Effect of Indole-3-Acetic Acid on Tomato Plant 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 UNESP |
Texto Completo: | http://dx.doi.org/10.3390/microorganisms10112212 http://hdl.handle.net/11449/246272 |
Resumo: | Plant growth-promoting bacteria have several abilities to promote plant growth and development. One of these skills is the synthesis of indole-3-acetic acid (IAA), which mainly promotes root and shoot development. The bacteria Bacillus subtilis and Azospirillum brasilense have been widely used in agriculture with this function. However, little is known about whether the joint inoculation of these bacteria can reduce plant development by the excess of IAA produced as a result of the joint inoculation. The objective of the present study was to verify the effect of IAA on the inoculation of B. subtilis and A. brasilense in three tomato genotypes. The Micro-Tom genotype without mutation for IAA synthesis, Entire, has high sensitivity to IAA, and the diageotropic genotype (dgt) has low sensitivity to IAA. The results show that the plant parameter most sensitive to microbial inoculation is the number of roots. No treatment increased the shoot dry mass parameters for the Micro-Tom genotype and dgt, root dry mass for the Micro-Tom genotype, plant height for the Micro-Tom and Entire genotypes, root area and root volume for the genotype dgt. The Azm treatment reduced plant height compared to the control in the dgt, the BS + Azw and BS + Azm treatments in the Micro-Tom genotype and the Azw + Azm treatment in the dgt genotype reduced the plant diameter compared to the control. BS and BS + Azw reduced the number of roots in the Micro-Tom. The results strongly support that the mixture of B. subtilis and A. brasilense can reduce some parameters of plant development; however, this effect is possibly an interference in the mode of action of growth promotion of each isolate and is not related to an excess of IAA produced by the bacteria. |
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Effect of Indole-3-Acetic Acid on Tomato Plant GrowthAzospirillum brasilenseBacillus subtilistomatoPlant growth-promoting bacteria have several abilities to promote plant growth and development. One of these skills is the synthesis of indole-3-acetic acid (IAA), which mainly promotes root and shoot development. The bacteria Bacillus subtilis and Azospirillum brasilense have been widely used in agriculture with this function. However, little is known about whether the joint inoculation of these bacteria can reduce plant development by the excess of IAA produced as a result of the joint inoculation. The objective of the present study was to verify the effect of IAA on the inoculation of B. subtilis and A. brasilense in three tomato genotypes. The Micro-Tom genotype without mutation for IAA synthesis, Entire, has high sensitivity to IAA, and the diageotropic genotype (dgt) has low sensitivity to IAA. The results show that the plant parameter most sensitive to microbial inoculation is the number of roots. No treatment increased the shoot dry mass parameters for the Micro-Tom genotype and dgt, root dry mass for the Micro-Tom genotype, plant height for the Micro-Tom and Entire genotypes, root area and root volume for the genotype dgt. The Azm treatment reduced plant height compared to the control in the dgt, the BS + Azw and BS + Azm treatments in the Micro-Tom genotype and the Azw + Azm treatment in the dgt genotype reduced the plant diameter compared to the control. BS and BS + Azw reduced the number of roots in the Micro-Tom. The results strongly support that the mixture of B. subtilis and A. brasilense can reduce some parameters of plant development; however, this effect is possibly an interference in the mode of action of growth promotion of each isolate and is not related to an excess of IAA produced by the bacteria.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Agricultural and Livestock Microbiology Graduation Program School of Agricultural and Veterinary Sciences São Paulo State University (UNESP)School of Agricultural and Veterinary Sciences São Paulo State University (UNESP), Rod. Prof. Paulo Donato Castellane km 5Department of Applied Biology to Agriculture Faculty of Agrarian and Veterinary Sciences Access Route Prof. Paulo Donato Castellane, Vila IndustrialAgricultural and Livestock Microbiology Graduation Program School of Agricultural and Veterinary Sciences São Paulo State University (UNESP)School of Agricultural and Veterinary Sciences São Paulo State University (UNESP), Rod. Prof. Paulo Donato Castellane km 5CAPES: 001Universidade Estadual Paulista (UNESP)Access Route