叶绿素荧光是光合作用研究的探针.ppt

感谢大家观看第64页,共64页，2024年2月25日，星期天Fig.3Responsesoftherelationshipbetween?PSIIand?CO2andPn-PFDcurvestochillingtreatmentunderirradianceandsubsequentrecovery.Bothchlorophyllaandnetphotosyntheticrateweremeasuredunder25?C.Subsequentrecoverywasconductedat25?Cunder100?molm-2s-1PFD.(A)Therelationshipbetween?PSIIand?CO2determinedinNA;(B)Pn-PFDcurvesdeterminedinNA;(C)Therelationshipbetween?PSIIand?CO2determinedinLOA;(D)Pn-PFDcurvesdeterminedinLOA.▲,CK;?,post-treatment;■,recoveryfor8hours;?,recoveryfor32hours;?,recoveryfor49hours.第32页,共64页，2024年2月25日，星期天Fig.4Responsesoftherelationshipbetween?PSIIand?CO2andPn-PFDcurvestochillingtreatmentinthedarkandsubsequentrecovery.Bothchlorophyllfluorescenceandthephotosynthesisrateweremeasuredat25?C.Subsequentrecoverywasconductedat25?Cand100?molm-2s-1PFD.(A)Therelationshipbetween?PSIIand?CO2determinedinNA;(B)Pn-FPDcurvesdeterminedinNA;(C)Therelationshipbetween?PSIIand?CO2determinedinLOA;(D)Pn-PFDcurvesdeterminedinLOA.▲,CK;?,post-treatment;?,recoveryfor8hours.第33页,共64页，2024年2月25日，星期天Fig.1EffectsofchillingstressonthemaximumphotochemicalefficiencyofPSII(Fv/Fm)oftobacco.Leafdiscswereexposedto100μmolm-2s-1PFDat4?C(▲,Wildtype;Δ,ΔndhB)and100μmolm-2s-1PFDat25?C(●,Wildtype;○,ΔndhB),respectively.Chlfluorescencewasmeasuredafter5mindarkadaptation.Eachpointrepresentsthemean?SDof5measurementsonseparateleaves.第34页,共64页，2024年2月25日，星期天Fig.3TimecourseofthechangesintheinvivoPSII-drivenelectrontransportrate(ETR)uponexposureto100μmolm-2s-1PFDat4?C(▲,Wildtype;Δ,ΔndhB)and100μmolm-2s-1PFDat25?C(●,Wildtype;○,ΔndhB),respectively.Eachpointrepresentsthemean?SDof5measurementsonseparateleaves.第35页,共64页，2024年2月25日，星期天Fig.4Timecourseofthedevelopmentof(A)