外源NO处理对采后芒果抗冷性的影响  

The Effect of NO on Cold Tolerance in Postharvest Mango Fruit(Mangnifera indica L.)

作　　者：范蓓[1] 杨杨[2,3] 王锋[1] 董元元[1] 李庆鹏[1] 李伟明[1] 王凤忠[1] 

机构地区：[1]中国农业科学院农产品加工研究所,北京100193 [2]中国农业大学食品科学与营养工程学院,北京100083 [3]内蒙古农业大学食品科学与工程学院,内蒙古呼和浩特010018

出　　处：《核农学报》2013年第6期800-804,共5页Journal of Nuclear Agricultural Sciences

基　　金：中国农业科学院基本科研业务费项目(0032012018)

摘　　要：为了探讨解决冷敏型芒果(Mangifera indica L.)在冷藏过程中的冷害问题,采用0.08mmol.L-1一氧化氮(NO)供体硝普钠(SNP)溶液处理采后青芒果果实,于2℃下冷藏12d,观测了冷害指数、细胞膜透性、丙二醛(MDA)含量和呼吸强度。结果表明,外源NO处理能显著降低采后芒果果实的冷害程度:与对照组相比,处理后芒果果实冷害发生推迟,冷藏8d和12d后冷害指数分别降低68.5%和28.2%,细胞膜透性、MDA含量等冷害相关指标水平显著降低。冷藏前用外源NO处理可以提高芒果冷藏中的抗冷性,减轻冷害发生。To explore the chilling injury controlling method in postharvest mango（Mangifera indica L.） fruit which is a typical chilling sensitive plant,0.08mmol·L-1 nitric oxide（NO） donor SNP was used to treat green mango fruit before cold storage.Chilling injury,cell membrane permeability,malondialdehyde content and respiratory intensity were measured during cold storage at 2℃.The results showed that exogenous NO treatment significantly reduced chilling injury degree in postharvest mango fruit： compared with the control,chilling injury was delayed in treated group,the chilling injury index on the 8th and 12th day decreased by 68.5% and 28.2% respectively.Moreover,lower cell membrane permeability,MDA content were observed in treated group.It was shown that treatment with exogenous NO before cold storage is an effective way to enhance cold tolerance of mango fruits in cold storage and reduce chilling injury.

关 键 词：芒果 冷害 一氧化氮 抗冷性 

分 类 号：S667.7[农业科学—果树学]