请登录 免费注册

热搜:通用机械五金工具仪器仪表安防监控

频道
通用机械 电子元器件 行业设备 五金工具 电工电气 仪器仪表 安防监控 专用汽车 照明灯具 化工原料 涂料 塑胶 建筑原料 皮革 冶金
相关分类
相关标签
您最近阅读过的产品
产品展示

您的位置:首页 > 产品展厅 >  双通道PAM-100荧光仪 Dual-PAM-100

双通道PAM-100荧光仪 Dual-PAM-100

双通道PAM-100荧光仪 Dual-PAM-100

  • 价 格: 电议
  • 型号:
  • 生 产 地:进口
  • 访问:403次
  • 发布日期:2009/11/2(更新日期:1900/1/1)

上海泽泉科技有限公司

  • 提示:如果您未采购满意的产品,请在网页头部搜索更优质的产品
产品展示

相当于两台PAM-101/102/103,分别或同步测量P700(PS I)和叶绿素荧光(PS II)。
  • 详细内容
  • 公司简介
dual-pam-100: 一套空前强大的测量系统
schreiber教授因发明pam系列调制叶绿素荧光仪而获得首届国际光合作用协会(ispr)创新奖

1985年开始商品化的全世界第一台调制荧光仪pam-100被几代科学家所广泛采用。dual-pam-100相当于两台pam-100的功能。一方面,它继承了pam-100的所有优点,可以进行复杂的叶绿素荧光分析(ps ii活性);另一方面,它还可以通过测量p700的吸收变化来检测ps i的活性。特别需要强调的是,dual-pam-100可以在完全同步的情况下测量叶绿素荧光和p700吸收变化。此外,通过特殊的激发-检测单元还可以测量叶绿体或微藻的许多重要光合参数,如跨膜质子梯度delta ph(通过9-aa荧光或吖啶黄荧光)、类囊体膜的电势(通过类胡萝卜素的差示吸收,“p515”)和nadp的氧还状态(通过nadph荧光)等。如果需要极高的灵敏度可以通过连接光电倍增管检测器实现。



特点
1)声誉卓著的pam-101/102/103的升级版
2)专业的dual-pam操作软件
3)自动测量模式下操作极其简单
4)创新的光-电配件使得仪器非常便携
5)整合式光源(红光、蓝光、远红光、单脉冲饱和闪光、多脉冲饱和闪光)
6)多版本可选,用于测量高等植物和微藻
7)利用饱和脉冲法测量ps i活性
8)同步测量ps i和ps ii的量子产量
9)可以分析蓝藻的光合作用
10)可选配用于测量ph、nadph和p515等的附件
功能
1)ps i和ps ii的光化学量子产量
2)叶绿素荧光淬灭参数
3)系统间电子传递动力学
4)系统间电子载体库的大小(特殊的st/mt方法)
5)围绕ps i的环式电子传递动力学
6)ps i和ps ii能量传递的光响应曲线
7)荧光快速上升相(线性时间和对数时间)
8)测量pq库的还原态
9)测量光系统ii的吸收截面积

与pam-100相比,dual-pam-100的主要特点:
1)dual-pam-100完全由电脑控制,通过专业的windows操作软件dualpam进行。
2)软件dualpam除了基本的系统操作外,还提供许多特定的测量程序。
3)所有必需的光源(激发叶绿素荧光的红光和蓝光、测量p700的近红外光、红色和蓝色的光化光、单脉冲与多脉冲饱和闪光、远红光)均整合在基础系统中,不再需要复杂的电缆连接。
4)采用了专为dual-pam-100设计的许多新光-电配件,使得激发-检测单元和整合式光源非常便携、非常便于安装和拆卸。
5)所有的光源都可通过软件在2.5 μs的时间分辨率下控制。
6)测量光的频率范围非常大(1 hz~400 khz),因此同一个测量光源既可以用于测量fo,也可以用于诱发快速动力学(如荧光快速上升相或闪光弛豫动力学)。
7)用户可将针对特殊实验/样品的仪器设置存储起来,此后可在完全相同的设置下重复实验。
8)叶绿素荧光和p700的信号变化完全同步,并且是用同一个检测器检测,且不会互相干扰。
9)测量蓝藻时注意:用红光激发ps ii的荧光,用蓝光或远红光激发ps i。
   


