受李痘病毒影响的李果实中的糖类和有机酸。
Sugars and organic acids in plum fruit affected by Plum pox virus.
作者信息
Usenik Valentina, Marn Mojca Virscek
机构信息
University of Ljubljana, Biotechnical Faculty, Department of Agronomy, Chair for Fruit, Wine and Vegetable Growing, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia.
Agricultural Institute of Slovenia, Plant Protection Department, Hacquetova 17, SI-1000 Ljubljana, Slovenia.
出版信息
J Sci Food Agric. 2017 May;97(7):2154-2158. doi: 10.1002/jsfa.8023. Epub 2016 Oct 5.
BACKGROUND
Plum pox virus (PPV) causes severe economic losses in stone fruit production, but little is known about its effect on plum fruit composition. In this study, the influence of PPV on sugars and organic acids was evaluated in a susceptible plum (Prunus domestica L.) cultivar.
RESULTS
PPV infection significantly affected the content and composition of sugars and organic acids. The composition of necrotic tissue was modified the most. A short-time infected tree yielded fruit with similar sugar composition to fruit from a healthy tree, but the decline of organic acids was faster. Prematurely ripened symptomatic fruit had reduced fruit weight and low sugar content.
CONCLUSION
Infected trees of the studied cultivar produce fruit of inferior quality. Fruits are not suitable for processing, especially when most of them exhibit visual symptoms of PPV infection. © 2016 Society of Chemical Industry.
背景
李痘病毒（PPV）在核果类水果生产中造成严重经济损失，但对其对李子果实成分的影响了解甚少。本研究评估了PPV对一个易感李子（欧洲李）品种中糖类和有机酸的影响。
结果
PPV感染显著影响了糖类和有机酸的含量及组成。坏死组织的组成变化最为明显。短期感染的树所结的果实，其糖组成与健康树的果实相似，但有机酸的下降速度更快。过早成熟的有症状果实重量减轻且含糖量低。
结论
所研究品种的感染树结出的果实质量较差。这些果实不适合加工，尤其是当大多数果实表现出PPV感染的视觉症状时。©2016化学工业协会。
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