Biologia最新文献_第7页

Antimicrobial peptides: a novel and natural approach as antibiofouling mediator 抗菌肽：作为抗生物污损介质的新型天然方法

IF 1.5 4区生物学

Biologia Pub Date : 2024-07-01 DOI: 10.1007/s11756-024-01703-8

Harshita Sharma, Vivek Dave, Ekta Tyagi, Anand Prakash

引用次数: 0

Production of fructo-oligosaccharide syrup through catalysis of Bacillus amyloliquefaciens levanase and immobilized Ba-SacB on cell lysate 通过淀粉样芽孢杆菌莱凡酶和固定化 Ba-SacB 对细胞裂解物的催化作用生产果寡糖糖浆

IF 1.5 4区生物学

Biologia Pub Date : 2024-06-26 DOI: 10.1007/s11756-024-01728-z

Song Gao, Xianghui Qi, Ran Lu, Song Zhu, Guoshi Kan, Tatiana Stanishneva-Konovalova, Yingfeng An, Fuping Lu

{"title":"Production of fructo-oligosaccharide syrup through catalysis of Bacillus amyloliquefaciens levanase and immobilized Ba-SacB on cell lysate","authors":"Song Gao, Xianghui Qi, Ran Lu, Song Zhu, Guoshi Kan, Tatiana Stanishneva-Konovalova, Yingfeng An, Fuping Lu","doi":"10.1007/s11756-024-01728-z","DOIUrl":"https://doi.org/10.1007/s11756-024-01728-z","url":null,"abstract":"Levan is a type of fructan with β-(2, 6) fructosyl linkage. In recent years, levan has been used in the medicinal, food and chemical industries for its excellent physicochemical properties of good thermal stability, low viscosity, pseudoplasticity, and non-swelling in water. The levansucrase is key enzyme responsible for biosynthesis of levan from substrate sucrose. In the present study cell lysate of Escherichia coli was used as support for convenient immobilization of Ba-SacB (i.e., Ba-SacB-Cell-Lysate) under the action of dopamine. Compared with the free Ba-SacB, the Ba-SacB-Cell-Lysate showed surprisingly enhanced pH stability in the pH range 6–9, and improved relative activities in the pH ranges 4–5 and 7–10. With the presence of 10% (v/v) butyl alcohol, 5mmol/L Fe3+, and after vortex for 90 min, the Ba-SacB-Cell-Lysate showed up to 14.32 times, 4.63 times, and 9.2 times higher relative activities than the free Ba-SacB. The Ba-SacB-Cell-Lysate kept nearly 81% of the residual activity after 9 cycles of reuse. The fructo-oligosaccharide syrup (FOS) was efficiently produced through the catalysis of levanase with the substrate of levan produced by Ba-SacB-Cell-Lysate, and the preparation conditions were optimized by Box-Behnken response surface methodology.","PeriodicalId":8978,"journal":{"name":"Biologia","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141496161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Earthworm dynamics in relation to alterations of vegetation: effects of oil palm in comparison to rubber and natural forest in tropical Ultisols 与植被变化有关的蚯蚓动力学：油棕榈与橡胶和热带超土壤天然林的影响比较

IF 1.5 4区生物学

Biologia Pub Date : 2024-06-25 DOI: 10.1007/s11756-024-01726-1

Udaranga Iroshan Samarawickrama, Dewpura A.L. Leelamanie, Wijekoon Mudiyanselage Chamila Janaka Wijekoon, Podduwa Kankanamge Subash Chaminda Jayasinghe

