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Registro Completo |
Biblioteca(s): |
Embrapa Agrossilvipastoril; Embrapa Florestas; Embrapa Milho e Sorgo. |
Data corrente: |
02/06/2020 |
Data da última atualização: |
18/11/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
BALDONI, A. B.; BOTIN, A. A.; TARDIN, F. D.; MARQUES, J. A. de B.; OLIVEIRA, F. L. de; SILVA, A. J. R.; SILVA, E. S. da; AWABDI, C. P.; PALUDZYSZYN FILHO, E.; NEVESE, L. G.; PANTALEÃO, A. de A.; TEODORO, L. P. R.; TEODORO, P. E. |
Afiliação: |
AISY BOTEGA BALDONI TARDIN, CPAMT; Andreia Alves Botin, Univesidade Federal de Mato Grosso; FLAVIO DESSAUNE TARDIN, CNPMS; Jairo Alex de Barros Marques, Universidade Federal de Mato Grosso; Fabio Linsbinski de Oliveira, Universidade Federal de Mato Grosso; Adailthon Jourdan Rodrigues Silva, Universidade Federal de Mato Grosso; Elton Soares da Silva, Universidade Federal de Mato Grosso; Caio Paulo Awabdi, Universidade Federal de Mato Grosso; ESTEFANO PALUDZYSZYN FILHO, CNPF; Leonarda Grillo Nevese, Universidade do Estado de Mato Grosso; Ariane de Andrea Pantaleão, Universidade Federal de Mato Grosso do Sul; Larissa Pereira Ribeiro Teodoro, Universidade Federal de Mato Grosso do Sul; Paulo Eduardo Teodoro, Universidade Federal de Mato Grosso do Sul. |
Título: |
Early selection strategies in Schizolobium parahyba var. amazonicum (huber ex ducke) barneby. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Industrial Crops and Products, v. 152, article 112538, 2020. |
ISSN: |
0926-6690 |
DOI: |
https://doi.org/10.1016/j.indcrop.2020.112538 |
Idioma: |
Inglês |
Conteúdo: |
Paricá (Schizolobium parahyba var. amazonicum) is a tropical species native to the Amazon region and is continually growing for wood exploitation potential, especially in the laminated wood industry. In Brazil, there are still no breeding programs for this species. Therefore, it is necessary to assess its genetic diversity and use appropriate selection strategies to develop genotypes that serve the consumer market. This research hypothesized that half-sib families of paricá have genetic variability for characteristics favorable to wood production. Thus, the aim was to evaluate different selection strategies in paricá genotypes for growth traits. Half-sib progenies from 58 paricá matrices were planted in the experimental area of Embrapa Agrossilvipastoril in the municipality of Sinop-MT. The seeds used for obtaining the seedlings were collected in the states of Mato Grosso, Rondônia, Acre, Tocantins, and Pará. The traits evaluated were: diameter at breast height and plant height. Variance components and heritability were estimated, and subsequently, the genetic gains with the selection were predicted by four selection strategies: combined selection, among and within-families selection, mass selection, and stratified mass selection. The results obtained by analysis of variance showed the existence of genetic variability among families for the traits evaluated, which revealed the possibility of obtaining genetic gains and thereby success with the selection. All selection strategies showed to be suitable for obtaining genetic gains with a selection of the best paricá progenies aimed at wood production. However, the combined selection provided the highest genetic gains. The results reported in this research made it possible to direct the strategies of the first genetic breeding program for paricá in Brazil. MenosParicá (Schizolobium parahyba var. amazonicum) is a tropical species native to the Amazon region and is continually growing for wood exploitation potential, especially in the laminated wood industry. In Brazil, there are still no breeding programs for this species. Therefore, it is necessary to assess its genetic diversity and use appropriate selection strategies to develop genotypes that serve the consumer market. This research hypothesized that half-sib families of paricá have genetic variability for characteristics favorable to wood production. Thus, the aim was to evaluate different selection strategies in paricá genotypes for growth traits. Half-sib progenies from 58 paricá matrices were planted in the experimental area of Embrapa Agrossilvipastoril in the municipality of Sinop-MT. The seeds used for obtaining the seedlings were collected in the states of Mato Grosso, Rondônia, Acre, Tocantins, and Pará. The traits evaluated were: diameter at breast height and plant height. Variance components and heritability were estimated, and subsequently, the genetic gains with the selection were predicted by four selection strategies: combined selection, among and within-families selection, mass selection, and stratified mass selection. The results obtained by analysis of variance showed the existence of genetic variability among families for the traits evaluated, which revealed the possibility of obtaining genetic gains and thereby success with the selection. All selection strate... Mostrar Tudo |
