Anales de Biologia最新文献_第4页

Evaluation of the antimicrobial and resistance-modulating activities of extracts and fractions of Piper mollicomum (Piperaceae) 胡椒科胡椒提取物和组分的抑菌活性及耐药性调控活性评价

Anales de Biologia Pub Date : 2020-12-01 DOI: 10.6018/analesbio.42.17

Ana R P Silva, M. A. Lima, J. Andrade, C. E. Souza, M. Costa, M. Freitas, H. Coutinho

{"title":"Evaluation of the antimicrobial and resistance-modulating activities of extracts and fractions of Piper mollicomum (Piperaceae)","authors":"Ana R P Silva, M. A. Lima, J. Andrade, C. E. Souza, M. Costa, M. Freitas, H. Coutinho","doi":"10.6018/analesbio.42.17","DOIUrl":"https://doi.org/10.6018/analesbio.42.17","url":null,"abstract":"\u0000Este estudio tuvo como objetivo evaluar las actividades antimicrobianas de diferentes extractos de Piper mollicomum Kunth ex Steud. contra cepas estándar y resistentes a múltiples fármacos de bacterias y hongos, así como analizar su potencial para modular la resistencia a los antimicrobianos. Los datos obtenidos en este trabajo demostraron una actividad potenciadora de antibióticos prometedora por parte de P. mollicomum, alentando el desarrollo de nuevas investigaciones para caracterizar las propiedades toxicológicas y farmacológicas de los extractos y compuestos aislados de esta especie, que pueden contribuir al desarrollo de nuevos agentes terapéuticos para combatir la resistencia a los antimicrobianos.\u0000\u0000\u0000This study aimed to evaluate the antimicrobial activities of different extracts of Piper mollicomum Kunth ex Steud. against standard and multidrug resistant strains of bacteria and fungi, as well as to analyze their potential to modulate antimicrobial resistance. The data obtained in this work demonstrated promising antibiotic-enhancing activity by P. mollicomum, encouraging the development of further research to characterize the toxicological and pharmacological properties of the extracts and isolated compounds of this species, which may contribute to the development of new therapeutic agents to combat antibacterial resistance.\u0000","PeriodicalId":53282,"journal":{"name":"Anales de Biologia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42332500","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

Recovery of pure C-phycoerythrin from a limestone drought tolerant cyanobacterium Nostoc sp. and evaluation of its biological activity 从石灰石耐干旱蓝藻Nostoc sp.中回收纯c -藻红蛋白及其生物活性评价

Anales de Biologia Pub Date : 2020-09-06 DOI: 10.6018/ANALESBIO.42.13

B. Nowruzi, H. Fahimi, A. Lorenzi

{"title":"Recovery of pure C-phycoerythrin from a limestone drought tolerant cyanobacterium Nostoc sp. and evaluation of its biological activity","authors":"B. Nowruzi, H. Fahimi, A. Lorenzi","doi":"10.6018/ANALESBIO.42.13","DOIUrl":"https://doi.org/10.6018/ANALESBIO.42.13","url":null,"abstract":"\u0000Se realizó la caracterización de ficoeritrina de la cepa A5 de Nostoc sp., seguida de investigación de su actividad biológica para aplicaciones biotecnológicas. Para la extracción de ficoeritrina, el uso de tampón acetato (pH 5.1) produjo 65.04 µg mL-1, y se identificó como C-ficoeritrina. Los resultados de su actividad antioxidante sugirieron su acción como un potente eliminador de radicales libres. Además, la C-ficoeritrina de Nostoc mostró una capacidad notable como agente antibacteriano y antifúngico, con estabilidad significativa de hasta 10 días. La glucosa (4 mg mL-1) fue un buen conservante para la C-ficoeritrina a 25 y 4 ºC. Se obtuvo por primera vez una C-ficoeritrina estable de Nostoc sp. en condiciones de sequía en piedra caliza, lo que demuestra la necesidad de estudiar microorganismos de ambientes extremos.\u0000\u0000\u0000The phycoerythrin characterization from Nostoc sp. strain A5 was done, followed by investigation of its biological activity for biotechnological applications. For phycoerythrin extraction, the use of acetate buffer (pH 5.1) resulted in 65.04 µg mL-1, and C-phycoerythrin was identified. Results of its antioxidant activity suggested action as a potent free radical scavenger. In addition, Nostoc's C-phycoerythrin showed noteworthy ability for antibacterial and antifungal agents with significant stability up to 10 days. Glucose (4 mg mL-1) was a good preservative for C-phycoerythrin at 25 and 4 ºC. A stable C-phycoerythrin from Nostoc sp. was obtained for the first time from limestone drought conditions, showing the need of studying microorganisms from extreme environments.\u0000","PeriodicalId":53282,"journal":{"name":"Anales de Biologia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.6018/ANALESBIO.42.13","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44248334","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: 11

