Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Other Stress Responses in Bacteria01:30

Other Stress Responses in Bacteria

187
Bacteria have global regulatory systems that control several types of stress mechanisms. These include Pho regulon and the heat shock response, which are essential systems for environmental adaptation, such as nutrient limitation and proteotoxic stress. The Pho regulon and the heat shock response exemplify bacterial resilience, enabling rapid adaptation to fluctuating environmental conditions.Pho RegulonBacteria require phosphorus for essential cellular processes, including nucleic acid...
187
Stringent Response in E. coli01:23

Stringent Response in E. coli

144
Bacterial growth is closely tied to nutrient availability, with cells proliferating exponentially under favorable conditions and entering a stationary phase when resources become scarce. This transition is mediated by a regulatory mechanism known as the stringent response, which allows bacteria to adapt to nutrient deprivation by modulating gene expression and metabolic activity.During nutrient scarcity, intracellular amino acid levels decline. It results in the accumulation of uncharged tRNAs...
144
Responses to Salt Stress02:02

Responses to Salt Stress

13.8K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
13.8K
Global Regulatory Systems01:28

Global Regulatory Systems

341
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...
341
Stress Response System01:21

Stress Response System

475
The stress response system, also known as the fight-or-flight response, is the body's automatic physiological reaction to perceived threats. Hans Selye introduced the concept of General Adaptation Syndrome (GAS) to describe the predictable pattern of changes that occur in response to stress. GAS consists of three sequential stages: alarm, resistance, and exhaustion. This model helps explain how chronic stress can contribute to health problems.
Alarm stage
In the alarm stage, the body's...
475
Responses to Heat and Cold Stress02:45

Responses to Heat and Cold Stress

14.2K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
14.2K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Elucidation of new sulfamethoxazole catabolic pathways in whole-cell catalyst of bacterium Kocuria rhizophila SA117.

Bioresource technology·2025
Same author

Correction to: Design and development of spectrophotometric enzymatic cyanide assays.

Analytical and bioanalytical chemistry·2025
Same author

Design and development of spectrophotometric enzymatic cyanide assays.

Analytical and bioanalytical chemistry·2024
Same author

Immobilization of aldoxime dehydratases on metal affinity resins and use of the immobilized catalysts for the synthesis of nitriles important in fragrance industry.

Journal of biotechnology·2024
Same author

The Deciphering of Growth-Dependent Strategies for Quorum-Sensing Networks in <i>Pseudomonas aeruginosa</i>.

Microorganisms·2023
Same author

Editorial: Role of sigma factors of RNA polymerase in bacterial physiology, volume II.

Frontiers in microbiology·2023

Related Experiment Video

Updated: Nov 19, 2025

Measurements of Physiological Stress Responses in C. Elegans
10:36

Measurements of Physiological Stress Responses in C. Elegans

Published on: May 21, 2020

14.5K

Stress response in Rhodococcus strains.

Miroslav Pátek1, Michal Grulich1, Jan Nešvera1

  • 1Institute of Microbiology of the CAS, v. v. i., Prague, Czech Republic.

Biotechnology Advances
|January 30, 2021
PubMed
Summary

This review explores how Rhodococcus bacteria respond to various stress conditions. These bacteria are used in biotechnology due to their ability to survive in harsh environments. The study categorizes stress into environmental, chemical, and nutritional types. It also considers stress from biotechnological applications. The review highlights the role of cell envelope adaptations and sigma factors in stress regulation. It emphasizes the need for further research to understand how stress affects biotechnological processes. The findings aim to guide future studies and improve application efficiency.