Palavras-Chave: |
Seleção combinada. |
Thesagro: |
Espécie Nativa; Melhoramento; Paricá; Seleção. |
Thesaurus Nal: |
Amazonia. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 02902naa a2200361 a 4500 001 2123761 005 2020-11-18 008 2020 bl uuuu u00u1 u #d 022 $a0926-6690 024 7 $ahttps://doi.org/10.1016/j.indcrop.2020.112538$2DOI 100 1 $aBALDONI, A. B. 245 $aEarly selection strategies in Schizolobium parahyba var. amazonicum (huber ex ducke) barneby.$h[electronic resource] 260 $c2020 520 $aParicá (Schizolobium parahyba var. amazonicum) is a tropical species native to the Amazon region and is continually growing for wood exploitation potential, especially in the laminated wood industry. In Brazil, there are still no breeding programs for this species. Therefore, it is necessary to assess its genetic diversity and use appropriate selection strategies to develop genotypes that serve the consumer market. This research hypothesized that half-sib families of paricá have genetic variability for characteristics favorable to wood production. Thus, the aim was to evaluate different selection strategies in paricá genotypes for growth traits. Half-sib progenies from 58 paricá matrices were planted in the experimental area of Embrapa Agrossilvipastoril in the municipality of Sinop-MT. The seeds used for obtaining the seedlings were collected in the states of Mato Grosso, Rondônia, Acre, Tocantins, and Pará. The traits evaluated were: diameter at breast height and plant height. Variance components and heritability were estimated, and subsequently, the genetic gains with the selection were predicted by four selection strategies: combined selection, among and within-families selection, mass selection, and stratified mass selection. The results obtained by analysis of variance showed the existence of genetic variability among families for the traits evaluated, which revealed the possibility of obtaining genetic gains and thereby success with the selection. All selection strategies showed to be suitable for obtaining genetic gains with a selection of the best paricá progenies aimed at wood production. However, the combined selection provided the highest genetic gains. The results reported in this research made it possible to direct the strategies of the first genetic breeding program for paricá in Brazil. 650 $aAmazonia 650 $aEspécie Nativa 650 $aMelhoramento 650 $aParicá 650 $aSeleção 653 $aSeleção combinada 700 1 $aBOTIN, A. A. 700 1 $aTARDIN, F. D. 700 1 $aMARQUES, J. A. de B. 700 1 $aOLIVEIRA, F. L. de 700 1 $aSILVA, A. J. R. 700 1 $aSILVA, E. S. da 700 1 $aAWABDI, C. P. 700 1 $aPALUDZYSZYN FILHO, E. 700 1 $aNEVESE, L. G. 700 1 $aPANTALEÃO, A. de A. 700 1 $aTEODORO, L. P. R. 700 1 $aTEODORO, P. E. 773 $tIndustrial Crops and Products$gv. 152, article 112538, 2020.
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Embrapa Agrossilvipastoril (CPAMT) |
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Registro Completo
Biblioteca(s): |
Embrapa Instrumentação. |
Data corrente: |
04/05/2021 |
Data da última atualização: |
10/06/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
CHAGAS, P. A. M.; SCHNEIDER, R.; SANTOS, D. M. dos; OTUKA, A. J. G.; MENDONÇA, C. R.; CORREA, D. S. |
Afiliação: |
DANIEL SOUZA CORREA, CNPDIA. |
Título: |
Bilayered electrospun membranes composed of poly(lactic-acid)/natural rubber: A strategy against curcumin photodegradation for wound dressing application. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Reactive and Functional Polymers, v. 163, a. 104889, 2021. |
Páginas: |
1 - 11 |
ISSN: |
1381-5148 |
DOI: |
https://doi.org/10.1016/j.reactfunctpolym.2021.104889 |
Idioma: |
Inglês |
Conteúdo: |
Curcumin is a natural phenolic compound renowned for its beneficial anti-carcinogenic, anti-oxidant, antibacterial and anti-inflammatory properties. More recently, this active compound has also demonstrated wound healing capability and antibacterial properties, which are essential prerequisites to treat skin injuries. However, the practical application of curcumin in wound-healing dressing is limited by its susceptibility to photodegradation when exposed to artificial or natural sunlight. To maintain the pharmacological and antibacterial properties of curcumin and prevent its photodegradation, we have developed a bilayered asymmetric membrane for wound healing application composed of two layers of electrospun fibers. The bottom layer is composed of a biodegradable blend of poly(lactic acid)(PLA)/natural rubber(NR) microfibers containing curcumin in the bulk. In contrast, the top layer is composed solely of PLA nanofibers to simultaneously protect curcumin against photodegradation and avoid bacterial penetration. Scanning electron