Results 31 to 40 of about 991,295 (131)

Agrobacterium tumefaciens Deploys a Superfamily of Type VI Secretion DNase Effectors as Weapons for Interbacterial Competition In Planta [PDF]

Cell Host and Microbe, 2014
The type VI secretion system (T6SS) is a widespread molecular weapon deployed by many Proteobacteria to target effectors/toxins into both eukaryotic and prokaryotic cells. We report that Agrobacterium tumefaciens, a soil bacterium that triggers tumorigenesis in plants, produces a family of type VI DNase effectors (Tde) that are distinct from previously
Abderrahman Hachani, Alain Filloux, Erh-Min Lai   +2 more
exaly   +4 more sources

Environmental Viscosity Modulates Interbacterial Killing during Habitat Transition [PDF]

mBio, 2020
Symbiotic bacteria use diverse strategies to compete for host colonization sites. However, little is known about the environmental cues that modulate interbacterial competition as they transition between free-living and host-associated lifestyles.
Lauren Speare, Stephanie Smith, Fernanda Salvato, Manuel Kleiner, Alecia N. Septer   +4 more
doaj   +2 more sources

Use of zebrafish to identify host responses specific to type VI secretion system mediated interbacterial antagonism. [PDF]

PLoS Pathogens
Interbacterial competition is known to shape the microbial communities found in the host, however the interplay between this competition and host defense are less clear.
Mollie Virgo, Serge Mostowy, Brian T Ho
doaj   +2 more sources

Streptococcus suis exports WapA polymorphic toxins to compete with tonsil microbiota for an optimal colonization [PDF]

Journal of Oral Microbiology
Background Streptococcus suis is a zoonotic pathogen, and its colonization of the host tonsil is believed to be a vital source causing infection, while its mechanism competing for a stable tonsil niche is unknown. Rearrangement hotspot (Rhs) proteins are
Xinming Pan, Jianan Liu, Ningyuan Zhong, Ruhui Fan, Zhen Zhang, Caiying Li, Huizhen Wu, Zongfu Wu, Qiankun Bai, Jiale Ma   +9 more
doaj   +2 more sources

ABPs: diffusible antibacterial toxins secreted by and active against diverse gram-positive bacteria [PDF]

Infection and Immunity
Competition between organisms is a ubiquitous feature of life on Earth and a major driver of evolutionary innovation. As Earth’s most diverse and abundant organisms, bacteria employ numerous strategies to inhibit the growth of competitors, ranging from ...
Jake Colautti, Daniel Mwangi, Joshua J. Woodward, John C. Whitney   +3 more
doaj   +2 more sources

Ecotin and LamB in Escherichia coli influence the susceptibility to Type VI secretion-mediated interbacterial competition and killing by Vibrio cholerae

Biochimica Et Biophysica Acta - General Subjects, 2021
A prevailing action of the Type VI secretion system (T6SS) in several Gram-negative bacterial species is inter-bacterial competition. In the past several years, many effectors of T6SS were identified in different bacterial species and their involvement in inter-bacterial interactions were described.
Si Lhyam Myint, Kyaw Min Aung, Eric Toh
exaly   +4 more sources

The (p)ppGpp Synthetase RelA Contributes to Virulence, Competition Capability and Antibiotic Resistance of Avian Pathogenic Escherichia coli [PDF]

Microorganisms
Avian pathogenic Escherichia coli (APEC) induces avian colibacillosis and brings huge economic losses to global poultry production. The small alarmone (p)ppGpp mediates the bacterial stringent response, a vital pathway modulating microbial stress ...
Jiangang Hu, Dossêh Jean Apôtre Afayibo, Chang Liu, Mengjie Guo, Beibei Zhang, Weiqi Guo, Xinyu Wang, Lei Deng, Yanqing Bao, Jingjing Qi, Mingxing Tian, Shaohui Wang   +11 more
doaj   +2 more sources

Specific and broad-spectrum antibacterial effectors of type VI secretion system drive competition of Stenotrophomonas rhizophila against bacteria from seed microbiota [PDF]

Microbiology Spectrum
The type VI secretion system (T6SS) is a bacterial weapon that injects deadly effectors (T6Es) directly into a target competitor encountered in a microbial community.
Boris Taillefer, Yassine Dairy, Agathe Brault, Martial Briand, Pierre Charpin, Jean Armengaud, Alain Sarniguet   +6 more
doaj   +2 more sources

The Type VI secretion systems of the insect pathogen Photorhabdus luminescens are involved in interbacterial competition, motility and secondary metabolism

The Microbe
The Type VI Secretion System (T6SS) is used as weapon by a variety of Gram-negative bacteria in polymicrobial niche competition. Its characterization and study gained more interest in recent years. The system functions as a molecular nano-weapon: it is used in inter-kingdom competition by various bacteria to deliver toxic effectors in target cells.
Timo Glatter, Alice Regaiolo, Ralf Heermann   +2 more
exaly   +4 more sources

Lipidation of Class IV CdiA Effector Proteins Promotes Target Cell Recognition during Contact-Dependent Growth Inhibition

mBio, 2021
Contact-dependent growth inhibition (CDI) is a common form of interbacterial competition in which cells use CdiA effectors to deliver toxic proteins into their neighbors.
Tiffany M. Halvorsen, Fernando Garza-Sánchez, Zachary C. Ruhe, Nicholas L. Bartelli, Nicole A. Chan, Josephine Y. Nguyen, David A. Low, Christopher S. Hayes   +7 more
doaj   +1 more source