欢迎访问《生态学杂志》官方网站,今天是 分享到:

生态学杂志 ›› 2009, Vol. 28 ›› Issue (10): 1966-1970.

• 研究报告 • 上一篇    下一篇

樱桃属植物叶片浸提液对东北山樱光合及叶绿素荧光参数的影响

吕德国1,2;王志鑫1;秦嗣军1,2**;马怀宇1,2   

  1. 1沈阳农业大学园艺学院,沈阳 110161;2北方果树育种与生理生态研究所,沈阳 110161
  • 出版日期:2009-11-10 发布日期:2009-11-10

Effects of Cerasus leaf aqueous extracts on the photosynthesis and chlorophyll fluorescence of Cerasus sachalinensis.

 LV De-Guo1,2; |WANG Zhi-Xin1; |QIN Si-Jun1,2** MA Huai-Yu1,2   

  1. 1College of Horticulture, Shenyang Agricultural University, Shenyang 110161, China,2Research Laboratory for Breeding and Ecophysiology of Northern Fruit Tree,Shenyang 110161, China
  • Online:2009-11-10 Published:2009-11-10

摘要: 以东北山樱(Cerasus sachalinensis)幼苗为试材,研究7种樱桃属植物叶片浸提液对其光合生理参数的影响。结果表明,东北山樱、草原樱桃(C. fruticosa)、大青叶(C. pseudocerasus)、考特(Colt)和红灯(C. avium)叶片浸提液处理的东北山樱叶绿素a含量、叶绿素a/b的比值、净光合速率(Pn)、气孔导度(Gs)、胞间CO2浓度(Ci)、PSⅡ光化学效率(Fv/Fm)、PSⅡ电子传递量子产量(Φ PSⅡ)较对照有不同程度的降低,类胡萝卜素含量、初始荧光(F0)、非光化学猝灭系数(qN)增加,说明东北山樱、草原樱桃、大青叶、考特和红灯叶片浸提液处理降低了东北山樱幼苗叶片光合机能,抑制了植株的生长发育。其中,东北山樱叶片浸提液处理下降幅度最为明显,表现出较强的自毒作用。而吉赛拉(Gisela)和马哈利(C. mahaleb)叶片浸提液处理作用相反,明显改善了东北山樱幼苗叶片的光合机能,表现出一定的促进作用。

关键词: 羊草草地, 土壤, 全铁, 有效铁

Abstract: Cerasus sachalinensis seedlings were used as test materials to study their photosynthesis and chlorophyll fluorescence under effects of seven Cerasus species leaf aqueous extracts. After treated with the aqueous extracts of C.sachalinensis, C. fruticosa, C. pseudocerasus, Colt, and C. avium, the se
edlings leaf chlorophyll a content, chlorophyll a/b ratio, net photosynthetic rate(Pn), stomatal conductance (Gs), intercellular CO2 concentration (Ci), maximum photochemical efficiency of PSⅡ (Fv/Fm), and quantum efficiency of noncyclic electron transport of PSⅡ (ΦPSⅡ) decreased, while the carotenoid content, F0, and nonphotochemical quenching coefficient (qN)  increased, illustrating that the leaf aqueous extracts of these five Cerasus species had negative effects on the photosynthesis of  C. sachalinensis. Among the five aqueous extracts, the extract of C. sachalinensis had more obvious impact, suggesting its stronger autotoxicity. On the contrary, the aqueous extracts of Gisela and C. mahaleb had definite promotion effects on the photosynthesis of C.sachalinensis.

Key words: Leymus chinensis grassland, Soil, Total iron, Available iron