作者: 眨眼 時(shí)間: 2025-3-21 20:20
Evidence-Based and Nuclear Cardiology,oteins like ferredoxins and rubredoxins as well as membrane-bound cytochromes. Occurrence and distributions of soluble electron-transfer proteins of Chlorobiaceae so far examined are summarized in Table 1 (Steinmetz, 1984; Fischer, 1986).作者: GAVEL 時(shí)間: 2025-3-22 04:23
Growth Rate and the Control of Development of the Photosynthetic Apparatus in , as Studied on the Baplexes harvest light in bag-like structures, the chlorosomes, which are attached to the cytoplasmic membrane. Chlorosomes are linked to the cytoplasmic membrane by a baseplate which contains a third BChl a-protein complex isolated at a constant Low proportion together with chlorosomes (Feick et al., 1962).作者: 思想流動(dòng) 時(shí)間: 2025-3-22 08:35 作者: Anthem 時(shí)間: 2025-3-22 11:00
Novelty, Information and Surprisert here a study of the dynamics of the chlorosome lipid phase using electron spin resonance (ESR) spectrometry of spin labels. We have studied the mesophile . and the thermophile . and made comparative measurements at both of their respective temperatures of growth.作者: HERTZ 時(shí)間: 2025-3-22 15:46 作者: HERTZ 時(shí)間: 2025-3-22 18:51
https://doi.org/10.1007/978-3-662-05674-5 is embedded in the cytoplasmic membrane (Olson, 1960). In the reaction center a portion of the photon energy is conserved by a series of electron transfer reactions, and the products of these reactions are used to drive cellular processes.作者: Arctic 時(shí)間: 2025-3-23 00:33
https://doi.org/10.1007/978-1-349-26729-3s already provided by Pierson and Castenholz (1974) who measured the optical difference spectrum of the photo-oxidation of the primary electron donor P865 of ., which spectrum was found to be much more similar to that of P870 of purple bacteria than to that of P840 in green sulfur bacteria.作者: Classify 時(shí)間: 2025-3-23 04:26
Interaction of Radiation with Matter, autotrophs (Quayle and Ferenci, 1976), but during recent years several autotrophs have been shown to Lack the key enzymes of the reductive pentose phosphate cycle and thus use other mechanisms for CO. fixation.作者: 漂亮 時(shí)間: 2025-3-23 06:00 作者: gnarled 時(shí)間: 2025-3-23 11:05
Daisuke Ito,Kazuki Hase,Yasushi Saito ., BL and HL, and BM and HM, respectively (Allen et al., 1986). The pigments form two prosthetic chains: P-BL-HL-Q. and P-BM-HM-Q. where Q. and Q. are the primary and secondary quinones. Only one chain P-BL-HL-Q. is photochemically active (Shuvalov et al., 1986a).作者: 事與愿違 時(shí)間: 2025-3-23 17:18
Ground-State Molecular Interactions of Bacteriochlorophyll , in Chlorosomes of Green Bacteria and in5; Gerola et al., 1988). These associations however must be somewhat weaker than in intrinsic membrane antenna complexes, considering the ease with which BChl c can be washed from chlorosomes (Feick and Fuller, 1984), and the fact that it has not yet been possible to extract any intact BChl .-protein from chlorosomes.作者: 過(guò)份艷麗 時(shí)間: 2025-3-23 18:50 作者: 委托 時(shí)間: 2025-3-23 23:05
Energy Trapping and Electron Transfer in , is embedded in the cytoplasmic membrane (Olson, 1960). In the reaction center a portion of the photon energy is conserved by a series of electron transfer reactions, and the products of these reactions are used to drive cellular processes.作者: Embolic-Stroke 時(shí)間: 2025-3-24 02:51
