摘要
低温弱光胁迫下黄瓜叶片的最大光化学效率 (Fv/Fm)和实际光化学效率 (Fv /Fm )急剧下降 ,而酸模叶片的Fv/Fm和ФPSII只轻微下降。低温处理后 ,酸模PG饱和脂肪酸含量下降 ,有利于提高膜的稳定性 ;Trans 3 16∶1含量下降程度不大 ,LHCⅡ寡聚体解聚程度不严重 。
During low temperature and weak light stress,Fv/Fm and ФPSII in Rumex leave s were higher than that in cucumber leaves.Content of saturated fatty acids of P G in Rumex leaves decreased under low temperature and weak light,which is be nefited to enhance membrane stability under low temperature.Trans-3-16∶1 in Rumex leaves decreased less than in cucumber under stress,indicating the sli ght degradation of LHCII oligmer.This might be important for Rumex to mainta in higher photochemical activity under low temperature.
出处
《园艺学报》
CAS
CSCD
北大核心
2003年第5期595-597,共3页
Acta Horticulturae Sinica
基金
国家重点基础研究发展规划项目 (G19980 10 10 0 )
国家自然科学基金项目 (3 0 0 70 458)
山东省自然科学基金项目 (Q99D10 )