Morpho-anatomical variation and their phylogenetic implications in native and exotic species of Pinus L. growing in the Indian Himalayas 印度喜马拉雅地区本地和外来松林的形态解剖变异及其系统发育意义

Anales de Biologia Pub Date : 2020-07-07 DOI: 10.6018/analesbio.42.12

L. Singh, P. Dixit, R. Srivastava, Shivaraman Pandey, P. Verma, G. Saxena

引用次数: 2

Effects of particulate matter under behavioral, hematological and biochemical parameters in Wistar rats 颗粒物对Wistar大鼠行为学、血液学和生化指标的影响

Anales de Biologia Pub Date : 2020-06-29 DOI: 10.6018/analesbio.42.11

Samanta Cristina-Siebel-de-Moraes, Victória Branca Moron, Aline Belem-Machado, Paula Schmitt, Daniela Montanari-Migliavacca-Osorio, Daiane Bolzan-Berlese

{"title":"Effects of particulate matter under behavioral, hematological and biochemical parameters in Wistar rats","authors":"Samanta Cristina-Siebel-de-Moraes, Victória Branca Moron, Aline Belem-Machado, Paula Schmitt, Daniela Montanari-Migliavacca-Osorio, Daiane Bolzan-Berlese","doi":"10.6018/analesbio.42.11","DOIUrl":"https://doi.org/10.6018/analesbio.42.11","url":null,"abstract":"\u0000El Material Particulado (MP) puede alterar los procesos cognitivos, el comportamiento depresivo y hematológico en el modelo animal. El objetivo fue evaluar los efectos causados por MP en los parámetros conductuales, hematológicos y bioquímicos en un modelo animal. Se observaron alteraciones en la actividad locomotora de las ratas, donde hubo una disminución significativa en la locomoción del Grupo 3 (MP10) en comparación con los Grupo 1 (Control) y Grupo 2 (MP2,5). Con respecto al comportamiento de ansiedad, el Grupo 3 pasó significativamente más tiempo en brazos abiertos en comparación con el control y MP2,5. No se observaron cambios hematológicos y bioquímicos. En este estudio, se concluye que, la exposición a la MP puede causar daño neurológico y, en consecuencia, afectar a otros sistemas. \u0000\u0000\u0000Particulate matter (PM) can alter the cognitive processes, the depressive behavior, and the hematological profile in animals. This study aimed to evaluate the effects on behavioral, hematological, and biochemical parameters caused by PM in an animal model. A significant decrease in the locomotion activity of Group 3 (PM10) in relation to Group 1 (Control) and Group 2 (PM2.5) was observed. Regarding the anxiety behavior, Group 3 remained significantly the most part of the time in the open arms when compared to the control and PM2.5 groups. No hematological or biochemical alterations were observed among groups. In this study, we concluded that the exposure to particulate matter can cause neurological damages, and consequently, affect other systems.\u0000","PeriodicalId":53282,"journal":{"name":"Anales de Biologia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43806037","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

Phytochemical analysis, antibacterial activity and antibiotic modifying action of Jatropha mollissima (Pohl.) Baill. (Euphorbiaceae) 麻疯树(Jatropha mollissima)的植物化学分析、抗菌活性及抗生素修饰作用Baill。(大戟科)

Anales de Biologia Pub Date : 2020-06-15 DOI: 10.6018/analesbio.42.10

Noelly Bastos-Cavalcante, Cristina Rodrigues dos Santos-Barbosa, Raimundo Luiz Silva-Pereira, Débora Feitosa-Muniz, Henrique Douglas de Melo-Coutinho, Larissa Araújo-Rolim, J. Almeida

