Effect of Indole-3-Acetic Acid on Tomato Plant Growth

Detalhes bibliográficos
Autor(a) principal: Lobo, Laiana Lana Bentes [UNESP]
Data de Publicação: 2022
Outros Autores: de Andrade da Silva, Maura Santos Reis [UNESP], Castellane, Tereza Cristina Luque [UNESP], Carvalho, Rogério Falleiros, Rigobelo, Everlon Cid [UNESP]
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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spelling 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
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