| 紫外光（UV-C）处理对库尔勒香梨采后病斑扩展和抗病性的影响 |
| |
| 引用本文： | 李学文,廖亮,黄玲,叶强,韩江.紫外光（UV-C）处理对库尔勒香梨采后病斑扩展和抗病性的影响[J].新疆农业大学学报,2014(2):159-163. |
| |
| 作者姓名： | 李学文 廖亮 黄玲 叶强 韩江 |
| |
| 作者单位： | 新疆农业大学食品科学学院,乌鲁木齐,830052 |
| |
| 基金项目： | 新疆维吾尔自治区科技支疆项目（201191144）;“十二五”农村领域国家科技计划课题（2011BAD27801） |
| |
| 摘 要： | 以库尔勒香梨为材料,用紫外光（UV-C）照射处理,接5交链孢（Alternaria altetnata）,研究 UV-C 处理对病斑扩展和香梨抗病性的影响.香梨采后用7.5 kJ/m2的 UV-C照射39 min,处理24 h 后,接5交链孢（A．al-ternata）,贮藏于低温条件下（-1℃,相对湿度95％）,测定A．alternata 病斑直径及果实抗性相关的酶活性.结果表明,UV-C处理可显著降低果实损伤接5 A．alternata 的发病率及病斑扩展直径（P ＜0.05）,提高果实过氧化物酶（POD）、苯丙氨酸解氨酶（PAL）的活性,抑制几丁质酶（CHT）和β-1,3葡聚糖酶（GLU）活性的下降,显著提高果实总酚含＆lt;（P ＜0.05）.UV-C处理可提高香梨采后果实抗病相关酶的活性,抑制果实黑斑病的发展.
|
| 关 键 词： | 库尔勒香梨 病斑 抗病性 |
Effects of UV-C on Lesion Spread and Disease Resistance of Postharvest Fragrant Pear |
| |
| LI Xue-wen,LIAO liang,HUANG Ling,YE Qiang,HAN Jiang.Effects of UV-C on Lesion Spread and Disease Resistance of Postharvest Fragrant Pear[J].Journal of Xinjiang Agricultural University,2014(2):159-163. |
| |
| Authors: | LI Xue-wen LIAO liang HUANG Ling YE Qiang HAN Jiang |
| |
| Institution: | (College of Food Science,Xinjiang Agricultural Univesity, Urumqi 830052,China) |
| |
| Abstract: | Frangrant pear fruit （Pyresbretschnei deri Rehd）were used as test material to study the effect of ultraviolet-C （UV-C）light treatment on the spreading of postharvest disease spot and activities of dis-ease resisrance enzymes in postharvest fragrant pear fruit during cold storage.Fragrant pear fruits were ir-radiated with UV-C at 7.5 kJ/m2 for 39 min,and inoculated with Alternaria altetnata at 24 h after treat-ment,the diamiter of disease spot and the activities of enzymes related with the disease resistance of the fragrant pear fruit were determined.The result showed that UV-C treatment significantily decrease （P ＆lt;0.05）the lesion diameter and disease occurring related with inculation injure at cold storage and increase ac-tivities of the peroxidase （POD）and phenylalanine ammonia-lyase （PAL）,inhibit the decrease of chitinase （CHT）and glucanase （GLU）activities.Furthermor,UV-C enhanced the total phenol content.Conclusion showed that UV-C treatment can increase the activities of postharvest fragrant pear related with enzyme and can enhance lesion spreading. |
| |
| Keywords: | UV-C Ultraviolet light-C Pyresbretschnei deri Rehd lesion disease resistance |
| 本文献已被 维普 等数据库收录！ |
|
