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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
09/02/2018 |
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Data da última atualização: |
09/02/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CASTRO, R. A.; DOURADO, M. N.; ALMEIDA, J. R. de; LACAVA, P. T.; NAVE, A.; MELO, I. S. de; AZEVEDO, J. L. de; QUECINE, M. C. |
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Afiliação: |
RENATA ASSIS CASTRO, ESALQ-USP; MANUELLA NOBREGA DOURADO, ICB-USP; JAQUELINE RAQUEL DE ALMEIDA, ESALQ-USP; PAULO TEIXEIRA LACAVA, UFSCar; ANDRE NAVE, Bioflora; ITAMAR SOARES DE MELO, CNPMA; JOAO LUCIO DE AZEVEDO, ESALQ-USP; MARIA CAROLINA QUECINE, ESALQ-USP. |
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Título: |
Mangrove endophyte promotes reforestation tree (Acacia polyphylla) growth. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Brazilian Journal of Microbiology, v. 49, n. 1, p. 59-66, 2018. |
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ISSN: |
1517-8382 |
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DOI: |
https://doi.org/10.1016/j.bjm.2017.04.002 |
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Idioma: |
Inglês |
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Conteúdo: |
Mangroves are ecosystems located in the transition zone between land and sea that serve as a potential source of biotechnological resources. Brazil's extensive coast contains one of the largest mangrove forests in the world (encompassing an area of 25,000 km2 along all the coast). Endophytic bacteria were isolated from the following three plant species: Rhizophora mangle, Laguncularia racemosa and Avicennia nitida. A large number of these isolates, 115 in total, were evaluated for their ability to fix nitrogen and solubilize phosphorous. Bacteria that tested positive for both of these tests were examined further to determine their level of indole acetic acid production. Two strains with high indole acetic acid production were selected for use as inoculants for reforestation trees, and then the growth of the plants was evaluated under field conditions. The bacterium Pseudomonas fluorescens (strain MCR1.10) had a low phosphorus solubilization index, while this index was higher in the other strain used, Enterobacter sp. (strain MCR1.48). We used the reforestation tree Acacia polyphylla. The results indicate that inoculation with the MCR1.48 endophyte increases Acacia polyphylla shoot dry mass, demonstrating that this strain effectively promotes the plant's growth and fitness, which can be used in the seedling production of this tree. Therefore, we successfully screened the biotechnological potential of endophyte isolates from mangrove, with a focus on plant growth promotion, and selected a strain able to provide limited nutrients and hormones for in plant growth. MenosMangroves are ecosystems located in the transition zone between land and sea that serve as a potential source of biotechnological resources. Brazil's extensive coast contains one of the largest mangrove forests in the world (encompassing an area of 25,000 km2 along all the coast). Endophytic bacteria were isolated from the following three plant species: Rhizophora mangle, Laguncularia racemosa and Avicennia nitida. A large number of these isolates, 115 in total, were evaluated for their ability to fix nitrogen and solubilize phosphorous. Bacteria that tested positive for both of these tests were examined further to determine their level of indole acetic acid production. Two strains with high indole acetic acid production were selected for use as inoculants for reforestation trees, and then the growth of the plants was evaluated under field conditions. The bacterium Pseudomonas fluorescens (strain MCR1.10) had a low phosphorus solubilization index, while this index was higher in the other strain used, Enterobacter sp. (strain MCR1.48). We used the reforestation tree Acacia polyphylla. The results indicate that inoculation with the MCR1.48 endophyte increases Acacia polyphylla shoot dry mass, demonstrating that this strain effectively promotes the plant's growth and fitness, which can be used in the seedling production of this tree. Therefore, we successfully screened the biotechnological potential of endophyte isolates from mangrove, with a focus on plant growth promotion, an... Mostrar Tudo |
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Palavras-Chave: |
Endophytic bacteria; IAA; Phosphorus and plant growth promoting bacteria. |
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Thesagro: |
Bactéria; Estimulante de crescimento vegetal; Laguncularia Racemosa; Mangue; Rhizophora Mangle. |
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Thesaurus Nal: |
Avicennia; Growth promotion; Mangrove forests. |
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Categoria do assunto: |
S Ciências Biológicas |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/172492/1/2017AP64.pdf
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Marc: |
LEADER 02658naa a2200361 a 4500
001 2087571
005 2018-02-09
008 2018 bl uuuu u00u1 u #d
022 $a1517-8382
024 7 $ahttps://doi.org/10.1016/j.bjm.2017.04.002$2DOI
100 1 $aCASTRO, R. A.
245 $aMangrove endophyte promotes reforestation tree (Acacia polyphylla) growth.$h[electronic resource]
260 $c2018
520 $aMangroves are ecosystems located in the transition zone between land and sea that serve as a potential source of biotechnological resources. Brazil's extensive coast contains one of the largest mangrove forests in the world (encompassing an area of 25,000 km2 along all the coast). Endophytic bacteria were isolated from the following three plant species: Rhizophora mangle, Laguncularia racemosa and Avicennia nitida. A large number of these isolates, 115 in total, were evaluated for their ability to fix nitrogen and solubilize phosphorous. Bacteria that tested positive for both of these tests were examined further to determine their level of indole acetic acid production. Two strains with high indole acetic acid production were selected for use as inoculants for reforestation trees, and then the growth of the plants was evaluated under field conditions. The bacterium Pseudomonas fluorescens (strain MCR1.10) had a low phosphorus solubilization index, while this index was higher in the other strain used, Enterobacter sp. (strain MCR1.48). We used the reforestation tree Acacia polyphylla. The results indicate that inoculation with the MCR1.48 endophyte increases Acacia polyphylla shoot dry mass, demonstrating that this strain effectively promotes the plant's growth and fitness, which can be used in the seedling production of this tree. Therefore, we successfully screened the biotechnological potential of endophyte isolates from mangrove, with a focus on plant growth promotion, and selected a strain able to provide limited nutrients and hormones for in plant growth.
650 $aAvicennia
650 $aGrowth promotion
650 $aMangrove forests
650 $aBactéria
650 $aEstimulante de crescimento vegetal
650 $aLaguncularia Racemosa
650 $aMangue
650 $aRhizophora Mangle
653 $aEndophytic bacteria
653 $aIAA
653 $aPhosphorus and plant growth promoting bacteria
700 1 $aDOURADO, M. N.
700 1 $aALMEIDA, J. R. de
700 1 $aLACAVA, P. T.
700 1 $aNAVE, A.
700 1 $aMELO, I. S. de
700 1 $aAZEVEDO, J. L. de
700 1 $aQUECINE, M. C.
773 $tBrazilian Journal of Microbiology$gv. 49, n. 1, p. 59-66, 2018.
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Embrapa Meio Ambiente (CNPMA) |
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| 1. |  | CASTRO, R. A.; DOURADO, M. N.; ALMEIDA, J. R. de; LACAVA, P. T.; NAVE, A.; MELO, I. S. de; AZEVEDO, J. L. de; QUECINE, M. C. Mangrove endophyte promotes reforestation tree (Acacia polyphylla) growth. Brazilian Journal of Microbiology, v. 49, n. 1, p. 59-66, 2018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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