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Registro Completo |
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
29/09/2020 |
Data da última atualização: |
29/09/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
BOMFIM, C. S. G.; SILVA, V. B. da; CURSINO, L. H. S.; MATTOS, W. da S.; SANTOS, J. C. S.; SOUZA, L. S. B. de; DANTAS, B. F.; FREITAS, A. D. S. de; FERNANDES JUNIOR, P. I. |
Afiliação: |
Cláudia Silva Gomes Bomfim, Univasf; Valéria Borges da Silva, UFPB; Luiz Henrique Santos Cursino, Bolsista UPE; Wesley da Silva Mattos, Bolsista UPE; Jéssica Caroline Souza Santos, Bolsista UPE; Layane Silva Barbosa de Souza, Bolsista UFRPE; BARBARA FRANCA DANTAS, CPATSA; Ana Dolores Santiago de Freitas, Bolsista UFRPE; PAULO IVAN FERNANDES JUNIOR, CPATSA. |
Título: |
Endophytic bacteria naturally inhabiting commercial maize seeds occupy different niches and are efficient plant growth-promoting agent. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Symbiosis, v. 81, p. 255?269, august 2020. |
ISSN: |
0334-5114 |
DOI: |
https://doi.org/10.1007/s13199-020-00701-z |
Idioma: |
Inglês |
Conteúdo: |
The isolation of seed-endophytic bacteria (SEB) is a promising approach for the selection of maize plant growth-promoting bacteria (PGPB). With the hypothesis that maize seeds harbor SEB that occupy different niches and show plant-growth-promoting abilities, we aimed to isolate and characterize the potential PGPB from these seeds. The bacteria from commercial seeds (BRS Gorutuba) and axenically grown maize-seedlings were isolated, molecularly fingerprinted, and genetically characterized by amplified ribosomal DNA restriction analysis (ARDRA). All SEB were evaluated for their promotion of early root growth. The selected strains were identified by 16S rRNA sequencing and evaluated for their plant growth-promotion traits. A pot experiment was conducted to assess the ability of the SEB to promote maize-growth and nutrient accumulation. Fifty-one bacterial strains were retrieved, mostly isolated directly from the seeds. All the isolated bacteria represented different strains according to their molecular fingerprinting. ARDRA clustering revealed six clusters influenced by their plant tissue/organ of origin. Twenty-nine SEB were selected based on their influence on early root growth. The 16S rRNA sequences classified the SEB as Bacillus (22), Paenibacillus (2) and Acinetobacter (5). The inoculation of Bacillus ESA 674 improved the shoot dry mass in 57% and the Acinetobacter ESA 662 improved the root growth by 235%, both compared to the uninoculated control. At least 12 bacteria improved nutrient content in the shoots. The Bacillus spp. ESA 674 and ESA 652 outstood in improving maize nutrition by increasing the accumulation of several nutrients. MenosThe isolation of seed-endophytic bacteria (SEB) is a promising approach for the selection of maize plant growth-promoting bacteria (PGPB). With the hypothesis that maize seeds harbor SEB that occupy different niches and show plant-growth-promoting abilities, we aimed to isolate and characterize the potential PGPB from these seeds. The bacteria from commercial seeds (BRS Gorutuba) and axenically grown maize-seedlings were isolated, molecularly fingerprinted, and genetically characterized by amplified ribosomal DNA restriction analysis (ARDRA). All SEB were evaluated for their promotion of early root growth. The selected strains were identified by 16S rRNA sequencing and evaluated for their plant growth-promotion traits. A pot experiment was