Results 91 to 100 of about 3,035,697 (304)

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

FEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

Distribution and diversity of bacterial secretion systems across metagenomic datasets [PDF]

, 2012
Bacteria can manipulate their surrounding environment through the secretion of proteins into other living organisms and into the extracellular milieu. In Gram stain negative bacteria this process is mediated by different types of secretion systems from ...
Egan, F., Barret, M., O'Gara, Fergal, Egan, Frank, O’Gara, Fergal, Barret, Matthieu   +5 more
core   +2 more sources

How Do Soil Bacterial Diversity and Community Composition Respond under Recommended and Conventional Nitrogen Fertilization Regimes?

Microorganisms, 2020
Shifts in soil bacterial diversity and community composition are suggested to be induced by elevated input of nitrogen (N) fertilization with implications for soil quality, and consequently production.
Sami Ullah, Ping He, Chao Ai, Shicheng Zhao, Wencheng Ding, Dali Song, Jiajia Zhang, Shaohui Huang, Tanveer Abbas, Wei Zhou   +9 more
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

FEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

Bacterial Strain Diversity Within Wounds [PDF]

Advances in Wound Care, 2015
Significance: Rare bacterial taxa (taxa of low relative frequency) are numerous and ubiquitous in virtually any sample-including wound samples. In addition, even the high-frequency genera and species contain multiple strains. These strains, individually, are each only a small fraction of the total bacterial population.
openaire   +2 more sources

Trait-based responses of Gram-positive and Gram-negative soil bacteria to grazing intensity in steppe ecosystems

Еуразиялық агротехникалық журнал
Background and Aim. Steppe pastures of Central Asia are exposed to long-term grazing pressure that can modify soil properties and belowground microbial communities.
Meruyert B. Tastybay, Deli Wang, Ashimkhan T. Kanaev, Kanysh I. Kushenov, Ainur I. Seitbattalova   +4 more
doaj   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

FEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Influence of Two Root Media and Three Vermicompost Amendments on Bacterial Communities in a Greenhouse Container Garden Model System

Microorganisms
The aim of this study was to determine the impact of two root media and three vermicompost amendments on the root zone bacterial communities and harvest mass of lettuce grown in a greenhouse container garden model system.
Sihan Bu, Nikita H. Nel, Alyssa W. Beavers, Kameron Y. Sugino, Katherine Alaimo, John A. Biernbaum, Sarah S. Comstock   +6 more
doaj   +1 more source

Influence of phragmites density, algal concentration and water velocity on cyanobacterial bloom dynamics [PDF]

PeerJ
Background Cyanobacterial blooms present a significant global water challenge, often accumulating in lakeside wetlands and impacting water quality.
Jiaming Lv, Guijun Yang, Yuqing Zhang, Keqiang Shao, Xiangming Tang   +4 more
doaj   +2 more sources

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

FEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise, Tiziano Mazza, Raffaella Scanga, Lara Console, Michele Galluccio, Cesare Indiveri   +5 more
wiley   +1 more source