Results 1 to 10 of about 1,210 (138)

Microbial Diversity Across Chemolithotrophic and Phototrophic Biofilms in Cold Sulfur Springs [PDF]

MicrobiologyOpen
Sulfur‐rich environments host specialized microbial communities that drive key biogeochemical processes, particularly sulfur cycling. While sulfur‐oxidizing microbiota from hydrothermal vents and volcanic systems are well studied, microbial communities ...
David M. Frings, James M. Mellinger, Kevin M. Drace   +2 more
doaj   +3 more sources

Motile bacteria leverage bioconvection for eco-physiological benefits in a natural aquatic environment [PDF]

Frontiers in Microbiology, 2023
IntroductionBioconvection, a phenomenon characterized by the collective upward swimming of motile microorganisms, has mainly been investigated within controlled laboratory settings, leaving a knowledge gap regarding its ecological implications in natural
Francesco Di Nezio, Francesco Di Nezio, Samuele Roman, Samuele Roman, Antoine Buetti-Dinh, Oscar Sepúlveda Steiner, Oscar Sepúlveda Steiner, Damien Bouffard, Damien Bouffard, Anupam Sengupta, Nicola Storelli, Nicola Storelli   +11 more
doaj   +3 more sources

A Novel View of the Diversity of Anoxygenic Phototrophic Bacteria Inhabiting the Chemocline of Meromictic Karst Lakes [PDF]

Microorganisms, 2023
The rates of oxygenic and anoxygenic photosynthesis, the microorganisms responsible for these processes, and the hydrochemical characteristics of the sulfide-containing karst lakes, Black Kichier and Big Kichier (Mari El Republic), were investigated.
Vladimir Gorlenko, Alexander Savvichev, Vitaly Kadnikov, Igor Rusanov, Alexey Beletsky, Elena Zakharova, Nadezhda Kostrikina, Pavel Sigalevich, Elena Veslopolova, Nikolay Pimenov   +9 more
doaj   +2 more sources

Bacterial, Phytoplankton, and Viral Distributions and Their Biogeochemical Contexts in Meromictic Lake Cadagno Offer Insights into the Proterozoic Ocean Microbial Loop [PDF]

mBio, 2022
Lake Cadagno, a permanently stratified high-alpine lake with a persistent microbial bloom in its chemocline, has long been considered a model for the low-oxygen, high-sulfide Proterozoic ocean.
Jaspreet S. Saini, Christel Hassler, Rachel Cable, Marion Fourquez, Francesco Danza, Samuele Roman, Mauro Tonolla, Nicola Storelli, Stéphan Jacquet, Evgeny M. Zdobnov, Melissa B. Duhaime   +10 more
doaj   +2 more sources

Vertical structure of the bacterial diversity in meromictic Fayetteville Green Lake. [PDF]

Microbiologyopen, 2021
In this study, we investigated the bacterial communities of the upper 25 m of meromictic Fayetteville Green Lake (New York, NY, USA). We found a diverse assemblage of phototrophic and chemotrophic sulfur bacteria. The distribution of these microorganisms and their inferred metabolisms, along with limnological and geochemical context, can help expand ...
Block KR, O'Brien JM, Edwards WJ, Marnocha CL.   +3 more
europepmc   +2 more sources

Genomics, transcriptomics, and laboratory experiments link bioconvection to nitrogen fixation [PDF]

Frontiers in Microbiology
IntroductionLake Cadagno is a meromictic lake characterized by a stable euxinic chemocline that hosts a diverse community of anoxygenic phototrophic sulfur bacteria, among the earliest photosynthetic organisms on Earth.
Francesco Di Nezio, Francesco Di Nezio, Juan Diaz-Miyar, Antoine Buetti-Dinh, Samuele Roman, Samuele Roman, Tommaso Fava, Daniele Paganini, Nicola Storelli, Nicola Storelli   +9 more
doaj   +2 more sources

Bacterial Adhesion on Soft Surfaces: The Dual Role of Substrate Stiffness and Bacterial Growth Stage [PDF]

Microorganisms
The surface adhesion and stiffness of underlying substrates mediate the geometry, mechanics, and self-organization of expanding bacterial colonies. Recent studies have qualitatively indicted that stiffness may impact bacterial attachment and accumulation,
René Riedel, Garima Rani, Anupam Sengupta   +2 more
doaj   +2 more sources

Biological Routes for Biohydrogen Production: A Clean and Carbon-Free Fuel. [PDF]

Biotechnol J
Graphical Abstract and Lay Summary Biological routes for hydrogen (H2) production are mainly classified into four pathways: 1) direct bio‐photolysis, 2) indirect bio‐photolysis, 3) photo‐fermentation, and 4) dark fermentation. Of these pathways, dark fermentation produces the highest levels of H2 production.
Cha M, Park MS, Kim SJ.
europepmc   +2 more sources

Possibilities and prospects of bioplastics production from agri-waste using bacterial communities: Finding a silver-lining in waste management [PDF]

Current Research in Microbial Sciences
To meet the need of the growing global population, the modern agriculture faces tremendous challenges to produce more food as well as fiber, timber, biofuels, etc.; hence generates more waste. This continuous growth of agricultural waste (agri-waste) and
Mamun Mandal, Anamika Roy, Debasis Mitra, Abhijit Sarkar   +3 more
doaj   +2 more sources

Surface Structure of Chromatium okenii and Chromatium weissei [PDF]

Journal of Bacteriology, 1971
The outermost structured layer of both Chromatium weissei and C. okenii is composed of a hexagonal array of hollow cone-shaped subunits approximately 25 nm in length and 13 nm in diameter.
G J, Hageage, R L, Gherna
openaire   +2 more sources