Anais da Academia Brasileira de Ciencias最新文献_第9页

Trypanosoma cruzi RNA-binding protein DRBD3: perinuclear foci formation during benznidazole exposure. 克氏锥虫 RNA 结合蛋白 DRBD3：在苯并咪唑暴露过程中形成核周病灶。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2024-11-22 eCollection Date: 2024-01-01 DOI: 10.1590/0001-3765202420240321

Daniela F Chame, Daniela DE Laet-Souza, Helaine G S Vieira, Erich B Tahara, Andrea Mara Macedo, Carlos Renato Machado, Glória Regina Franco

{"title":"Trypanosoma cruzi RNA-binding protein DRBD3: perinuclear foci formation during benznidazole exposure.","authors":"Daniela F Chame, Daniela DE Laet-Souza, Helaine G S Vieira, Erich B Tahara, Andrea Mara Macedo, Carlos Renato Machado, Glória Regina Franco","doi":"10.1590/0001-3765202420240321","DOIUrl":"https://doi.org/10.1590/0001-3765202420240321","url":null,"abstract":"Benznidazole (BZ) is the trypanocidal compound of choice for Chagas disease, a neglected tropical disease in the Americas. However, this drug often fails to cure the infection. The regulation of gene expression in Trypanosoma cruzi, the causative agent of Chagas disease, is based on post-transcriptional mechanisms. When environmental changes cause translational arrest, RNA-binding proteins, and their target mRNAs assemble into cytoplasmic bodies, known as RNA granules, which act as RNA sorting centers. We have characterized the T. cruzi RNA-binding protein DRBD3, which has two RRMs domains, and a C-terminal low-complexity sequence rich in proline and glutamines. Using a tagged form of TcDRBD3 (rTcDRBD3), we showed that this protein resides in the cytoplasm, but localizes into perinuclear cytoplasmic foci after BZ exposure. RNA staining after BZ also showed that this molecule accumulates into perinuclear cytoplasmic foci. Moreover, BZ and puromycin treatment enhanced the colocalization of rTcDRBD3 and RNA, suggesting that TcDRBD3 granules repertoire harbors RNAs released from polysomes. Under starvation, rTcDRBD3 granules localized throughout the cytoplasm and also increased in number in the presence of puromycin. Our results suggest that TcDRBD3 accumulates into perinuclear granules that harbor RNA and also that its localization varies according to the type of stress.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"96 4","pages":"e20240321"},"PeriodicalIF":1.1,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142738103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Glycerol derived from biodiesel can replace maize in diets for juvenile silver catfish (Rhamdia quelen). 从生物柴油中提取的甘油可替代银鲴幼鱼（Rhamdia quelen）日粮中的玉米。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2024-11-22 eCollection Date: 2024-01-01 DOI: 10.1590/0001-3765202420240293

Marlise T Mauerwerk, Izabel V Zadinelo, Rafaela M Gonçalves, Lilian D Dos Santos, Rafael E Balen, Fábio Meurer

{"title":"Glycerol derived from biodiesel can replace maize in diets for juvenile silver catfish (Rhamdia quelen).","authors":"Marlise T Mauerwerk, Izabel V Zadinelo, Rafaela M Gonçalves, Lilian D Dos Santos, Rafael E Balen, Fábio Meurer","doi":"10.1590/0001-3765202420240293","DOIUrl":"https://doi.org/10.1590/0001-3765202420240293","url":null,"abstract":"The aim of the present study was to evaluate the effect of maize replacement by crude biodiesel-derived glycerol on the zootechnical performance, chemical carcass composition and blood parameters of silver catfish (Rhamdia quelen) juveniles. A total of 600 silver catfish juveniles were distributed in a completely randomized design with six treatments comprised of isoproteic and isoenergetic pelleted diets with six levels of glycerol replacing maize, and five replicates. The glycerol maize substitution significantly influenced (p < 0.05) the final weight, clean trunk production and headless carcass yield, with the highest values for both parameters observed in the 100% substitution treatment, significantly different compared to the 0% replacement treatment. Plasmatic calcium, alkaline phosphatase, glucose, total proteins, oxaloacetic and pyruvic glutamic transaminase concentrations were not influenced (p < 0.05) by the dietary treatments, nor were moisture, crude protein and mineral matter (p < 0.05). Crude glycerol can be included in up to 7.5% in juvenile silver catfish diets. Biodiesel-derived glycerol can, thus, successfully replace maize in juvenile silver catfish diets.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"96 suppl 3","pages":"e20240293"},"PeriodicalIF":1.1,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142738113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

