Results 91 to 100 of about 39,604 (271)

Absence of evidence for viral infection in colony-embedded cyanobacterial isolates from the Curonian Lagoon

open access: yesOceanologia, 2014
The aim of the present study was to assess the frequency of viral infections in colony-embedded cells of the cyanobacteria Aphanizomenon flos-aquae and Microcystis aeruginosa collected from the brackish Curonian Lagoon. Natural and mitomycin C-treated A.
Sigitas Sulcius   +2 more
doaj   +1 more source

Nonlinear Protein Degradation and the Function of Genetic Circuits

open access: yes, 2005
The functions of most genetic circuits require sufficient degrees of cooperativity in the circuit components. While mechanisms of cooperativity have been studied most extensively in the context of transcriptional initiation control, cooperativity from ...
Ali Azam   +43 more
core   +2 more sources

A Bacterial Sulfotransferase Catalyzes an Unusual Di‐Sulfation in Natural Products Biosynthesis

open access: yesChemBioChem, EarlyView.
Herein, a unique sulfotransferase, AdpST, is identified from the adp biosynthetic gene clusters (BGC) in Streptomyces davaonensis DSM101723 and demonstrates that AdpST possesses di‐sulfation activity, which is unprecedented for bacterial phosphoadenosine‐5’‐phosphosulfate (PAPS)‐dependent sulfotransferases. It is further shown that the adp BGC contains
Conor Pulliam   +5 more
wiley   +1 more source

LYSOGENY AND LYSOSENSITIVITY IN SALMONELLA STRAINS

open access: yesAgricultura, 2017
Bacteriophages are viruses pathogenic to bacteria, that is, “bacteria eaters”. The results of the activity of the phage to bacterial cells manifests itself through the following phenomena: (a) The bacterial cell is lysosensitive (it allows the phage to ...
Nicolae Mocuța   +3 more
doaj   +1 more source

Diversity and Host Interactions among Virulent and Temperate Baltic Sea Flavobacterium Phages

open access: yesViruses, 2020
Viruses in aquatic environments play a key role in microbial population dynamics and nutrient cycling. In particular, bacteria of the phylum Bacteriodetes are known to participate in recycling algal blooms.
Emelie Nilsson   +4 more
doaj   +1 more source

Soil Viruses: A New Hope. [PDF]

open access: yes, 2019
As abundant members of microbial communities, viruses impact microbial mortality, carbon and nutrient cycling, and food web dynamics. Although most of our information about viral communities comes from marine systems, evidence is mounting to suggest that
Emerson, Joanne B
core  

A Thermostable Bacterial Metallohydrolase that Degrades Organophosphate Plasticizers

open access: yesChemBioChem, EarlyView.
This bacterial enzyme, cyclase‐phosphotriesterase (C‐PTE) from Ruegeria pomeroyi DSS‐3, shows significant potential for breaking down organophosphate pollutants. Beyond its capability to hydrolyze specific plasticizers such as triphenyl phosphate and tris(2‐chloropropyl) phosphate, C‐PTE's crystal structure reveals a binuclear zinc active site, and it ...
Dawei Ji   +5 more
wiley   +1 more source

Mathematical Modeling of CRISPR-CAS system effects on biofilm formation [PDF]

open access: yesarXiv, 2016
Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR), linked with CRISPR associated (CAS) genes, play a profound role in the interactions between phage and their bacterial hosts. It is now well understood that CRISPR-CAS systems can confer adaptive immunity against bacteriophage infections.
arxiv  

Mining Thermophile Genomes for New PETases with Exceptional Thermostabilities Using Sequence Similarity Networks

open access: yesChemBioChem, EarlyView.
Targeted genome mining identified thermostable enzymes (PETases) that hydrolyze the commonly used plastic polymer polyethylene terephthalate (PET). Thermostable enzymes are identified from thermophilic microbial sources. Experimental results reveal enzymatic activity on authentic PET films, highlighting potential for industrial application.
Zhenyu Hu   +4 more
wiley   +1 more source

High Incidence of Lysogeny in the Oxygen Minimum Zones of the Arabian Sea (Southwest Coast of India)

open access: yesViruses, 2018
Though microbial processes in the oxygen minimum zones (OMZs) of the Arabian Sea (AS) are well documented, prokaryote-virus interactions are less known.
Ammini Parvathi   +8 more
doaj   +1 more source

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