选择马铃薯品种大西洋和甘农薯5号的悬浮细胞为研究对象，通过分析其在5 ℃、20 ℃及40 ℃环境下的细胞相对生长量、质膜离子渗漏率、细胞活力值、渗透调节物质质量分数、光合系统ⅡFv/Fm来阐明马铃薯在温度胁迫下的生理适应机制。结果表明，不同马铃薯品种对温度胁迫的适应性不同，环境温度为5 ℃时马铃薯悬浮细胞的生长状态最好。

The suspension cell of Atlantic and Gannong 5 cultivars are selected as the research object. Through the analysis in the 5 ℃ and 20 ℃ and 40 ℃ under the environment of relative cell growth， plasma membrane ion leakage rate， cell viability, osmolyte concentration， photosystem II Fv/Fm， To elucidate the physiological adaptation mechanism of potato under temperature stress. The result showed different potato cultivars had significantly different adjustment to temperature stress. The suspension cell of potato grew best when the temperature reached 5 ℃.

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甘肃省高等学校科研项目(2015A-067)；甘肃农业大学盛彤笙基金(GSAU-STS-1431)(GSAU-STS-1438)；甘肃省干旱生境作物学重点实验室开放基金(GSCS-2016-09)。