{"title":"Phytochemical analysis, antibacterial activity and antibiotic modifying action of Jatropha mollissima (Pohl.) Baill. (Euphorbiaceae)","authors":"Noelly Bastos-Cavalcante, Cristina Rodrigues dos Santos-Barbosa, Raimundo Luiz Silva-Pereira, Débora Feitosa-Muniz, Henrique Douglas de Melo-Coutinho, Larissa Araújo-Rolim, J. Almeida","doi":"10.6018/analesbio.42.10","DOIUrl":"https://doi.org/10.6018/analesbio.42.10","url":null,"abstract":"\u0000La aparición de cepas bacterianas resistentes y los efectos secundarios de sus fármacos disponibles han hecho investigar nuevos compuestos antibacterianos bioactivos. Jatropha mollissima es una planta endémica del bioma Caatinga, Brasil. Existen informes en la literatura de que esta especie tiene acción antioxidante, antibacteriana y antiproliferativa. El presente estudio tuvo como objetivo evaluar el potencial antibacteriano y modulador de J. mollissima contra cepas bacterianas multirresistentes. El perfil fitoquímico se obtuvo por cromatografía de gases junto con espectrometría de masas. J. mollissima mostró actividad antibacteriana moderada y moduló la actividad del antibiótico Norfloxacino, promoviendo una relación antagonista. Este fue el primer estudio de este tipo realizado con J. mollissima.\u0000\u0000\u0000The emergence of resistant bacterial strains and the significant increase in side effects of currently available antibacterial drugs have made it urgent to develop research to identify new bioactives antibacterial compounds. Jatropha mollissima is a plant endemic to the Caatinga biome, Brazil and this species has antioxidant, antibacterial and antiproliferative action. The present study aimed to evaluate the antibacterial and modulatory potentials of J. mollissima against multiresistant bacterial strains. The phytochemical profile was obtained from gas chromatography coupled to mass spectrometry. J. mollissima presented moderate antibacterial activity and modulated the activity of the antibiotic Norfloxacin, promoting an antagonistic relationship. This was the first study of this nature carried out with J. mollissima.\u0000","PeriodicalId":53282,"journal":{"name":"Anales de Biologia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46636735","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: 3

Byproducts from cassava industry: alternative substrates for cyclodextrin glycosyltransferase production by alkalophilic Bacillus trypoxylicola SM–02 木薯工业的副产品:嗜碱的trypoxylicola SM-02生产环糊精糖基转移酶的替代底物

Anales de Biologia Pub Date : 2020-03-31 DOI: 10.6018/analesbio.42.05

Carine Mascena Peixoto, Sheila Coelho, M. L. Cazetta

{"title":"Byproducts from cassava industry: alternative substrates for cyclodextrin glycosyltransferase production by alkalophilic Bacillus trypoxylicola SM–02","authors":"Carine Mascena Peixoto, Sheila Coelho, M. L. Cazetta","doi":"10.6018/analesbio.42.05","DOIUrl":"https://doi.org/10.6018/analesbio.42.05","url":null,"abstract":"Bioproductos de la industria de la yuca: sustratos alternativos para la producción de ciclodextrina glucosiltransferasa por alcalófilo Bacillus trypoxylicola SM-02\u0000En el presente trabajo estudiamos el uso licor de maíz fermentado (LMF), harina de cáscara de yuca (HCY) y aguas residuales de yuca para la producción de ciclodextina glicosiltransferasa (CGTase) por un nuevo aislado alcalófilo de Bacillus trypoxylicola SM-02 en fermentación sumergida. Los experimentos se realizaron por Diseño Central Compuesto Rotativo 22 totalizando 11 ensayos. La mayor actividad enzimática de 352.53 U/mL se obtuvo con 1.5 g de HCY y 0.6 g de LMF. La temperatura y el pH óptimos fueron 55 ºC y pH 8.0, respectivamente. CGTase mostró una actividad relativa superior al 50% durante 120 min. a la temperatura óptima. Solo el CaCl2 mostró actividad positiva para CGTasa. Los resultados apuntaron a un buen potencial de B. trypoxylicola SM-02 para la producción de CGTasa usando substratos residuales.\u0000\u0000\u0000In the present work was studied the use of cassava peel flour (CPF), corn steep liquor (CSL), and cassava wastewater as substrates to produce cyclodextrin glycosyltransferase (CGTase) from a new alkalophilic isolate of Bacillus trypoxylicola SM-02 by submerged fermentation. The experiments were performed as a Central Composite Design 22, totalizing 11 assays. An enzymatic activity of 352.53 U/mL was obtained using 1.5 g of CPF and 0.6 g of CSL. The optimum temperature and pH of CGTase was 55 °C and 8.0, respectively. The CGTase depicted a relative activity of more than 50% for 120 min at the optimum temperature. The only salt that positively influenced the CGTase activity was CaCl2. The results are indicative of a potential role of B. trypoxylicola SM-02 in the production of CGTase using residual substrates.\u0000","PeriodicalId":53282,"journal":{"name":"Anales de Biologia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.6018/analesbio.42.05","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43709578","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: 3

