Results 41 to 50 of about 5,937 (149)

A Spontaneous Mutation in tfoX Impairs Bioluminescence in Photobacterium kishitanii ANT‐2200

Molecular Microbiology, EarlyView.
A frameshift mutation in tfoX generates a truncated regulator associated with reduced lux–rib expression and low luminescence. Complementation with wild‐type tfoX restores transcription and light production, supporting a role for TfoX in regulating bioluminescence independently of quorum sensing.
Capucine Le Cam Ligier, Gwenola Simon, Charlotte Berthelier, Corinne Valette, Elisa Lefeuvre, Marc Garel, Laurie Casalot   +6 more
wiley   +1 more source

Dissecting the immune response to the entomopathogen Photorhabdus [PDF]

, 2010
Bacterial pathogens either hide from or modulate the host's immune response to ensure their survival Photorhabdus is a potent insect pathogenic bacterium that uses entomopathogenic nematodes as vectors in a system that represents a useful tool for ...
Ffrench-Constant, R H, Andrea J. Dowling, Reynolds, Stuart E, Richard H. ffrench-Constant, Ioannis Eleftherianos, David J. Clarke, Dowling, A J, Stuart E. Reynolds, Eleftherianos, I, Clarke, D J   +9 more
core   +1 more source

The Lord of the Rings: Cysteine bonds crosslink the tail of siphovirus

Protein Science, Volume 35, Issue 10, October 2026.
Abstract Long, non‐contractile tails composed of helical hexameric protein repeats that assemble into continuous tubular structures characterize siphoviruses. The siphovirus tail tube protein gp39 contains two cysteine residues per monomer. Cryo‐electron microscopy revealed that these cysteines are oriented toward the interface between the rings, which
Simona Povilonienė, Giedrius Sasnauskas, Giedrė Tamulaitienė, Greta Labutytė, Martynas Talaikis, Algirdas Mikšys, Aurelija Zajančkauskaitė, Lidija Truncaitė, Rolandas Meškys, Vida Časaitė   +9 more
wiley   +1 more source

The cloning , expression and characterisation of bacterial chitin-binding proteins from pseudomonas aeruginosa , serratia marcescens, photorhabdus luminescens and photorhabdus asymbiotica. [PDF]

, 2011
It is well recognised that most proteins are subject to post translational modifications and that these modifications can have specific effects on the biological properties and functions of these proteins.
Larragy, Ruth
core   +2 more sources

Isolation and identification of Xenorhabdus and Photorhabdus bacteria associated with entomopathogenic nematodes and their larvicidal activity against Aedes aegypti

Parasites & Vectors, 2017
Background Aedes aegypti is a potential vector of West Nile, Japanese encephalitis, chikungunya, dengue and Zika viruses. Alternative control measurements of the vector are needed to overcome the problems of environmental contamination and chemical ...
Chamaiporn Fukruksa, Thatcha Yimthin, Manawat Suwannaroj, Paramaporn Muangpat, Sarunporn Tandhavanant, Aunchalee Thanwisai, Apichat Vitta   +6 more
doaj   +1 more source

Biosynthese des vollständig gesättigten C16‐Homosesquiterpens Descartan durch Deprotonierung mit Cyclopropanierung

Angewandte Chemie, Volume 138, Issue 38, 14 September 2026.
Eine nicht‐kanonische C16‐Sesquiterpensynthase aus Morganella morganii produziert das ungewöhnliche Grundgerüst Descartan. Ihr Cyclisierungsmechanismus wurde mittels Isotopenmarkierungsexperimenten und DFT‐Berechnungen aufgeklärt. Gezielte Mutagenese veränderte die Enzymfunktion und führte zu alternativen Produkten, darunter Voltairen, dessen ...
Kexin Yang, Philip Troycke, Bernd Goldfuss, Michael Groll, Jeroen S. Dickschat   +4 more
wiley   +1 more source

LuxS-dependent AI-2 production is not involved in global regulation of natural product biosynthesis in Photorhabdus and Xenorhabdus [PDF]

PeerJ, 2017
The Gram-negative bacteria Photorhabdus and Xenorhabdus are known to produce a variety of different natural products (NP). These compounds play different roles since the bacteria live in symbiosis with nematodes and are pathogenic to insect larvae in the
Antje K. Heinrich, Merle Hirschmann, Nick Neubacher, Helge B. Bode   +3 more
doaj   +2 more sources

Biosynthesis of the Fully Saturated C16 Homosesquiterpene Descartane Through Deprotonation With Cyclopropanation

Angewandte Chemie International Edition, Volume 65, Issue 38, 14 September 2026.
A non‐canonical C16 sesquiterpene synthase from Morganella morganii produces the unusual scaffold descartane. Its cyclisation mechanism was rationalised by isotopic labelling experiments and DFT calculations. Site‐directed mutagenesis altered enzyme function, resulting in alternative products, including voltairene, which requires a different ...
Kexin Yang, Philip Troycke, Bernd Goldfuss, Michael Groll, Jeroen S. Dickschat   +4 more
wiley   +1 more source

Two Philippine Photorhabdus luminescens strains inhibit the in vitro growth of Lasiodiplodia theobromae, Fusarium oxysporum f. sp. lycopersici, and Colletotrichum spp.

Egyptian Journal of Biological Pest Control, 2021
Background Fungal phytopathogens are one of the leading causes of loss in global food production. Chemical fungicides have always been used to control the phytopathogens to mitigate losses.
Samantha Izabelle R. Alforja, Paolo Miguel B. Rico, Barbara L. Caoili, Romnick A. Latina   +3 more
doaj   +1 more source

Advances in large DNA fragment assembly for microbial cell factory engineering

Quantitative Biology, Volume 14, Issue 3, September 2026.
Abstract The efficient, rapid, and reliable assembly of DNA fragments is essential for advancing metabolic engineering and synthetic biology. With the rapid advancement of DNA synthesis and assembly technologies, the scale of DNA assembly has expanded from single genes to metabolic pathways and even genomes.
Yu Zhang, Wenqian Liu, Dongyuan Cheng, Jiazhang Lian, Xian Fu, Yue Shen   +5 more
wiley   +1 more source