Temperature can strongly influence the biocontrol efficacy of Lysobacter strains when used against phytopathogens. We investigated the influence of temperature on physiological characteristics of L. capsici AZ78 associated with biocontrol. L. capsici AZ78 effectively colonized tomato leaves at 15 and 25 °C while exposure to 35 and 37 °C was highly detrimental. Accordingly, Phytophthora infestans attacks on tomato leaves were controlled when L. capsici AZ78 was pre-exposed to 15 and 25 °C for 24 h, conversely, exposure to 35 °C drastically reduced the biocontrol efficacy of L. capsici AZ78 probably by impairing anti-oomycete and proteolytic activity. Furthermore, the exposure to 15 °C made the L. capsici AZ78 cells more resistant to UV light and copper ions compared to 25 and 35 °C. These findings give an indication on the best temperature range for the future use of biofungicides based on L. capsici AZ78 cells.

Puopolo, G.; Palmieri, M.C.; Giovannini, O.; Pertot, I. (2015). Impact of temperature on the survival and the biocontrol efficacy of Lysobacter capsici AZ78 against Phytophthora infestans. BIOCONTROL, 60 (5): 681-689. doi: 10.1007/s10526-015-9672-5 handle: http://hdl.handle.net/10449/27540

Impact of temperature on the survival and the biocontrol efficacy of Lysobacter capsici AZ78 against Phytophthora infestans

Puopolo, Gerardo;Palmieri, Maria Cristina;Giovannini, Oscar;Pertot, Ilaria
2015-01-01

Abstract

Temperature can strongly influence the biocontrol efficacy of Lysobacter strains when used against phytopathogens. We investigated the influence of temperature on physiological characteristics of L. capsici AZ78 associated with biocontrol. L. capsici AZ78 effectively colonized tomato leaves at 15 and 25 °C while exposure to 35 and 37 °C was highly detrimental. Accordingly, Phytophthora infestans attacks on tomato leaves were controlled when L. capsici AZ78 was pre-exposed to 15 and 25 °C for 24 h, conversely, exposure to 35 °C drastically reduced the biocontrol efficacy of L. capsici AZ78 probably by impairing anti-oomycete and proteolytic activity. Furthermore, the exposure to 15 °C made the L. capsici AZ78 cells more resistant to UV light and copper ions compared to 25 and 35 °C. These findings give an indication on the best temperature range for the future use of biofungicides based on L. capsici AZ78 cells.
Biological control
Temperature
Lysobacter capsici
Phytophthora infestans
Settore AGR/12 - PATOLOGIA VEGETALE
2015
Puopolo, G.; Palmieri, M.C.; Giovannini, O.; Pertot, I. (2015). Impact of temperature on the survival and the biocontrol efficacy of Lysobacter capsici AZ78 against Phytophthora infestans. BIOCONTROL, 60 (5): 681-689. doi: 10.1007/s10526-015-9672-5 handle: http://hdl.handle.net/10449/27540
File in questo prodotto:
File Dimensione Formato  
2015 B Puopolo.pdf

solo utenti autorizzati

Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 629.62 kB
Formato Adobe PDF
629.62 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10449/27540
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 13
  • ???jsp.display-item.citation.isi??? 13
social impact