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二溴百里醌对荚膜红假单胞菌载色体中呼吸和光合电子传递的影响。

The effect of dibromothymoquinone on respiratory and photosynthetic electron transport in Rhodopseudomonas capsulata chromatophores.

作者信息

Evans E H, Gooding D A

出版信息

Arch Microbiol. 1976 Dec 1;111(1-2):171-4. doi: 10.1007/BF00446565.

DOI:10.1007/BF00446565
PMID:189722
Abstract

Dibromothymoquinone has been shown to inhibit light-induced cytochrome b reduction, and oxidation of succinate and NADH by chromatophores of Rhodopseudomonas capsulata. The half-inhibitory concentration of light-induced reactions and NADH oxidation is 2.5 muM, but of succinate oxidation is 16 muM. Hexane extraction inhibited oxidation of NADH and succinate equally. The results are interpreted to suggest that ubiquinone is concerned in all three processes described, but that the pools associated with NADH and succinate oxidation are not equally accessible to dibromothymoquinone.

摘要

二溴百里醌已被证明能抑制荚膜红假单胞菌的载色体光诱导的细胞色素b还原以及琥珀酸和NADH的氧化。光诱导反应和NADH氧化的半抑制浓度为2.5μM，而琥珀酸氧化的半抑制浓度为16μM。己烷萃取对NADH和琥珀酸的氧化抑制作用相同。这些结果表明泛醌参与了上述所有三个过程，但与NADH和琥珀酸氧化相关的库对二溴百里醌的可及性并不相同。

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引用本文的文献

1
A comparison of electron transport and photophosphorylation systems of Rhodopseudomonas capsulata and Rhodospirillum rubrum. Effects of antimycin A and dibromothymoquinone.荚膜红假单胞菌和深红红螺菌的电子传递与光合磷酸化系统的比较。抗霉素A和二溴百里醌的作用。
Arch Microbiol. 1978 Jan 23;116(1):29-34. doi: 10.1007/BF00408730.

本文引用的文献

1
Dibromothymoquinone: a new inhibitor of mitochondrial electron transport at the level of ubiquinone.
FEBS Lett. 1974 Apr 15;41(1):115-7. doi: 10.1016/0014-5793(74)80967-1.
2
The effect of redox potential on the coupling between rapid hydrogen-ion binding and electron transport in chromatophores from Rhodopseudomonas spheroides.氧化还原电位对球形红假单胞菌色素细胞中快速氢离子结合与电子传递之间偶联的影响。
J Bioenerg. 1973 Jan;4(1):211-27. doi: 10.1007/BF01516058.
3
Photochemical electron transport in photosynthetic reaction centers from Rhodopseudomonas spheroides. I. Kinetics of the oxidation and reduction of P-870 as affected by external factors.球形红假单胞菌光合反应中心的光化学电子传递。I. 外部因素对P-870氧化还原动力学的影响
Biophys J. 1972 Jul;12(7):867-81. doi: 10.1016/S0006-3495(72)86130-7.
4
Photochemical electron transport in photosynthetic reaction centers from Rhodopseudomonas spheroides. II. Interaction with external electron donors and acceptors and a reevaluation of some spectroscopic data.球形红假单胞菌光合反应中心的光化学电子传递。II. 与外部电子供体和受体的相互作用以及对一些光谱数据的重新评估。
Biophys J. 1972 Jan;12(1):46-63. doi: 10.1016/S0006-3495(72)86070-3.
5
On a new inhibitor of photosynthetic electron-transport in isolated chloroplasts.关于分离叶绿体中光合电子传递的一种新型抑制剂。
Z Naturforsch B. 1970 Oct;25(10):1157-9. doi: 10.1515/znb-1970-1018.
6
Studies on the mechanism of NAD-photoreduction by chromatophores of the facultative phototroph, Rhodopseudomonas capsulata.兼性光合细菌荚膜红假单胞菌的载色体进行NAD光还原作用的机制研究。
Z Naturforsch B. 1969 Jan;24(1):67-76. doi: 10.1515/znb-1969-0117.
7
In situ characterisation of photosynthetic electron transport in Rhodopseudomonas capsulata.荚膜红假单胞菌光合电子传递的原位表征
Biochim Biophys Acta. 1974 Jul 25;357(1):89-102. doi: 10.1016/0005-2728(74)90115-7.
8
A thermodynamic characterisation of the cytochromes of chromatophores from Rhodopseudomonas capsulata.荚膜红假单胞菌载色体细胞色素的热力学特性分析
Biochim Biophys Acta. 1974 Jul 25;357(1):78-88. doi: 10.1016/0005-2728(74)90114-5.
9
Identification of ubiquinone as the secondary electron acceptor in the photosynthetic apparatus of Chromatium vinosum.在嗜硫红假单胞菌光合装置中鉴定泛醌作为次级电子受体。
Biochim Biophys Acta. 1974 Jun 28;347(3):404-16. doi: 10.1016/0005-2728(74)90079-6.
10
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FEBS Lett. 1973 Sep 15;35(2):204-8. doi: 10.1016/0014-5793(73)80285-6.