Pesticidi i fitomedicina 2018 Volume 33, Issue 2, Pages: 109-117
https://doi.org/10.2298/PIF1802109T
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Effects of 1-MCP and dynamic controlled atmosphere on apple fruit rot caused by Fusarium avenaceum
Tarlanović Jelena (Faculty of Agriculture, Novi Sad)
Petreš Mladen (Faculty of Agriculture, Novi Sad)
Grahovac Mila (Faculty of Agriculture, Novi Sad)
Milić Biserka (Faculty of Agriculture, Novi Sad)
Magazin Nenad (Faculty of Agriculture, Novi Sad)
Hrustić Jovana (Institute of Pesticides and Environmental Protection, Belgrade)
Mihajlović Milica (Institute of Pesticides and Environmental Protection, Belgrade)
Fusarium species are increasingly detected as the causal agents of decay of
stored apple fruits. Fusarium avenaceum is particularly significant due to
its predominant occurrence among Fusarium species in stored apple fruits and
its ability to produce mycotoxins. Treatments with 1-methylcyclopropene
(1-MCP) and different storage conditions affect the aggressiveness of F.
avenaceum and development of fungal-caused decay in stored apple fruits. In
this study, apple fruits (cv. ‘Granny Smith’) were treated with 1-MCP, and
artificially inoculated with F. avenaceum. The isolate used for inoculation,
originating from apple fruit, was identified based on morphological
characteristics and by polymerase chain reaction (PCR) using a
species-specific primer pair (FA-ITSF and FA-ITSR) for F. avenaceum. After
inoculation, treated and untreated fruits were stored at room temperature and
cold-stored under dynamic controlled atmosphere (DCA). Diameters of necrotic
lesions were measured after 7, 14 and 21 days of incubation on fruits stored
at room temperature, while necrosis diameters on DCA-stored fruits were
measured immediately at the end of storage period (143 days), and after 7, 14
and 21 days of additional incubation at room temperature. The results show
that treatment with 1-MCP inhibits the development of F. avenaceum on apple
fruits during storage under DCA. However, after storage, i.e. during
incubation at room temperature, no significant difference between
1-MCP-treated and untreated fruits was observed. On fruits stored at room
temperature only, no difference between 1-MCP-treated and untreated fruits
was observed. However, 1-MCP-treated fruits stored at room temperature only
developed significantly smaller necrosis lesions compared to 1-MCP-treated
and DCA stored fruits. It infers that both 1-MCP treatment and DCA storage
inhibit fungal decay caused by F. avenaceum on apple fruits. However, the
effects do not persist after storage.
Keywords: 1-methylcyclopropene: ethylene inhibitor, dynamic controlled atmosphere, storage, apple fruit rot
Project of the Serbian Ministry of
Education, Science and Technological Development, Grant no. III-46008