,"journal":{"name":"Biologichni studiyi","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134915622","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}

{"title":"Dispersion analysis of the effect of nettle extract on some biochemical and hematological parameters in stress-induced rats","authors":"Oksana Buchko, Nataliia Harasym, Viktoriia Havryliak, Olena Yaremkevych","doi":"10.30970/sbi.1703.732","DOIUrl":"https://doi.org/10.30970/sbi.1703.732","url":null,"abstract":"Background. The effects of 40% ethanolic nettle extract (the first factor) and adrenaline-induced stress (the second factor) were evaluated, both individually and in combination, on some biochemical and hematological parameters in rats using a two-factor analysis of variance. Materials and Methods. In experiments, we used 4 groups of rats. Animals of groups UD-nettle and UD+A received 40% ethanolic extract of nettle (Urtica dioica L.) in a dose of 5 mL/kg of body weight for 4 weeks. Rats of the groups (C-control) and (A-stress) received an appropriate amount of 40% ethanol. On the 29th day of the experiment, the stress was simulated in the animals of groups A and UD + A by an intramuscular injection of 0.1% adrenaline hydrochloride in the dose of 1 mg/kg of the body weight. The rats of the C and UD-nettle groups were injected with the appropriate amount of physiological solution. The animals were decapitated under anesthesia 24 hours after injections. Some hematological and biochemical parameters of the blood, liver, heart, and kidney of rats were studied. All experimental data were processed by ANOVA analysis. Results. Adrenaline stress has the most intense effect on the elevation of aspartate aminotransferase activity in blood, a decrease of superoxide dismutase activity in erythrocytes and concentration of reduced glutathione in the liver and heart, and increased levels of free radical reaction products in all studied organs of rats. The ANOVA analysis showed that nettle extract in the body of non-stressed animals has the most intense effect on reducing the content of lipid hydroperoxide in the liver and carbonyl groups of protein in the heart, and activates the glutathione chain of the antioxidant system in all organs. Administration of nettle extract to rats before stress induction inhibits lipid peroxidation in the kidneys and heart, decreases the concentration of carbonyl groups of protein in blood and liver, reduced glutathione concentration and the activity of glutathione peroxidase in erythrocytes. Our results indicate that the heart is more resistant to stress in terms of free radical formation, but is sensitive to the effect of nettle extract before stress induction in rats which is manifested by the increase in the activity of the enzymatic and non-enzymatic chain of the antioxidant system. All studied factors significantly affected the TBA-active products in the kidneys accompanied by increasing their concentration. The unaccounted factors affect the accumulation of lipid peroxidation products and catalase activity by more than 50%, while they have the least effect on the content of reduced glutathione in all rat tissues. Conclusion. The dispersion analysis confirmed the tissue specificity of the investigated factors’ individual influence and their combined effect on some biochemical and hematological parameters in the rats, as well as the protective and antioxidant properties of nettle extract.","PeriodicalId":32510,"journal":{"name":"Biologichni studiyi","volume":"198 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134915808","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}

{"title":"Challenges for non-English speakers: inter- and intralingual factors shaping the writing of Ukrainian authors in biologial sciences","authors":"Mariya Kozolup, Olha Patiyevych, Halyna Kryzhanivska, Olesya Antokhiv-Skolozdra","doi":"10.30970/sbi.1703.728","DOIUrl":"https://doi.org/10.30970/sbi.1703.728","url":null,"abstract":"Background. Nowadays, almost all indexed journals expect submissions in English, which is a great challenge for exophonic authors. Code-switching context, where cross-language effects, especially native language interference, are well distinct, is critical for approaching the dilemma. Navigating the complicated issues of language-related challenges will be impossible without referring to three crucial levels of written production: lexical, syntactic, and textual. In our investigation, we address the nature of potential errors and their inter- and intralingual origins. In particular, we identify and interpret the deviations from Standard English in