Results 81 to 90 of about 27,042,650 (190)

Lon Protease Is Involved in RhpRS-Mediated Regulation of Type III Secretion in Pseudomonas syringae

Molecular Plant-Microbe Interactions, 2016
Pseudomonas syringae depends on the type III secretion system (T3SS) to directly translocate effectors into host cells. Previously, we reported a nonpathogenic rhpS mutant, suggesting that the two-component transduction system rhpRS is an important ...
Tianhong Zhou, Chunyan Yin, Yingchao Zhang, Heng Shi, Jingru Wang, Linbo Sun, Xiaolong Shao, Ruxia Gao, Wei Wang, Xin Deng   +9 more
doaj   +1 more source

Spermidine Is an Intercellular Signal Modulating T3SS Expression in Pseudomonas aeruginosa

Microbiology Spectrum, 2022
Pseudomonas aeruginosa is a vital opportunistic human bacterial pathogen that causes acute and chronic infections. In this study, we set to determine whether the endogenous spermidine biosynthesis plays a role in regulation of type III secretion system ...
Qiqi Lin, Huishan Wang, Jiahui Huang, Zhiqing Liu, Qunyi Chen, Guohui Yu, Zeling Xu, Ping Cheng, Zhibin Liang, Lian-Hui Zhang   +9 more
doaj   +1 more source

Pseudomonas avellanae: From Specific Pathogens to a Species Complex

Molecular Plant Pathology, Volume 27, Issue 10, October 2026.
The Pseudomonas avellanae species complex includes pathogens formerly classified within Pseudomonas syringae, namely the pathovars avellanae, actinidiae, theae, and morsprunorum race 2. ABSTRACT Taxonomy Bacteria; Proteobacteria, gamma subdivision; Order Pseudomonadales; Family Pseudomonadaceae; Genus Pseudomonas; Pseudomonas avellanae species complex,
Marco Scortichini, Tatjana Popović Milovanović, Renata Iličić   +2 more
wiley   +1 more source

What's the point of the type III secretion system needle?

, 2008
Recent work by several groups has significantly expanded our knowledge of the structure, regulation of assembly, and function of components of the extracellular portion of the type III secretion system (T3SS) of Gram-negative bacteria.
A. J. Blocker, Johnson, S, A. K. J. Veenendaal, S. M. Lea, P. Roversi, S. Johnson, J. E. Deane, Lea, SM, Hodgkinson, JL, Veenendaal, AKJ, Blocker, AJ, J. L. Hodgkinson, Deane, JE, Roversi, P, Veenendaal A. K. J., Lea S. M., Johnson S., Blocker A. J., Hodgkinson J. L., Deane J. E., Roversi P.   +20 more
core   +1 more source

Type III secretion system expression in oxygen-limited Pseudomonas aeruginosa cultures is stimulated by isocitrate lyase activity [PDF]

Open Biology, 2013
Pseudomonas aeruginosa is an opportunistic human pathogen and a common cause of chronic infections in individuals with cystic fibrosis (CF). Oxygen limitation was recently reported to regulate the expression of a major virulence determinant in P ...
Jade C. S. Chung, Olena Rzhepishevska, Madeleine Ramstedt, Martin Welch   +3 more
doaj   +1 more source

Regulation of the Pseudomonas syringae Type III Secretion System by Host Environment Signals

Microorganisms, 2021
Pseudomonas syringae are Gram-negative, plant pathogenic bacteria that use a type III secretion system (T3SS) to disarm host immune responses and promote bacterial growth within plant tissues. Despite the critical role for type III secretion in promoting
Megan R. O’Malley, Jeffrey C. Anderson
doaj   +1 more source

Insights Into the Role of Lysine Acetylation of Non‐Histone Proteins in Plant Immunity

Plant, Cell &Environment, Volume 49, Issue 10, Page 7604-7618, October 2026.
ABSTRACT Plant immunity is regulated by numerous transcriptional and posttranslational mechanisms. Among these, lysine acetylation, which is controlled by lysine acetyltransferases (KATs) and lysine deacetylases (KDACs), has been extensively studied, particularly in the context of epigenetic regulation through histone acetylation.
Jérémy Villette, Chloé Ilbert, Sébastien Aimé, Hoai‐Nam Truong, Marielle Adrian, Stéphane Bourque   +5 more
wiley   +1 more source

Differential regulation of Shigella Spa47 ATPase activity by a native C-terminal product of Spa33

Frontiers in Cellular and Infection Microbiology, 2023
Shigella is a Gram-negative bacterial pathogen that relies on a single type three secretion system (T3SS) as its primary virulence factor. The T3SS includes a highly conserved needle-like apparatus that directly injects bacterial effector proteins into ...
Heather B. Case, Saul Gonzalez, Marie E. Gustafson, Nicholas E. Dickenson   +3 more
doaj   +1 more source

A Ralstonia solanacearum effector RipAD perturbs aquaporin NbPIP oligomeric status to suppress plant immunity

The Plant Journal, Volume 128, Issue 1, October 2026.
SUMMARY Bacterial wilt caused by Ralstonia solanacearum is a devastating disease that affects a wide range of crops, including tobacco. The pathogen promotes infection by secreting type III effector (T3E) proteins into host plants to facilitate pathogenicity; however, the molecular mechanisms for many of these effectors remain elusive.
Bo Nian, Sai Yuan, Yijie Liu, Ying Zhang, Pengyue Li, Yang Lin, Jiatao Xie, Jiasen Cheng, Yanping Fu, Xiao Yu, Daohong Jiang, Bo Li   +11 more
wiley   +1 more source

Positive regulation of Type III secretion effectors and virulence by RyhB paralogs in Salmonella enterica serovar Enteritidis

Veterinary Research, 2021
Small non-coding RNA RyhB is a key regulator of iron homeostasis in bacteria by sensing iron availability in the environment. Although RyhB is known to influence bacterial virulence by interacting with iron metabolism related regulators, its interaction ...
Binjie Chen, Xianchen Meng, Jie Ni, Mengping He, Yanfei Chen, Pengpeng Xia, Heng Wang, Siguo Liu, Guoqiang Zhu, Xia Meng   +9 more
doaj   +1 more source