New places for treasures of the Caatinga dry forest: the case of Pleroma caatingae (Melastomataceae), an unusual and threatened species. 卡廷加旱林珍宝的新去处：Pleroma caatingae（Melastomataceae）--一种不寻常且濒临灭绝的物种--的案例。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2024-11-22 eCollection Date: 2024-01-01 DOI: 10.1590/0001-3765202420240170

Luís Henrique X Portela, Rodrigo César Gonçalves-Oliveira, Juliana G Freitas, Elnatan B DE Souza

{"title":"New places for treasures of the Caatinga dry forest: the case of Pleroma caatingae (Melastomataceae), an unusual and threatened species.","authors":"Luís Henrique X Portela, Rodrigo César Gonçalves-Oliveira, Juliana G Freitas, Elnatan B DE Souza","doi":"10.1590/0001-3765202420240170","DOIUrl":"https://doi.org/10.1590/0001-3765202420240170","url":null,"abstract":"Melastomataceae comprises to 5,858 plant species across 173 genera globally. Brazil hosts the highest diversity for this family, including 1,453 species, with a great number of endemics. The Brazilian Caatinga is an important domain for Seasonally Dry Tropical Forests, Shrubs and Woodlands in South America, highlighting exceptional environmental diversity and hosting endemic and rare species. While the representation of Melastomataceae in the Caatinga is limited, the colonization of xeric environments by select species has garnered attention. One of these is Pleroma caatingae, a threatened species previously thought to be endemic to the state of Bahia, and recently collected in the Ceará state. This study provides an updated morphological description and uses a predictive Species Distribution Model (SDM) to predict potential species' distribution and conservation status. The findings not only enhance knowledge of neotropical species distribution patterns, but also highlight the importance of preserving overlooked arid habitats, such as the inselbergs, which harbor intriguing biodiversity as well.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"96 suppl 3","pages":"e20240170"},"PeriodicalIF":1.1,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142738121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sampling and collector biases as taphonomic filters: an overview. 采样和采集器偏差作为陶器学过滤器：概述。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2024-11-22 eCollection Date: 2024-01-01 DOI: 10.1590/0001-3765202420231242

Francesco Battista, Cesar L Schultz

{"title":"Sampling and collector biases as taphonomic filters: an overview.","authors":"Francesco Battista, Cesar L Schultz","doi":"10.1590/0001-3765202420231242","DOIUrl":"10.1590/0001-3765202420231242","url":null,"abstract":"Sampling (or sample) bias is a widespread concern in scientific research, across several disciplines. The concept of sampling bias originated in statistical studies. The consequence of a biased sample is that scientists will conclude about a population different from their target. In paleontology, sampling bias is typically related to fieldwork context. Human factors, known as sullegic (e.g. collection method, historic resampling) and trephic (transport, and curatorial processes) factors can generate bias. Other factor is the ugly fossil syndrome (i.e. choosing based on completeness of the specimens, or according to the researcher interest). Thus, sampling implies information loss. Biased samples add artificial results and can be considered an additional taphonomic filter. Therefore, sampling bias and the collector role and choices are frequently linked and almost indistinguishable. Compared to the treatment of this topic in other research fields, little related discussion has been held in vertebrate paleontology, especially regarding what happens at the interface between the biosphere, lithosphere, and anthroposphere, and during the transition between the anthroposphere and the patrisphere (museums). Numerous questions still arise. As a community, we must pay attention, to minimize the loss of information, from field activities to cataloging.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"96 4","pages":"e20231242"},"PeriodicalIF":1.1,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142738097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gray Level Co-occurrence Matrix textural analysis for temporal mapping of sea ice in Sentinel-1A SAR images. 用于绘制哨兵-1A合成孔径雷达图像中海冰时间图的灰度级共现矩阵纹理分析。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2024-11-22 eCollection Date: 2024-01-01 DOI: 10.1590/0001-3765202420240554