{"title":"Earthworm dynamics in relation to alterations of vegetation: effects of oil palm in comparison to rubber and natural forest in tropical Ultisols","authors":"Udaranga Iroshan Samarawickrama, Dewpura A.L. Leelamanie, Wijekoon Mudiyanselage Chamila Janaka Wijekoon, Podduwa Kankanamge Subash Chaminda Jayasinghe","doi":"10.1007/s11756-024-01726-1","DOIUrl":"https://doi.org/10.1007/s11756-024-01726-1","url":null,"abstract":"Earthworms are natural soil quality indicators that are highly responsive to their living environment. Due to the recent rapid expansion of oil palm in tropical countries, there are raised concerns on possible negative impacts on the soil environment. This study aims to examine the earthworm distribution through the shallow soil profile and its relation to soil characteristics using oil palm and rubber plantations, compared with a natural forest in Galle District, Sri Lanka, to understand impacts of vegetation alterations. Soil samples were collected from 0 to 10, 10–20, and 20–30 cm depths (9 points/layer/site). The earthworm count was taken manually to determine the earthworm density (EWD). The C stock of forest soil in three soil layers was significantly higher than that of rubber and oil palm. In all sites, the topsoil showed the highest C stock, however, the differences between layers were not significant. Forest soils showed the highest EWD, although there was no significant difference between the three sites. The topsoil layer of all sites showed significantly higher EWD. In forest soil, EWD showed a strong negative correlation (R2 = 0.81) with bulk density, a strong positive correlation with porosity (R2 = 0.78), and a moderate positive correlation (R2 = 0.57) with organic matter content. The EWD in rubber and oil palm soils showed positive correlations with organic matter content, which were not statistically significant. Literature shows that the earthworm abundance has strong positive correlations with N fertilizer. The forest has intact soil environments while the tested oil palm and rubber plantations annually receive high amounts of N. Accordingly, the creation of a favorable soil environment for the growth and development of earthworms with the addition of N fertilizer might be the reason for these results.","PeriodicalId":8978,"journal":{"name":"Biologia","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141496160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Keratin hydrolysates: a sustainable product in biotechnology sectors by microbial conversion 角蛋白水解物：微生物转化生物技术领域的可持续产品

IF 1.5 4区生物学

Biologia Pub Date : 2024-06-21 DOI: 10.1007/s11756-024-01725-2

Kanchan Mukesh, Priya Kannan, Lilly M. Saleena

{"title":"Keratin hydrolysates: a sustainable product in biotechnology sectors by microbial conversion","authors":"Kanchan Mukesh, Priya Kannan, Lilly M. Saleena","doi":"10.1007/s11756-024-01725-2","DOIUrl":"https://doi.org/10.1007/s11756-024-01725-2","url":null,"abstract":"The increasing population and demand for food and feed have increased the urge to find protein sources from waste products. Due to poor management of waste valorization, it has become a pollutant to the environment. This waste can be converted into a valuable product by microbial degradation. Feather waste from poultry farms can be efficiently processed into hydrolysates, serving as an additive or in its crude form for animal feed and detergents. This approach not only reduces pollution but also boosts the economy of a country. Keratin is a hard fibrous protein, insoluble in water and organic solvents. They are accumulated in nature and are major components of feathers, nails, hairs, and wool. Microorganisms like bacteria, fungi, and actinomycetes can degrade keratin by producing the keratinase enzyme. Keratinases are thought to be promising biocatalysts for the production of animal nutrients, protein supplements, leather processing, fibre modification, detergent formulations, and pharmaceutical, cosmetic, and biomedical industries. An overview of keratin structure and composition, the mechanism of microbial hydrolysis of keratin, and their possible uses in biotechnological sectors are presented in this review.","PeriodicalId":8978,"journal":{"name":"Biologia","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141496159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The net-tube caddisflies (Trichoptera: Psychomyioidea: Xiphocentronidae) from the Brazilian Amazon: discovery of new species and reports of new distributional records 巴西亚马逊河流域的网管蝶（毛翅目：精神鞘翅目：Xiphocentronidae）：新物种的发现和新分布记录的报告

IF 1.5 4区生物学

Biologia Pub Date : 2024-06-20 DOI: 10.1007/s11756-024-01700-x

Gleison R. Desidério, Albane Vilarino, Laissa S. Santos, Marcos A. R. Pires, Ana M. Pes, Talissa Matos, Karina Dias-Silva, Neusa Hamada