scholarly research writing of Ukrainian authors in the field of life sciences, exemplify and classify errors into categories based on the type of language misuse. Materials and Methods. Language material for the study comprised 50 manuscripts submitted by authors from Ukraine to the journal “Studia Biologica”. This research is a mixed-method study encompassing descriptive qualitative and descriptive quantitative methods. Content analysis was employed as the data gathering technique. The analysis of texts was focused on tracing deviations from consistent principles and rules of Standard English and linguistic features of English research discourse and encompassed such steps as highlighting the error, cross-checking and stating the deviation, listing and classifying the errors, and tracing a possible connection of the error to authors’ first language interference. Results. The study identified language areas where Ukrainian authors fail to effectively communicate their ideas to the global academic community. At the textual level, the problem areas encompass defective paragraph structure and excessive verbosity. At the syntactic level, the most critical deviations from the language and stylistic norm comprised misuses of word order and clauses, wordy and confusing sentences with multiple issues that hinder the readability of text. The most widespread grammatical mistakes include missing predicates, faulty subject-verb agreement, incorrect forms of the verb, and inappropriate use of articles, pronouns, demonstratives and quantifiers. At the lexical level, the prevalent errors relate to various types of loan translation, but also include improper word choices and poor vocabulary. Orthographic mistakes, though in minority, refer to the spelling of toponyms, capitalisation, switching from American to British orthographic standards and other random spelling errors. Conclusions. An insight into the nature of the analysed deviations suggests the presence of both intra- and interlingual factors that cause mistakes in papers submitted for publication in the field of life sciences. The error analysis can be beneficial in the educational process for both educators and practitioners. Proper understanding of the functional mechanism of the mistakes might increase the awareness of the potential pitfalls and consequently","PeriodicalId":32510,"journal":{"name":"Biologichni studiyi","volume":"198 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134916031","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}

{"title":"Species and structural diversity of flora and avifauna on the territory of urban water treatment facilities","authors":"Yulia Mamedova, Ruslana Volkova, Angela Chaplygina","doi":"10.30970/sbi.1703.731","DOIUrl":"https://doi.org/10.30970/sbi.1703.731","url":null,"abstract":"Background. The territories of urban wastewater treatment facilities, where the natural vegetation has been radically changed to synanthropic vegetation, promote the spread of ruderal plant species, including invasive ones, but at the same time create a favourable environment for nesting and staying of many bird species, including rare and those listed in the Red Data Book of Ukraine. The aim of this study is to investigate the species and structural diversity of vegetation on the territory of urban wastewater treatment facilities in order to determine their significance for the conservation of avifauna. Materials and Methods. To analyse the state of biodiversity, an inventory of species of higher plant and avifauna in the technogenic areas of Kharkiv wastewater treatment facilities in the spring and summer of 2020–2021 was carried out using conventional methods. Results. The flora of higher vascular plants includes 90 species belonging to 78 genera, 30 families, and 2 classes of the Magnoliophyta division. The leading families are: Asteraceae (30.0 %; n = 90), Poaceae (12.2 %), Brassicaceae (6.7 %), Fabaceae and Polygonaceae (4.4 % each). Herbaceous plant species (92.0 %; n = 90) dominated according to the С. Raunkiær classification (1934), with a predominance of hemicryptophytes (54.0 %) and terophytes (37.0 %). The increased proportion of the latter, compared to the zonal flora, indicates a significant disturbance of the habitat by anthropogenic factors. This is also evidenced by the predominance of synanthropic plant species (81.1 %; n = 90), including 40 species (54.8 %; n = 73) belonging to the apophyte group, and the remaining 45.2 % are adventitious species. In relation to moisture, most plants are mesophytes (71.0%; n = 90). In terms of geographical structure, the flora has a