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Article
New strains of an aerobic anoxygenic phototrophic bacterium Porphyrobacter donghaensis isolated from a Siberian thermal spring and a weakly mineralized lake
A strain of aerobic anoxygenic phototrophic bacteria (AAPB) isolated from the surface of a cyanobacterial mat of an Eastern Siberian thermal spring (40°C) and designated Se-4 was identified as Porphyrobacter dong...
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Chapter and Conference Paper
A Regulation of Energy Flow in Purple Bacterial Photosynthetic Antennas
Ultrafast energy transfer dynamics in photosynthetic antennas were investigated by femtosecond pump-probe measurements. Photo-excited carotenoids with short-polyene chains efficiently transfer energy to bacter...
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Article
Carotenoids and carotenogenesis in cyanobacteria: unique ketocarotenoids and carotenoid glycosides
Cyanobacteria grow by photosynthesis, and necessarily contain chlorophyll and carotenoids, whose main functions are light harvesting and photoprotection. In this review, we discuss the carotenoids, carotenogen...
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Chapter
Discovery, Characteristics, and Distribution of Zinc-BChl in Aerobic Acidophilic Bacteria Including Acidiphilium Species and Other Related Acidophilic Bacteria
Chlorophylls (Chls or Mg-Chls) and bacteriochlorophylls (BChls or Mg-BChls) are the very important pigments in the natural photosynthesis converting solar energy to chemical energy since its evolution on the E...
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Chapter
Distribution of 9’-CIS Neoxanthin in Oxygenic Phototrophs: A Systematic Study
Neoxanthin is a widely distributed plant carotenoid. In 1969, neoxanthin, a major carotenoids of maple leaves, was proposed to be a 9’-cis form (Fig. 1), although an all-trans structure was illustrated in the pap...
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Article
The major carotenoid in all known species of heliobacteria is the C30 carotenoid 4,4′-diaponeurosporene, not neurosporene
The carotenoids of five species of heliobacteria (Heliobacillus mobilis, Heliophilum fasciatum, Heliobacterium chlorum, Heliobacterium modesticaldum, and Heliobacterium gestii) were examined by spectroscopic met...
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Article
New carotenoids from the thermophilic green sulfur bacterium Chlorobium tepidum: 1′,2′-dihydro-γ-carotene, 1′,2′-dihydrochlorobactene, and OH-chlorobactene glucoside ester, and the carotenoid composition of different strains
The complete carotenoid composition of the thermophilic green sulfur bacterium Chlorobium tepidum strain TNO was determined by spectroscopic methods. Major carotenoids were four kinds of carotenes: γ-carotene, c...
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Article
Histological changes in brain tissue and vasculature after intracarotid infusion of organic solvents in rats
Organic solvents, such as ethanol or dimethyl sulphoxide (DMSO), have been used in liquid embolic agents. To investigate the effects of these solvents on the cerebral blood vessels and cerebral tissue, we subj...
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Chapter and Conference Paper
Localization of Lipids and Cell Population in Atheromatous Lesions in Aorta and Its Main Arterial Branches in Patients with Hypercholesterolemia
To find clues to the mechanism of regression of atherosclerosis, we investigated the localization of lipids and cell populations in atheromatous lesions at arterial branches in patients with hypercholesterolem...