Keywords:
BiodegradationBiofilmCell aggregationEnvironmentRhodococcusSigma factorsStarvationStressToxic compoundsRhodococcus physiologystress adaptationbiodegradationbioremediation

Frequently Asked Questions

More Related Videos

Studying Oxidative Stress Caused by the Mitis Group Streptococci in Caenorhabditis elegans
09:36

Studying Oxidative Stress Caused by the Mitis Group Streptococci in Caenorhabditis elegans

Published on: March 23, 2019

7.5K
Monitoring Protein-RNA Interaction Dynamics In Vivo at High Temporal Resolution Using &#967;CRAC
09:15

Monitoring Protein-RNA Interaction Dynamics In Vivo at High Temporal Resolution Using χCRAC

Published on: May 9, 2020

5.4K

Related Experiment Videos

Last Updated: Nov 19, 2025

Measurements of Physiological Stress Responses in C. Elegans
10:36

Measurements of Physiological Stress Responses in C. Elegans

Published on: May 21, 2020

14.5K
Studying Oxidative Stress Caused by the Mitis Group Streptococci in Caenorhabditis elegans
09:36

Studying Oxidative Stress Caused by the Mitis Group Streptococci in Caenorhabditis elegans

Published on: March 23, 2019

7.5K
Monitoring Protein-RNA Interaction Dynamics In Vivo at High Temporal Resolution Using &#967;CRAC
09:15

Monitoring Protein-RNA Interaction Dynamics In Vivo at High Temporal Resolution Using χCRAC

Published on: May 9, 2020

5.4K

Area of Science:

  • Microbial stress physiology
  • Environmental microbiology
  • Industrial biotechnology

Background:

Rhodococcus species are known for their ability to thrive in harsh environments. Their survival is linked to unique cell wall structures and diverse enzymatic systems. These bacteria are used in biodegradation and bioremediation due to their physiological traits. However, biotechnological applications often impose stress on these organisms. Prior research has focused on enzyme activity and process optimization. Fewer studies have examined how stress affects Rhodococcus physiology. This gap motivated the need for a comprehensive review of stress responses. The review aims to clarify how different stress types interact. It highlights the need for deeper understanding of stress in biotechnological contexts.

Purpose Of The Study:

This review focuses on stress responses in Rhodococcus strains. It aims to describe individual and combined effects of various stressors. The study addresses environmental, chemical, and nutritional stress types. It also considers stress from biotechnological applications. The goal is to connect stress responses to practical applications. The review does not aim to be a complete literature survey. It emphasizes selected stress responses and their relevance. The findings may guide future research in this area.

Main Methods:

The review approach involved synthesizing literature on stress responses in Rhodococcus. It categorized stress types into environmental, chemical, and nutritional. The study examined the role of cell envelope adaptations and multicellular structures. It also analyzed the impact of host-pathogen interactions. The review included the function of sigma factors in stress regulation. Data were gathered from published studies and experimental findings. The authors evaluated how stress affects biotechnological processes. The synthesis focused on gaps and potential research directions.

Main Results:

Environmental stressors like desiccation and temperature variations affect Rhodococcus physiology. The presence of metals and antibiotics induces specific stress responses. Starvation and nutrient limitation alter cellular behavior. Biotechnological applications introduce additional stress conditions. Cell envelope modifications help in stress adaptation. Multicellular structures may enhance survival under stress. Sigma factors play a key role in global stress regulation. The review highlights the interplay between different stress types.

Conclusions:

The review summarizes key findings on stress responses in Rhodococcus. It shows how different stress types interact and affect cell physiology. The study emphasizes the role of sigma factors in stress regulation. It also highlights the importance of cell envelope adaptations. The findings suggest that stress responses are context-dependent. The review identifies gaps in current knowledge. These gaps may motivate further research in this area. The synthesis provides a foundation for future studies.

The main stress types include environmental, chemical, and nutritional stress. These include desiccation, heat, cold, and the presence of metals or antibiotics.

Sigma factors regulate RNA polymerase activity, influencing gene expression during stress. They help coordinate global stress responses in the bacteria.

The cell envelope provides structural integrity and protects against environmental stress. Modifications to it help Rhodococcus survive harsh conditions.

Multicellular structures may enhance survival by providing physical protection and facilitating resource sharing under stress conditions.

Starvation alters cellular metabolism and energy use. It may trigger stress responses and affect biotechnological performance.

Stress responses can affect the efficiency of biodegradation and bioremediation. Understanding these responses may improve process optimization.