       

dual-pam-100的这些特点开启了基础光合作用研究和应用光合作用研究的新途径。过去,同步测量ps i和ps ii的量子产量需要很强的专业背景和熟练的操作技巧,只有光合作用领域的少数专家会这项技术。现在,即使是初学者,也可迅速掌握同步测量ps i和ps ii活性的技术,不再需要复杂的操作技巧。

同步测量叶绿素荧光(ps ii)和p700(ps i)的诱导曲线

0

同步测量叶绿素荧光(ps ii)和p700(ps i)的光响应曲线


专为dual-pam-100设计的windows操作软件dualpam功能强大,允许独立记录叶绿素荧光或p700,或同步记录叶绿素荧光和p700,记录每次打开饱和脉冲时的动力学变化,以线性时间多对数时间记录快速荧光上升动力学(分辨率2.5 us),分析各种荧光参数的变化等等。

p700的测量



以线性时间记录的荧光快速上升动力学

以对数时间记录的荧光快速上升动力学(相当于o-j-i-p相)


kramer的新荧光参数资料,这是一篇2004年发表在photosynthesis research 上的文章,见如下描述:

kramer提出的新参数:
ql,用于代替qp
y(ii)=y=(fm’-f)/fm’
y(npq) 表征ps ii处过量光能耗散为热,与光保护有关
y(no) 表征ps ii处过量光能引起的光损伤
y(ii)+y(npq)+y(no)=1

schreiber教授和其学生klughammer博士新设计的dual-pam-100中,借鉴测量叶绿素荧光的方法,新增了几个参数:
y(i) ps i的量子产量或ps i的光合效率
y(nd) 表征ps i处过量光能耗散为热,与光保护有关
y(na) 表征ps i处过量光能引起的光损伤
y(i)+y(nd)+y(na)=1

色素分子处于氧化态和还原态时,或增加/减少亚基后,其吸收峰会有变化。基于此原理,p700吸收变化、p515吸收变化(类胡萝卜素能态)、p505吸收变化(叶黄素循环)等均可通过dual-pam-100测量。主机共用,只是更换激发-检测单元即可。此外,dual-pam-100还可用于测量nadph荧光、9aa荧光(跨膜质子梯度)等。

部分利用dual-pam-100发表的p700文献

1. aronsson h, schöttler ma, kelly aa, sundqvist c, dörmann p, karim s, jarvis p: monogalactosyldiacylglycerol deficiency in arabidopsis affects pigment composition in the prolamellar body and impairs thylakoid membrane energization and photoprotection in leaves. plant physiology 2008;148:580-592.
2. bailey s, melis a, mackey krm, cardol p, finazzi g, dijken gv, berge gm, arrigo k, shrager j, grossman a: alternative photosynthetic electron flow to oxygen in marine synechococcus biochimica et biophysica acta 2008;1777:269-276.
3. ehlert b, schöttler ma, tischendorf g, ludwig-müller j, bock r: the paramutated sulfurea locus of tomato is involved in auxin biosynthesis. journal of experimental biology 2008:in press.
4. ma w, chen l, wei l, wang q: excitation energy transfer between photosystems in the cyanobacterium synechocystis 6803 journal of luminescence 2008;128:546-548.
5. rogalski m, schöttler ma, thiele w, schulze wx, bock r: rpl33, a nonessential plastid-encoded ribosomal protein in tobacco, is required under cold stress conditions. the plant cell 2007;20:2221-2237.
6. schöttler m, flügel c, thiele w, stegemann s, bock r: the plastome-encoded psaj subunit is required for efficient photosystem i excitation, but not for plastocyanin oxidation in tobacco. biochemical journal 2007;403:251-260.
7. volkmer t, schneider d, bernát g, kirchhoff h, wenk s-o, rögner m: ssr2998 of synechocystis sp. pcc 6803 is involved in regulation of cyanobacterial electron transport and associated with the cytochrome b6f complex. journal of biological chemistry 2007;282:3730-3737.
8. lohmann a, schottler ma, brehelin c, kessler f, bock r, cahoon eb, dormann p: deficiency in phylloquinone (vitamin k1) methylation affects prenyl quinone distribution, photosystem i abundance, and anthocyanin accumulation in the arabidopsis atmeng mutant. journal of biological chemistry 2006;281:40461-40472.
9. schöttler ma, flügel c, thiele w, bock r: knock-out of the plastid-encoded petl subunit results in reduced stability and accelerated leaf age-dependent loss of the cytochrome b6f complex. journal of biological chemistry 2006;282:976-985.