Fernando Luis Hillebrand, Juan D Prieto, Cláudio Wilson Mendes Júnior, Jorge Arigony-Neto, Jefferson C Simões

{"title":"Gray Level Co-occurrence Matrix textural analysis for temporal mapping of sea ice in Sentinel-1A SAR images.","authors":"Fernando Luis Hillebrand, Juan D Prieto, Cláudio Wilson Mendes Júnior, Jorge Arigony-Neto, Jefferson C Simões","doi":"10.1590/0001-3765202420240554","DOIUrl":"https://doi.org/10.1590/0001-3765202420240554","url":null,"abstract":"Sea ice is a critical component of the cryosphere and plays a role in the heat and moisture exchange processes between the ocean and atmosphere, thus regulating the global climate. With climate change, detailed monitoring of changes occurring in sea ice is necessary. Therefore, an analysis was conducted to evaluate the potential of using the Gray Level Co-occurrence Matrix (GLCM) texture analysis combined with the backscattering coefficient (σ°) of HH polarization in Sentinel-1A Synthetic Aperture Radar (SAR) images, interferometric imaging mode, for mapping sea ice in time series. Data processing was performed using cloud computing on the Google Earth Engine platform with routines written in JavaScript. To train the Random Forest (RF) classifier, samples of regions with open water and sea ice were obtained through visual interpretation of false-color SAR images from Sentinel-1B in the extra-wide swath imaging mode. The analysis demonstrated that training samples used in the RF classifier from a specific date can be applied to images from other dates within the freezing period, achieving accuracies ≥ 90% when using 64-bit grayscale quantization in GLCM combined with σ° data. However, when using only σ° data in the RF classifier, accuracies ≥ 93% were observed.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"96 suppl 2","pages":"e20240554"},"PeriodicalIF":1.1,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142737988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Hunga Tonga-Hunga Ha'apai volcanic barometric pressure pulse and meteotsunami travel recorded in several Antarctic stations. 在几个南极站记录到的 Hunga Tonga-Hunga Ha'apai 火山气压脉冲和元海啸旅行。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2024-11-22 eCollection Date: 2024-01-01 DOI: 10.1590/0001-3765202420240556

Heitor Evangelista, Paolo Grigioni, Luciano Pezzi, Francisco Dourado, Petra Heil, Franco N J Villela, Heber R Passos, Juliana Nogueira, Newton Magalhães, Marcelo Santini, Holger Schmithüsen, Ricardo Jaña, Taylor Norton, Cesar Amaral

{"title":"The Hunga Tonga-Hunga Ha'apai volcanic barometric pressure pulse and meteotsunami travel recorded in several Antarctic stations.","authors":"Heitor Evangelista, Paolo Grigioni, Luciano Pezzi, Francisco Dourado, Petra Heil, Franco N J Villela, Heber R Passos, Juliana Nogueira, Newton Magalhães, Marcelo Santini, Holger Schmithüsen, Ricardo Jaña, Taylor Norton, Cesar Amaral","doi":"10.1590/0001-3765202420240556","DOIUrl":"https://doi.org/10.1590/0001-3765202420240556","url":null,"abstract":"The Hunga Tonga-Hunga/Hunga-Ha'apai eruption on January 15, 2022 sent off a plume of ash material up to the stratosphere and triggered a meteotsunami and barometric pressure pulse that rippled through the atmosphere and oceans all around the world. The nature of the volcanic event and its global impacts on the oceans, atmosphere, lithosphere and the cryosphere are a matter of debate. Here we present a first overview of the time travel of the sound atmospheric pressure wave through the Antarctic continent based on in situ measurements, which represented a unique event observed through the polar ice sheet during the instrumental meteorological era. In addition, we estimated the tsunami travel time of the Hunga-Tonga event from a first order model to infer its impact over the Antarctic Sea ice and ice shelves. One outcome from our observations and modeling is the detection of the meteotsunami in the Antarctic Peninsula and the impact of the continental relief over the atmospheric pressure wave dispersion.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"96 suppl 2","pages":"e20240556"},"PeriodicalIF":1.1,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142738005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pedodiversity and ornithogenesis of a tiny Antarctic Island (Half Moon): landform-geology-vegetation interrelationships. 南极小岛（半月岛）的植被多样性和鸟类形成：地貌-地质-植被之间的相互关系。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2024-11-22 eCollection Date: 2024-01-01 DOI: 10.1590/0001-3765202420240581

