Effect of benzoic acid and aspirin on chilling tolerance and photosynthesis in young maize plants
Effect of benzoic acid and aspirin on chilling tolerance and photosynthesis in young maize plants
复制标题
DOI：
--
复制
发表时间：
2000-06
期刊：
影响因子：
0.6
通讯作者：
T. Janda;G. Szalai;Z. Antunovics;E. Horváth;E. Páldi
中科院分区：
文献类型：
--
作者：
T. Janda;G. Szalai;Z. Antunovics;E. Horváth;E. Páldi
最近有报道称，水杨酸（SA）处理可以保护玉米幼苗免受低温胁迫（JANDA et al. 1999）。本研究表明，在正常生长温度下，某些相关化合物（苯甲酸、乙酰SA）也可以减轻玉米幼苗的冷害症状，但这些化合物可能对植株造成严重的伤害。22/20℃苯甲酸或阿司匹林处理1 d后，净光合作用、气孔电导率和蒸腾作用均下降。这些化合物可能会降低玉米幼苗的生长速度，这表明抗氧化酶活性的改变可能是这些化合物诱导玉米抗寒性增强的原因之一。
It was recently reported that salicylic acid (SA) treatment may provide protection against low temperature stress in young maize plants (JANDA et al. 1999). In the present study it is shown that certain related compounds (benzoic acid, acetyl SA) may also reduce the symptoms of chilling injury in young maize plants At normal growth temperature, however, these compounds may cause severe damage to the plants. There is a decrease in net photosynthesis stomatal conductivity and transpiration after 1 day of benzoic acid or aspirin treatment at 22/20°C. These compounds may cause a decrease in the growth rate in young developing maize seedlings It is suggested that an alteration in the activity of antioxidant enzymes may play a role in the increased chilling tolerance induced by these compounds.