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Effects of Needle-stick Injuries on Cell Death Nearby the Wound and the Infection of Penicillium expansion on Apple(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年21期
Page:
139-142
Research Field:
Publishing date:

Info

Title:
Effects of Needle-stick Injuries on Cell Death Nearby the Wound and the Infection of Penicillium expansion on Apple
Author(s):
WANG Xiang-yang; PAN Yan; WANG Hong-yan; LV Li
Department of Food Science and Technology，Zhejiang Gongshang University，Hangzhou，Zhejiang 310035
Keywords:
apple; needle-stick injury; Penicillium expansion; cell death; decay
PACS:
S 661.1
DOI:
-
Abstract:
Taking ‘Red Fuji’ as material,in order to finding out the influence of needle-stick injuries on the wound decay of apple，different apertures of needles were used to acupuncture apples.After that，they were inoculated with P.expansion and placed at room temperature and low temperature.After 30 days，cell death layers nearby the wound，death radius and decay rate were detected.The results showed that needle-stick injuries would gradually lead to a few layers of cell death nearby the wound.Cell death layers nearby the wound caused by large aperture needles were far more than that by small ones.At room temperature and low temperature，cell death layers nearby the wound increased rapidly in the prophase of acupuncture，and increased less in the late stage of acupuncture and kept no spread.Low temperature had a small inhibition to cell death nearby the wound.At room temperature，cell death layers of wound caused by large aperture needles were significantly increased after inoculating with P.expansion，but it didn’t influence significantly on wound caused by small aperture needles.The regularity of lesion diameter and decay rate were basically the same as cell death layers nearby the wound.The decay rate of wound caused by large aperture needles and inoculated with P.expansion reached above 80% after 5 days.However，wound caused by small aperture needles didn’t decay no matter they were at room temperature or low temperature，or even inoculated with P.expansion，which indicated that acupuncture aperture has a significant influence on the decay of apple and its critical size which could cause severe decay was between 0.50 mm and 1.00 mm.

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Last Update: 2014-08-27