Levantamento florístico e estudo palinológico de áreas sob influência do rompimento da barragem de Fundão em Mariana, MG, Brasil, visando o desenvolvimento da Meliponicultura como estratégia para a recuperação ambiental

This study aimed to carry out a floristic survey in areas under influence of the rupture of the Fundão ore tailings dam, in the municipality of Mariana, Minas Gerais State, with the objective of pointing out potentially important species for meliponiculture production chain and contributing to the reintroduction of native plant species in the areas impacted by the mud. The survey was conducted in six sites, being three affected and three not affected by dam rupture. The collection of botanical material was carried out during ten months, between 2017 and 2018. The species were identified by a specialist and additional information regarding their life-form, phenology, popular name, floral resource availability, origin and endemism were obtained. The data obtained were systematized in a table, including the accession number of the Department of Botany Herbarium (Herbarium BHCB) from the Federal University of Minas Gerais, where the vourchers were deposited. The survey was supplemented with a Phototeca containing photographs of acetolyzed pollen grains that were organized in three Brazilian Palynothecas. As a result, 153 plant species were collected, divided into 32 botanical families. The most representative families in both sites studied were Asteraceae and Fabaceae. It is recommended to replant the affected areas with several species of various families, considering that they are of great importance for native bees and for economic use and income generation through meliponiculture.Este trabalho se propôs a realizar um levantamento florístico em áreas sob influência do rompimento da barragem de rejeitos de minério de Fundão em Mariana, Estado de Minas Gerais, com o objetivo de apontar espécies potencialmente importantes na cadeia produtiva da Meliponicultura e contribuir com a reintrodução de espécies vegetais nativas nas áreas impactadas pela lama. O levantamento foi realizado em seis locais, sendo três deles atingidos pelo rompimento da barragem e três deles não atingidos. As coletas dos materiais botânicos foram realizadas no período de 10 meses entre 2017 e 2018. As espécies foram identificadas por especialista e pesquisadas na literatura quanto a sua forma de vida, fenologia, nome popular, disponibilidade de recurso floral, origem e endemismo. As informações obtidas foram sistematizadas em uma tabela, constando o número do Herbário do Departamento de Botânica da Universidade Federal de Minas Gerais (Herbário BHCB) onde as exsicatas das espécies estão tombadas. Complementou-se com uma fototeca dos grãos de pólen acetolisados que foram organizados em três Palinotecas nacionais. Foram amostradas 153 espécies vegetais, pertencentes a 32 famílias, sendo as mais representativas Asteraceae e Fabaceae, em ambos os locais estudados. Recomenda-se o replantio nas áreas afetadas de diversas espécies das várias famílias, pois são de suma importância para as abelhas nativas e para o uso econômico e geração de renda através da Meliponicultura

Principais riscos do uso de omeprazol ao longo prazo

Introdução: O Omeprazol é um medicamento principalmente empregado no tratamento de condições gastrointestinais, pertencente à classe de inibidores de bomba de prótons (IBP). Atualmente, existem alguns representantes da classe, entre eles: omeprazol, lansoprazol, pantoprazol, rabeprazol, esomeprazol, dexlansoprazol (que ainda não comercializado no Brasil) e o tenatoprazol. Metodologia: Trata-se de uma revisão de literatura, cujas bases foram retiradas das plataformas de dados PubMed. O período da pesquisa foi de julho de 2023, atendendo aos critérios de inclusão que foram artigos dos anos 2000 a 2023, na língua portuguesa e inglesa, textos online e em textos completos. Como estratégias para melhor avaliação dos textos, foram utilizados os seguintes descritores em saúde (DeCS): "inibidor de bomba de protons", "fatores de risco" e "Efeitos Adversos de Longa Duração". Discussão: O medicamento Omeprazol corresponde a classe de inibidores da bomba de prótons (IBPs) e sua principal utilização é para o tratamento de doenças de origem gastrointestinal. É um medicamento responsável por suprimir a ação/secreção de ácido gástrico, sendo útil para patologias como úlcera estomacal e duodenal prevenindo a evolução com hemorragia digestiva alta, refluxo gastroesofágico; esofagite resultante do refluxo, erradicação de infecção pela bactéria Helicobacter pylori e no câncer de estômago. Em virtude da existência de muitas medicações que possuem como local de absorção no estômago, ele também pode ser utilizado como medicação adjuvante. (1,2,3). Os IBPs produzem uma supressão ácida significativamente e são capazes de manter o pH intragástrico. (1,2) Considerações finais: Com base no estudo, é essencial ser cauteloso ao prescrever Omeprazol por um longo período, observando assim a necessidade de prescrição e acompanhamento. Apesar de ser eficaz para aliviar problemas gastrointestinais, há preocupações sobre possíveis efeitos na absorção de nutrientes, aumento do risco de fraturas e maior suscetibilidade a infecções gastrointestinais. Portanto, é necessário avaliar cada caso individualmente

A list of land plants of Parque Nacional do Caparaó, Brazil, highlights the presence of sampling gaps within this protected area

