Endophytic bacteria Bacillus safensis and Pseudomonas hibiscicola and their ability to increase rice seedling growth
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/263574 |
Resumo: | Endophytic bacteria Bacillus safensis RS95 and Pseudomonas hibiscicola RS121 were evaluated for their ability to promote the growth of rice seedlings and produce indole-acetic acid (IAA) and siderophores and to solubilize phosphates. ‘Guri’ rice seeds were immersed in bacterial endophyte cell suspensions (separated and two-strain mixed), as well as in Escherichia coli DH5α, phosphate-buffered saline (PBS) and water treatments (negative controls). Seeds were sown on agar-water in Petri plates placed vertically at an angle of 65°. The ability of plant growth-promoting endophytic bacteria (PGPEB) to produce IAA and siderophores was determined by Salkowski colorimetric and chrome azurol S (CAS) assays, respectively. Mineral phosphate solubilization activity was calculated by inoculating the endophytes onto medium containing insoluble phosphate. PGPEB showed a positive effect on the growth of rice seedlings, causing a mean growth of shoots and primary-roots of 60 and 67%, respectively. Bacterial strains also showed positive traits for IAA and siderophore production, as well as phosphate-solubilization activity. |
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Lanna Filho, RobertoPozzebon, Bruna CanabarroOliveira, Andreia Mara Rotta de2023-08-16T03:32:06Z20220020-3653http://hdl.handle.net/10183/263574001172190Endophytic bacteria Bacillus safensis RS95 and Pseudomonas hibiscicola RS121 were evaluated for their ability to promote the growth of rice seedlings and produce indole-acetic acid (IAA) and siderophores and to solubilize phosphates. ‘Guri’ rice seeds were immersed in bacterial endophyte cell suspensions (separated and two-strain mixed), as well as in Escherichia coli DH5α, phosphate-buffered saline (PBS) and water treatments (negative controls). Seeds were sown on agar-water in Petri plates placed vertically at an angle of 65°. The ability of plant growth-promoting endophytic bacteria (PGPEB) to produce IAA and siderophores was determined by Salkowski colorimetric and chrome azurol S (CAS) assays, respectively. Mineral phosphate solubilization activity was calculated by inoculating the endophytes onto medium containing insoluble phosphate. PGPEB showed a positive effect on the growth of rice seedlings, causing a mean growth of shoots and primary-roots of 60 and 67%, respectively. Bacterial strains also showed positive traits for IAA and siderophore production, as well as phosphate-solubilization activity.application/pdfengArquivos do Instituto Biológico. São Paulo. vol. 89 (2022), [art.] e00162021, 5 p.ArrozMudaEstimulante de crescimento vegetalIndole-acetic acidSiderophorePhosphate-solubilizationPlant growth-promoting endophytic bacteriaEndophytic bacteria Bacillus safensis and Pseudomonas hibiscicola and their ability to increase rice seedling growthinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001172190.pdf.txt001172190.pdf.txtExtracted Texttext/plain20395http://www.lume.ufrgs.br/bitstream/10183/263574/2/001172190.pdf.txtfc99fde9e49d1f076a05a864cbc44cc7MD52ORIGINAL001172190.pdfTexto completoapplication/pdf617807http://www.lume.ufrgs.br/bitstream/10183/263574/1/001172190.pdfa501c4b4c047f642ae6db07d682c8c51MD5110183/2635742023-08-17 03:34:37.881186oai:www.lume.ufrgs.br:10183/263574Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-08-17T06:34:37Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Endophytic bacteria Bacillus safensis and Pseudomonas hibiscicola and their ability to increase rice seedling growth |
title |
Endophytic bacteria Bacillus safensis and Pseudomonas hibiscicola and their ability to increase rice seedling growth |
spellingShingle |
Endophytic bacteria Bacillus safensis and Pseudomonas hibiscicola and their ability to increase rice seedling growth Lanna Filho, Roberto Arroz Muda Estimulante de crescimento vegetal Indole-acetic acid Siderophore Phosphate-solubilization Plant growth-promoting endophytic bacteria |
title_short |
Endophytic bacteria Bacillus safensis and Pseudomonas hibiscicola and their ability to increase rice seedling growth |
title_full |
Endophytic bacteria Bacillus safensis and Pseudomonas hibiscicola and their ability to increase rice seedling growth |
title_fullStr |
Endophytic bacteria Bacillus safensis and Pseudomonas hibiscicola and their ability to increase rice seedling growth |
title_full_unstemmed |
Endophytic bacteria Bacillus safensis and Pseudomonas hibiscicola and their ability to increase rice seedling growth |
title_sort |
Endophytic bacteria Bacillus safensis and Pseudomonas hibiscicola and their ability to increase rice seedling growth |
author |
Lanna Filho, Roberto |
author_facet |
Lanna Filho, Roberto Pozzebon, Bruna Canabarro Oliveira, Andreia Mara Rotta de |
author_role |
author |
author2 |
Pozzebon, Bruna Canabarro Oliveira, Andreia Mara Rotta de |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Lanna Filho, Roberto Pozzebon, Bruna Canabarro Oliveira, Andreia Mara Rotta de |
dc.subject.por.fl_str_mv |
Arroz Muda Estimulante de crescimento vegetal |
topic |
Arroz Muda Estimulante de crescimento vegetal Indole-acetic acid Siderophore Phosphate-solubilization Plant growth-promoting endophytic bacteria |
dc.subject.eng.fl_str_mv |
Indole-acetic acid Siderophore Phosphate-solubilization Plant growth-promoting endophytic bacteria |
description |
Endophytic bacteria Bacillus safensis RS95 and Pseudomonas hibiscicola RS121 were evaluated for their ability to promote the growth of rice seedlings and produce indole-acetic acid (IAA) and siderophores and to solubilize phosphates. ‘Guri’ rice seeds were immersed in bacterial endophyte cell suspensions (separated and two-strain mixed), as well as in Escherichia coli DH5α, phosphate-buffered saline (PBS) and water treatments (negative controls). Seeds were sown on agar-water in Petri plates placed vertically at an angle of 65°. The ability of plant growth-promoting endophytic bacteria (PGPEB) to produce IAA and siderophores was determined by Salkowski colorimetric and chrome azurol S (CAS) assays, respectively. Mineral phosphate solubilization activity was calculated by inoculating the endophytes onto medium containing insoluble phosphate. PGPEB showed a positive effect on the growth of rice seedlings, causing a mean growth of shoots and primary-roots of 60 and 67%, respectively. Bacterial strains also showed positive traits for IAA and siderophore production, as well as phosphate-solubilization activity. |
publishDate |
2022 |
dc.date.issued.fl_str_mv |
2022 |
dc.date.accessioned.fl_str_mv |
2023-08-16T03:32:06Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/other |
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info:eu-repo/semantics/publishedVersion |
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article |
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publishedVersion |
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http://hdl.handle.net/10183/263574 |
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0020-3653 |
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001172190 |
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http://hdl.handle.net/10183/263574 |
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eng |
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eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Arquivos do Instituto Biológico. São Paulo. vol. 89 (2022), [art.] e00162021, 5 p. |
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info:eu-repo/semantics/openAccess |
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openAccess |
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