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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
18/12/2023 |
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Data da última atualização: |
18/12/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LEONARDO-SILVA, L.; SILVA, L. B. da; FERREIRA, E. P. de B.; REIS, K. F. D. N. S. dos; NAVES, P. L. F.; MARTIN-DIDONET, C. C. G. |
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Afiliação: |
LUCAS LEONARDO-SILVA, UEG; LARISSA B. DA SILVA, UEG; ENDERSON PETRONIO DE BRITO FERREIRA, CNPAF; KARINA F. D. N. S. DOS REIS, UEG; PLINIO L. F. NAVES, UEG; CLAUDIA C. G. MARTIN-DIDONET, UEG. |
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Título: |
Assessment of morphophysiological and genotypic diversity of endophytic bacteria isolated from rice (Oryza sativa L.) plants. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Revista Caatinga, v. 36, n. 4, p. 775-784, out./dez. 2023. |
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ISSN: |
1983-2125 |
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Idioma: |
Português |
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Conteúdo: |
Rice production in Brazil incurs high costs due to the significant use of agrochemicals. Some plant growth-promoting rhizobacteria (PGPR) can be used as alternative to fertilizers and phytosanitary products. Thus, the objective of this study was to characterize endophytic bacteria isolated from roots of rice plants. The isolates were characterized based on colony morphology, antibiotic resistance, carbon sources utilization, enzyme activity (catalase, amylase, protease, cellulase, and lipase), inorganic phosphate solubilization, and the 16S-23S rDNA intergenic region. Morphologically, 68% of the isolates presented a rapid growth rate, 46% presented abundant mucus production, and 77% formed viscous colonies. All isolates were resistant to nalidixic acid and 16% presented resistance to streptomycin. The majority (90%) used monosaccharides and disaccharides in carbon source assays. Most of the isolates (95%) were positive for catalase and 63.6% were positive for amylase, protease, lipase, and cellulase activities. Additionally, 59% of them were able to solubilize phosphate. The mean enzymatic index for amylase, cellulase, and protease was 2.8, 3.5, and 1.7 respectively. The similarity analysis revealed high diversity among the isolates, with similarity indices of 70% (based on morphological characteristics) and 60% (based on the intergenic region 16S-23S rDNA). Considering morphophysiological and genotypic characteristics, three promising isolates should be evaluated in studies under field conditions for the potential development of bioproducts to replace industrially manufactured inputs in rice crops. MenosRice production in Brazil incurs high costs due to the significant use of agrochemicals. Some plant growth-promoting rhizobacteria (PGPR) can be used as alternative to fertilizers and phytosanitary products. Thus, the objective of this study was to characterize endophytic bacteria isolated from roots of rice plants. The isolates were characterized based on colony morphology, antibiotic resistance, carbon sources utilization, enzyme activity (catalase, amylase, protease, cellulase, and lipase), inorganic phosphate solubilization, and the 16S-23S rDNA intergenic region. Morphologically, 68% of the isolates presented a rapid growth rate, 46% presented abundant mucus production, and 77% formed viscous colonies. All isolates were resistant to nalidixic acid and 16% presented resistance to streptomycin. The majority (90%) used monosaccharides and disaccharides in carbon source assays. Most of the isolates (95%) were positive for catalase and 63.6% were positive for amylase, protease, lipase, and cellulase activities. Additionally, 59% of them were able to solubilize phosphate. The mean enzymatic index for amylase, cellulase, and protease was 2.8, 3.5, and 1.7 respectively. The similarity analysis revealed high diversity among the isolates, with similarity indices of 70% (based on morphological characteristics) and 60% (based on the intergenic region 16S-23S rDNA). Considering morphophysiological and genotypic characteristics, three promising isolates should be evaluated in studies... Mostrar Tudo |
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Palavras-Chave: |
Extracellular enzymes; OCR 16S-23S; RDNA. |
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Thesagro: |
Arroz; Bactéria; Enzima; Fator de Crescimento; Oryza Sativa. |
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Thesaurus Nal: |
Genotype; Plant growth-promoting rhizobacteria; Rice. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1159886/1/rev-caatinga-2023.pdf
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Marc: |
LEADER 02594naa a2200325 a 4500
001 2159886
005 2023-12-18
008 2023 bl uuuu u00u1 u #d
022 $a1983-2125
100 1 $aLEONARDO-SILVA, L.
245 $aAssessment of morphophysiological and genotypic diversity of endophytic bacteria isolated from rice (Oryza sativa L.) plants.$h[electronic resource]
260 $c2023
520 $aRice production in Brazil incurs high costs due to the significant use of agrochemicals. Some plant growth-promoting rhizobacteria (PGPR) can be used as alternative to fertilizers and phytosanitary products. Thus, the objective of this study was to characterize endophytic bacteria isolated from roots of rice plants. The isolates were characterized based on colony morphology, antibiotic resistance, carbon sources utilization, enzyme activity (catalase, amylase, protease, cellulase, and lipase), inorganic phosphate solubilization, and the 16S-23S rDNA intergenic region. Morphologically, 68% of the isolates presented a rapid growth rate, 46% presented abundant mucus production, and 77% formed viscous colonies. All isolates were resistant to nalidixic acid and 16% presented resistance to streptomycin. The majority (90%) used monosaccharides and disaccharides in carbon source assays. Most of the isolates (95%) were positive for catalase and 63.6% were positive for amylase, protease, lipase, and cellulase activities. Additionally, 59% of them were able to solubilize phosphate. The mean enzymatic index for amylase, cellulase, and protease was 2.8, 3.5, and 1.7 respectively. The similarity analysis revealed high diversity among the isolates, with similarity indices of 70% (based on morphological characteristics) and 60% (based on the intergenic region 16S-23S rDNA). Considering morphophysiological and genotypic characteristics, three promising isolates should be evaluated in studies under field conditions for the potential development of bioproducts to replace industrially manufactured inputs in rice crops.