部分利用pam-101/102/103发表的p700文献

1. wang p, duan w, takabayashi a, endo t, shikanai t, ye j-y, mi h, 2006. chloroplastic nad(p)h dehydrogenase in tobacco leaves functions in alleviation of oxidative damage caused by temperature stress. plant physiology 141: 465-474.
2. xu d, liu x, zhao j, zhao j, 2005. fesm, a membrane iron-sulfur protein, is required for cyclic electron flow around photosystem i and photoheterotrophic growth of the cyanobacterium synechococcus sp. pcc 7002. plant physiology 138: 1586-1595.
3. pikulenko mm, bulychev aa, 2005. light-triggered action potentials and changes in quantum efficiency of photosystem ii in anthoceros cells russian journal of plant physiology 52: 584-590.
4. peterson rb, 2005. psbs genotype in relation to coordinated function of ps ii and ps i in arabidopsis leaves. photosynthesis research 85: 205-219.
5. okegawa y, tsuyama m, kobayashi y, shikanai t, 2005. the pgr1 mutation in the rieske subunit of the cytochrome b6f complex does not affect pgr5-dependent cyclic electron transport around photosystem i. the journal of biological chemistry 280: 28332-28336.
6. munné-bosch s, shikanai t, asada k, 2005. enhanced ferredoxin-dependent cyclic electron flow around photosystem i and α-tocopherol quinone accumulation in water-stressed ndhb-inactivated tobacco mutants. planta 222: 502-511.
7. munné-bosch s, shikanai t, asada k, 2005. enhanced ferredoxin-dependent cyclic electron flow around photosystem i and -tocopherol quinone accumulation in water-stressed ndhb-inactivated tobacco mutants. planta 222: 502-511.
8. li x-g, bi y-p, zhao s-j, meng q-w, he q-w, zou q, 2005. effects of short-term chilling stress on the photosystems and chloroplast ultrastructure in sweet pepper. agricultural sciences in china 4: 429-435.
9. laisk a, eichelmann h, oja v, rasulov b, padu e, bichele i, pettai h, kull o, 2005. adjustment of leaf photosynthesis to shade in a natural canopy: rate parameters. plant cell and environment 28: 375-388.
10. ivanov b, asada k, kramer dm, edwards g, 2005. characterization of photosynthetic electron transport in bundle sheath cells of maize. i. ascorbate effectively stimulates cyclic electron flow around ps i. planta 220: 572-581.
11. ifuku k, yamamoto y, ono t-a, ishihara s, sato f, 2005. psbp protein, but not psbq protein, is essential for the regulation and stabilization of photosystem ii in higher plants. plant physiology 139: 1175–1184.
12. hirotsu n, makino a, yokota s, mae t, 2005. the photosynthetic properties of rice leaves treated with low temperature and high irradiance plant cell and physiology 46: 1377-1383.
13. gerloff-elias a, spijkerman e, pröschold t, 2005. effect of external ph on the growth, photosynthesis and photosynthetic electron transport of chlamydomonas acidophila negoro, isolated from an extremely acidic lake (ph 2.6). plant cell and environment 28: 1218-1229.
14. georgieva k, maslenkova l, peeva v, markovska y, stefanov d, tuba z, 2005. comparative study on the changes in photosynthetic activity of the homoiochlorophyllous desiccation-tolerant haberlea rhodopensis and desiccation-sensitive spinach leaves during desiccation and rehydration. photosynthesis research 85: 191-203.
15. endo t, kawase d, sato f, 2005. stromal over-reduction by high-light stress as measured by decreases in p700 oxidation by far-red light and its physiological relevance. plant cell and physiology 46: 775-781.
16. egorova ea, drozdova is, bukhov ng, 2005. modulating effect of far-red light on activities of alternative electron transport pathways related to photosystem i russian journal of plant physiology 52: 709-716.
17. dzhibladze tg, polesskaya og, alekhina nd, egorova ea, bukhov ng, 2005. redox states of photosystems i and ii in irradiated leaves of wheat seedlings grown under different conditions of nitrogen nutrition. russian journal of plant physiology 52: 141-146.