Brazilian protected areas are essential for plant conservation in the Atlantic Forest domain, one of the 36 global biodiversity hotspots. A major challenge for improving conservation actions is to know the plant richness, protected by these areas. Online databases offer an accessible way to build plant species lists and to provide relevant information about biodiversity. A list of land plants of “Parque Nacional do Caparaó” (PNC) was previously built using online databases and published on the website "Catálogo de Plantas das Unidades de Conservação do Brasil." Here, we provide and discuss additional information about plant species richness, endemism and conservation in the PNC that could not be included in the List. We documented 1,791 species of land plants as occurring in PNC, of which 63 are cited as threatened (CR, EN or VU) by the Brazilian National Red List, seven as data deficient (DD) and five as priorities for conservation. Fifity-one species were possible new ocurrences for ES and MG states

A Florula Lagoensis de Warming revisitada

Exportado OPUSMade available in DSpace on 2019-08-14T03:23:43Z (GMT). No. of bitstreams: 1 disserta__o_nayara_couto_moreira.pdf: 5470993 bytes, checksum: bf3dfdd094b4579091ed9fa9654ecd60 (MD5) Previous issue date: 30Há cerca de 150 anos, o dinamarquês Eugen Warming (1841-1924) veio ao Brasil, onde começou a sua carreira como botânico e foi secretário do famoso paleontólogo, também dinamarquês, Peter Wilhelm Lund (1801-1880), em Lagoa Santa, no estado de Minas Gerais. Durante três anos (1863-1866), Warming coletou um extenso volume de material botânico e informações que resultaram em uma das primeiras obras da ecologia vegetal, Lagoa Santa e onde consta a primeira lista florística do Cerrado, a Florula Lagoensis. O retorno a esse trabalho é importante para resgatar e divulgar o rico conhecimento existente sobre a biodiversidade brasileira. No primeiro capítulo foi recapitulado o contexto histórico do século XIX que influenciou a carreira desse pesquisador, apresenta-se uma breve biografia, informações sobre a região de Lagoa Santa e sua importância para a ciência. No segundo capítulo, revisitamos a Florula Lagoensis, atualizando taxonômica e nomenclaturalmente todas as espécies de Angiospermas. Apresentamos, também, uma análise histórica, ao reunir os registros de coleta dos herbários nos últimos 150 anos para Lagoa Santa e apontamos os espécimes-tipo coletados por Warming nesse local. Somente 539 (23,7%) das 2.270 espécies coletadas por Warming foram recoletadas pelos botânicos, durante todos esses anos. Novas adições à lista representaram apenas 228 espécies (9,1%). Os espécimes-tipo nomenclaturais foram 373 (14,1). Essa pequena área de cerca de 170 Km² revelou uma grande riqueza de espécies quando comparada com outras regiões inventariadas em Minas Gerais, mesmo com áreas maiores. No terceiro capítulo, é descrita uma nova espécie de Solanum L. (Solanaceae) pertencente ao clado Geminata para a Flora do Brasil, Solanum lagoense Stehmann, sp.nov. A espécie habita o sub-bosque da Floresta Estacional associada a afloramentos calcários junto à gruta da Lapinha, em Lagoa Santa, uma área inventariada em detalhe por Warming. São apresentadas a descrição da espécie, comentários taxonômicos, bem como, a avaliação que sugere o status de Criticamente Ameaçada à espécie. Por fim, destaca-se, nessa dissertação, a completude do trabalho realizado por Warming e a relevância das lições deixadas por ele: 1) a importância de coletar intensivamente, 2) a atenção focada aos pequenos detalhes no campo, 3) e trabalhar em colaboração com vários especialistas. Por todos esses motivos é justo reconhecer Warming como pai dos estudos florísticos no Brasil.The Danish botanic Eugen Warming (1841-1924) started his career in Lagoa Santa, Minas Gerais state, Brazil, between 1863 and 1866, while working as secretary of the Danish palaeontologist Peter Wilhelm Lund (1801-1880). During this period, Warming collected a great amount of plants and informations that came up to one of the first text in Plant Ecology, Lagoa Santa and where can be found the first floristic list of the Brazilian savanna (Cerrado), the Florula Lagoensis. Going back to this work is very important to refresh and to broadcast the knowledge about the huge Brazilian biodiversity. In the first chapter, we revise the cultural and philosophical scene of the XIX century that acted upon this naturalist career, presents a quickly bibliography; informations about Lagoa Santaand its importance to science. In the second chapter, we revisit the Florula Lagoensis, updating nomenclatural and taxonomically all flowering plants, and analyze the contribution of new collections to this place. We also recovered the type specimens collected by Warming in Lagoa Santa. Only 539 (23,7%) from 2,270 of Warmings samples in Lagoa Santa have been collected by botanists after almost 150 years and new additions to the list were only 228 (9,1%). Nomenclatural types collected by Warming were 373 (14,1%). This small area, of about 170 Km², revealed considerable superior richness when compared to other sites of Minas Gerais with bigger areas. In the third chapter, a new species of Solanum (Solanaceae) from the Geminata clade is described to the Brazilian flora, Solanum lagoense Stehmann, sp. nov. The species is only known from Lapinha, a rocky massif located in the LagoaSanta karst. We present a description, taxonomic comments and assessment for conservation status that points out the species as critically endangered.We stress the completeness of Warmings work and highlight the importance of following Warmings footsteps and lessons: 1) to collect intensively; 2) to observe details in the field; 3) andto work in a collaborative way. For these reasons, its fair to recognize Eugene Warming as the father of floristic studies in Brazil