microscopy, Fourier transform infrared spectroscopy, UV–Vis spectroscopy, thermal analyses, contact angle measurements and antibacterial assay were employed to investigate the properties of the membranes. Our results demonstrated the top layer of PLA was crucial to prevent the photodegradation of curcumin contained in the PLA/NR microfibers bottom layer and also avoided the penetration of bacteria for 10 days. Additionally, the PLA/NR microfibers showed strong antibacterial activity against Staphylococcus aureus. Our results demonstrated the potential of bilayered nano/microfibrous membranes to be applied in the design of wound dressings containing active compounds susceptible to photodegradation MenosCurcumin is a natural phenolic compound renowned for its beneficial anti-carcinogenic, anti-oxidant, antibacterial and anti-inflammatory properties. More recently, this active compound has also demonstrated wound healing capability and antibacterial properties, which are essential prerequisites to treat skin injuries. However, the practical application of curcumin in wound-healing dressing is limited by its susceptibility to photodegradation when exposed to artificial or natural sunlight. To maintain the pharmacological and antibacterial properties of curcumin and prevent its photodegradation, we have developed a bilayered asymmetric membrane for wound healing application composed of two layers of electrospun fibers. The bottom layer is composed of a biodegradable blend of poly(lactic acid)(PLA)/natural rubber(NR) microfibers containing curcumin in the bulk. In contrast, the top layer is composed solely of PLA nanofibers to simultaneously protect curcumin against photodegradation and avoid bacterial penetration. Scanning electron microscopy, Fourier transform infrared spectroscopy, UV–Vis spectroscopy, thermal analyses, contact angle measurements and antibacterial assay were employed to investigate the properties of the membranes. Our results demonstrated the top layer of PLA was crucial to prevent the photodegradation of curcumin contained in the PLA/NR microfibers bottom layer and also avoided the penetration of bacteria for 10 days. Additionally, the PLA/NR microfibers sh... Mostrar Tudo |
Palavras-Chave: |
Bilayered membrane; Electrospinning; Polymer nanofibers; Wound dressing. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02631naa a2200265 a 4500 001 2131659 005 2022-06-10 008 2021 bl uuuu u00u1 u #d 022 $a1381-5148 024 7 $ahttps://doi.org/10.1016/j.reactfunctpolym.2021.104889$2DOI 100 1 $aCHAGAS, P. A. M. 245 $aBilayered electrospun membranes composed of poly(lactic-acid)/natural rubber$bA strategy against curcumin photodegradation for wound dressing application.$h[electronic resource] 260 $c2021 300 $a1 - 11 520 $aCurcumin is a natural phenolic compound renowned for its beneficial anti-carcinogenic, anti-oxidant, antibacterial and anti-inflammatory properties. More recently, this active compound has also demonstrated wound healing capability and antibacterial properties, which are essential prerequisites to treat skin injuries. However, the practical application of curcumin in wound-healing dressing is limited by its susceptibility to photodegradation when exposed to artificial or natural sunlight. To maintain the pharmacological and antibacterial properties of curcumin and prevent its photodegradation, we have developed a bilayered asymmetric membrane for wound healing application composed of two layers of electrospun fibers. The bottom layer is composed of a biodegradable blend of poly(lactic acid)(PLA)/natural rubber(NR) microfibers containing curcumin in the bulk. In contrast, the top layer is composed solely of PLA nanofibers to simultaneously protect curcumin against photodegradation and avoid bacterial penetration. Scanning electron microscopy, Fourier transform infrared spectroscopy, UV–Vis spectroscopy, thermal analyses, contact angle measurements and antibacterial assay were employed to investigate the properties of the membranes. Our results demonstrated the top layer of PLA was crucial to prevent the photodegradation of curcumin contained in the PLA/NR microfibers bottom layer and also avoided the penetration of bacteria for 10 days. Additionally, the PLA/NR microfibers showed strong antibacterial activity against Staphylococcus aureus. Our results demonstrated the potential of bilayered nano/microfibrous membranes to be applied in the design of wound dressings containing active compounds susceptible to photodegradation 653 $aBilayered membrane 653 $aElectrospinning 653 $aPolymer nanofibers 653 $aWound dressing 700 1 $aSCHNEIDER, R. 700 1 $aSANTOS, D. M. dos 700 1 $aOTUKA, A. J. G. 700 1 $aMENDONÇA, C. R. 700 1 $aCORREA, D. S. 773 $tReactive and Functional Polymers$gv. 163, a. 104889, 2021.
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