绵阳师范学院学报
綿暘師範學院學報
면양사범학원학보
Journal of Mianyang Normal University
2015年
11期
64-67
,共4页
刘彦汐%高泽梅%郭强%权秋梅%黎云祥
劉彥汐%高澤梅%郭彊%權鞦梅%黎雲祥
류언석%고택매%곽강%권추매%려운상
天全岩白菜%岩白菜%叶绿素荧光参数%叶绿素
天全巖白菜%巖白菜%葉綠素熒光參數%葉綠素
천전암백채%암백채%협록소형광삼수%협록소
B.tianquaninsis J.T.Pan%B.purpurascens Engl.%chlorophyll fluorescence%chlorophyll
以移栽的天全岩白菜(Bergenia tianquanensis J. T. Pan)和岩白菜(Bergenia purpurascens Engl.)为材料,利用 LI -6400便携式光合测定仪和分光光度计,分别测定两种岩白菜属植物的叶绿素荧光参数及叶绿素含量.结果表明:(1)天全岩白菜与岩白菜的 PSⅡ潜在活性分别为0.815和0.806,差异极显著(P <0.01),均没有发生光抑制现象;(2)PSⅡ有效光化学量子产量及 PSⅡ的潜在活性大于岩白菜,且差异极显著(P <0.01);而天全岩白菜的光化学淬灭显著小于岩白菜,非光化学淬灭系数也小于岩白菜,且差异显著( P <0.05);(3)表观光合电子传递速率与光存在时 PSⅡ实际的光化学量子效率在天全岩白菜和岩白菜之间不存在显著性差异(P >0.05);(4)天全岩白菜的叶绿素 a 含量、类胡萝卜素含量、叶绿素 a/ b 及类胡萝卜素/总叶绿素的值均大于岩白菜,而叶绿素 b 含量显著低于岩白菜(P <0.01).结论:天全岩白菜的捕光能力和在较强光照下的热耗散能力较岩白菜高,这也进一步说明了天全岩白菜的光合能力较岩白菜高.
以移栽的天全巖白菜(Bergenia tianquanensis J. T. Pan)和巖白菜(Bergenia purpurascens Engl.)為材料,利用 LI -6400便攜式光閤測定儀和分光光度計,分彆測定兩種巖白菜屬植物的葉綠素熒光參數及葉綠素含量.結果錶明:(1)天全巖白菜與巖白菜的 PSⅡ潛在活性分彆為0.815和0.806,差異極顯著(P <0.01),均沒有髮生光抑製現象;(2)PSⅡ有效光化學量子產量及 PSⅡ的潛在活性大于巖白菜,且差異極顯著(P <0.01);而天全巖白菜的光化學淬滅顯著小于巖白菜,非光化學淬滅繫數也小于巖白菜,且差異顯著( P <0.05);(3)錶觀光閤電子傳遞速率與光存在時 PSⅡ實際的光化學量子效率在天全巖白菜和巖白菜之間不存在顯著性差異(P >0.05);(4)天全巖白菜的葉綠素 a 含量、類鬍蘿蔔素含量、葉綠素 a/ b 及類鬍蘿蔔素/總葉綠素的值均大于巖白菜,而葉綠素 b 含量顯著低于巖白菜(P <0.01).結論:天全巖白菜的捕光能力和在較彊光照下的熱耗散能力較巖白菜高,這也進一步說明瞭天全巖白菜的光閤能力較巖白菜高.
이이재적천전암백채(Bergenia tianquanensis J. T. Pan)화암백채(Bergenia purpurascens Engl.)위재료,이용 LI -6400편휴식광합측정의화분광광도계,분별측정량충암백채속식물적협록소형광삼수급협록소함량.결과표명:(1)천전암백채여암백채적 PSⅡ잠재활성분별위0.815화0.806,차이겁현저(P <0.01),균몰유발생광억제현상;(2)PSⅡ유효광화학양자산량급 PSⅡ적잠재활성대우암백채,차차이겁현저(P <0.01);이천전암백채적광화학쉬멸현저소우암백채,비광화학쉬멸계수야소우암백채,차차이현저( P <0.05);(3)표관광합전자전체속솔여광존재시 PSⅡ실제적광화학양자효솔재천전암백채화암백채지간불존재현저성차이(P >0.05);(4)천전암백채적협록소 a 함량、류호라복소함량、협록소 a/ b 급류호라복소/총협록소적치균대우암백채,이협록소 b 함량현저저우암백채(P <0.01).결론:천전암백채적포광능력화재교강광조하적열모산능력교암백채고,저야진일보설명료천전암백채적광합능력교암백채고.
By using Li - 6400 portable photosynthesis meter and spectrophotometer,the parameters of chloro-phyll fluorescence and its content in Bergenia tianquaninsis J. T. Pan and Bergenia purpurascens Engl. were deter-mined. The results showed:1)the lateral reactivity of PSⅡwas 0. 815 for B. tianquaninsis J. T. Pan and 0. 806 for B. purpurascens Engl. ,which showed significant difference between B. tianquaninsis J. T. Pan and B. pur-purascens Engl. . there was no photoinhibition(P < 0. 01). 2)The effective photochemical efficiency and the po-tential activity in PSⅡ of B. tianquaninsis J. T. Pan was greater than that of B. purpurascens Engl. ,which showed significant difference between B. tianquaninsis J. T. Pan and B. purpurascens Engl.(P < 0. 01);And the photochemical quenching of B. tianquaninsis J. T. Pan was significantly less than that of B. purpurascens Engl. , non - photochemical quenching coefficient was less than of B. purpurascens Engl. ,and which showed significant difference(P < 0. 05). 3)The non - cyclic photo - synthemical electron transport rate of PSⅡ and the total quan-tum yield in PSⅡ neither show significant difference(P > 0. 05). and 4)The contents of chlorophy a,carote-noids,the ratios of chlorophy a to chlorophy b,the ratios of carotenoid to chlorophyⅡin B. tianquaninsis J. T. Pan were greater than those in B. purpurascens Engl. ,but thechlorophy b in B. tianquaninsis J. T. Pan was lower than that in B. purpurascens Engl.(P < 0. 01). It means that the capacity of light - harvesting and heat dissipa-tion capability under the strong light in B. tianquaninsis J. T. Pan was greater than those in B. purpurascens En-gl. ,which further illustrates the photosynthetic capacity of B. tianquaninsis J. T. Pan was stronger than that in B. purpurascens Engl. .