Electron Transfer in the Reaction Center of Green Sulfur Bacteria and ,s already provided by Pierson and Castenholz (1974) who measured the optical difference spectrum of the photo-oxidation of the primary electron donor P865 of ., which spectrum was found to be much more similar to that of P870 of purple bacteria than to that of P840 in green sulfur bacteria.作者: ALIAS 時(shí)間: 2025-3-24 06:53 作者: COWER 時(shí)間: 2025-3-24 12:48 作者: 不自然 時(shí)間: 2025-3-24 17:29 作者: 分開(kāi) 時(shí)間: 2025-3-24 21:11 作者: 我就不公正 時(shí)間: 2025-3-25 01:27
IntroductionGreen photosynthetic bacteria have traditionally included only green sulfur bacteria (Chlorobiaceae) and green filamentous bacteria (Chloroflexaceae), but in this volume are included also the recently-discovered heliobacteria (Gram-positive line), whose reaction centers are strikingly simitar to those of the green sulfur bacteria.作者: aggravate 時(shí)間: 2025-3-25 04:28 作者: assent 時(shí)間: 2025-3-25 08:34
Picosecond Energy Transfer Kinetics in Chlorosomes and Bacteriochlorophyll ,-Proteins of ,In this paper we report a picosecond absorption spectroscopy study of the energy transfer and excited state lifetimes of two Light-harvesting complexes, namely chlorosomes and the BChl a-protein of the green sulfur bacterium . f. . (strain Tassajara).作者: 可卡 時(shí)間: 2025-3-25 14:51
Andrzej Moniuszko,B. Adrian Kesala “.553”, which consists of a 47-kDa subunit containing a single covalentty bound FRO and a 11-kDa subunit containing a single heme c (Meyer et al., 1986; Yamanaka, 1976; Yamanaka et al., 1979), has been demonstrated to catalyze electron flow from sulfide to Cyt “.555” (Kusai and Yamanaka, 1973, 1978; Kusai and Fukumori, 1980).作者: 公共汽車 時(shí)間: 2025-3-25 17:54 作者: PANG 時(shí)間: 2025-3-25 21:22 作者: 考古學(xué) 時(shí)間: 2025-3-26 03:27 作者: 惡意 時(shí)間: 2025-3-26 08:01 作者: 我正派 時(shí)間: 2025-3-26 11:59 作者: OUTRE 時(shí)間: 2025-3-26 14:05 作者: declamation 時(shí)間: 2025-3-26 20:24
The Mechanism of Photosynthetic Electron Transport and Energy Transduction by Membrane Fragments fropH 6.1 of + 360 mV whereas a membrane-bound photooxidizable c-type cytochrome (.554) that serves as the electron donor to P870 has its E. 8.1 around + 260 mV. This cytochrome has subsequently been isolated and found to contain two spectrally identical but thermodynamically distinct hemes with E. of 作者: hazard 時(shí)間: 2025-3-27 00:24
Electron Transport Chains of Phototrophically and Chemotrophically Grown ,ruce et at., 1982; Wynn et at., 1987; Pierson, 1985; Zannoni and Ingledew, 1986; Zannoni, 1986). We have characterized the membrane-bound components of the electron transfer chains of both phototrophicatly and chemotrophicalLy grown .. Particular attention has been placed on the cytochrome and iron-作者: 的闡明 時(shí)間: 2025-3-27 02:26
Normative und historische Betrachtungsweise,orosome contains some BChl a-protein, not identical to that present in the baseplate CBerola and Olson, 1966), ted to a slightly modified model (Fig. 1). The baseplate BChl a-protein from the related bacterium, ., has been crystallized and its structure determined by X-ray techniques at 0.19-nm reso作者: LARK 時(shí)間: 2025-3-27 08:13
https://doi.org/10.1007/978-3-030-89877-9 detailed biochemical analysis and characterization of antenna complexes was performed for .., particularly by Feick and Fuller (1964). They also identified 5 polypeptides, one antenna polypeptide of the intramembrane antenna complex, and 2 antenna polypeptides, the BChl c-binding polypeptide, the 5作者: plasma-cells 時(shí)間: 2025-3-27 11:33
