| 冷激结合水杨酸处理对黄瓜果实冷害及能量和脯氨酸代谢的影响 |
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| 引用本文： | 姜玉,张苗,汤静,金鹏,郑永华. 冷激结合水杨酸处理对黄瓜果实冷害及能量和脯氨酸代谢的影响[J]. 核农学报, 2021, 35(1): 128-137. DOI: 10.11869/j.issn.100-8551.2021.01.0128 |
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| 作者姓名： | 姜玉 张苗 汤静 金鹏 郑永华 |
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| 作者单位： | 南京农业大学食品科技学院,江苏南京210095;南京农业大学食品科技学院,江苏南京210095;南京农业大学食品科技学院,江苏南京210095;南京农业大学食品科技学院,江苏南京210095;南京农业大学食品科技学院,江苏南京210095 |
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| 基金项目： | “十三五”国家重点研发计划重点专项(2016YFD0400901)。 |
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| 摘 要： | 为探讨冷激结合水杨酸处理减轻黄瓜果实冷害的作用及其机理,本试验分别研究了冷激(0℃冰水混合物)、水杨酸(1 mmol·L-1)以及二者结合(含有1 mmol·L-1水杨酸的0℃冰水混合物)3种处理方式对黄瓜果实低温贮藏期间能量和脯氨酸代谢的影响.结果表明,冷激、水杨酸以及二者结合处理均能抑制黄瓜果实冷害程度、相对电导率...
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| 关 键 词： | 黄瓜 冷激 水杨酸 冷害 能量代谢 脯氨酸代谢 |
| 收稿时间： | 2019-07-17 |
Effects of Cold Shock Combined With Salicylic Acid Treatment on Chilling Injury,Energy and Proline Metabolism of Postharvest Cucumber Fruit |
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| JIANG Yu,ZHANG Miao,TANG Jing,JIN Peng,ZHENG Yonghua. Effects of Cold Shock Combined With Salicylic Acid Treatment on Chilling Injury,Energy and Proline Metabolism of Postharvest Cucumber Fruit[J]. Acta Agriculturae Nucleatae Sinica, 2021, 35(1): 128-137. DOI: 10.11869/j.issn.100-8551.2021.01.0128 |
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| Authors: | JIANG Yu ZHANG Miao TANG Jing JIN Peng ZHENG Yonghua |
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| Affiliation: | College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095 |
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| Abstract: | To investigate the mechanism of cold shock combined with salicylic acid treatment on chilling injury of cucumber fruit,the effects of cold shock(0℃ice-water),salicylic acid(1 mmol·L-1)and the combination of cold shock and salicylic acid(0℃ice-water containing 1 mmol·L-1salicylic acid)treatments on energy and proline metabolism in cucumber fruit stored at low temperature were studied,respectively.The results indicated that the treatments of cold shock,salicylic acid and cold shock combined with salicylic acid effectively alleviated the chilling injury,and inhibited the relative conductivity and the increase of malondialdehyde(MDA)content in cucumber fruit.In addition,these three treatments markedly increase the activities of Ca2+-ATPase,H+-ATPase,succinate dehydrogenase(SDH)and cytochrome C oxidase(CCO),retarded the decline of adenosine triphosphate(ATP)and adenosine diphosphate(ADP)content,inhibited the increase of adenosine monophosphate(AMP)content,and maintained higher energy charge compared with the control.The results also demonstrated that three treatments improvedΔ1-pyrroline-5-carboxylate synthetase(P5 CS)and ornithine-δ-aminotransferase(OAT)activities and inhibited proline dehydrogenase(PDH)activity,which promoted the accumulation of proline of cucumber fruit.And among these three treatments,the effiency of cold shock combined with salicylic acid treatment was the best.This study provides theoretical basis for alleviation of cucumber fruits. |
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| Keywords: | cucumber cold shock salicylic acid chilling injury energy metabolism proline metabolism |
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