Daniela Schmitz, Rafael G Siqueira, Roberto F M Michel, Antonio B Pereira, Jair Putzke, Marcio R Francelino, Carlos Ernesto G R Schaefer

{"title":"Pedodiversity and ornithogenesis of a tiny Antarctic Island (Half Moon): landform-geology-vegetation interrelationships.","authors":"Daniela Schmitz, Rafael G Siqueira, Roberto F M Michel, Antonio B Pereira, Jair Putzke, Marcio R Francelino, Carlos Ernesto G R Schaefer","doi":"10.1590/0001-3765202420240581","DOIUrl":"https://doi.org/10.1590/0001-3765202420240581","url":null,"abstract":"The harsh Antarctic climate limits soil formation and the development of terrestrial ecosystems, with most biological activity concentrated in the short summer season in ice-free areas. There, penguins play a crucial role in nutrient transport from marine to terrestrial environments, significantly impacting soil properties through guano deposition. This study focuses on characterizing the ornithogenic soils of Half Moon Island in Maritime Antarctica, examining how lithology, vegetation, and geomorphology influence their formation and distribution. Fieldwork conducted during the 2014/2015 austral summer included excavating and sampling 21 soil profiles. Soils were analyzed for physical and chemical properties and classified. Half Moon Island's soils are predominantly Cryosols and Leptosols, characterized by little development, high gravel content (skeletic), and significant cryoturbation. High variability in soil chemical properties was observed, with principal component analysis highlighting distinct clusters based on landscape position, geology, vegetation and ornithogenic influence. The findings underscore the diverse pedoenvironments of Half Moon Island, shaped by past and present ornithogenic activity and post-glacial geomorphological processes. This research highlights the soil variability in Antarctic environments and the significant ecological importance of seabird colonies on small, isolated islands.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"96 suppl 2","pages":"e20240581"},"PeriodicalIF":1.1,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142738004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Brazilian Student and Professor Mobility. 巴西学生和教授的流动性。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2024-11-22 eCollection Date: 2024-01-01 DOI: 10.1590/0001-3765202420240340

Concepta McManus, Abilio A Baeta Neves, Timothy J Finan, Felipe Pimentel, Daniel Pimentel, Rafael T Schleicher, Brenno A D Neto, Claúdia P Figueiredo

{"title":"Brazilian Student and Professor Mobility.","authors":"Concepta McManus, Abilio A Baeta Neves, Timothy J Finan, Felipe Pimentel, Daniel Pimentel, Rafael T Schleicher, Brenno A D Neto, Claúdia P Figueiredo","doi":"10.1590/0001-3765202420240340","DOIUrl":"https://doi.org/10.1590/0001-3765202420240340","url":null,"abstract":"In this paper, we looked at the effect of mobility by students, post-doctorates and professors on science in Brazil. We analysed CAPES, CNPq, FAPESP and Incites data to examine the number of scholarships and their impact on posterior publishing. Decision trees, including the region of the country, length of stay by student and Professor, as well as institution abroad, were evaluated, along with logistic regressions. The number of incoming professionals to Brazil is still incipient. The number of undergrad students was not crucial in forming scientific ties, but the number of postgraduates (> 180 days) and professor stays (>90 days) was important. The highest impact factor of publications shows a greater probability of higher impact with more than six postgraduate students going to institutions in the global north region and professors staying for more than 90 days. Looking only at doctors and professors (Mobility after training), the country of most interest was the United States, followed by France and England, which are similar regarding professors. France had a greater emphasis on postdoctoral studies. Databases need to be improved to include factors such as gender and color/race as well as the origin of scholars from abroad.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"96 4","pages":"e20240340"},"PeriodicalIF":1.1,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142738007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mobility assessment of potentially toxic elements contained in flotation and cyanidation tailings dam from gold mine located in Brazil. 巴西金矿浮选和氰化尾矿坝所含潜在有毒元素的流动性评估。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2024-11-15 eCollection Date: 2024-01-01 DOI: 10.1590/0001-3765202420240192