18. ducruet j-m, roman m, havaux m, janda t, gallais a, 2005. cyclic electron flow around psi monitored by afterglow luminescence in leaves of maize inbred lines (zea mays l.): correlation with chilling tolerance. planta 221: 567-579.
19. ducruet j-m, roman m, havaux m, janda t, gallais a, 2005. cyclic electron flow around ps i monitored by afterglow luminescence in leaves of maize inbred lines (zea mays l.): correlation with chilling tolerance. planta 221: 567-579.
20. bukhov ng, egorova ea, 2005. nonmonotonic redox conversions of p700 in leaves irradiated with far-red light originate from variable contributions of several alternative electron transport pathways during the induction period russian journal of plant physiology 52: 571-577.
21. bukhov ng, egorova ea, 2005. identification of ferredoxin-dependent cyclic electron transport around photosystem i using the kinetics of dark p700+ reduction. russian journal of plant physiology 52: 283-287.
22. bukhov ng, egorova ea, 2005. evidence for the operation of alternative electron transport routes through photosystem i in intact barley leaves under weak and moderate white light. russian journal of plant physiology 52: 1-6.
23. bukhov ng, dzhibladze tg, egorova ea, 2005. elevated temperatures inhibit ferredoxin-dependent cyclic electron flow around photosystem i russian journal of plant physiology 52: 578-583.
24. zhang s, scheller hv, 2004. photoinhibition of photosystem i at chilling temperature and subsequent recovery in arabidopsis thaliana plant cell and physiology 45: 1595-1602.
25. zhang s, scheller hv, 2004. light-harvesting complex ii binds to several small subunits of photosystem i. the journal of biological chemistry 279: 3180-3187.
26. yabe t, morimoto k, kikuchi s, nishio k, terashima i, nakai m, 2004. the arabidopsis chloroplastic nifu-like protein cnfu, which can act as an iron-sulfur cluster scaffold protein, is required for biogenesis of ferredoxin and photosystem i the plant cell 16: 993-1007.
27. stöckel j, oelmüller r, 2004. a novel protein for photosystem i biogenesis. the journal of biological chemistry 279: 10243-10251.
28. schöttler ma, kirchhoff h, weis e, 2004. the role of plastocyanin in the adjustment of the photosynthetic electron transport to the carbon metabolism in tobacco. plant physiology 136: 4265-4274.
29. mackenzie tdb, burns ra, campbell da, 2004. carbon status constrains light acclimation in the cyanobacterium synechococcus elongatus. plant physiology 136: 3301-3312.
30. bukhov ng, govindachary s, rajagopal s, joly d, carpentier r, 2004. enhanced rates of p700+ dark-reduction in leaves of cucumis sativus l. photoinhibited at chilling temperature. planta 218: 852-861.
31. bukhov ng, govindachary s, egorova ea, carpentier r, 2004. recovery of photosystem i and ii activities during re-hydration of lichen hypogymnia physodes thalli. planta 219: 110-120.
32. amann k, lezhneva l, wanner g, herrmann rg, meurer j, 2004. accumulation of photosystem one1, a member of a novel gene family, is required for accumulation of [4fe-4s] culster-containing chloroplast complexes and antenna proteins. the plant cell 16: 3084-3097.
33. 姚正菊, 叶济宇, 米华玲, 2003. 高温胁迫对烟草叶绿体nadph脱氢酶复合体活性的促进. 植物生理与分子生物学学报 29: 395-400.
34. wang h-w, su j-h, shen y-g, 2003. difference in response of photosynthesis to bisulfite between two wheat genotypes. journal of plant physiology and molecular biology 29: 27-32.
35. wang h-w, mi h, ye j-y, deng y, shen y-k, 2003. low concentrations of nahso3 increase cyclic photophosphorylation and photosynthesis in cyanobacterium synechocystis pcc6803. photosynthesis research 75: 151-159.
36. shikanai t, müller-moulé p, munekage y, niyogi kk, pilonc m, 2003. paa1, a p-type atpase of arabidopsis, functions in copper transport in chloroplasts the plant cell 15: 1333-1346.
37. ryu j-y, suh k-h, chung y-h, park y-m, chow ws, park y-i, 2003. cytochrome c oxidase of the cyanobacterium synechocystis sp. pcc 6803 protects photosynthesis from salt stress. molecules and cells 16: 74-77.
