Results 71 to 80 of about 6,378 (194)

Evidence of Vent-Adaptation in Sponges Living at the Periphery of Hydrothermal Vent Environments: Ecological and Evolutionary Implications

Frontiers in Microbiology, 2020
The peripheral areas of deep-sea hydrothermal vents are often inhabited by an assemblage of animals distinct to those living close to vent chimneys.
Magdalena N. Georgieva, Sergi Taboada, Sergi Taboada, Sergi Taboada, Ana Riesgo, Cristina Díez-Vives, Fabio C. De Leo, Fabio C. De Leo, Rachel M. Jeffreys, Jonathan T. Copley, Crispin T. S. Little, Crispin T. S. Little, Pilar Ríos, Pilar Ríos, Javier Cristobo, Javier Cristobo, Jon T. Hestetun, Adrian G. Glover   +17 more
doaj   +1 more source

Prebiotic aqueous reactions catalyzed by native nickel without hydrogen

The FEBS Journal, EarlyView.
Serpentinizing (H2‐producing) hydrothermal vents are candidate environments for metabolic origin. They generate highly reducing conditions that convert CO2 to formate and methane in abiotic reactions resembling reactions of the acetyl‐CoA pathway of CO2 fixation. They also contain natural catalysts. Native nickel (Ni0), like Fe0, Co0, and their alloys,
Carolina Garcia Garcia, Max Brabender, William F. Martin   +2 more
wiley   +1 more source

The Role of Oxidative Stress in Periodontitis

Journal of Periodontal Research, EarlyView.
Oxidative stress is involved in multiple chemical reactions that take place in different intracellular organelles: mitochondria, rough endoplasmic reticulum, peroxisomes, autophagy, and aging, and can be influenced by exogenous factors: nutrition, physical activity, psychological status, environmental conditions, microbiome, and drugs.
Pedro Bullon, Francesca Giampieri, Beatriz Bullon, Maurizio Battino   +3 more
wiley   +1 more source

Rhodopsin in the Dark Hot Sea: Molecular Analysis of Rhodopsin in a Snailfish, Careproctus rhodomelas, Living near the Deep-Sea Hydrothermal Vent. [PDF]

PLoS ONE, 2015
Visual systems in deep-sea fishes have been previously studied from a photobiological aspect; however, those of deep-sea fish inhabiting the hydrothermal vents are far less understood due to sampling difficulties.
Rie Sakata, Ryo Kabutomori, Keiko Okano, Hiromasa Mitsui, Akihiro Takemura, Tetsuya Miwa, Hiroyuki Yamamoto, Toshiyuki Okano   +7 more
doaj   +1 more source

Understanding marine biodiversity patterns and drivers: The fall of Icarus

Marine Ecology, EarlyView.
Abstract Biodiversity patterns are fundamental in our understanding of the distribution of life, ecosystem function, and conservation. In this concept analysis, A survey of the existing knowledge on marine biodiversity patterns and drivers across latitudes, longitudes, and depths indicates that none of the postulated patterns represent a rule.
Roberto Danovaro
wiley   +1 more source

Endemism shapes viral ecology and evolution in globally distributed hydrothermal vent ecosystems

Nature Communications
Viruses are ubiquitous in deep-sea hydrothermal vents, where they influence microbial communities and biogeochemistry. Yet, viral ecology and evolution remain understudied in these environments.
Marguerite V. Langwig, Faith Koester, Cody Martin, Zhichao Zhou, Samantha B. Joye, Anna-Louise Reysenbach, Karthik Anantharaman   +6 more
doaj   +1 more source

Search for impact ejecta at the Paleocene–Eocene boundary

Meteoritics &Planetary Science, EarlyView.
Abstract Almost 10 years have passed since microtektites and microkrystites were reported for the Paleocene–Eocene (P–E) boundary in drill cores and outcrop in New Jersey and in ODP Hole 1051B in the western North Atlantic. The glassy spherules were interpreted to reflect an impact trigger for the Paleocene–Eocene Thermal Maximum (PETM).
Birger Schmitz, Yue Cai, Shiyong Liao, Victoriano Pujalte, Ting Ruan, Robert P. Speijer, Ellen Thomas   +6 more
wiley   +1 more source

On the Potential for Bioenergy and Biofuels from Hydrothermal Vent Microbes [PDF]

Oceanography, 2012
The discovery of deep-sea hydrothermal vents caused scientists to reconsider their notions about life in the deep sea. In these seemingly inhospitable environments, free-living microbes, as well as microbial-animal symbioses, thrive in the warm waters ...
Peter R. Girguis, James F. Holden
doaj  

Engineered surface strategies to manage dental implant‐related infections

Periodontology 2000, EarlyView.
Abstract When exposed to the oral environment, dental implants, like natural surfaces, become substrates for microbial adhesion and accumulation, often leading to implant‐related infections—one of the main causes of implant failure. These failures impose significant costs on patients, clinicians, and healthcare systems.
João Gabriel S. Souza, Bruna E. Nagay, Rodrigo Martins, Martinna Bertolini, Jamil A. Shibli, Conrado Aparicio, Magda Feres, Valentim A. R. Barão   +7 more
wiley   +1 more source

Sedimentology of silica granules and haematite in the 3.47 Ga Antarctic Creek Member, Mount Ada Basalt, Western Australia

Sedimentology, EarlyView.
ABSTRACT The Paleoarchean Antarctic Creek Member of the Mount Ada Basalt, Eastern Pilbara Terrane, Western Australia, includes beds of jasper and white chert composed of sand‐sized silica granules that often contain or are mixed with silt‐sized particles of haematite.
Donald R. Lowe, Gary R. Byerly
wiley   +1 more source