https://doi.org/10.1007/978-981-10-8363-1, 1982). Excitation is transferred from BChl . 808 to BChl . 866 with an efficiency close to 100% (Vasmel et at., 1986). Emission spectra of isolated chlorosomes on excitation of BChl . show bands of both BChl . and BChl ., indicating the transfer of excitation energy from the former to the latter p作者: N防腐劑 時(shí)間: 2025-3-27 16:33
Sheldon Landsberger,Gary Swift,Jon Neuhoffnown PSUs) and the high quantum yield of primary charge separation in the reaction center (RC) (Fetisova and Borisov, 1960) this family of organisms is most promising (Fetisova and Fok, 1964) in the search for the fundamental principles of the PSU structural organization which provide large and high作者: 的’ 時(shí)間: 2025-3-27 18:17
Glen W. Hamilton,J. Ward Kennedy RDMR. This allows one to discriminate between T — 5 spectra of the various triplet states when present in one complex by selecting the appropriate microwave transition frequency. The T — S spectra of PP, Repp and CC complexes are shown in Figs. 1 and 2. The corresponding linear dichroic CLD—CT — S)作者: Recessive 時(shí)間: 2025-3-28 00:58
https://doi.org/10.1007/978-94-011-2826-1pH 6.1 of + 360 mV whereas a membrane-bound photooxidizable c-type cytochrome (.554) that serves as the electron donor to P870 has its E. 8.1 around + 260 mV. This cytochrome has subsequently been isolated and found to contain two spectrally identical but thermodynamically distinct hemes with E. of 作者: WATER 時(shí)間: 2025-3-28 05:54 作者: 虛弱 時(shí)間: 2025-3-28 09:44
Normative und historische Betrachtungsweise,ys contained vesicle-like elements connected with the cytoplasmic membrane. Upon fractionation these elements turned out to be associated with a fraction that contained a very high specific chlorophyll content. These observations led to the assumption that these vesicles were the site of the photosy作者: Aggressive 時(shí)間: 2025-3-28 11:04
Novelty, Information and Surpriseoflexaceae) are localised in chlorosomes (Sprague and Varga, 1986). These are flattened cylinders attached to the cellular membrane. They comprise a core of hydrophobic BChl .-binding proteins and an envelope of lipid arranged as a monolayer (Staehelin et al., 1978, 1980). Such a monolayer is an unu作者: colony 時(shí)間: 2025-3-28 17:15 作者: Condense 時(shí)間: 2025-3-28 20:56
https://doi.org/10.1007/978-3-031-10019-2ted to cytotogically different structures, but also fulfil different functions in the photosynthetic apparatus of . (Fuller and Redlinger, 1965). While BChl a-protein complexes constitute light-harvesting and photochemical reaction-center units located in the cytoplasmic membrane, BChl c-protein com作者: Matrimony 時(shí)間: 2025-3-29 00:25
https://doi.org/10.1007/978-3-030-89877-9ganized pigment-polypeptide system. It is comprised of an aggregate of antenna complexes which in turn consist of specific arrays of polypeptides or pigments. This particular organization is the basis for the very effective heterogeneous energy transfer within and between these complexes (Zuber, 196作者: PANT 時(shí)間: 2025-3-29 04:00 作者: GLOSS 時(shí)間: 2025-3-29 08:01
https://doi.org/10.1007/978-981-10-8363-1somes contain BChl ., ., or . as the major tight-harvesting pigment and a small amount of BChl . (1-5% of the BChl . content) (Schmidt, 1980; Feick et al., 1982; Gerola and Olson, 1986; van Dorssen et al., 1986a,b). In addition to the chlorosome the light-harvesting system of the green photosyntheti作者: 含沙射影 時(shí)間: 2025-3-29 11:47
Sheldon Landsberger,Gary Swift,Jon NeuhoffOlson, 1980; Fetisova and Borisov, 1960; Betti et al., 1962; Wechsler et al., 1964; flmesz, 1965; Zuber, 1965; Amesz and Vasmel, 1986; van Dorssen et al., 1986a,b; Fetisova et al., 1966; Fetisova et al., 1967). In these studies the progress of preparative biochemistry proved to be decisive, since a 作者: Chameleon 時(shí)間: 2025-3-29 18:51 作者: Expressly 時(shí)間: 2025-3-29 20:31 作者: 盡忠 時(shí)間: 2025-3-30 01:30