Danielle C DE Castro, Nathalia O A Dos Anjos, Daniel A Barcelos, Karoline K Ferreira, Fernanda A N G DA Silva, Fernanda V M Pontes, Aline M Dos S Teixeira, Zuleica C Castilhos

{"title":"Mobility assessment of potentially toxic elements contained in flotation and cyanidation tailings dam from gold mine located in Brazil.","authors":"Danielle C DE Castro, Nathalia O A Dos Anjos, Daniel A Barcelos, Karoline K Ferreira, Fernanda A N G DA Silva, Fernanda V M Pontes, Aline M Dos S Teixeira, Zuleica C Castilhos","doi":"10.1590/0001-3765202420240192","DOIUrl":"https://doi.org/10.1590/0001-3765202420240192","url":null,"abstract":"In Brazil, the recurring environmental impacts due to insufficient inspection and inadequate management of potentially toxic mining tailings have raised significant concerns. The study concentrates on examining the mobility of elements in flotation (ft) and cyanidation (ct) tailings from gold mining operations, following successive extractions. The influence of extractants on the release of elements from both ft and ct samples, including As, Cd, Cu, Cr, Pb, Se, and Zn, was examined and compared to the ABNT NBR 10004:2004 standard. The samples were obtained from a gold mining company in Brazil. Sequential extraction tests for ft and ct samples were conducted to simulate weathering effects, using solutions of 0.1 mol L-1 citric acid, 0.1 mol L-1 acetic acid, 0.1 mol L-1 oxalic acid, 0.1 mol L-1 ammonium acetate, and distilled water at pH 5.5. The results revealed that the established limits for Pb and Cd under the ABNT NBR 10004:2004 standard were exceeded in a 1:1 tailing-to-extractor ratio. In ct samples, both elements surpassed the standard limits for all extractors, except for Cd when using water. In ft samples, Pb exceeded the limits with all acids, while Cd exceeded the limits only in the presence of acetic acid and ammonium acetate.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"96 4","pages":"e20240192"},"PeriodicalIF":1.1,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142680360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unveiling the unknown diversity of planktonic green algae (Chlorophyta) in urban ponds in the semiarid region of Northeastern Brazil. 揭开巴西东北部半干旱地区城市池塘中浮游绿藻（叶绿藻）未知多样性的面纱。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2024-11-15 eCollection Date: 2024-01-01 DOI: 10.1590/0001-3765202420231398

Adones J S Pereira, Geraldo José P Ramos, Maria Aparecida S Lima, Kátia Lidiane M Brito, Pedro Manuel Villa, Andrea Tucci, Carlos Wallace N Moura

{"title":"Unveiling the unknown diversity of planktonic green algae (Chlorophyta) in urban ponds in the semiarid region of Northeastern Brazil.","authors":"Adones J S Pereira, Geraldo José P Ramos, Maria Aparecida S Lima, Kátia Lidiane M Brito, Pedro Manuel Villa, Andrea Tucci, Carlos Wallace N Moura","doi":"10.1590/0001-3765202420231398","DOIUrl":"https://doi.org/10.1590/0001-3765202420231398","url":null,"abstract":"This study examined the taxonomic composition and ecological aspects of planktonic green algae (Chlorophyta) in four urban ponds (Parque da Lagoa, Lagoa Grande, Laguneville, and Pindoba) in Feira de Santana, Bahia State, Brazil. We analyzed 96 samples collected bimonthly in 2022 and identified 54 taxa, with the majority (42) classified as uncommon or sporadic. The most common species were Monoraphidium circinale and Lemmermannia komarekii, found in 100% and 95.8% of samples, respectively. Parque da Lagoa had the highest number of taxa (43), followed by Lagoa Grande (40), Laguneville (31), and Pindoba (30). Most taxa were found in water with high levels of oxygenation (5.8-12.3 mg L-1) and conductivity (400-1000 μS cm-1), neutral to slightly alkaline conditions (pH 7-8), and moderate water temperature (26-27 °C). Significant differences in the composition of planktonic green algae and limnological variables were observed among ponds. These studies underscore the importance of implementing actions aimed at the restoration and conservation of urban ponds in Feira de Santana to avoid biodiversity loss and eutrophication while ensuring the provision of critical ecosystem services, such as local climate regulation.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"96 4","pages":"e20231398"},"PeriodicalIF":1.1,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142680552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0