Results 41 to 50 of about 29,104 (247)

Activation and modulation of the host response to DNA damage by an integrative and conjugative element

Journal of Bacteriology
Mobile genetic elements help drive horizontal gene transfer and bacterial evolution. Conjugative elements and temperate bacteriophages can be stably maintained in host cells.
Saria McKeithen-Mead, Mary E. Anderson, Alam García-Heredia, Alan D. Grossman   +3 more
doaj   +1 more source

Role of RecA and the SOS response in thymineless death in Escherichia coli. [PDF]

PLoS Genetics, 2010
Thymineless death (TLD) is a classic and enigmatic phenomenon, documented in bacterial, yeast, and human cells, whereby cells lose viability rapidly when deprived of thymine.
Natalie C Fonville, David Bates, P J Hastings, Philip C Hanawalt, Susan M Rosenberg   +4 more
doaj   +1 more source

A qnr-plasmid allows aminoglycosides to induce SOS in Escherichia coli

eLife, 2022
The plasmid-mediated quinolone resistance (PMQR) genes have been shown to promote high-level bacterial resistance to fluoroquinolone antibiotics, potentially leading to clinical treatment failures.
Anamaria Babosan, David Skurnik, Anaëlle Muggeo, Gerald B Pier, Zeynep Baharoglu, Thomas Jové, Marie-Cécile Ploy, Sophie Griveau, Fethi Bedioui, Sébastien Vergnolle, Sophie Moussalih, Christophe de Champs, Didier Mazel, Thomas Guillard   +13 more
doaj   +1 more source

High Center‐of‐Mass, Multi‐Legged Soft Robots Powered by Geometrically Encoded Liquid Crystal Elastomer Arc Appendages

Advanced Materials, EarlyView.
Inspired by the octopus and the golden wheel spider, soft robots with liquid crystal elastomer arc fibers as appendages are fabricated to transcend surface constraints through an elevated center of mass and minimal contact footprints. By leveraging curvature‐encoded deformation‐recovery cycles, these robots exhibit contractile, torsional, and flexural ...
Jong Bin Kim, Antonio Proctor Martinez, Yaoye Hong, Ziyun Zhang, Kun‐Yu Wang, Shu Yang   +5 more
wiley   +1 more source

Computational analysis of LexA regulons in Cyanobacteria

BMC Genomics, 2010
Background The transcription factor LexA plays an important role in the SOS response in Escherichia coli and many other bacterial species studied.
Su Zhengchang, Xu Minli, Li Shan
doaj   +1 more source

Comparison of Phenological Parameters Extracted from SIF, NDVI and NIRv Data on the Mongolian Plateau

Remote Sensing, 2022
The phenological parameters estimated from different data may vary, especially in response to climatic factors. Therefore, we estimated the start of the growing season (SOS) and the end of the growing season (EOS) based on sunlight-induced chlorophyll ...
Cha Ersi, Tubuxin Bayaer, Yuhai Bao, Yulong Bao, Mei Yong, Quan Lai, Xiang Zhang, Yusi Zhang   +7 more
doaj   +1 more source

Flexible Pressure Sensor With Co‐Optimized Sensitivity and Linearity Based on Gradient Toroidal Microstructures

Advanced Materials Technologies, EarlyView.
A flexible piezoresistive pressure sensor with gradient toroidal CNT/PDMS microstructures is reported. The hierarchical geometry enables sequential electrode contact, achieving a sensitivity of 256.20 kPa−1 and linear response (R2 = 0.99) over 0–1000 kPa.
Rongmei Wang, Ruolin Liu, Ming Lei, Yifan Liu, Fengming Hu, Bing Ji, Chao Peng, Jianyi Luo, Bingpu Zhou   +8 more
wiley   +1 more source

DNA damage response and cell cycle regulation in bacteria: a twist around the paradigm

Frontiers in Microbiology
The co-protease activity in the RecA-ssDNA complex cleaves the autorepressor LexA, resulting in the derepression of a large number of genes under LexA control.
Hari Sharan Misra, Yogendra Singh Rajpurohit, Yogendra Singh Rajpurohit   +2 more
doaj   +1 more source

RpoS plays a central role in the SOS induction by sub-lethal aminoglycoside concentrations in Vibrio cholerae. [PDF]

PLoS Genetics, 2013
Bacteria encounter sub-inhibitory concentrations of antibiotics in various niches, where these low doses play a key role for antibiotic resistance selection.
Zeynep Baharoglu, Evelyne Krin, Didier Mazel   +2 more
doaj   +1 more source

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

Advanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +1 more source