conducted to assess the ability of the SEB to promote maize-growth and nutrient accumulation. Fifty-one bacterial strains were retrieved, mostly isolated directly from the seeds. All the isolated bacteria represented different strains according to their molecular fingerprinting. ARDRA clustering revealed six clusters influenced by their plant tissue/organ of origin. Twenty-nine SEB were selected based on their influence on early root growth. The 16S rRNA sequences classified the SEB as Bacillus (22), Paenibacillus (2) and Acinetobacter (5). The inoculation of Bacillus ESA 674 improved the shoot dry mass in 57% and the Acinetobacter ESA 662 improved the root growth by 235%, both compared to the uninoculated control. At least 12 bacteria imp... Mostrar Tudo |
Palavras-Chave: |
Isolamento de bactérias endofíticas; Nutrição de planta. |
Thesagro: |
Absorção de Nutrientes; Bacilo; Bactéria; Milho; Semente. |
Thesaurus Nal: |
Acinetobacter; Plant growth control; Seed-borne bacteria. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 02786naa a2200361 a 4500 001 2125163 005 2020-09-29 008 2020 bl uuuu u00u1 u #d 022 $a0334-5114 024 7 $ahttps://doi.org/10.1007/s13199-020-00701-z$2DOI 100 1 $aBOMFIM, C. S. G. 245 $aEndophytic bacteria naturally inhabiting commercial maize seeds occupy different niches and are efficient plant growth-promoting agent.$h[electronic resource] 260 $c2020 520 $aThe isolation of seed-endophytic bacteria (SEB) is a promising approach for the selection of maize plant growth-promoting bacteria (PGPB). With the hypothesis that maize seeds harbor SEB that occupy different niches and show plant-growth-promoting abilities, we aimed to isolate and characterize the potential PGPB from these seeds. The bacteria from commercial seeds (BRS Gorutuba) and axenically grown maize-seedlings were isolated, molecularly fingerprinted, and genetically characterized by amplified ribosomal DNA restriction analysis (ARDRA). All SEB were evaluated for their promotion of early root growth. The selected strains were identified by 16S rRNA sequencing and evaluated for their plant growth-promotion traits. A pot experiment was conducted to assess the ability of the SEB to promote maize-growth and nutrient accumulation. Fifty-one bacterial strains were retrieved, mostly isolated directly from the seeds. All the isolated bacteria represented different strains according to their molecular fingerprinting. ARDRA clustering revealed six clusters influenced by their plant tissue/organ of origin. Twenty-nine SEB were selected based on their influence on early root growth. The 16S rRNA sequences classified the SEB as Bacillus (22), Paenibacillus (2) and Acinetobacter (5). The inoculation of Bacillus ESA 674 improved the shoot dry mass in 57% and the Acinetobacter ESA 662 improved the root growth by 235%, both compared to the uninoculated control. At least 12 bacteria improved nutrient content in the shoots. The Bacillus spp. ESA 674 and ESA 652 outstood in improving maize nutrition by increasing the accumulation of several nutrients. 650 $aAcinetobacter 650 $aPlant growth control 650 $aSeed-borne bacteria 650 $aAbsorção de Nutrientes 650 $aBacilo 650 $aBactéria 650 $aMilho 650 $aSemente 653 $aIsolamento de bactérias endofíticas 653 $aNutrição de planta 700 1 $aSILVA, V. B. da 700 1 $aCURSINO, L. H. S. 700 1 $aMATTOS, W. da S. 700 1 $aSANTOS, J. C. S. 700 1 $aSOUZA, L. S. B. de 700 1 $aDANTAS, B. F. 700 1 $aFREITAS, A. D. S. de 700 1 $aFERNANDES JUNIOR, P. I. 773 $tSymbiosis$gv. 81, p. 255?269, august 2020.
