Results 21 to 30 of about 22,834 (174)

Synthesis of High-Molecular-Weight Polyhydroxyalkanoates by Marine Photosynthetic Purple Bacteria. [PDF]

PLoS ONE, 2016
Polyhydroxyalkanoate (PHA) is a biopolyester/bioplastic that is produced by a variety of microorganisms to store carbon and increase reducing redox potential.
Mieko Higuchi-Takeuchi, Kumiko Morisaki, Kiminori Toyooka, Keiji Numata   +3 more
doaj   +1 more source

Evaluation of the relationship between color-tuning of photosynthetic excitons and thermodynamic stability of light-harvesting chromoproteins

Photosynthetica, 2023
Color-tuning is a critical survival mechanism for photosynthetic organisms. Calcium ions are believed to enhance both spectral tuning and thermostability in obligatory calcium-containing sulfur purple bacteria.
M. RÄTSEP, A. LEHTMETS, L. KANGUR, K. TIMPMANN, K. LEIGER, Z.-Y. WANG-OTOMO, A. FREIBERG   +6 more
doaj   +1 more source

Purple non-sulfur photosynthetic bacteria monitor environmental stresses [PDF]

Journal of Photochemistry and Photobiology B: Biology, 2015
Heavy metal ion pollution and oxygen deficiency are major environmental risks for microorganisms in aqueous habitat. The potential of purple non-sulfur photosynthetic bacteria for biomonitoring and bioremediation was assessed by investigating the photosynthetic capacity in heavy metal contaminated environments. Cultures of bacterial strains Rhodobacter
Kis Mariann, Sipka Gábor, Asztalos Emese, Rázga Zsolt, Maróti Péter   +4 more
openaire   +3 more sources

Photobioreactor Design for Polyhydroxyalkanoate Production Using Anoxygenic Photoheterotrophs: A Review

Fermentation, 2023
This review paper provides an overview of various types of photobioreactors (PBRs) that could be used for the production of polyhydroxyalkanoates (PHAs) using anoxygenic photoheterotrophs, with a focus on the design and operation of these systems.
Sultan Shaikh, Naim Rashid, Gordon McKay, Hamish Robert Mackey   +3 more
doaj   +1 more source

Phototropic sulfur and sulfate-reducing bacteria in the chemocline of meromictic Lake Cadagno, Switzerland

Journal of Limnology, 2004
Lake Cadagno, a crenogenic meromictic lake located in the catchment area of a dolomite vein rich in gypsum in the Piora Valley in the southern Alps of Switzerland, is characterized by a compact chemocline with high concentrations of sulfate, steep ...
Raffaele PEDUZZI, Dittmar HAHN, Antonella DEMARTA, Sandro PEDUZZI, Mauro TONOLLA   +4 more
doaj   +1 more source

Marine Purple Photosynthetic Bacteria as Sustainable Microbial Production Hosts

Frontiers in Bioengineering and Biotechnology, 2019
Photosynthetic microorganisms can serve as the ideal hosts for the sustainable production of high-value compounds. Purple photosynthetic bacteria are typical anoxygenic photosynthetic microorganisms and are expected to be one of the suitable ...
Mieko Higuchi-Takeuchi, Keiji Numata
doaj   +1 more source

Unique bacterial communities and lifestyles in deep ocean blue holes: Insights from the Yongle Blue Hole (South China Sea)

Frontiers in Marine Science, 2023
Deep ocean blue holes possess steep physicochemical gradients, especially low dissolved oxygen concentration, which shape the extraordinary microbial communities.
Shun Zhou, Jiwen Liu, Jiwen Liu, Jiwen Liu, Peng Yao, Liang Fu, Zuosheng Yang, Yulin Zhang, Rui Du, Chao Jia, Lin Chen, Jinchang Liang, Xiaolei Wang, Xiaochong Shi, Xiaochong Shi, Xiaochong Shi, Xiao-Hua Zhang, Xiao-Hua Zhang, Xiao-Hua Zhang, Min Yu, Min Yu, Min Yu   +21 more
doaj   +1 more source

Bistablity in Fluorescence from a purple non-sulfur bacteria [PDF]

, 2017
Abstract Bistable optical emission has been observed for photosynthetic purple non-sulfur bacteria Rhodobacter capsulatus SB1003. The microbes respond to UV excitation (at 395nm) in a bifurcating way one branch corresponding to increase and the other corresponding to diminishing ...
Bose, Anirban, Raja, Sufi O, Ray, Sanhita, Dasgupta, Anjan Kr   +3 more
openaire   +1 more source

A purple non-sulfur bacterium producing polyhydroxybutyrate and the conserved region of pha synthase gene

Bioscience Journal, 2016
This study aimed to screen purple non-sulfur bacteria capable of accumulating granules or polyhydroxybutyrate (PHB) inside the cells, identify the potent strain, assay the enzyme or PHA synthase, and compare the PHB synthase gene with that of related ...
Somporn Tanskul, Supaporn Srisai, Aekkaraj Nualla-Ong   +2 more
doaj   +3 more sources

Potential of Purple Non-Sulfur Bacteria in Sustainably Enhancing the Agronomic and Physiological Performances of Rice

Agronomy, 2022
Cereal grains and tubers are among the highly consumed staple foods globally; however, due to unfavorable weather conditions and the competition for natural resources, the major staple cereal crops, such as rice, are under production threat. On the other
Laurence Shiva Sundar, Yun-Yang Chao
doaj   +1 more source