{"title":"The net-tube caddisflies (Trichoptera: Psychomyioidea: Xiphocentronidae) from the Brazilian Amazon: discovery of new species and reports of new distributional records","authors":"Gleison R. Desidério, Albane Vilarino, Laissa S. Santos, Marcos A. R. Pires, Ana M. Pes, Talissa Matos, Karina Dias-Silva, Neusa Hamada","doi":"10.1007/s11756-024-01700-x","DOIUrl":"https://doi.org/10.1007/s11756-024-01700-x","url":null,"abstract":"Xiphocentronidae comprises eight genera found across tropical regions. In Brazil, two genera are present: Xiphocentron Brauer, 1870 and Machairocentron Schmid, 1982. Xiphocentron is further divided into five subgenera: Xiphocentron (Antillotrichia) Banks, 1941, X. (Glyphocentron) Schmid, 1982, X. (Rhamphocentron) Schmid, 1982, X. (Sphagocentron) Schmid, 1982, and X. (Xiphocentron). Xiphocentron (Antillotrichia) is the most species-rich subgenus and the only one occurring in South America. In Brazil, there are 18 species of X. (Antillotrichia), mainly distributed in the Atlantic Forest, with one species recorded in the Brazilian Amazon. Machairocentron, another Neotropical genus, comprises nine species, but only one species is known in Brazil. Recent research in the Brazilian Amazon led to the discovery of three new species of Xiphocentron: Xiphocentron (Antillotrichia) moa sp. n., Xiphocentron tapajos sp. n., and Xiphocentron (Antillotrichia) xingu sp. n. This study describes and illustrates these species, focusing on adult males, and highlighting the distinctive morphology of segment IX and inferior appendages. New distribution records are provided for X. (Antillotrichia) sclerothrix Pes & Hamada, 2013 and M. falciforme Pes & Hamada, 2013 . Additionally, M. amahuaca Vilarino, Salles & Bispo, 2023 and X. (Antillotrichia) surinamense Flint, 1974 are reported for the first time in Brazil.","PeriodicalId":8978,"journal":{"name":"Biologia","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141500607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Leaf temperatures of an Austrian oak are below photosynthetic temperature thresholds during a heatwave in Central Europe 中欧热浪期间奥地利橡树叶片温度低于光合作用温度阈值

IF 1.5 4区生物学

Biologia Pub Date : 2024-06-17 DOI: 10.1007/s11756-024-01722-5

Norbert Kunert

{"title":"Leaf temperatures of an Austrian oak are below photosynthetic temperature thresholds during a heatwave in Central Europe","authors":"Norbert Kunert","doi":"10.1007/s11756-024-01722-5","DOIUrl":"https://doi.org/10.1007/s11756-024-01722-5","url":null,"abstract":"The summer of 2022 has been the so far hottest summer on record in Central Europe. High temperatures negatively affect the physiology of plants and cause considerable thermal stress in particular on the leaf level. The assessment of the temperature-dependent decline of the quantum use efficiency of the photosystem II (Fv/Fm) has gained much popularity to quantify the leaf-level sensitivity to thermal stress. An open question is whether leaves heat to those in vitro estimated threshold temperatures on hot days or if plants can avoid heat stress through transpirational cooling. Therefore, leaf temperatures were monitored on a non-native Austrian oak (Quercus cerris) during a heatwave in July 2022 and compared to observed air temperature and leaf thermal traits assessed with a chlorophyll fluorometer. The highest air temperature recorded during the heatwave was 42.5 °C and surpassed the breaking point temperature (temperature at 5% decline of Fv/Fm; T5) by 0.3 °C, but was 6.1 °C lower than T50 (temperature at 50% decline of Fv/Fm). However, during the hottest day, the maximum leaf temperature was significantly below the air temperature. Even the directly illuminated leaf facing south reached a maximum temperature of only 38.7 °C but reached 39.8 °C on the second hottest day when the air temperature went up to 39.6 °C. All leaves showed a certain degree of homeothermy as the slope between leaf temperature and air temperature was 0.83 (P < 0.05). In conclusion, Austrian oak can buffer thermal stress during heatwaves to a certain degree, however, leaf temperatures are only marginally below critical threshold temperatures.","PeriodicalId":8978,"journal":{"name":"Biologia","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141514882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

