Journal
NEW ZEALAND JOURNAL OF CROP AND HORTICULTURAL SCIENCE
Volume 45, Issue 1, Pages 75-79Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/01140671.2016.1244086
Keywords
Black rot; kiwifruit; Nigrospora sp; postharvest disease; pathogenicity
Categories
Funding
- Technology Development Program for Agriculture and Forestry, Ministry for Food, Agriculture, Forestry and Fisheries, Republic of Korea [114095-3]
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In February 2016 in Sacheon, South Korea, symptoms similar to black rot' symptoms caused by Nigrospora sp. were observed in kiwifruit stored between 0 degrees C and 1 degrees C. Symptoms included the presence of sunken lesions on the fruit pericarp, which were watery and black in the centre. The causal agent was identified as Nigrospora sp. by morphological characteristics and by sequencing the internal transcribed spacer region of rDNA. The Koch's postulate was confirmed by inoculating kiwifruit with the pathogen. After two weeks at 16 degrees C, the pathogen was re-isolated from inoculated lesions and confirmed to have genetic characteristics similar to the strain used for inoculation. To our knowledge, this is the first report of kiwifruit postharvest black rot caused by Nigrospora sp. and this information will aid in control of postharvest disease in the kiwifruit industry.
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