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Registro Completo |
Biblioteca(s): |
Embrapa Meio Ambiente. |
Data corrente: |
19/04/2021 |
Data da última atualização: |
12/08/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
PARADA-PINILLA, M. P.; FERREIRA, M. A.; RONCALLO, J. C.; SANTOS, S. N.; MELO, I. S. de; ASSEF, A. N. B.; WILKE, D. V.; SILVA, L. F.; GARRIDO, L. M.; ARAUJO, W. L.; PADILLA, G. |
Afiliação: |
MARIA PAULA PARADA-PINILLA, ICB-USP; MARIA ALEJANDRA FERREIRA, ICB-UDP; JUAN CAMILO RONCALLO, ICB-USP; SUIKINAI NOBRE SANTOS; ITAMAR SOARES DE MELO, CNPMA; ALEXIA NATHÁLIA BRÍGIDO ASSEF, UFC; DIEGO VERAS WILKE, UFC; LUIZIANA F SILVA, ICB-USP; LEANDRO MAZA GARRIDO, ICB-USP; WELINGTON LUIUZ ARAÚJO, ICB-USP; GABRIEL PADILLA, ICB-USP. |
Título: |
Biopolymer production by halotolerant bacteria isolated from Caatinga biome. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Brazilian Journal of Microbiology, v. 52, n. 2, p. 547-559, 2021. |
ISSN: |
1678-4405 |
DOI: |
https://doi.org/10.1007/s42770-021-00426-1 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: Saline environments are extreme habitats with a high diversity of microorganisms source of a myriad of biomolecules. These microorganisms are assigned as extremophiles recognized to be producers of new natural compounds, which can be synthesized by helping to survive under harshness and extreme conditions. In Brazil, in the saline and semi-arid region of Areia Branca (Caatinga biome), halotolerant bacteria (able to growth at high NaCl concentrations) were isolated from rhizosphere of native plants Blutaparon portulacoides and Spergularia sp. and their biopolymer production was studied. A total of 25 bacterial isolates were identified at genus level based on 16S rRNA gene sequence analysis. Isolates were mainly Gram-positive bacteria from Bacillaceae, Staphylococcaceae, Microbacteriaceae, and Bacillales XII incertae sedis families, affiliates to Bacillus, Staphylococcus, Curtobacterium, and Exiguobacterium genera, respectively. One of the Gram-negative isolates was identified as member of the Pseudomonadaceae family, genus Pseudomonas. All the identified strains were halotolerant bacteria with optimum growth at 0.6-2.0 M salt concentrations. Assays for biopolymer production showed that the halotolerant strains are a rich source of compounds as polyhydroxyalkanoates (PHA), biodegradable biopolymer, such as poly(3-hydroxybutyrate) (PHB) produced from low-cost substrates, and exopolysaccharides (EPS), such as hyaluronic acid (HA), metabolite of great interest to the cosmetic and pharmaceutical industry. Also, eight bacterial EPS extracts showed immunostimulatory activity, promising results that can be used in biomedical applications. Overall, our findings demonstrate that these biomolecules can be produced in culture medium with 0.6-2.0 M NaCl concentrations, relevant feature to avoid costly production processes. This is the first report of biopolymer-producing bacteria from a saline region of Caatinga biome that showed important biological activities. MenosAbstract: Saline environments are extreme habitats with a high diversity of microorganisms source of a myriad of biomolecules. These microorganisms are assigned as extremophiles recognized to be producers of new natural compounds, which can be synthesized by helping to survive under harshness and extreme conditions. In Brazil, in the saline and semi-arid region of Areia Branca (Caatinga biome), halotolerant bacteria (able to growth at high NaCl concentrations) were isolated from rhizosphere of native plants Blutaparon portulacoides and Spergularia sp. and their biopolymer production was studied. A total of 25 bacterial isolates were identified at genus level based on 16S rRNA gene sequence analysis. Isolates were mainly Gram-positive bacteria from Bacillaceae, Staphylococcaceae, Microbacteriaceae, and Bacillales XII incertae sedis families, affiliates to Bacillus, Staphylococcus, Curtobacterium, and Exiguobacterium genera, respectively. One of the Gram-negative isolates was identified as member of the Pseudomonadaceae family, genus Pseudomonas. All the identified strains were halotolerant bacteria with optimum growth at 0.6-2.0 M salt concentrations. Assays for biopolymer production showed that the halotolerant strains are a rich source of compounds as polyhydroxyalkanoates (PHA), biodegradable biopolymer, such as poly(3-hydroxybutyrate) (PHB) produced from low-cost substrates, and exopolysaccharides (EPS), such as hyaluronic acid (HA), metabolite of great interest to the co... Mostrar Tudo |