38. rajagopala s, egorova ea, bukhov ng, carpentier r, 2003. quenching of excited states of chlorophyll molecules in submembrane fractions of photosystem i by exogenous quinones. biochimica et biophysica acta 1606: 147-152.
39. rajagopal s, carpentier r, 2003. retardation of photo-induced changes in photosystem i submembrane particles by glycinebetaine and sucrose. photosynthesis research 78: 77-85.
40. oja v, eichelmann h, peterson rb, rasulov b, laisk a, 2003. deciphering the 820 nm signal: redox state of donor side and quantum yield of photosystem i in leaves. photosynthesis research 78: 1-15.
41. maiwald d, dietzmann a, jahns p, pesaresi p, joliot p, joliot a, levin jz, salamini f, leister d, 2003. knock-out of the genes coding for the rieske protein and the atp-synthase δ-subunit of arabidopsis. effects on photosynthesis, thylakoid protein composition, and nuclear chloroplast gene expression. plant physiology 133: 191-220.
42. krause gh, grube e, virgo a, winter k, 2003. sudden exposure to solar uv-b radiation reduces net co2 uptake and photosystem i efficiency in shade-acclimated tropical tree seedlings. plant physiology 131: 745-752.
43. hanson dt, franklin la, samuelsson g, badger mr, 2003. the chlamydomonas reinhardtii cia3 mutant lacking a thylakoid lumen-localized carbonic anhydrase is limited by co2 supply to rubisco and not photosystem ii function in vivo. plant physiology 132: 2267-2275.
44. golding aj, johnson gn, 2003. down-regulation of linear and activation of cyclic electron transport during drought. planta 218: 107-114.
45. egorova ea, bukhov ng, heber u, samson g, carpentier r, 2003. effect of the pool size of stromal reductants on the alternative pathway of electron transfer to photosystem i in chloroplasts of intact leaves. russian journal of plant physiology 50: 431-440.
46. 姚正菊, 米华玲, 叶济宇, 2002. 光诱导叶片p700氧化还原的测量. 植物生理性通讯 38: 54-56.
47. yamasaki t, yamakawa t, yamane y, koike h, satoh k, katoh s, 2002. temperature acclimation of photosynthesis and related changes in photosystem ii electron transport in winter wheat. plant physiology 128: 1087-1097.
48. varotto c, pesaresi p, jahns p, leßnick a, tizzano m, schiavon f, salamini f, leister d, 2002. single and double knockouts of the genes for photosystem i subunits g, k, and h of arabidopsis. effects on photosystem i composition, photosynthetic electron flow, and state transitions. plant physiology 129: 616-624.
49. morgan-kiss rm, ivanov ag, huner npa, 2002. tha antarctic psychrophile, chlamydomonas subcaudata, is deficient in state i-state ii transitions. planta 214: 435-445.
50. miskiewicz e, ivanov ag, huner npa, 2002. stoichiometry of the photosynthetic apparatus and phycobilisome structure of the cyanobacterium plectonema boryanum utex 485 are regulated by both light and temperature. plant physiology 130: 1414-1425.
51. makino a, miyake c, yokota a, 2002. physiological functions of the water–water cycle (mehler reaction) and the cyclic electron flow around psi in rice leaves. plant cell and physiology 43: 1017-1026.
52. laisk a, oja v, rasulov b, rämma h, eichelmann h, kasparova i, pettai h, padu e, vapaavuori e, 2002. a computer-operated routine of gas exchange and optical measurements to diagnose photosynthetic apparatus in leaves. plant cell and environment 25: 923-943.
53. joët t, cournac l, peltier g, havaux m, 2002. cyclic electron flow around photosystem i in c3 plants. in vivo control by the redox state of chloroplasts and involvement of the nadh-dehydrogenase complex plant physiology 128: 760-769.
54. jin m-x, mi h, 2002. thermal sensitivity of the pool size of electrons available to p700+ reduction in intact maize leaves. photosynthetica 40: 437-439.
55. jin m-x, li d-y, mi h, 2002. effects of high temperature on chlorophyll fluorescence induction and the kinetics of far red radiation-induced relaxation of apparent fo in maize leaves. photosynthetica 40: 581-586.