What is the diversity and pattern of network interactions parasite-host in amphibians (Anura) from Caatinga domain? – A meta-analysis 卡廷加域两栖动物（Anura）寄生-宿主网络互动的多样性和模式是什么？- 荟萃分析

IF 1.5 4区生物学

Biologia Pub Date : 2024-06-17 DOI: 10.1007/s11756-024-01717-2

Ednalva da Silva Santos, Isabella Hevily Silva Torquato, Drausio Honorio Morais, Paulo Cascon, Charles de Sousa Silva

{"title":"What is the diversity and pattern of network interactions parasite-host in amphibians (Anura) from Caatinga domain? – A meta-analysis","authors":"Ednalva da Silva Santos, Isabella Hevily Silva Torquato, Drausio Honorio Morais, Paulo Cascon, Charles de Sousa Silva","doi":"10.1007/s11756-024-01717-2","DOIUrl":"https://doi.org/10.1007/s11756-024-01717-2","url":null,"abstract":"The first records in the literature compiled on the parasitic fauna of amphibians in Northeastern Brazil date back to the 1990s. Since then, several new studies have been published on parasite-host relationships, parasite communities, and descriptions of new taxa. However, only in the last decade has there been a significant increase in these studies. Given this growth, we aim to provide a complete and updated compilation of helminth records associated with amphibians from the Brazilian Northeastern region and to analyse the dynamics and network structure formed between parasites and their hosts. Therefore, 33 studies were found in the specialized literature that addressed data from eight families, 15 genera, and 34 species of anuran amphibians, distributed mainly in areas of the morphoclimatic domain of the Caatinga and Atlantic Forest remnants in the Brazilian Northeast. These data correspond to 35% of the total known species of the Caatinga, with Leptodactylidae being the most representative taxon. Regarding helminths, 51 species were recorded, belonging to 20 families and 32 genera. To evaluate the structure of the network, we used measures of connectivity, nestedness, modularity, and centrality, that were considered to identify key species. The web presented 247 interactions with a highly connected structure formed by two parasite generalist species, non-nested and non-modular. We concluded that anuran amphibians from the Brazilian Northeast possess a high parasitic diversity, being Bufonidae and Leptodactylidade taxa considered fundamental for the network structure. Herein, we provided the first analysis of the global framework of parasite communities in amphibians from Brazilian Northeast, by using antagonistic network interactions.","PeriodicalId":8978,"journal":{"name":"Biologia","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141514883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Distribution of plant species Iris sibirica and its vegetation affinity in Slovakia 植物物种西伯利亚鸢尾的分布及其在斯洛伐克的植被亲缘关系

IF 1.5 4区生物学

Biologia Pub Date : 2024-06-17 DOI: 10.1007/s11756-024-01719-0

Richard Hrivnák, Michal Slezák, Matej Dudáš, Dobromil Galvánek, Tereza Labovská, Tatiana Miháliková

