x
uploads/ascorbate.jpg

ascorbate n.抗壞血酸鹽。

ascorbic

In this experiment , seedlings of arabidopsis thaliana ( col ) were observed after being treated by verlicillium dahliae ( vd - toxin ) , exogenous salicylic acid ( sa ) , nitric oxide donor ( snp ) and nitric oxide synthase inhibitor ( nna ) , then we investigated the changes of endogenous h2o2 content , the activity of the antioxidant enzymes catalase ( cat , ec : 1 . 11 . 1 . 6 ) and ascorbate peroxidase ( apx , ec : 1 . 11 . 1 . 11 ) and mrna levels of cat3 in different stress conditions , we also identified the localizations of h2o2 and no accumulated in the leaves of arabidopsis 本實驗研究了棉花黃萎病菌?大麗輪枝菌毒素( vd - toxin )與擬南芥幼苗互作反應中外源sa 、 no供體snp 、 no合酶抑制劑nna等不同處理對擬南芥幼苗h _ 2o _ 2含量、 cat和apx活性及cat基因mrna表達量的影響,并對no 、 h _ 2o _ 2的積累部位進行染色檢測。

According to the research of physiological and biochemical indicators or index , components of soluble proteins , substrate protein of phosphorylation and the activity of protein kinase in low - temperature stress in the leaves of brassica oleracea l . , we tried to find the law of the physiological and biochemical response of brassica oleracea l . leaf to low temperature . at the same time , discussion on the signal transduction can also provide further evidences for revealing the mechanism of low - temperature stress . the results are showed as follows : malondialdehyde ( mda ) , superoxide dismutase ( sod ) , ascorbate peroxidase ( asp ) and peroxidase ( pod ) activities were changed greatly after 0 ~ 30min ' s treating with low temperature 本文以甘藍葉片為材料,通過對低溫5脅迫下甘藍生理生化指標、可溶性蛋白組分以及磷酸化底物蛋白、蛋白激酶活性的研究,以期找出甘藍葉片對低溫脅迫的生理生化響應規律,為甘藍露地越冬栽培防范寒害提供理論指導,同時對低溫脅迫下甘藍逆境信號傳導進行了探討,從而為徹底弄清低溫脅迫機理提供進一步的證據,研究的主要結果如下:丙二醛含量( mda ) 、超氧化物歧化酶( sod ) 、抗壞血酸過氧化物酶( asp )和過氧化物酶( pod )活性在低溫處理0 30min發生顯著變化,低溫處理3min后,甘藍葉片內mda含量基本沒有變化,處理5min時出現第一個峰值,達到對照的104 . 10 , 10min出現低谷,僅為對照的86 . 27 ,隨后再次上升, 30min時超過第一峰值,為對照的113 . 93 。

Absorption , fluorescence emission and excitation spectra of five pigment - protein complexes were determined . photosynthetic electron transfer was measured from the dcip photoreduction . p700 concentration was assayed from the ferricyanide - oxdised minus ascorbate - reduced difference spectrum 測定裙帶菜各色素蛋白復合物的吸收光譜、熒光發射光譜和熒光激發光譜,并進行了dcip的光還原測定和化學法的氧化還原差示光譜測定。

Food additive - sodium ascorbate 食品添加劑抗壞血酸鈉

Food additive - calcium ascorbate 食品添加劑抗壞血酸鈣