Data/hora: 19/06/2024 17:07:31

Biblioteca(s): | Embrapa Meio Ambiente.
Data corrente: | 19/10/2012
Data da última atualização: | 19/10/2012
Autoria: | FARIA, D. C.; DIAS, A. C. F.; MELO, I. S. de; COSTA, F. E. C.
Afiliação: | DEISE CRISTINA FARIA, UNIVAS; ARMANDO CAVALCANTE FRANCO DIAS, CENA-USP; ITAMAR SOARES DE MELO, CNPMA; FRANCISCO EDUARDO DE CARVALHO COSTA, INATEL.
Título: | Endophytic bacteria isolated from orchid and their potential to promote plant growth.
Ano de publicação: | 2012
Fonte/Imprenta: | World Journal of Microbiology & Biotechnology, Oxford, 2012.
Idioma: | Inglês
Conteúdo: | Abstract: Twelve endophytic bacteria were isolated from the meristem of in vitro Cymbidium eburneum orchid, and screened according to indole yield quantified by colorimetric assay, in vitro phosphate solubilization, and potential for plant growth promotion under greenhouse conditions. Eight strains with positive results were classified into the genus Paenibacillus by FAME profile, and evaluated for their ability to increase survival and promote the growth of in vitro germinated Cattleya loddigesii seedlings during the acclimatization process. The obtained results showed that all strains produced detectable indole levels and did not exhibit potential for solubilizing inorganic phosphate. Particularly, an increase of the total biomass and number of leaves was observed. Two strains of Paenibacillus macerans promoted plant growth under greenhouse conditions. None of the treatments had a deleterious effect on growth of inoculated plants. These results suggest that these bacterial effects could be potentially useful to promote plant growth during seedling acclimatization in orchid species other than the species of origin.
Palavras-Chave: | Auxin production; In vitro cultivation; Phosphate solubilization.
Thesaurus Nal: | Cattleya loddigesii.
Categoria do assunto: | G Melhoramento Genético
Registro original: | Embrapa Meio Ambiente (CNPMA)
Exemplares: | CNPMA - (11434-1) - UPC - AP - DD -  -  -  - DIS