apx 中文意思是什麼

apx 解釋
抗壞血酸過氧化物
  1. 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,並對no 、 h _ 2o _ 2的積累部位進行染色檢測。
  2. Second, the activities of protective enzymes i. e. superoxide dismutase ( sod ), peroxidase ( pod ), and ascrobate peroxidase ( apx ) exhibited down - up - down trends when treated with 2 @ and 8 @, and these activities sustained at a relatively high level. this indicated euonymus japonicus " zhuzi " had relatively high adaptability to cold stress

    ( 2 ) 『粗枝』大葉黃楊在零上低溫時,細胞保護酶超氧化物歧化酶( sod ) 、過氧化物酶( pod ) 、抗壞血酸過氧化物酶( apx )的活性先降低後上升,又下降並維持較高的水平,表明『粗枝』大葉黃楊對低溫脅迫有一定的適應性。
  3. Derived from the 1929 fortress gun ( itself a development of the old 1897 field gun ) with a semi - automatic breech and an automatic loader added, the " high power " apx 75mm gun fired a mle 1915 he round with a reduced charge at 400 m / s and the mle 1915 ap round at 570 m / s ( 50mm penetration at 1000 m ) and its two sights and stereoscopic rangefinder allowed a direct fire range of 2000 m

    「大威力」 apx型75毫米炮由1929型要塞炮(舊式1897型野炮的發展型)衍生而來,加裝了半自動炮尾和一個自動裝填器,發射減裝藥的1915型高爆彈(初速400米/秒) ,及1915型穿甲彈(初速570米/秒, 1000米距離可穿透50毫米裝甲) 。
  4. The activity of apx was also decresed after sa and vd - toxin treatment. the activity of cat was decreasded more obviously. in the vd - toxin infected arabidopsis, no also restrained the activity of cat and decreased the level of cat3 mrna. the results suggested that h2o2 acted as a signal to involve the defense reactions which is induced by sa and no in arabidopsis

    No在毒素與擬南芥的互作過程中也表現出對cat的抑制作用,結果表明, h _ 2o _ 2可能作為信號分子參與了sa和no調控的擬南芥的防衛反應, sa和no或許在轉錄和蛋白水平上通過對cat的抑制作用而促進h _ 2o _ 2的積累。
  5. H2o2 was cytochemically detected in the cells of epidermal hair and the cell wall of vascular parenchyma cell. cat and apx were the two major h2o2 - scavenging enzymes in plants. when seedlings of arabidopsis thaliana were treated by vd - toxin, the activity of cat and cat3 mrna level were decreased after sa treatment

    外源sa 、 no供體處理擬南芥幼苗均能誘導h _ 2o _ 2的積累, no供體的誘導作用最強; no合酶抑制劑處理則未表現出h _ 2o _ 2含量的增強: h _ 2o _ 2的積累部位主要在葉片的表皮毛和維管束組織。
  6. In cells, apx has several isoenzymes, cytosolic and chloroplastic isoforms are main ones, of which the chloroplastic isoform represents a large portion of apx of the cell

    它在細胞內有多種同工酶,主要分為細胞質型和葉綠體型,其中,葉綠體型在細胞中佔有很大的比重。
  7. Cdna cloning and gene expression of apx in suaeda salsa in response to salt stress

    基因的克隆及鹽脅迫下的表達
  8. Apx alias cell number 5 ) ( aliascsno ) this field represents the autoplex system alias cell number for a cell in another system

    該欄位表示另一個系統內某個小區的autoplex系統別名小區號。
  9. There are no distinct changes in dhar activity. the activities of apx and gr increased along with the decline of h2o2

    鍋脅迫使」 x , gr , dhar活性都下降,加入1mg ? l 『 ,鋅處理后使三者活性繼續下降,加入10mg 』 l一『鋅處理后則使它們的活性上升。
  10. However, sod, pod, and apx activities increased rapidly in 6h and then decreased sharply afterwards under freezing temperature treatment. they are severely inhibited by stress under - 8 @

    在零下低溫時, sod 、 pod和apx的活性6h內迅速提高後下降, ? 8處理120h后,其活性已受到明顯的抑制。
  11. The necessary and sufficient conditions for the existence of the - inverse of matrices over the complex fields and its expression are proved with the help of the generalized singular value decomposition. the linear equations apx = b are studied by using the - inverse of matrix a

    利用矩陣的廣義奇異值分解,給出了復數域上矩陣-逆存在的充要條件,利用矩陣-逆研究了矩陣方程apx = b 。
  12. The dual effects of no were validated in this research. no was either oxidative or antioxidative which depends on the circumstances. generally no took part in the antioxidant cellular system by elevating the activities of cat and apx. while in the vd - toxin infected arabidopsis, no supressed the activity of cat and may participate in redox signaling during the activation of defense responses which follows the pathognen attack

    本實驗結果進一步驗證了no作用的雙重性,即在通常情況下, no表現出的是抗氧化性,而當毒素與擬南芥互作時, no通過抑制cat活性,促進h _ 2o _ 2的積累,傳遞抗病信號,表現其氧化性的一面。
  13. This indicated a rising tendency of ros content on the whole under salt and high photon intensity, and even a great increment after short time of treatment. so, suaeda salsa must have a high ability to scavenge ros in order to grow well under salt stress, otherwise the highly active ros would induce oxidative damage on the plants and inhibit its growth. now apx activity changed correspondingly

    葉綠體中apx在整個細胞中佔有很大的比例,其中s apx可佔到整個細胞中可溶性apx的70以上;同時, s apx 、 t apx在葉綠體中基本上各佔一半,因而,一方面保證了光合膜上產生的hzoz原位清除,同時也能充分地清除基質中各種來源的h 。
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