Effects of exogenous spermidine on photosynthetic characteristics of apple leaf
2005
Zhang Yuan, Xu Jizhong, Chen Haijiang
Chinese. 以富士、嘎啦两苹果品种1年生组培苗为试材,研究了不同浓度的亚精胺(Spd)对其光合特性的影响。结果表明:不同浓度的亚精胺效果不同,在两品种间的反应也有差异,1×10-5mol/L的亚精胺对富士效果最明显,而嘎啦则是1×10-4mol/L的亚精胺效果最佳,两种处理均表现为明显提高了两品种的净光合速率(Pn)及气孔导度(Gs),降低了胞间CO2浓度(Ci),同时也提高了两品种的PSⅡ原初光能转换效率(Fv/Fm),对初始荧光(Fo)的影响二者有所差异。
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