相关实验视频

Updated: Jun 11, 2025

A Fluorescence-based Method to Study Bacterial Gene Regulation in Infected Tissues
07:10

A Fluorescence-based Method to Study Bacterial Gene Regulation in Infected Tissues

Published on: February 19, 2019

8.8K

上腺素和上腺素调节了Gallibacterium anatis中毒性因子的表达

Pablo A Rea Hernández1, Gerardo A Ramírez-Paz-Y-Puente1, Fernando Montes-García1

  • 1Facultad de Estudios Superiores Iztacala, UNAM, Av. De Los Barrios 1, Los Reyes Iztacala, 54090, Tlalnepantla, Edo de México, Mexico.

Microbial pathogenesis
|October 7, 2024
PubMed
概括

压力激素上腺素 (E) 和上腺素 (NE) 影响Gallibacterium anatis的毒性. 这些类甲基胺会影响细菌生长,粘合体表达和生物膜形成,这表明它们在家禽疾病的发病过程中起作用.

关键词:
粘合剂是粘合剂的组成部分.生物膜是一种生物膜.类甲基荷兰胺是什么类型的这种细菌是Gallibacterium.病毒性因素是病毒性因素.的 qseC 基因基因.

更多相关视频

A Galleria mellonella Oral Administration Model to Study Commensal-Induced Innate Immune Responses06:32

A Galleria mellonella Oral Administration Model to Study Commensal-Induced Innate Immune Responses

Published on: March 21, 2019

8.0K
The Insect Galleria mellonella as a Powerful Infection Model to Investigate Bacterial Pathogenesis13:00

The Insect Galleria mellonella as a Powerful Infection Model to Investigate Bacterial Pathogenesis

Published on: December 11, 2012

31.9K

相关概念视频

Gene Regulation in Microbial Communities: Quorum Sensing01:28

Gene Regulation in Microbial Communities: Quorum Sensing

Quorum sensing is a mechanism of bacterial communication that enables coordinated gene expression in response to changes in population density. This facilitates collective behaviors that enhance survival, resource acquisition, and ecological adaptation. This process relies on small signaling molecules called autoinducers that accumulate as bacterial populations grow. When a critical threshold concentration of autoinducers is reached, bacterial cells collectively modify gene expression,...
4
GPCRs Regulate Adenylyl Cylase Activity01:09

GPCRs Regulate Adenylyl Cylase Activity

Some GPCRs transmit signals through adenylyl cyclase (AC), a transmembrane enzyme. AC helps synthesize second messenger cyclic adenosine monophosphate (cAMP). AC catalyzes cyclization reaction and converts ATP to cAMP by releasing a pyrophosphate. The pyrophosphate is further hydrolyzed to phosphate by the enzyme pyrophosphatase, which drives cAMP synthesis to completion. However, cAMP is rapidly degraded to 5′ AMP by the enzymes phosphodiesterase (PDE), preventing overstimulation of...
5.3K
Bacterial Signaling01:30

Bacterial Signaling

Bacterial signaling can occur within bacteria (intracellular) or between bacteria (intercellular). At times, a group of bacteria behaves like a community. To achieve this, they engage in quorum sensing, the perception of higher cell density that causes changes in gene expression. Quorum sensing involves both extracellular and intracellular signaling. The signaling cascade starts with a molecule called an autoinducer (AI). Individual bacteria produce AIs that move out of the bacterial cell...
31.6K
Global Regulatory Systems01:28

Global Regulatory Systems

Global regulatory systems in bacteria enable rapid and coordinated responses to environmental changes by integrating sensory inputs with gene expression, ensuring efficient adaptation to fluctuating conditions. Key global regulatory mechanisms include regulons, two-component systems, sigma factors, and secondary messengers.Regulons and Global RegulatorsA regulon is a collection of genes and operons controlled by a common global regulator. These regulators enable bacteria to prioritize resource...
5
Prokaryotic Transcriptional Activators and Repressors01:58

Prokaryotic Transcriptional Activators and Repressors

The organization of prokaryotic genes in their genome is notably different from that of eukaryotes. Prokaryotic genes are organized, such that the genes for proteins involved in the same biochemical process or function are located together in groups. This group of genes, along with their regulatory elements, are collectively known as an operon. The functional genes in an operon are transcribed together to give a single strand of mRNA known as polycistronic mRNA.
Transcription of prokaryotic...
20.8K
Regulation of the Digestive System01:25

Regulation of the Digestive System

Digestive activity regulation hinges on three primary components. Activation is prompted by a multitude of mechanical and chemical indicators, primarily detected by receptors within the stomach and intestines' walls. These receptors predominantly respond to factors such as mechanical stretching of the organ walls, changes in pH and osmolarity, and the presence of digesting materials and their by-products.
The effectors in this regulation system are glands and smooth muscles. Activation of...
466