New chorological records for the Iberian Bryophyte Flora. IX 伊比利亚苔藓植物区系的新年代记录。9

Anales de Biologia Pub Date : 2020-02-17 DOI: 10.6018/analesbio.42.01

M. Cano, J. Guerra

引用次数: 1

Non-indigenous terrestrial flatworms in Torrevieja (Alicante): presence of Bipalium cf. kewense Mosely, 1878 (Platyhelminthes, Tricladida, Geoplanidae) Torrevieja（阿利坎特）的非本土陆地扁虫：Bipalium的存在参见kewense Mosely，1878（Platyhelmintes，Tricladida，Geoplanidae）

Anales de Biologia Pub Date : 2019-12-01 DOI: 10.6018/analesbio.41.09

J. Pujol, Nicolás Andrés Ubero Pascal

引用次数: 0

Lewinskya laevigata (J.E. Zetterst.) F. Lara et al. (Bryophyta, Orthotrichaceae) in Sierra Nevada (Spain) 莱温斯基(J.E.蔡特斯特)F. Lara et al.内华达山脉(西班牙)苔藓植物

Anales de Biologia Pub Date : 2019-12-01 DOI: 10.6018/ANALESBIO.41.01

J. Guerra

引用次数: 0

Biodiversity of bulbous and tuberous geophytes from the El Kala National Park (North-Eastern Algeria): checklist, vulnerability and conservation 阿尔及利亚东北部埃尔卡拉国家公园球茎和块茎地植物的生物多样性:清单、脆弱性和保护

Anales de Biologia Pub Date : 2019-12-01 DOI: 10.6018/ANALESBIO.41.05

Besma Dechir, A. Chouikh, T. Hamel, N. Azizi, Nawel Ganaoui, AbdSlem Grira, Ahmed Abdiouene, M. Maazi, A. Chefrour

{"title":"Biodiversity of bulbous and tuberous geophytes from the El Kala National Park (North-Eastern Algeria): checklist, vulnerability and conservation","authors":"Besma Dechir, A. Chouikh, T. Hamel, N. Azizi, Nawel Ganaoui, AbdSlem Grira, Ahmed Abdiouene, M. Maazi, A. Chefrour","doi":"10.6018/ANALESBIO.41.05","DOIUrl":"https://doi.org/10.6018/ANALESBIO.41.05","url":null,"abstract":"\u0000Treinta estaciones en el Parque Nacional El Kala (Noreste de Argelia) fueron objeto de un inventario florístico que se centró en el estudio de la ecología de geófitos bulbosos y tuberosos. La flora se caracteriza por una alta proporción de taxones raros y/o endémicos, entre ellos, 6 especies son endemismos algero-tunecinos pertenecientes a la familia Orchidaceae. En este trabajo, se da a conocer la presencia de una nueva especie para la flora argelina, Ophrys fusca subsp. lupercalis. Los análisis multivariantes revelaron, ciertas variables ambientales que determinan la distribución de los geófitos. Los lugares de interés son particularmente sensibles a las amenazas, particularmente las de origen antrópico.\u0000\u0000\u0000Thirty stations at the El Kala National Park (North Eastern Algeria) were the subject of a floristic focused on the study of the ecology of bulbous and tuberous geophytes. The floristic analysis was used to draw up a checklist of 67 species belonging to 36 genera and 14 families, among of which 19 species a high proportion of rare and/or endemic taxa; among them six signed taxa are endemic to algerian-tunisian mainly represented by family of Orchidaceae. In this work, we recorded the presence of a new species for the Algerian flora which is Ophrys fusca subsp. lupercalis. Multivariate analyses revealed certain environmental variables determining the distribution of geophytes. The visited sites show an alarming vulnerability and subject to threats, particularly anthropogenic ones.\u0000","PeriodicalId":53282,"journal":{"name":"Anales de Biologia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46240239","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: 2