56. jeong sw, choi sm, lee ds, ahn sn, hur y, chow ws, park y-i, 2002. differential susceptibility of photosynthesis to light-chilling stress in rice (oryza sativa l.) depends on the capacity for photochemical dissipation of light. molecules and cells 13: 419-428.
57. bukhov ng, rajagopal s, carpentier r, 2002. characterization of p700 as a photochemical quencher in isolated photosystem i particles using simultaneous measurements of absorbance changes at 830 nm and photoacoustic signal. photosynthesis research 74: 295-302.
58. thomas dj, thomas j, youderian pa, herbert sk, 2001. photoinhibition and light-induced cyclic electron transport in ndhb- and psae- mutants of synechocystis sp. pcc 6803. plant cell and physiology 42: 803-812.
59. peterson r, havir e, 2001. photosynthetic properties of an arabidopsis thaliana mutant possessing a defective psbs gene. planta 214: 142-152.
60. lennartz k, plücken h, seidler a, westhoff p, bechtold n, meierhoff k, 2001. hcf164 encodes a thioredoxin-like protein involved in the biogenesis of the cytochrome b6f complex in arabidopsis. the plant cell 13: 2539-2551.
61. jin m-x, yao z-j, mi h, 2001. multi-phasic kinetics of p700+ dark re-reduction in nicotiana tabacum. photosynthetica 39: 419-425.
62. durchan m, vácha f, krieger-liszkay a, 2001. effects of severe co2 starvation on the photosynthetic electron transport chain in tabacco plants. photosynthesis research 68: 203-213.
63. bukhov n, carpentier r, samson g, 2001. heterogeneity of photosystem i reaction centers in barley leaves as related to the donation from stromal reductants. photosynthesis research 70: 273-279.
64. barth c, krause gh, winter k, 2001. responses of photosystem i compared with photosystem ii to high-light stress in tropical shade and sun leaves. plant cell and environment 24: 163-176.
65. baena-gonzález e, gray jc, tyystjärvi e, aro e-m, mäenpää p, 2001. abnormal regulation of photosynthetic electron transport in a chloroplast ycf9 inactivation mutant. the journal of biological chemistry 276: 20795-20802.
66. allakhverdiev si, kinoshita m, inaba m, suzuki i, murata n, 2001. unsaturated fatty acids in membrane lipids protect the photosynthetic machinery against salt-induced damage in synechococcus. plant physiology 125: 1842-1853.
67. ohkawa h, pakrasi hb, ogawa t, 2000. two types of functionally distinct nad(p)h dehydrogenases in synechocystis sp. strain pcc 6803. the journal of biological chemistry 275: 31630-31634.
68. lunde c, jensen pe, haldrup a, knoetzel j, scheller hv, 2000. the psi-h subunit of photosystem i is essential for state transitions in plant photosynthesis. nature 408: 613-615.
69. jensen pe, gilpin m, knoetzel j, scheller hv, 2000. the psi-k subunit of photosystem i is involved in the interaction between light-harvesting complex i and the photosystem i reaction center core. the journal of biological chemistry 275: 24701-24708.
70. ivanov ag, park y-i, miskiewicz e, raven ja, huner npa, öquist g, 2000. iron stress restricts photosynthetic intersystem electron transport in synechococcus sp. pcc 7942 febs letters 485: 173-177.
71. haldrup a, simpson dj, scheller hv, 2000. down-regulation of the psi-f subunit of photosystem i (psi) in arabidopsis thaliana. the psi-f subunit is essential for photoautotrophic growth and contributes to antenna function. the journal of biological chemistry 275: 31211-31218.
72. naver h, haldrup a, scheller hv, 1999. cosuppression of photosystem i subunit psi-h in arabidopsis thaliana. efficient electron transfer and stability of photosystem i is dependent upon the psi-h subunit. the journal of biological chemistry 274: 10784-10789.
73. manuel n, cornic g, aubert s, choler p, bligny r, heber u, 1999. protection against photoinhibition in the alpine plant geum montanum. oecologia 119: 149-158.
74. endo t, shikanai t, takabayashi a, asada k, sato f, 1999. the role of chloroplastic nad(p)h dehydrogenase in photoprotection. febs letters 457: 5-8.
75. backhausen j, scheibe r, 1999. adaptation of tobacco plants to elevated co2: influence of leaf age on changes in physiology, redox states and nadp-malate dehydrogenase activity. journal of experimental botany 50: 665-675.
