Data/hora: 29/06/2024 10:25:41

Biblioteca(s): 	Epagri-Sede.	
Data corrente: 	30/09/2014	
Data da última atualização: 	30/09/2014	
Autoria: 	PASSOS, J. F. M.; COSTA, P. B.; COSTA, M. D.; ZAFFARI, G. R.; NAVA, G.; BONETI, J. I.; OLIVEIRA, A. M. R.; PASSAGLIA, L. M. P.	
Título: 	Cultivable bacteria isolated from apple trees cultivated under different crop systems: diversity and antagonistic activity against Colletotrichum gloeosporioides.	
Ano de publicação: 	2014	
Fonte/Imprenta: 	Genetics and Molecular Biology, Ribeirão Preto, v. 37, n. 3, p. 560-572, 2014.	
Idioma: 	Português	
Conteúdo: 	This study evaluated the diversity of cultivable plant growth-promoting (PGP) bacteria associated with apple trees cultivated under different crop management systems and their antagonistic ability against Colletotrichum gloeosporioides. Samples of roots and rhizospheric soil from apple trees cultivated in organic and conventional orchards in southern Brazil were collected, together with soil samples from an area never used for agriculture (native field). Bacteria were identified at the genus level by PCR-RFLP and partial sequencing of the 16S rRNA, and were evaluated for some PGP abilities. The most abundant bacterial genera identified wereEnterobacter(27.7%),Pseudomonas(18.7%),Burkholderia(13.7%), andRahnella(12.3%). Sixty-nine isolates presented some antagonist activity against C. gloeosporioides. In a greenhouse experiment, five days after exposure to C. gloeosporioides,an average of 30% of the leaf area of plants inoculated with isolate 89 (identified asBurkholderiasp.) were infected, whereas 60 to 73% of the leaf area of untreated plants was affected by fungal attack. Our results allowed us to infer	
Palavras-Chave: 	antagonistic activity; apple tree; Colletotrichum gloeosporioides; plant growth-promoting bacteria.	
Categoria do assunto: 	--	
URL: 	http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_34692.pdf	
Registro original: 	Epagri-Sede (Epagri-Sede)	
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