Holarctic-European-Eurasian character with admixtures of North American, Mediterranean, Nomadic and Mediterranean-Asian geoelements. The avifauna includes 95 species belonging to 13 orders and 29 families. Birds of Passeriformes (32.6 %), Charadriiformes (24.2 %) and Anseriformes (13.7 %) predominate. The treatment facilities are important for nesting of 53 species (55.8 %; n = 95), and are also a trophic base for 23 (24.2 %) of wandering and 19 (20.0 %) of transient bird species. The nine faunal groups were dominated by boreal 26.6 % (n = 95) and tropical 13.8 %, as well as limnophilous (12.8 %) and nemoral (11.7 %) species. The nesting avifauna was formed mainly by nemoral 17.0 % (n = 53) and tropical 15.1 %, as well as alluviophilous and boreal (13.2 % each) species. The greatest bird diversity is found in the overgrown silt areas, where vegetation with a projected cover of 50–70 % is interspersed with shallow water as close as possible to natural areas. Among the identified bird species, the following breeding birds are listed in the Red Data Book of Ukraine: Himantopus himantopus, also transient and wandering species: Milvus migrans, Hieraaetus pennatus, Columb","PeriodicalId":32510,"journal":{"name":"Biologichni studiyi","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134916032","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}

{"title":"Species and hybrid composition and genetic diversity of water frogs (Pelophylax esculentus complex) in western Ukrainian hemiclonal population systems","authors":"Vasylyna Strus, Iurii Strus, Ihor Khamar","doi":"10.30970/sbi.1703.726","DOIUrl":"https://doi.org/10.30970/sbi.1703.726","url":null,"abstract":"Background. Two species of water frogs, Pelophylax ridibundus and Pelophylax lessonae, and their hybrid, Pelophylax kl. esculentus, are widespread in Ukraine. The purpose of this study was to investigate the population structure of various types of hemiclonal population systems (HPS) of water frogs formed due to the coexistence of frogs in the same territory. In Ukraine, a hybridization centre with the spread of triploid individuals of hybrid nature has been identified. Triploid hybrids are an intriguing research subject due to the diverse hypotheses about their origin and role in HPS. Outside the hybridization centre in Kharkiv Region, triploids are not commonly found. In our study, we describe the initial findings of triploid specimens in Lviv Region and analyze the genetic structure of the HPS where such individuals were detected. Methods. In total, 193 specimens of green frogs were collected between 2011 and 2015. Here we present population structure analysis which was conducted using two microsatellite loci, Rrid059A and RlCA1b5. A wide range of software programs were utilized for processing the genetic analysis data, including GenePop 4.7.5, Micro-Checker and NewHybrids 1.1. Results. Three types of hemiclonal population systems were identified: R-E type in Perekalky and Lake Pisochne, L-E type in Lake Luky, and R-E-L type in Nyzhankovychi, Velykyi Lyubin, Zhovtantsi and Cholgyni. Additionally, population systems with hybrids of mixed ploidy (diploids and triploids) were found in Perekalky, Velykyi Lyubin and Zhovtantsi. Conclusions. Genetic diversity analysis revealed variations in the number of alleles per population. P. ridibundus individuals exhibited higher genetic diversity compared to P. lessonae individuals, whereas hybrids showed intermediate genetic diversity. Further investigations of the localities where potential triploids were detected are necessary to assess the survival and reproductive potential of hybrid individuals and determine all types of hybrids and individuals of both marsh and pool frogs.","PeriodicalId":32510,"journal":{"name":"Biologichni studiyi","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134916036","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}

{"title":"Influence of salinity of legume plants and their use for restoration of soil fertility","authors":"Lyudmyla Mykhalkiv, Sergii Kots, Ivan Obeziuk","doi":"10.30970/sbi.1703.733","DOIUrl":"https://doi.org/10.30970/sbi.1703.733","url":null,"abstract":"Salinity is one of the biggest harmful stress factors that limit the stability of plants and their productivity, as well as reduce the fertility of soils. Therefore, the research on plant protection mechanisms against high salt concentration in the environment and the search for ways to increase their resistance to this stress factor are relevant today. The presented literature review describes the peculiarities of legume response to salt stress, in