RT Journal Article T1 Effect of volatile compounds produced by Bacillus strains on postharvest decay in citrus. A1 Arrebola-Díez, Eva María A1 Sivakumar, Dharini A1 Korsten, Lise K1 Cítricos - Almacenamiento - Enfermedades y daños K1 Agentes de control biológico de plagas AB The antifungal effects of volatile compounds produced by Bacillus strains; Bacillus subtilis PPCB001 orBacillus amyloliquefaciens PPCB004 and antagonist combination (PPCB001 + PPCB004) against Penicilliumdigitatum Sacc., Penicillium italicum Wehmer and Penicillium crustosum Thom isolates were investigatedin vitro and in vivo. The antagonists alone or in combination inhibited the radial mycelial growth of Penicilliumspp. in vitro. Among the three Penicillium isolates tested P. crustosum showed 73.3% of mycelialgrowth inhibition in presence of PPCB004. The antifungal effects of volatiles increased with increasingtime (days), and PPCB004 showed the highest inhibition of radial mycelial growth in P. crustosum onthe 10th day. The EC50 was 2.5 105 CFU ml 1 for PPCB001; 9.45 106 CFU ml 1 for PPCB004 and7.76 106 CFU ml 1 for PPCB001 + PPCB004. Antagonist PPCB004 incubated at 37 C for 24 h showedhigher inhibitory effect on spore germination and germ tube elongation in P. crustosum than all othertreatments. Although, PPCB001 produced a higher number of volatile compounds (21 different types)than PPC004 (8 different types), 3-hydroxy-2-butanone (acetoin) was the predominant ketone producedby both PPCB001 (45.98%) and PPCB004 (97.52%). Antagonist PPCB004 showed significant inhibition ondecay incidence and severity in Valencia, inoculated with P. crustosum and held at 25 C for 12 days. Theobservations indicated that B. amyloliquefaciens PPCB004 to control P. crustosum in postharvest systems. PB Elsevier YR 2009 FD 2009-11-27 LK https://hdl.handle.net/10630/31119 UL https://hdl.handle.net/10630/31119 LA eng NO Arrebola, E., Sivakumar, D., Korsten, L. 2010. Effect of volatile compounds produced by Bacillus strains on postharvest decay in citrus. 53(1):122-128 NO Política de acceso abierto tomada de: https://v2.sherpa.ac.uk/id/publication/11272 NO National Research Foundation, South Africa (South Africa – Argentine collaboration programme). DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 22 ene 2026