76. sazanov la, burrows pa, nixon pj, 1998. the chloroplast ndh complex mediates the dark reduction of the plastoquinone pool in response to heat stress in tobacco leaves. febs letters 429: 115-118.
77. klughammer c, schreiber u, 1998. measuring p700 absorbance changes in the near infrared spectral region with a dual wavelength pulse modulation system. garab g, ed. photosynthesis: mechanisms and effects. dordrecht: kluwer academic publishers, 4357-4360.
78. ivanov ag, morgan rm, gray gr, velitchkova my, huner npa, 1998. temperature/light dependent development of se-lective resistance to photoinhibition of photosystem i febs letters 430: 288-292.
79. burrows pa, sazanov la, svab z, maliga p, nixon pj, 1998. identification of a functional respiratory complex in chloroplasts through analysis of tobacco mutants containing disrupted plastid ndh genes the embo journal 1998: 868-876.
80. 王颖君, 叶济宇, 米华玲, 李德耀, 沈允钢, 1997. 质醌参与脓青素催化的ps i循环电子传递. 生物化学与生物物理学报 29: 579-584.
81. mi h, endo t, ogawa t, asada k, 1995. thylakoid membrane-bound, nadph-specific pyridine nucleotide dehydrogenase complex midiates cyclic electron transport in the cyanobacterium synechocystis sp. pcc 6803. plant cell and physiology 36: 661-668.
82. peterson rb, 1994. regulation of electron transport in photosystems i and ii in c3, c3-c4, and c4 species of panicum in response to changing irradiance and o2 levels. plant physiology 105: 349-356.
83. mi h, endo t, schreiber u, ogawa t, asada k, 1994. nad(p)h dehydrogenase-dependent cyclic electron flow around photosystem i in the cyanobacterium synechocystis pcc 6803: a study of dark-starved cells and spheroplasts. plant cell and physiology 35: 163-173.
84. klughammer c, schreiber u, 1994. an improved method, using saturating light pulses, for the determination of photosystem i quantum yield via p700+-absorbance changes at 830 nm. planta 192: 261-268.
85. geerts d, schubert h, de vrieze g, borrias m, matthijs hcp, weisbeek pj, 1994. expression of anabaena pcc 7937 plastocyanin in synechococcus pcc 7942 enhances photosynthetic electron transfer and alters the electron distribution between photosysteim and cytochrome-c oxidase. the journal of biological chemistry 269: 28068-28075.
86. asada k, heber u, schreiber u, 1993. electron flow to the intersystem chain from stromal components and cyclic electron fow in maize chloroplasts, as detected in intact leaves by monitoring redox change of p700 and chlorophyll fluorescence. plant cell and physiology 34: 39-50.
87. mi h, endo t, schreiber u, ogawa t, asada k, 1992. electron donation from cyclic and respiratory flows to the photosynthetic intersystem chain is mediated by pyridine nucleotide dehydrogenase in the cyanobacterium synechocystis pcc 6803. plant cell and physiology 33: 1233-1237.
88. mi h, endo t, schreiber u, asada k, 1992. donation of electrons from cytosolic components to the intersystem chain in the cyanobacterium synechococcus sp. pcc 7002 as determined by the reduction of p700+. plant cell and physiology 33: 1099-1105.
89. asada k, heber u, schreiber u, 1992. pool size of electron that can be donated to p700+, as determined in intact leaves: donation to p700+ from stromal components via the intersystem chain. plant cell and physiology 33: 927-932.
90. schmidt w, neubauer c, kolbowski j, schreiber u, urbach w, 1990. comparison of effects of air pollutants (so2, o3, no2) on intact leaves by measurements of chlorophyll fluorescence and p700 absorbance changes photosynthesis research 25: 241-248.
91. asada k, neubauer c, heber u, schreiber u, 1990. methyl viologen-dependent cyclic electron transport in spinach chloroplasts in the absense of oxygen. plant cell and physiology 31: 557-564.
92. schreiber u, klughammer c, neubauer c, 1988. measuring p700 absorbance changes around 830 nm with a new type of pulse modulation system. z. naturforsch. 43c: 686-698.