Palavras-Chave: |
Caatinga biome; Halotolerant microorganisms; Immunostimulatory activity. |
Thesagro: |
Bactéria; Caatinga. |
Thesaurus Nal: |
Biopolymers; Exopolysaccharides; Hyaluronic acid; Immunostimulation (physiological); Polyhydroxyalkanoates. |
Categoria do assunto: |
S Ciências Biológicas |
Marc: |
LEADER 03134naa a2200385 a 4500 001 2131360 005 2021-08-12 008 2021 bl uuuu u00u1 u #d 022 $a1678-4405 024 7 $ahttps://doi.org/10.1007/s42770-021-00426-1$2DOI 100 1 $aPARADA-PINILLA, M. P. 245 $aBiopolymer production by halotolerant bacteria isolated from Caatinga biome.$h[electronic resource] 260 $c2021 520 $aAbstract: Saline environments are extreme habitats with a high diversity of microorganisms source of a myriad of biomolecules. These microorganisms are assigned as extremophiles recognized to be producers of new natural compounds, which can be synthesized by helping to survive under harshness and extreme conditions. In Brazil, in the saline and semi-arid region of Areia Branca (Caatinga biome), halotolerant bacteria (able to growth at high NaCl concentrations) were isolated from rhizosphere of native plants Blutaparon portulacoides and Spergularia sp. and their biopolymer production was studied. A total of 25 bacterial isolates were identified at genus level based on 16S rRNA gene sequence analysis. Isolates were mainly Gram-positive bacteria from Bacillaceae, Staphylococcaceae, Microbacteriaceae, and Bacillales XII incertae sedis families, affiliates to Bacillus, Staphylococcus, Curtobacterium, and Exiguobacterium genera, respectively. One of the Gram-negative isolates was identified as member of the Pseudomonadaceae family, genus Pseudomonas. All the identified strains were halotolerant bacteria with optimum growth at 0.6-2.0 M salt concentrations. Assays for biopolymer production showed that the halotolerant strains are a rich source of compounds as polyhydroxyalkanoates (PHA), biodegradable biopolymer, such as poly(3-hydroxybutyrate) (PHB) produced from low-cost substrates, and exopolysaccharides (EPS), such as hyaluronic acid (HA), metabolite of great interest to the cosmetic and pharmaceutical industry. Also, eight bacterial EPS extracts showed immunostimulatory activity, promising results that can be used in biomedical applications. Overall, our findings demonstrate that these biomolecules can be produced in culture medium with 0.6-2.0 M NaCl concentrations, relevant feature to avoid costly production processes. This is the first report of biopolymer-producing bacteria from a saline region of Caatinga biome that showed important biological activities. 650 $aBiopolymers 650 $aExopolysaccharides 650 $aHyaluronic acid 650 $aImmunostimulation (physiological) 650 $aPolyhydroxyalkanoates 650 $aBactéria 650 $aCaatinga 653 $aCaatinga biome 653 $aHalotolerant microorganisms 653 $aImmunostimulatory activity 700 1 $aFERREIRA, M. A. 700 1 $aRONCALLO, J. C. 700 1 $aSANTOS, S. N. 700 1 $aMELO, I. S. de 700 1 $aASSEF, A. N. B. 700 1 $aWILKE, D. V. 700 1 $aSILVA, L. F. 700 1 $aGARRIDO, L. M. 700 1 $aARAUJO, W. L. 700 1 $aPADILLA, G. 773 $tBrazilian Journal of Microbiology$gv. 52, n. 2, p. 547-559, 2021.
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Embrapa Meio Ambiente (CNPMA) |
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Registro Completo
Biblioteca(s): |
Embrapa Algodão. |
Data corrente: |
27/12/2007 |
Data da última atualização: |
28/12/2007 |
Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
Circulação/Nível: |
-- - -- |
Autoria: |
BEZERRA, J. R. C.; AMORIM NETO, M. da S.; LUZ, M. J. da S.; BARRETO, A. N.; SILVA, L. C. |
Afiliação: |
Embrapa Algodão. |
Título: |
Irrigação do algodoeiro herbáceo |
Ano de publicação: |
1999 |
Fonte/Imprenta: |
In: BELTRÃO, N. E. de M. O Agronegócio do algodão no Brasil. Campina Grande: Embrapa Algodão; Brasília: Embrapa Comunicação para Transferência de Tecnologia, 1999. |
Volume: |
v. 2 |
Páginas: |
p. 619-682 |
ISBN: |
85-7383-061-1 |
Idioma: |
Português |
Categoria do assunto: |
-- |
Marc: |
LEADER 00631naa a2200193 a 4500 001 1274654 005 2007-12-28 008 1999 bl uuuu u00u1 u #d 020 $a85-7383-061-1 100 1 $aBEZERRA, J. R. C. 245 $aIrrigação do algodoeiro herbáceo 260 $c1999 300 $ap. 619-682 v. 2 490 $vv. 2 700 1 $aAMORIM NETO, M. da S. 700 1 $aLUZ, M. J. da S. 700 1 $aBARRETO, A. N. 700 1 $aSILVA, L. C. 773 $tIn: BELTRÃO, N. E. de M. O Agronegócio do algodão no Brasil. Campina Grande: Embrapa Algodão; Brasília: Embrapa Comunicação para Transferência de Tecnologia, 1999.
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