Isolation of micropropagated strawberry endophytic bacteria and assessment of their potential for plant growth promotion

Autor: Fernando Dini Andreote, Itamar Soares de Melo, Manoel Araújo Teixeira, Welington Luiz Araújo, Francisco Eduardo de Carvalho Costa, Paulo Teixeira Lacava, Laura de Castro Assumpção, Armando Cavalcante Franco Dias, João Lúcio de Azevedo
Přispěvatelé: ARMANDO C. F. DIAS, ICB-USP, FRANCISCO EDUARDO DE CARVALHO COSTA, UNIVAS, FERNANDO DINI ANDREOTE, Bolsista- Embrapa Meio Ambiente, PAULO T. LACAVA, ESALQ-USP, MANOEL ARAÚJO TEIXEIRA, UNIVAS, LAURA C. ASSUMPÇÃO, Bolsista - Embrapa Meio Ambiente, JOÃO LÚCIO DE AZEVEDO, ESALQ-USP, ITAMAR SOARES DE MELO, CNPMA.
Rok vydání: 2008
Předmět:
Zdroj: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA-Alice)
Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
ISSN: 1573-0972
0959-3993
Popis: Twenty endophytic bacteria were isolated from the meristematic tissues of three varieties of strawberry cultivated in vitro, and further identified, by FAME profile, into the genera Bacillus and Sphingopyxis. The strains were also characterized according to indole acetic acid production, phosphate solubilization and potential for plant growth promotion. Results showed that 15 strains produced high levels of IAA and all 20 showed potential for solubilizing inorganic phosphate. Plant growth promotion evaluated under greenhouse conditions revealed the ability of the strains to enhance the root number, length and dry weight and also the leaf number, petiole length and dry weight of the aerial portion. Seven Bacillus spp. strains promoted root development and one strain of Sphingopyxis sp. promoted the development of plant shoots. The plant growth promotion showed to be correlated to IAA production and phosphate solubilization. The data also suggested that bacterial effects could potentially be harnessed to promote plant growth during seedling acclimatization in strawberry Made available in DSpace on 2016-06-03T12:40:56Z (GMT). No. of bitstreams: 1 2009AP08.pdf: 238638 bytes, checksum: bf5e5ec1550b494d48322b3fe4a928f3 (MD5) Previous issue date: 2009-11-30
Databáze: OpenAIRE
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