Tryptophan-Dependent Production of Indole-3-Acetic Acid (IAA) Affects Level of Plant Growth Promotion by Bacillus amyloliquefaciens FZB42
Phytohormone-like acting compounds previously have been suggested to be involved in the phytostimulatory action exerted by the plant-beneficial rhizobacterium Bacillus amyloliquefaciens FZB42. Analyses by high-performance liquid chromatography and gas chromatography-mass spectrometry performed...
| Autores principales: | , , , |
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| Formato: | article |
| Lenguaje: | Inglés |
| Publicado: |
(MPMI)
2020
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.11939/6445 https://apsjournals.apsnet.org/doi/abs/10.1094/MPMI-20-6-0619 |
| _version_ | 1855032428196790272 |
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| author | Idris, Elsorra E. Iglesias, Domingo J. Talón, Manuel Borriss, Rainer |
| author_browse | Borriss, Rainer Idris, Elsorra E. Iglesias, Domingo J. Talón, Manuel |
| author_facet | Idris, Elsorra E. Iglesias, Domingo J. Talón, Manuel Borriss, Rainer |
| author_sort | Idris, Elsorra E. |
| collection | ReDivia |
| description | Phytohormone-like acting compounds previously have been
suggested to be involved in the phytostimulatory action exerted
by the plant-beneficial rhizobacterium Bacillus amyloliquefaciens
FZB42. Analyses by high-performance liquid
chromatography and gas chromatography-mass spectrometry
performed with culture filtrates of FZB42 demonstrated
the presence of indole-3-acetic acid (IAA), corroborating
it as one of the pivotal plant-growth-promoting
substances produced by this bacterium. In the presence of
5 mM tryptophan, a fivefold increase in IAA secretion was
registered. In addition, in the trp auxotrophic strains E101
(ΔtrpBA) and E102 (ΔtrpED), and in two other strains
bearing knockout mutations in genes probably involved in
IAA metabolism, E103 (ΔysnE, putative IAA transacetylase)
and E105 (ΔyhcX, putative nitrilase), the concentration
of IAA in the culture filtrates was diminished. Three of
these mutant strains were less efficient in promoting plant
growth, indicating that the Trp-dependent synthesis of auxins
and plant growth promotion are functionally related in
B. amyloliquefaciens. |
| format | article |
| id | ReDivia6445 |
| institution | Instituto Valenciano de Investigaciones Agrarias (IVIA) |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | (MPMI) |
| publisherStr | (MPMI) |
| record_format | dspace |
| spelling | ReDivia64452025-04-25T14:47:07Z Tryptophan-Dependent Production of Indole-3-Acetic Acid (IAA) Affects Level of Plant Growth Promotion by Bacillus amyloliquefaciens FZB42 Idris, Elsorra E. Iglesias, Domingo J. Talón, Manuel Borriss, Rainer F60 Plant physiology and biochemistry Phytohormone-like acting compounds previously have been suggested to be involved in the phytostimulatory action exerted by the plant-beneficial rhizobacterium Bacillus amyloliquefaciens FZB42. Analyses by high-performance liquid chromatography and gas chromatography-mass spectrometry performed with culture filtrates of FZB42 demonstrated the presence of indole-3-acetic acid (IAA), corroborating it as one of the pivotal plant-growth-promoting substances produced by this bacterium. In the presence of 5 mM tryptophan, a fivefold increase in IAA secretion was registered. In addition, in the trp auxotrophic strains E101 (ΔtrpBA) and E102 (ΔtrpED), and in two other strains bearing knockout mutations in genes probably involved in IAA metabolism, E103 (ΔysnE, putative IAA transacetylase) and E105 (ΔyhcX, putative nitrilase), the concentration of IAA in the culture filtrates was diminished. Three of these mutant strains were less efficient in promoting plant growth, indicating that the Trp-dependent synthesis of auxins and plant growth promotion are functionally related in B. amyloliquefaciens. 2020-05-14T15:19:59Z 2020-05-14T15:19:59Z 2007 article publishedVersion Idris, E. E., Iglesias, D. J., Talon, M., & Borriss, R. (2007). Tryptophan-dependent production of indole-3-acetic acid (IAA) affects level of plant growth promotion by Bacillus amyloliquefaciens FZB42. Molecular plant-microbe interactions, 20(6), 619-626. 0894-0282 http://hdl.handle.net/20.500.11939/6445 10.1094/MPMI-20-6-0619 https://apsjournals.apsnet.org/doi/abs/10.1094/MPMI-20-6-0619 en Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ (MPMI) electronico |
| spellingShingle | F60 Plant physiology and biochemistry Idris, Elsorra E. Iglesias, Domingo J. Talón, Manuel Borriss, Rainer Tryptophan-Dependent Production of Indole-3-Acetic Acid (IAA) Affects Level of Plant Growth Promotion by Bacillus amyloliquefaciens FZB42 |
| title | Tryptophan-Dependent Production of Indole-3-Acetic Acid (IAA) Affects Level of Plant Growth Promotion by Bacillus amyloliquefaciens FZB42 |
| title_full | Tryptophan-Dependent Production of Indole-3-Acetic Acid (IAA) Affects Level of Plant Growth Promotion by Bacillus amyloliquefaciens FZB42 |
| title_fullStr | Tryptophan-Dependent Production of Indole-3-Acetic Acid (IAA) Affects Level of Plant Growth Promotion by Bacillus amyloliquefaciens FZB42 |
| title_full_unstemmed | Tryptophan-Dependent Production of Indole-3-Acetic Acid (IAA) Affects Level of Plant Growth Promotion by Bacillus amyloliquefaciens FZB42 |
| title_short | Tryptophan-Dependent Production of Indole-3-Acetic Acid (IAA) Affects Level of Plant Growth Promotion by Bacillus amyloliquefaciens FZB42 |
| title_sort | tryptophan dependent production of indole 3 acetic acid iaa affects level of plant growth promotion by bacillus amyloliquefaciens fzb42 |
| topic | F60 Plant physiology and biochemistry |
| url | http://hdl.handle.net/20.500.11939/6445 https://apsjournals.apsnet.org/doi/abs/10.1094/MPMI-20-6-0619 |
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