Eugen Warming’s Florula Lagoensis revisited: old lessons to new challenges

Background and aims – We revisited Florula Lagoensis, the first floristic list of the Cerrado, published in 1892 by Eugen Warming. All flowering plants were nomenclaturally and taxonomically updated and associated with type material collected by him. We also analysed the contribution of new collections made in Lagoa Santa to assess how many species were recollected after his work. Methods – We have used the list of phanerogams in Warming’s 1908 translation as primary data source and we performed a search on Brazilian virtual herbaria to retrieve all material collected at the locality of Lagoa Santa and surroundings. Key results – Out of 2270 species collected by Warming, 560 (24.7%) have been recollected after 150 years, and only 242 species (9.6%) were new additions to the list. A total of 381 (14.4%) specific or infra-specific names from Florula Lagoensis have type specimens collected by Warming. Conclusions – It is fair to recognize Eugen Warming as one of the pioneers of floristic studies in Brazil. We stress the completeness of his work and highlight the importance of following Warming’s footsteps, collecting intensively, exploring different environments, and working in a collaborative way

Eugen Warming’s Florula Lagoensis revisited: old lessons to new challenges

Background and aims – We revisited Florula Lagoensis, the first floristic list of the Cerrado, published in 1892 by Eugen Warming. All flowering plants were nomenclaturally and taxonomically updated and associated with type material collected by him. We also analysed the contribution of new collections made in Lagoa Santa to assess how many species were recollected after his work. Methods – We have used the list of phanerogams in Warming’s 1908 translation as primary data source and we performed a search on Brazilian virtual herbaria to retrieve all material collected at the locality of Lagoa Santa and surroundings. Key results – Out of 2270 species collected by Warming, 560 (24.7%) have been recollected after 150 years, and only 242 species (9.6%) were new additions to the list. A total of 381 (14.4%) specific or infra-specific names from Florula Lagoensis have type specimens collected by Warming. Conclusions – It is fair to recognize Eugen Warming as one of the pioneers of floristic studies in Brazil. We stress the completeness of his work and highlight the importance of following Warming’s footsteps, collecting intensively, exploring different environments, and working in a collaborative way

Brazilian Flora 2020: Leveraging the power of a collaborative scientific network

International audienceThe shortage of reliable primary taxonomic data limits the description of biological taxa and the understanding of biodiversity patterns and processes, complicating biogeographical, ecological, and evolutionary studies. This deficit creates a significant taxonomic impediment to biodiversity research and conservation planning. The taxonomic impediment and the biodiversity crisis are widely recognized, highlighting the urgent need for reliable taxonomic data. Over the past decade, numerous countries worldwide have devoted considerable effort to Target 1 of the Global Strategy for Plant Conservation (GSPC), which called for the preparation of a working list of all known plant species by 2010 and an online world Flora by 2020. Brazil is a megadiverse country, home to more of the world's known plant species than any other country. Despite that, Flora Brasiliensis, concluded in 1906, was the last comprehensive treatment of the Brazilian flora. The lack of accurate estimates of the number of species of algae, fungi, and plants occurring in Brazil contributes to the prevailing taxonomic impediment and delays progress towards the GSPC targets. Over the past 12 years, a legion of taxonomists motivated to meet Target 1 of the GSPC, worked together to gather and integrate knowledge on the algal, plant, and fungal diversity of Brazil. Overall, a team of about 980 taxonomists joined efforts in a highly collaborative project that used cybertaxonomy to prepare an updated Flora of Brazil, showing the power of scientific collaboration to reach ambitious goals. This paper presents an overview of the Brazilian Flora 2020 and provides taxonomic and spatial updates on the algae, fungi, and plants found in one of the world's most biodiverse countries. We further identify collection gaps and summarize future goals that extend beyond 2020. Our results show that Brazil is home to 46,975 native species of algae, fungi, and plants, of which 19,669 are endemic to the country. The data compiled to date suggests that the Atlantic Rainforest might be the most diverse Brazilian domain for all plant groups except gymnosperms, which are most diverse in the Amazon. However, scientific knowledge of Brazilian diversity is still unequally distributed, with the Atlantic Rainforest and the Cerrado being the most intensively sampled and studied biomes in the country. In times of “scientific reductionism”, with botanical and mycological sciences suffering pervasive depreciation in recent decades, the first online Flora of Brazil 2020 significantly enhanced the quality and quantity of taxonomic data available for algae, fungi, and plants from Brazil. This project also made all the information freely available online, providing a firm foundation for future research and for the management, conservation, and sustainable use of the Brazilian funga and flora