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1.低温障害机理果菜类蔬菜是低温敏感性植物,生育适温为20～25℃,在10℃左右,就发生种种生育异常,收获的果菜也如此。如把黄瓜、茄子、番茄贮藏在5℃以下温度中,就发生锈斑或后熟不良等。这类植物产生低温应力的机理,首先是低温影响细胞组织,发生由柔软的液晶构造到固相凝胶体构造的物理性过渡、出现三种趋向:一、原形质流动如停止,ATP的供给就减少。二、细胞的膜结合酵素活性化能量
1. Low-temperature disruptive mechanism Fruits and vegetables are low-temperature sensitive plants, fertility suitable temperature is 20 ~ 25 ℃, at about 10 ℃, all kinds of abnormalities in fertility, fruit and vegetable harvest so. If the cucumber, eggplant, tomato stored at temperatures below 5 ℃, the occurrence of rust or poor after-ripening. These plants produce low temperature stress mechanism, the first is the low temperature affect the cell tissue, from the soft liquid crystal structure to the physical transition of the solid gel structure, there are three trends: First, the prototype flow stops, ATP supply Reduce. Second, the membrane-bound enzymes of cells activate energy