Glen W. Hamilton,J. Ward Kennedyex (PP), 3) the reaction—center—pigment protein complex (RCPP), 4) the Light—harvesting water—soluble antennai complex (LHP). The RCPP complex contains the reaction center (RC), the core complex and SUbunits of LHP J all membrane—bound; the PP complex contains in addition two loosely bound LHP molec作者: 啪心兒跳動(dòng) 時(shí)間: 2025-3-30 07:16
Evidence-Based and Nuclear Cardiology,reduction (Trüper and Fischer, 1962). Depending on how sulfur compounds are metabolized by anoxyphotobacteria, they can either be oxidized or reduced. Electron-transfer proteins are thus necessary for these redox reactions. Green sulfur bacteria contain various soluble cytochromes and iron-sulfur pr作者: 表示向下 時(shí)間: 2025-3-30 10:38
Andrzej Moniuszko,B. Adrian Kesala “.553”, which consists of a 47-kDa subunit containing a single covalentty bound FRO and a 11-kDa subunit containing a single heme c (Meyer et al., 1986; Yamanaka, 1976; Yamanaka et al., 1979), has been demonstrated to catalyze electron flow from sulfide to Cyt “.555” (Kusai and Yamanaka, 1973, 1978作者: 不自然 時(shí)間: 2025-3-30 12:46
https://doi.org/10.1007/978-94-011-2826-1rangement and the presence of two bacteriochlorophyll types, BChl . and species-dependent BChl ., . or . are characteristic for all green bacteria (. and .). In ., the photochemical reaction centers and a BChl .-containing light-harvesting complex with absorption maxima at 866 nm and 608 nm are loca作者: 假 時(shí)間: 2025-3-30 19:43 作者: 羞辱 時(shí)間: 2025-3-30 23:32 作者: 放肆的我 時(shí)間: 2025-3-31 03:01 作者: 沉思的魚(yú) 時(shí)間: 2025-3-31 09:01
Spin Label Studies on Chlorosomes from Green Bacteriaoflexaceae) are localised in chlorosomes (Sprague and Varga, 1986). These are flattened cylinders attached to the cellular membrane. They comprise a core of hydrophobic BChl .-binding proteins and an envelope of lipid arranged as a monolayer (Staehelin et al., 1978, 1980). Such a monolayer is an unu作者: 不合 時(shí)間: 2025-3-31 10:21 作者: Offstage 時(shí)間: 2025-3-31 16:32 作者: 不理會(huì) 時(shí)間: 2025-3-31 21:20 作者: 音的強(qiáng)弱 時(shí)間: 2025-3-31 22:49
Energy Trapping and Electron Transfer in ,membrane. These complexes contain BChl ., . or . and function by absorbing tight energy and transferring it to the photochemical reaction center which is embedded in the cytoplasmic membrane (Olson, 1960). In the reaction center a portion of the photon energy is conserved by a series of electron tra作者: 我沒(méi)有命令 時(shí)間: 2025-4-1 03:18 作者: DAUNT 時(shí)間: 2025-4-1 06:03
Excitation Energy Transfer in Living Cells of the Green Bacterium , Studied by Picosecond FluorescenOlson, 1980; Fetisova and Borisov, 1960; Betti et al., 1962; Wechsler et al., 1964; flmesz, 1965; Zuber, 1965; Amesz and Vasmel, 1986; van Dorssen et al., 1986a,b; Fetisova et al., 1966; Fetisova et al., 1967). In these studies the progress of preparative biochemistry proved to be decisive, since a 作者: goodwill 時(shí)間: 2025-4-1 12:46
Electron Transfer in the Reaction Center of Green Sulfur Bacteria and , green sulfur bacteria (Chtorobiaceae) and the green gliding bacteria (Chloroftexaceae) are in many respects different. The first evidence for this was already provided by Pierson and Castenholz (1974) who measured the optical difference spectrum of the photo-oxidation of the primary electron donor
