Identification of a lytic Gram- bacterial strain showing appreciable antagonistic activity towards a broad range of fungal species. (Abstract in rivista)

Type
Label
  • Identification of a lytic Gram- bacterial strain showing appreciable antagonistic activity towards a broad range of fungal species. (Abstract in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Alternative label
  • CAPPIO V., PUOPOLO G., BATTAGLIA V., RAIO A., ZOINA A. (2007)
    Identification of a lytic Gram- bacterial strain showing appreciable antagonistic activity towards a broad range of fungal species.
    in SIPaV XIV National Meeting, Perugia, 2007
    (literal)
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  • CAPPIO V., PUOPOLO G., BATTAGLIA V., RAIO A., ZOINA A. (literal)
Convegno
  • SIPaV XIV National Meeting (literal)
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  • Perugia (literal)
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  • Journal of Plant Pathology, 89(3, Supplement), S13. SIPaV XIV National Meeting, Perugia, 19-21 September 2007. (literal)
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  • The production of lytic enzymes such as chitinases, proteases and lipases is often associated with the ability of several biological control agents to inhibit the development of phytopathogenic fungi. A Gram-negative bacterial isolate named PG4, recovered from tobacco rhizosphere, showed high lipase, protease and chitinolytic activities in vitro. PG4 was identified by using Biolog Test and the analysis of its 16S rDNA sequence. On the basis of the latter test, bacterial isolate PG4 was identified as belonging to the Lysobacter genus, a group of a-proteobacteria related to the family Xanthomonadaceae. 16S rDNA sequence of strain PG4 clustered with the related sequences of Lysobacter antibioticus and L. gummosus. However, the Biolog Test failed to give a precise identification as no Lysobacter species has been included in Biolog Databases. Lysobacter sp. strain PG4 was evaluated in vitro against a broad range of fungal isolates including beneficial, saprophytic and phytopathogenic species. In these tests strain PG4 showed a high inhibitory activity that can be attributed to the production of diffusible antibiotic compounds. The attitude to control Rhizoctonia solani, Fusarium oxysporum f. sp. lycopersici and F. oxyxporum. f. sp. radicis lycopersici on tomato plantlets was assessed by using a predictive in vivo approach. In these trials, strain PG4 reduced significantly disease severity in all the cases and had a stimulatory effect on root growth. These preliminary results showed that Lysobacter sp. strain PG4 represents a new potential biological control agent able to counteract phytopathogenic fungi responsible for important tomato diseases. (literal)
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  • -Puopolo G., Zoina A., ARBOPAVE, Università di Napoli “Federico II”, Portici (NA), Italy -Raio A., CNR, Istituto per la Protezione delle Piante, Sez. di Firenze, Italy (literal)
Titolo
  • Identification of a lytic Gram- bacterial strain showing appreciable antagonistic activity towards a broad range of fungal species. (literal)
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