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Sequential application of NaHCO3, CaCl2 and Candida oleophila (isolate 13L) affects significantly Penicillum expansum growth and the infection degree in apples.
MedLine Citation:
PMID:  22702195     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
The employment of biocontrol agents to restrain postharvest pathogens is an encouraging approach, although, efficacy and consistency are still below those of synthetic pesticides. Up to date, the 'integrated control strategy' seems to be the most promising way to overcome this gap. Here, we report the feasibility to control postharvest decay caused by Penicillium expansum in apples by a 2 min, single or sequential, immersion in water with an antagonistic yeast (Candida oleophila, isolate '13L'), 2% NaHCO3 (SBC) or 1% CaCl2. The treatments were carried out, on appels cv 'Miali' either un-wounded, wounded or wound-pathogen inoculated and then stored at 2 degrees C for 30 d followed by a 6 d simulated marketing period at 20 degrees C or alternatively stored only for 7 d at 20 degrees C. As a general role, the best results were attained when CaCl2 was applied with the yeast or when preceded by the SBC treatment. When the wounding and inoculation took place 24 h before the treatment, the latter application sequence of the two salts was three times more effective compared to the treatment with the sole antagonist, and one time when performed 24 h after the treatment. Interestingly, apples immersed in the sole 2% SBC solution had the highest percentage of decay during storage and when inoculated before moving to the simulated marketing period at 20 degrees C.
Authors:
M G Molinu; G Pani; T Venditti; A Dore; G Ladu; G D'Hallewin
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Communications in agricultural and applied biological sciences     Volume:  76     ISSN:  1379-1176     ISO Abbreviation:  Commun. Agric. Appl. Biol. Sci.     Publication Date:  2011  
Date Detail:
Created Date:  2012-06-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101200320     Medline TA:  Commun Agric Appl Biol Sci     Country:  Belgium    
Other Details:
Languages:  eng     Pagination:  743-50     Citation Subset:  IM    
Affiliation:
CNR - ISPA, Traversa La Crucca, 3 - Loc. Baldinca, 07040 Sassari, Italy. mariagiovanna.molinu@ispa.cnr.it
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