650 $aGenotype
650 $aPlant growth-promoting rhizobacteria
650 $aRice
650 $aArroz
650 $aBactéria
650 $aEnzima
650 $aFator de Crescimento
650 $aOryza Sativa
653 $aExtracellular enzymes
653 $aOCR 16S-23S
653 $aRDNA
700 1 $aSILVA, L. B. da
700 1 $aFERREIRA, E. P. de B.
700 1 $aREIS, K. F. D. N. S. dos
700 1 $aNAVES, P. L. F.
700 1 $aMARTIN-DIDONET, C. C. G.
773 $tRevista Caatinga$gv. 36, n. 4, p. 775-784, out./dez. 2023.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Biblioteca |
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| Registros recuperados : 431 | |
| 142. |  | SILVA, W. L. C.; PEREIRA, W.; LOPES, C. A.; FONTES, R. R.; LOBO JUNIOR, M. Weeds and plant diseases in crop rotation systems for processing tomatoes under center pivor in Central Brazil. In: ISHS SYMPOSIUM ON THE PROCESSING TOMATO, 7., 2000, Sacramento, California. [Abstracts...] Sacramento: ISHS, 2000. p.66. Resumo.| Biblioteca(s): Embrapa Hortaliças. |
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| 144. | | SOUZA, A. F.; MAROUELLI, W. A.; MESQUITA FILHO, M. V. de; SILVA, H. R.; PEREIRA, W. Exportação de macronutrientes pela abóbora híbrida submetida a diferentes lâminas de irrigação e níveis de N em um latossolo. Horticultura Brasileira, Brasília, DF, v. 19, n. 2, jul. 2001. p. 290 1 CD-ROM. Suplemento. Trabalho apresentado no 41. Congresso Brasileiro de Olericultura, 2001.| Biblioteca(s): Embrapa Hortaliças. |
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| 148. | | NASCENTE, A. S.; MEDEIROS, M. A.; PEREIRA, W.; FRANCA, F. H. Flutuacao populacional de herbivoros, predadores e parasitoides em cultivo de tomate para processamento consorciado com plantas daninhas. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 17.; ENCONTRO NACIONAL DE FITOSSANITARISTAS, 8., 1998, Rio de Janeiro, RJ. Resumos... Rio de Janeiro: SEB, 1998. v.1. p.478.| Biblioteca(s): Embrapa Hortaliças. |
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| 149. | | BAPTISTA, M. J.; SOUZA, R. B. de; PEREIRA, W.; LOPES, C. A.; CARRIJO, O. A. Efeito da solarização e biofumigação na incidência da murcha bacteriana em tomateiro no campo. Horticultura Brasileira, Brasília, DF, v. 24, n. 2, p. 161-165 abr./jun. 2006.| Biblioteca(s): Embrapa Hortaliças. |
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| 151. | | CARDOSO, M. O.; OLIVEIRA, A. P. de; PEREIRA, W. E.; SOUZA, A. P. de. Growth, nutrition and yield of eggplant as affected by doses of cattle manure and magnesium thermophosphate plus cow urine. Horticultura Brasileira, Brasília, v. 27, n. 3, p. 307-313, set. 2009.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 154. | | CHAVES, V. A.; SANTOS, S. G.; SCHULTZ, N.; PEREIRA, W.; MONTEIRO, R. C.; REIS, V. M. Desenvolvimento inicial de duas variedades de cana-de-açúcar inoculadas com bactérias diazotróficas Revista Brasileira de Ciência do Solo, v. 39, n. 6, p. 1595-1602, 2015.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 155. | | CAFE FILHO, A. C.; LOPES, C. A.; FONSECA, M. E. N.; MALNATI, W. D.; PEREIRA, W. Dados preliminares sobre o controle biologico do amendoim bravo (Euphorbia heterophylla) por fungos. Fitopatologia Brasileira, Brasilia, v.12, n.2, p.138, jul. 1987. Resumo.| Biblioteca(s): Embrapa Hortaliças. |
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| 156. | | SILVA, W. L. C.; LOPES, C. A.; PEREIRA, W.; FONTES, R. R. Crop rotation systems for irrigated processing tomatoes in central Brazil. In: INTERNATIONAL CONFERENCE ON THE PROCESSING TOMATO, 1., INTERNATIONAL SYMPOSIUM ON TROPICAL TOMATO DISEASES, 1., 1996, Recife. Proceedings... Alexandria: ASHS / IPA, 1997. p.80.| Biblioteca(s): Embrapa Hortaliças. |
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| Registros recuperados : 431 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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