particular during the establishment of relationship with nodule bacteria. High concentrations of salt in soil lead to the interruption of some vital processes in legumes and thus cause a significant decrease in both crop quality and harvest size. So, the results of studies which indicate a negative effect of salt stress on growth and development, hormonal status, photosynthesis and carbon assimilation, osmotic processes, maintaining the ion homeostasis and the formation of reproductive organs are given. Special attention is paid to the question of the influence of salinity on the interaction between plants and rhizobia during nodule formation and their further functioning. It is noteworthy that the presence of certain adaptive mechanisms as well as the peculiarities of growth and development of legumes, in particular their capability to form symbiotic nitrogen fixation systems with nodule bacteria, suggest a possibility of using certain species of this family for the remediation of saline soils. The importance of the selection of salt-resistant rhizobia strains and the effectiveness of rhizobia in combination with other beneficial microorganisms for agriculture are noted.","PeriodicalId":32510,"journal":{"name":"Biologichni studiyi","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134916961","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}

{"title":"Viscum album subsp. austriacum (Santalaceae R. Br.) in Volyn Polissia and Zhytomyr Polissia (Ukraine): current distribution, ecology and prediction of future spread","authors":"Oleksandr Orlov, Іvan Danylyk, Oleh Zhukovskyi, Vasyl Budzhak, Tetiana Fedonyuk, Vasyl Borodavka, Оlena Borodavka","doi":"10.30970/sbi.1703.722","DOIUrl":"https://doi.org/10.30970/sbi.1703.722","url":null,"abstract":"Background. One of the subspecies of the European mistletoe, the so called pine mistletoe (Viscum album subsp. austriacum (Wiesb.) Vollm.) is a hemiparasitic, evergreen, epiphytic phanerophyte that parazitizes predominantely on the Scots pine (Pinus sylvestris L.) in Ukraine. The pine trees infested with V. album subsp. austriacum lack moisture for transpiration and photosynthesis, which reduces their primary productivity, viability and health. The purpose of this study was: 1) to determine the current distribution of V. album subsp. austriacum in Volyn and Zhytomyr Polissia regions using GIS-technology; 2) study the main taxation parameters of pine stands infested with V. album subsp. austriacum; 3) predict the possible further spread of V. album subsp. austriacum in the studied Region. Materials and Methods. The grid mapping method based on GIS technology, with a grid size of 10×10 km and 20×20 km, was used to create the map of the species distribution. The spatial distribution of soil moisture in the forest soils of Drevlyanskyi Nature Reserve was determined using satellite images and data on soil moisture from the Earth Engine Data Catalog. The taxation parameters of the mistletoe-infested pine stand (i.e., participation of the Scots pine in the stand composition, area distribution of pine stands by age, relative completeness, stand quality class, trophotope, and hygrotope) were obtained from standard taxation descriptions. Results and Discussion. The study found that V. album subsp. austriacum is more widespread in Volyn Polissia than in Zhytomyr Polissya – 87 and 20 localities respectively. It was shown that the forest plantations colonized by V. album subsp. austriacum in Drevlyansky Nature Reserve are located in areas with the lowest moisture content, with a moisture reserve of 16–70 mm in the 0–100 cm soil layer, which corresponds to dry and fresh hygrotopes. Conclusions. V. album subsp. austriacum is more widely distributed in such nature reserves of the region as Shatskyi National Nature Park and Drevlianskyi Nature Reserve, and less so in Rivne, Cheremskyi, Polissia Nature Reserves and Pripyat-Stokhid National Nature Park. In the region under study, V. album subsp. austriacum mostly affects pure pine forests aged 80‒140 years, of medium completeness (0.5‒0.7), and relatively high and high stand quality classes – Ic–II, in fresh hygrotopes – 67.3 % of the area and in fairly infertile pine site type (trophotope B) – 51.5 %. Based on the distribution of forest site types in the region and their susceptibility to V. album subsp. austriacum, the possibility of its further intensive spread in the study region can be predicted.","PeriodicalId":32510,"journal":{"name":"Biologichni studiyi","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134916033","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}