Prof. Paulo Donato CastellaneLobo, Laiana Lana Bentes [UNESP]de Andrade da Silva, Maura Santos Reis [UNESP]Castellane, Tereza Cristina Luque [UNESP]Carvalho, Rogério FalleirosRigobelo, Everlon Cid [UNESP]2023-07-29T12:36:20Z2023-07-29T12:36:20Z2022-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.3390/microorganisms10112212Microorganisms, v. 10, n. 11, 2022.2076-2607http://hdl.handle.net/11449/24627210.3390/microorganisms101122122-s2.0-85141680346Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMicroorganismsinfo:eu-repo/semantics/openAccess2023-07-29T12:36:20Zoai:repositorio.unesp.br:11449/246272Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:56:23.427248Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Effect of Indole-3-Acetic Acid on Tomato Plant Growth |
title |
Effect of Indole-3-Acetic Acid on Tomato Plant Growth |
spellingShingle |
Effect of Indole-3-Acetic Acid on Tomato Plant Growth Lobo, Laiana Lana Bentes [UNESP] Azospirillum brasilense Bacillus subtilis tomato |
title_short |
Effect of Indole-3-Acetic Acid on Tomato Plant Growth |
title_full |
Effect of Indole-3-Acetic Acid on Tomato Plant Growth |
title_fullStr |
Effect of Indole-3-Acetic Acid on Tomato Plant Growth |
title_full_unstemmed |
Effect of Indole-3-Acetic Acid on Tomato Plant Growth |
title_sort |
Effect of Indole-3-Acetic Acid on Tomato Plant Growth |
author |
Lobo, Laiana Lana Bentes [UNESP] |
author_facet |
Lobo, Laiana Lana Bentes [UNESP] de Andrade da Silva, Maura Santos Reis [UNESP] Castellane, Tereza Cristina Luque [UNESP] Carvalho, Rogério Falleiros Rigobelo, Everlon Cid [UNESP] |
author_role |
author |
author2 |
de Andrade da Silva, Maura Santos Reis [UNESP] Castellane, Tereza Cristina Luque [UNESP] Carvalho, Rogério Falleiros Rigobelo, Everlon Cid [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Access Route Prof. Paulo Donato Castellane |
dc.contributor.author.fl_str_mv |
Lobo, Laiana Lana Bentes [UNESP] de Andrade da Silva, Maura Santos Reis [UNESP] Castellane, Tereza Cristina Luque [UNESP] Carvalho, Rogério Falleiros Rigobelo, Everlon Cid [UNESP] |
dc.subject.por.fl_str_mv |
Azospirillum brasilense Bacillus subtilis tomato |
topic |
Azospirillum brasilense Bacillus subtilis tomato |
description |
Plant growth-promoting bacteria have several abilities to promote plant growth and development. One of these skills is the synthesis of indole-3-acetic acid (IAA), which mainly promotes root and shoot development. The bacteria Bacillus subtilis and Azospirillum brasilense have been widely used in agriculture with this function. However, little is known about whether the joint inoculation of these bacteria can reduce plant development by the excess of IAA produced as a result of the joint inoculation. The objective of the present study was to verify the effect of IAA on the inoculation of B. subtilis and A. brasilense in three tomato genotypes. The Micro-Tom genotype without mutation for IAA synthesis, Entire, has high sensitivity to IAA, and the diageotropic genotype (dgt) has low sensitivity to IAA. The results show that the plant parameter most sensitive to microbial inoculation is the number of roots. No treatment increased the shoot dry mass parameters for the Micro-Tom genotype and dgt, root dry mass for the Micro-Tom genotype, plant height for the Micro-Tom and Entire genotypes, root area and root volume for the genotype dgt. The Azm treatment reduced plant height compared to the control in the dgt, the BS + Azw and BS + Azm treatments in the Micro-Tom genotype and the Azw + Azm treatment in the dgt genotype reduced the plant diameter compared to the control. BS and BS + Azw reduced the number of roots in the Micro-Tom. The results strongly support that the mixture of B. subtilis and A. brasilense can reduce some parameters of plant development; however, this effect is possibly an interference in the mode of action of growth promotion of each isolate and is not related to an excess of IAA produced by the bacteria. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-11-01 2023-07-29T12:36:20Z 2023-07-29T12:36:20Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.3390/microorganisms10112212 Microorganisms, v. 10, n. 11, 2022. 2076-2607 http://hdl.handle.net/11449/246272 10.3390/microorganisms10112212 2-s2.0-85141680346 |
url |
http://dx.doi.org/10.3390/microorganisms10112212 http://hdl.handle.net/11449/246272 |
identifier_str_mv |
Microorganisms, v. 10, n. 11, 2022. 2076-2607 10.3390/microorganisms10112212 2-s2.0-85141680346 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Microorganisms |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129001047195648 |