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Embrapa Semiárido (CPATSA) |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
17/01/2008 |
Data da última atualização: |
02/05/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
RANGEL, P. H. N.; BRONDANI, C.; MORAIS, O. P. de; SCHIOCCHET, M. A.; BORBA, T. C. de O.; RANGEL, P. N.; BRONDANI, R. P. V.; YOKOYAMA, S.; BACHA, R. E.; ISHIY, T. |
Afiliação: |
PAULO HIDEO NAKANO RANGEL, CNPAF; CLAUDIO BRONDANI, CNPAF; ORLANDO PEIXOTO DE MORAIS, CNPAF; MOACIR ANTONIO SCHIOCCHET, EPAGRI; TEREZA CRISTINA DE OLIVEIRA BORBA, CNPAF; PRISCILA NASCIMENTO RANGEL, bolsista CNPAF; ROSANA PEREIRA VIANELLO, CNPAF; SATORO YOKOYAMA, EPAGRI; RICHARD ELIAS BACHA, EPAGRI; TAKAZI ISHIY, EPAGRI. |
Título: |
Establishment of the irrigated rice cultivar SCSBRS Tio Taka by recurrent selection. |
Ano de publicação: |
2007 |
Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, v. 7, n. 1, p. 103-110, Mar. 2007. |
Idioma: |
Inglês |
Conteúdo: |
This study aimed to present and discuss the recurrent selection methodology used in the development of the rice cultivar SCSBRS Tio Taka. This cultivar, derived from the population CNA-IRAT 4, achieves high yields and has agronomic traits related to a better performance in the pre-germinated cultivation system used in Santa Catarina State. The molecular characterization of Tio Taka and CNA-IRAT 4 parents with 16 SSR markers showed that one of the parents, BG 90-2, was highly similar to SCSBRS Tio Taka. The most probable reason was that SCSBRS Tio Taka was extracted from CNA-IRAT 4 in the second recombination cycle, preventing the ccurrence of a high level of recombination and favoring the phenotypic selection of plants derived from crosses with BG 90-2 as parent, once this line has one of the best plant architectures and yields. |
Palavras-Chave: |
Marcadores SSR; Melhoramento populacional; Produtividade de grãos; SCSBRS Tio Taka. |
Thesagro: |
Agricultura; Arroz irrigado; Biotecnologia; Genética; Melhoramento genético vegetal; Oryza Sativa; Seleção Recorrente; Variedade. |
Categoria do assunto: |
G Melhoramento Genético |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/102431/1/cbab.pdf
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Marc: |
LEADER 01905naa a2200373 a 4500 001 1212636 005 2022-05-02 008 2007 bl uuuu u00u1 u #d 100 1 $aRANGEL, P. H. N. 245 $aEstablishment of the irrigated rice cultivar SCSBRS Tio Taka by recurrent selection. 260 $c2007 520 $aThis study aimed to present and discuss the recurrent selection methodology used in the development of the rice cultivar SCSBRS Tio Taka. This cultivar, derived from the population CNA-IRAT 4, achieves high yields and has agronomic traits related to a better performance in the pre-germinated cultivation system used in Santa Catarina State. The molecular characterization of Tio Taka and CNA-IRAT 4 parents with 16 SSR markers showed that one of the parents, BG 90-2, was highly similar to SCSBRS Tio Taka. The most probable reason was that SCSBRS Tio Taka was extracted from CNA-IRAT 4 in the second recombination cycle, preventing the ccurrence of a high level of recombination and favoring the phenotypic selection of plants derived from crosses with BG 90-2 as parent, once this line has one of the best plant architectures and yields. 650 $aAgricultura 650 $aArroz irrigado 650 $aBiotecnologia 650 $aGenética 650 $aMelhoramento genético vegetal 650 $aOryza Sativa 650 $aSeleção Recorrente 650 $aVariedade 653 $aMarcadores SSR 653 $aMelhoramento populacional 653 $aProdutividade de grãos 653 $aSCSBRS Tio Taka 700 1 $aBRONDANI, C. 700 1 $aMORAIS, O. P. de 700 1 $aSCHIOCCHET, M. A. 700 1 $aBORBA, T. C. de O. 700 1 $aRANGEL, P. N. 700 1 $aBRONDANI, R. P. V. 700 1 $aYOKOYAMA, S. 700 1 $aBACHA, R. E. 700 1 $aISHIY, T. 773 $tCrop Breeding and Applied Biotechnology$gv. 7, n. 1, p. 103-110, Mar. 2007.
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