Results 111 to 120 of about 175,856 (292)

A Unifying Scenario on the Origin and Evolution of Cellular and Viral Domains [PDF]

open access: yes, 2009
The cellular theory on the nature of life has been one of the first major advancements in biology. Viruses, however, are the most abundant life forms, and their exclusion from mainstream biology and the Tree of Life (TOL) is a major paradox in biology ...
Claudiu I. Bandea
core   +1 more source

Whole-proteome tree of life suggests a deep burst of organism diversity. [PDF]

open access: yes, 2020
An organism tree of life (organism ToL) is a conceptual and metaphorical tree to capture a simplified narrative of the evolutionary course and kinship among the extant organisms.
Choi, JaeJin, Kim, Sung-Hou
core  

Microbial communities and functional diversity in seafood

open access: yesJSFA reports, EarlyView.
Abstract Functional diversity encompasses ecosystem processes that enhance adaptability to environmental change. This study explores the diversity of microorganisms associated with seafood. In this paper, we present our knowledge of microbial diversity in relation to seafood.
Christian Larbi Ayisi   +3 more
wiley   +1 more source

The Impacts of Triclosan on Anaerobic Community Structures, Function, and Antimicrobial Resistance [PDF]

open access: yes, 1999
Triclosan is a widespread antimicrobial agent that accumulates in anaerobic digesters used to treat the residual solids generated at municipal wastewater treatment plants; there is very little information, however, about how triclosan impacts microbial ...
McNamara, Patrick J.   +2 more
core   +2 more sources

Rational design of unrestricted pRN1 derivatives and their application in the construction of a dual plasmid vector system for Saccharolobus islandicus

open access: yesmLife
Saccharolobus islandicus REY15A represents one of the very few archaeal models with versatile genetic tools, which include efficient genome editing, gene silencing, and robust protein expression systems.
Pengpeng Zhao   +6 more
doaj   +1 more source

The oxygen‐sensing FixLJ represses nitrogen fixation in Rhodopseudomonas palustris in response to oxygen

open access: yesmLife, EarlyView.
Abstract Biological nitrogen fixation in symbiotic diazotrophs is subject to oxygen regulation by an oxygen‐sensing FixLJ two‐component system under micro‐oxic conditions. However, it remains unclear whether this mechanism is conserved in free‐living diazotrophs.
Lingwei Cui   +6 more
wiley   +1 more source

Flexible TAM requirement of TnpB enables efficient single-nucleotide editing with expanded targeting scope

open access: yesNature Communications
TnpBs encoded by the IS200/IS605 family transposon are among the most abundant prokaryotic proteins from which type V CRISPR-Cas nucleases may have evolved.
Xu Feng   +12 more
doaj   +1 more source

Early evolution of purple retinal pigments on Earth and implications for exoplanet biosignatures

open access: yes, 2018
We propose that retinal-based phototrophy arose early in the evolution of life on Earth, profoundly impacting the development of photosynthesis and creating implications for the search for life beyond our planet.
DasSarma, Shiladitya   +1 more
core   +1 more source

The Expanding Landscape of Microbiota Medicine: Indications, Therapeutic Modalities, and the Path Towards Integrative Microbiome‐Targeting Healthcare

open access: yesMicrobiota Medicine Research, EarlyView.
ABSTRACT The growing recognition of the microbiome's role in human health has propelled the emergence of microbiota medicine—a new discipline integrating microbiology, multi‐omics, and clinical science. Advances in sequencing, data integration, and interventions such as fecal microbiota transplantation (FMT) have transitioned the field from ...
Min Dai   +6 more
wiley   +1 more source

Multitrophic alpha and beta diversity of lake plankton across Canada

open access: yesOikos, EarlyView.
Anthropogenic environmental changes impact freshwater biodiversity globally. While biodiversity assessments in freshwater environments have traditionally focused on individual groups of organisms or trophic levels, considering patterns of ‘multitrophic biodiversity' across the food web provides a more comprehensive view of anthropogenic impacts and ...
Vincent Fugère   +6 more
wiley   +1 more source

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