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Registro Completo |
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Biblioteca(s): |
Embrapa Clima Temperado. |
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Data corrente: |
02/03/2022 |
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Data da última atualização: |
02/03/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Título: |
Brazilian Flora 2020: Leveraging the power of a collaborative scientific network. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Taxon, v. 71, n. 1, p. 178-198, Feb. 2022. |
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DOI: |
doi.org/10.1002/tax.12640 |
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Idioma: |
Inglês |
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Notas: |
Autores Embrapa: Bruno Machado Teles Walter, Gustavo Heiden, José Francisco Montenegro Valls, Luciano de Bem Bianchetti, Marcelo Fragomeni Simon, Marta Camargo de Assis, Taciana Barbosa Cavalcanti. |
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Conteúdo: |
The 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. MenosThe 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 Braz... Mostrar Tudo |
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Thesagro: |
Biodiversidade; Taxonomia. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/232067/1/TAXON-2021-Brazilian-Flora-2020-Leveraging-the-power-of-a-collaborative-scientific-network.pdf
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Marc: |
LEADER 03527naa a2200157 a 4500
001 2140476
005 2022-03-02
008 2022 bl uuuu u00u1 u #d
024 7 $adoi.org/10.1002/tax.12640$2DOI
245 $aBrazilian Flora 2020$bLeveraging the power of a collaborative scientific network.$h[electronic resource]
260 $c2022
500 $aAutores Embrapa: Bruno Machado Teles Walter, Gustavo Heiden, José Francisco Montenegro Valls, Luciano de Bem Bianchetti, Marcelo Fragomeni Simon, Marta Camargo de Assis, Taciana Barbosa Cavalcanti.
520 $aThe 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.
650 $aBiodiversidade
650 $aTaxonomia
773 $tTaxon$gv. 71, n. 1, p. 178-198, Feb. 2022.
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Registro original: |
Embrapa Clima Temperado (CPACT) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
07/06/2019 |
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Data da última atualização: |
30/10/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 3 |
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Autoria: |
LIMA, G. G. de; CHEE, B. S.; MORITZ, V. F.; CORTESE, Y. J.; MAGALHAES, W. L. E.; DEVINE, D. M.; NUGENT, M. J. D. |
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Afiliação: |
Gabriel Goetten de Lima, Materials Research Institute, Athlone Institute of Technology; Bor Shin Chee, Materials Research Institute, Athlone Institute of Technology; Vicente Froés Moritz, Materials Research Institute, Athlone Institute of Technology; Yvonne J Cortese, Materials Research Institute, Athlone Institute of Technology; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; Declan M Devine, Materials Research Institute, Athlone Institute of Technology; Michael J D Nugent, Materials Research Institute, Athlone Institute of Technology. |
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Título: |
The production of a novel poly(vinyl alcohol) hydrogel cryogenic spheres for immediate release using a droplet system. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Biomedical Physics & Engineering Express, v. 5, n. 4, 045017, Jul. 2019. 13 p. |
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DOI: |
10.1088/2057-1976/ab2547 |
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Idioma: |
Inglês |
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Conteúdo: |
Although freeze-thaw mechanism for producing crosslinked hydrogels is relatively easy and simple, it lacks sufficient integrity and support leading to modifications on its three-dimensional polymeric network arrangement during water removal?drying. Therefore, a strengthening method for obtaining cryogenic spheres of polyvinyl alcohol hydrogels is purposed by dispensing it as liquid droplets into a low temperature solution followed by a modification on its freeze-thaw cycles to confer a good geometry without aggregation. Various materials were incorporated into this hydrogel structure, including poly(acrylic acid) to impart pH sensitivity; hydroxyapatite to improve biocompatibility; and ciprofloxacin as an antimicrobial agent relevant for the treatment of osteomyelitis. The overall network presented a porous structure with a fibrous-like pattern which varied in size and volume, with presence of Ca and P when hydroxyapatite is incorporated. These materials varied the crystalline melting point of the poly(vinyl alcohol) and a linear pHsensitivity function was obtained by the addition of the materials. These hydrogels were found to release ciprofloxacin within 60 min and were able to dissolve at the same time intervals. Therefore, the hydrogel synthesised in this work can be used as an immediate release drug delivery mechanism for the in situ delivery of active pharmaceutical such as ciprofloxacin for a treatment of osteomyelitis. |
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Palavras-Chave: |
Álcool polivinílico; Immediate releas; Liberação de fármaco por via oral; Oral drug delivery; PH-sensitivity; Produto madeireiro. |
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Thesaurus NAL: |
Polyvinyl alcohol. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02387naa a2200289 a 4500
001 2109732
005 2019-10-30
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1088/2057-1976/ab2547$2DOI
100 1 $aLIMA, G. G. de
245 $aThe production of a novel poly(vinyl alcohol) hydrogel cryogenic spheres for immediate release using a droplet system.$h[electronic resource]
260 $c2019
520 $aAlthough freeze-thaw mechanism for producing crosslinked hydrogels is relatively easy and simple, it lacks sufficient integrity and support leading to modifications on its three-dimensional polymeric network arrangement during water removal?drying. Therefore, a strengthening method for obtaining cryogenic spheres of polyvinyl alcohol hydrogels is purposed by dispensing it as liquid droplets into a low temperature solution followed by a modification on its freeze-thaw cycles to confer a good geometry without aggregation. Various materials were incorporated into this hydrogel structure, including poly(acrylic acid) to impart pH sensitivity; hydroxyapatite to improve biocompatibility; and ciprofloxacin as an antimicrobial agent relevant for the treatment of osteomyelitis. The overall network presented a porous structure with a fibrous-like pattern which varied in size and volume, with presence of Ca and P when hydroxyapatite is incorporated. These materials varied the crystalline melting point of the poly(vinyl alcohol) and a linear pHsensitivity function was obtained by the addition of the materials. These hydrogels were found to release ciprofloxacin within 60 min and were able to dissolve at the same time intervals. Therefore, the hydrogel synthesised in this work can be used as an immediate release drug delivery mechanism for the in situ delivery of active pharmaceutical such as ciprofloxacin for a treatment of osteomyelitis.
650 $aPolyvinyl alcohol
653 $aÁlcool polivinílico
653 $aImmediate releas
653 $aLiberação de fármaco por via oral
653 $aOral drug delivery
653 $aPH-sensitivity
653 $aProduto madeireiro
700 1 $aCHEE, B. S.
700 1 $aMORITZ, V. F.
700 1 $aCORTESE, Y. J.
700 1 $aMAGALHAES, W. L. E.
700 1 $aDEVINE, D. M.
700 1 $aNUGENT, M. J. D.
773 $tBiomedical Physics & Engineering Express$gv. 5, n. 4, 045017, Jul. 2019. 13 p.
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