摘要
以"佳粉15"和"粉红908"番茄为试材,分别采用热空气处理和多胺生物合成抑制剂(D-精氨酸和二环己胺)处理,然后于2℃(冷害温度)下贮藏。结果表明,热处理和2种多胺抑制剂处理都可以降低番茄的冷害指数和呼吸速率,抑制呼吸高峰的出现,并抑制多胺的合成。腐胺含量与冷害之间相关性分析的结果表明,多胺合成抑制剂结合热处理是通过改变果实腐胺的生物合成或分解代谢实现其减轻冷害作用的。
This paper investigated the effects of heat treatment and polyamine biosynthetic inhibitor treatments on chilling injury index and polyamine contents in chilled tomato.Two varieties of tomato (Lycopersicon esculentum Mill.),cv.'Jiafen 15' and 'Fenhong 908',were treated with D-arginine (ARG) or dicyclohexylamine (DCHA) followed by heat treatment (38℃ hot air for 2 days),then stored at 2℃.HOT (38℃ hot air for 2 days,with no polyamine inhibitors),D-ARG and DCHA could reduce chilling injury index,respiration rate,polyamine contents.The correlations of reduced chilling injury index with putrescines content were analyzed and it showed that polyamine biosynthetic inhibitor combined with heat treatments changed the metabolism of putrescines in tomato and thus alleviated chilling injury of the fruit.
出处
《西北植物学报》
CAS
CSCD
北大核心
2005年第5期962-967,共6页
Acta Botanica Boreali-Occidentalia Sinica
基金
北京市自然科学基金资助项目(6002003)
关键词
番茄
冷害
热处理
多胺
多胺生物合成抑制剂
tomato
chilling injury
heat treatment
polyamine
polyamine biosynthetic inhibitor
