Results 21 to 30 of about 1,204,088 (297)

Fossil carotenoids and paleolimnology of meromictic Mahoney Lake, British Columbia, Canada [PDF]

, 1993
Vertical distribution of fossil carotenoids in a sediment core from meromictic Mahoney Lake was studied. Besides okenone and demethylated okenone, lutein and zeaxanthin and-carotene isomers were identified.
Sandmann, Gerhard, Tom G. Northcote, Ken J. Hall, Haller, Ken J., Gerhard Sandmann, J�rg Overmann, Overmann, Jörg, Northcote, Tom G.   +7 more
core   +1 more source

Physiology of purple sulfur bacteria forming macroscopic aggregates in Great Sippewissett Salt Marsh, Massachusetts [PDF]

, 1993
Purple bacterial aggregates found in tidal pools of Great Sippewissett Salt Marsh (Falmouth, Cape Cod, MA) were investigated in order to elucidate the ecological significance of cell aggregation. Purple sulfur bacteria were the dominant microorganisms in
Seitz, A. P., Nielsen, T. H., Overmann, Jörg, A Seitz   +3 more
core   +1 more source

Biosynthesis of pinene in purple non-sulfur photosynthetic bacteria

Microbial Cell Factories, 2021
Background Pinene is a monoterpene, that is used in the manufacture of fragrances, insecticide, fine chemicals, and renewable fuels. Production of pinene by metabolic-engineered microorganisms is a sustainable method.
Xiaomin Wu, Guang Ma, Chuanyang Liu, Xin-yuan Qiu, Lu Min, Jingyu Kuang, Lingyun Zhu   +6 more
doaj   +1 more source

Properties and Crystal Structure of the Cereibacter sphaeroides Photosynthetic Reaction Center with Double Amino Acid Substitution I(L177)H + F(M197)H

Membranes, 2023
The photosynthetic reaction center of the purple bacterium Cereibacter sphaeroides with two site-directed mutations Ile-L177–His and M197 Phe–His is of double interest. The substitution I(L177)H results in strong binding of a bacteriochlorophyll molecule
Tatiana Yu. Fufina, Georgii K. Selikhanov, Azat G. Gabdulkhakov, Lyudmila G. Vasilieva   +3 more
doaj   +1 more source

Effects of ozone water on growth of Lactuca sativa var. ramosa Hort and Erwinia carotovora subsp. carotovora

上海师范大学学报. 自然科学版, 2017
Research on pathogenic bacteria growth of purple lettuce (Lactuca sativa var. ramosa) and its photosynthetic physiology by being sprayed ozone water on the surface of the purple lettuce with different concentration during the reproductive stage.
Guo Zhenghong, Wang Zuoming, Yin Lijun, Zhao Xuejun, Wang Wenjia, Wang Quanxi   +5 more
doaj   +1 more source

Effects of Mixing Volatile Fatty Acids as Carbon Sources on Rhodospirillum rubrum Carbon Metabolism and Redox Balance Mechanisms

Microorganisms, 2021
Rhodospirillum rubrum has a versatile metabolism, and as such can assimilate a broad range of carbon sources, including volatile fatty acids. These carbon sources are gaining increasing interest for biotechnological processes, since they reduce the ...
Paloma Cabecas Segura, Quentin De Meur, Audrey Tanghe, Rob Onderwater, Laurent Dewasme, Ruddy Wattiez, Baptiste Leroy   +6 more
doaj   +1 more source

Fine scale analysis of shifts in bacterial community structure in the chemocline of meromictic Lake Cadagno, Switzerland

Journal of Limnology, 2009
Phototrophic sulfur bacteria in the chemocline of Lake Cadagno, Switzerland, were dominated by purple sulfur bacteria before 1998, but their composition shifted after a presumed disturbance to consist of mainly green sulfur bacteria.
Mauro TONOLLA, Dittmar HAHN, Nadia RUGGERI-BERNARDI, Sandro PEDUZZI, Paola M.A. DECRISTOPHORIS   +4 more
doaj   +1 more source

New Approach for the Construction and Calibration of Gas-Tight Setups for Biohydrogen Production at the Small Laboratory Scale

Metabolites, 2021
Biohydrogen production in small laboratory scale culture vessels is often difficult to perform and quantitate. One problem is that commonly used silicon tubing and improvised plastic connections used for constructing apparatus are cheap and easy to ...
Caroline Autenrieth, Shreya Shaw, Robin Ghosh   +2 more
doaj   +1 more source

The structural basis of light‐harvesting in purple bacteria [PDF]

FEBS Letters, 2003
A typical purple bacterial photosynthetic unit consists of two types of light‐harvesting complex (LH1 and LH2) together with a reaction centre. This short review presents a description of the structure of the LH2 complex from Rhodopseudomonas acidophila, which has recently been improved to a resolution of 2.0 Å [Papiz et al., J. Mol. Biol.
Cogdell, Richard J., Isaacs, Neil W., Freer, Andrew A., Howard, Tina D., Gardiner, Alastair T., Prince, Steve M.; id_orcid 0000-0003-0929-0254, Papiz, Miroslavr Z.   +6 more
openaire   +2 more sources

CIRCULAR DICHROISM OF LIGHT-HARVESTING COMPLEXES FROM PURPLE PHOTOSYNTHETIC BACTERIA [PDF]

, 1985
The CD spectra of a range of antenna complexes from several different species of purple photosynthetic bacteria were recorded in the wavelength range of 190 to 930 nm. Analysis of the far UV CD (190 to 250 nm) showed that in each case except for the B800-
Scheer, Hugo, Richard J. Cogdell, Cogdell, Richard J., Hugo Scheer   +3 more
core   +1 more source