泽泉科技有限公司是一家致力于引进欧美高科技产品并提供系统解决方案的高科技公司。泽泉科技不仅向用户提供仪器设备的选型、采购、安装调试、技术培训和售后支持等服务,还向用户提供系统解决方案及集成服务。 公司由陆地环境部、水环境部和系统集成部组成。陆地环境部主要提供植物、土壤、气象和环境领域需要的仪器,并提供气象监测、节水灌溉、生态监测站等项目的系统解决方案;水环境部主要提供海洋和淡水研究中需要的仪器,并提供近岸、水上(浮标型)和移动型(水下机器人)监测/预警系统的系统解决方案;系统集成部主要为专业用户提供定制个性化服务。
迄今,我们已经与30多家国际著名生态,植物仪器研发制造商达成了代理协议,负责其产品在中国大陆和香港地区的技术销售和售后服务,逐步形成了SPAC土壤-植物-大气循环体全系列的产品结构,方便了国内专业用户的实验需求。针对德国WALZ公司PAM系列产品,围绕PAM脉冲-振幅-调制荧光技术在植物光合作用研究领域的应用,我们建立了“德国WALZ公司中国技术服务中心”,每月定期在全国范围内举办实验培训班,提供国内外最新的文献支持和交流,在国内也得到了广大用户的大力支持和认可。
公司成立于2000年,总部位于上海,并在北京和成都设有分部。公司员工全部具有本科以上学历,其中技术人员均具有博士或硕士学历。同时依托各地合作伙伴将业务领域扩展到全国。取得以上成绩的原因,就在于泽泉科技不仅向中国生命科学研究与应用领域提供品质良好的仪器,并且在售前售后提供了一系列增值服务和强有力的技术支持。泽泉的团队由几十位具有生化、生理、生态、农学、海洋学、环境保护等行业技术背景及市场经验,又熟悉产品特性与应用的专业人士组成,具有丰富的生态仪器领域技术服务经验。与此同时,我们为了更好的提供专业服务,我们与国内诸多权威研究机构建立了合作实验室,其中包括:“中科院植物所生态联合实验室”,“北京林业大学植物生态联合实验室”,“中科院地理所土壤重金属污染调查联合实验室”,“新疆生态地理所植物生态联合实验室”等多个技术支撑单位。
专业的精神,积极的态度,诚信的商业原则是泽泉科技有限公司全体同仁对广大用户的承诺。今天,泽泉正携手众多国际一流厂商,为我们的广大客户提供更多、更优秀的产品和一流的服务!
产品留言

公司同类产品

版权说明

凡本网注明"来源:易推广"的所有作品,版权均属于易推广,未经本网授权不得转载、摘编或利用其它方式使用。已获本网授权的作品,应在授权范围内

使用,并注明"来源:易推广"。违者本网将追究相关法律责任。

本网凡注明"来源:xxx(非本网)"的作品,均转载自其它媒体,转载目的在于传递更多信息,并不代表本网赞同其观点和对其真实性负责,且不承担此 类作品侵权行为的直接责任及连带责任。如其他媒体、网站或个人从本网下载使用 ,必须保留本网注明的"稿件来源",并自负版权等法律责任。

如涉及作品内容、版权等问题,请在作品发表之日起两周内与本网联系,否则视为放弃相关权利。

易推广页面显示产品信息均由企业自主发布,信息内容真实性、准确性与合法性由相关企业负责,易推广对此不承担任何责任,如遇非法或侵权信息欢迎监督,请联系QQ:1273397930或者发邮件至:1273397930@qq.com,如有确实证件证明属实,本站将对其删除处理,谢谢!

本信息由注册会员:上海泽泉科技有限公司发布并且负责版权等法律责任。

最新产品 - 今日最热门报道-分类浏览 - 每日产品
  • 易推广客服微信