{"title":"Distribution of plant species Iris sibirica and its vegetation affinity in Slovakia","authors":"Richard Hrivnák, Michal Slezák, Matej Dudáš, Dobromil Galvánek, Tereza Labovská, Tatiana Miháliková","doi":"10.1007/s11756-024-01719-0","DOIUrl":"https://doi.org/10.1007/s11756-024-01719-0","url":null,"abstract":"Iris sibirica is a threatened plant species of the Central European flora, but its distribution and vegetation ecology in Slovakia have not been studied so far. Therefore, we aimed to compile a complex chorology of this species and to analyse phytosociological plots with the species occurrence. Our results suggest that Iris sibirica occurs almost in the whole Slovakia, with two distributional centres situated in the south-western region (Pannonian bioregion) and in the southern regions of central Slovakia (Carpathian bioregion), but a higher proportion of recent records was identified in the Carpathians. Vegetation classification using the TWINSPAN algorithm divided 80 vegetation plots into 5 clusters. They were interpreted syntaxonomically as follows: i) Calthion palustris alliance, ii) Deschampsion cespitosae alliance, iii) Molinion caeruleae alliance, iv) vegetation of the successional stages and transitional status between wet meadows (Calthion palustris and Molinion caeruleae) and fens (Scheuchzerio palustris-Caricetea fuscae), and v) vegetation with a transitional status between hygrophilous, fen vegetation of the alliances Molinion caeruleae, Caricion davallianae, Caricion fuscae and mesic habitats. Variation in the species composition of vegetation plots, analysed using detrended correspondence analysis (DCA) and interpreted using Ellenberg indicator values for vascular plants, showed a shift along the first DCA axis from taxa typical for nutrient-rich and shaded but thermophilic sites to taxa of open and relatively cold habitats on nutrient-poor soils. The second DCA axis corresponded to the moisture gradient, which controlled the pattern of plant species richness.","PeriodicalId":8978,"journal":{"name":"Biologia","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141500606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

First insights into the complete mitochondrial genome of a deep-sea eel Congriscus megastoma (Anguilliformes, Congroidei, Congridae): characterization and phylogenetic inference 首次发现深海鳗鲡Congriscus megastoma（鳗形目，鳗鲡科，Congridae）的完整线粒体基因组：特征描述和系统发育推断

IF 1.5 4区生物学

Biologia Pub Date : 2024-06-17 DOI: 10.1007/s11756-024-01718-1

Yuping Liu, Peiyi Xiao, Tianyan Yang

{"title":"First insights into the complete mitochondrial genome of a deep-sea eel Congriscus megastoma (Anguilliformes, Congroidei, Congridae): characterization and phylogenetic inference","authors":"Yuping Liu, Peiyi Xiao, Tianyan Yang","doi":"10.1007/s11756-024-01718-1","DOIUrl":"https://doi.org/10.1007/s11756-024-01718-1","url":null,"abstract":"The complete mitochondrial DNA sequence of a deep-sea eel Congriscus megastoma (Anguilliformes: Congridae) was determined by high throughput sequencing technology. As the first mitogenome of the genus Congriscus up to now, its entire mtDNA sequence was 17,616 bp in length, including 37 mitochondrial genes (13 protein-coding genes, 2 rRNA genes, 22 tRNA genes) and 2 control regions, which was inconsistent with that of the typical vertebrate mitogenomes. In addition, the genes of C. megastoma exhibited an obvious rearrangement. ND6 and tRNA-Glu were transferred between tRNA-Thr and tRNA-Pro, as well as a doubled control region appeared. The tandem duplication-random loss (TDRL) model was an ideal explanation for this irregular gene reorganization phenomenon. The Bayesian phylogenetic tree showed that Congridae species were divided into four clades, suggesting their non-monophyletic origin. Congriscus had the closest relationships with Thalassenchelys and Coloconger. Species with gene rearrangement separately clustered as one clade. The results provided a basis for future studies of mitochondrial DNA structure and phylogeny of Anguilliformes.","PeriodicalId":8978,"journal":{"name":"Biologia","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141514884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Two new species of Pholiota (Strophariaceae) from India 来自印度的两个 Pholiota （Strophariaceae）新种

IF 1.5 4区生物学

Biologia Pub Date : 2024-06-12 DOI: 10.1007/s11756-024-01715-4

Juna Tamang, Alisha Thapa, Krishnednu Acharya

引用次数: 0