CAJ | 학술논문

以中国兰春剑‘隆昌素’正常绿色组培苗为对照，对它的叶色黄化突变体的光合参数、光响应曲线及模拟参数、荧光动力学参数、CO2响应曲线进行了测定，试验结果表明突变体的净光合速率（Pn）、气孔导度（Gs）、蒸腾速率（Tr）均低于对照，胞间二氧化碳浓度（Ci）高于对照。叶绿素荧光动力学分析结果表明，叶色黄化突变体的最大荧光产量（Fm）较低，其 Fv ／Fm、ΦPSⅡ和 qP 均高于突变亲本，这表明叶色黄化突变体具有较高的光能捕获效率和转换效率。叶色黄化突变体的暗呼吸速率、表观量子效率和羧化效率都低于突变亲本，光呼吸速率也是低于突变亲本的。
이중국란춘검‘륭창소’정상록색조배묘위대조，대타적협색황화돌변체적광합삼수、광향응곡선급모의삼수、형광동역학삼수、CO2향응곡선진행료측정，시험결과표명돌변체적정광합속솔（Pn）、기공도도（Gs）、증등속솔（Tr）균저우대조，포간이양화탄농도（Ci）고우대조。협록소형광동역학분석결과표명，협색황화돌변체적최대형광산량（Fm）교저，기 Fv ／Fm、ΦPSⅡ화 qP 균고우돌변친본，저표명협색황화돌변체구유교고적광능포획효솔화전환효솔。협색황화돌변체적암호흡속솔、표관양자효솔화최화효솔도저우돌변친본，광호흡속솔야시저우돌변친본적。
The normal green Chinese orchid Cymbidium ‘longcangsu’in tissue culture was served as control group,we measured the photosynthetic parameters,light response curve and the simulation parameters,fluores-cence induction kinetic parameters,CO2 -response curve of the aurea mutant,the result showed that the net photosynthetic rate(Pn),stomatal conductance(Gs)and transpiration rate(Tr)were lower in the mutants, with higher in-tercellular CO2 concentration (Ci).Chlorophyll fluorescence showed that Fm of the aurea mu-tant were lower than control.Compared with control,the aurea mutants displayed higher optional maximal pho-tochemical efficiency of PS II (Fv /Fm),actual photo-chemical efficiency of PSⅡ(ΦPSⅡ),and photochemi-cal quenching (qP),suggesting that the mutants have higher light energy cap-ture and conversion efficiencies as well as the electron transport efficiency.Also the aurea mutant have lower dark respiration rate,apparent quantum yield,cargoxylation efficiency and photorespiratory rate than control.