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Factors Influencing Microbial Growth: Temperature

Factors Influencing Microbial Growth: Temperature

Microorganisms display remarkable adaptations, enabling them to thrive in diverse ecological niches across a wide range of temperatures. Temperature profoundly influences microbial growth by affecting enzymatic activity, membrane fluidity, and other cellular processes.Each microorganism operates within a specific temperature range defined by three cardinal points: minimum, optimum, and maximum. Below the minimum temperature, membranes lose fluidity, halting transport processes. Above the...

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Heat is a widely used method to control microbial growth by targeting and denaturing cellular proteins, thereby killing or inactivating microbes. This method's effectiveness is quantified using parameters such as the thermal death point (TDP), thermal death time (TDT), and decimal reduction time (D value). TDP represents the lowest temperature at which all microorganisms in a liquid suspension are eliminated within 10 minutes, whereas TDT is the time necessary to achieve sterilization at a...

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Hyperthermophilic archaea are a group of extremophiles thriving at temperatures above 80°C, often in hydrothermal vents and volcanic soils where conditions surpass the boiling point of water. At such temperatures, proteins, membranes, and DNA in most organisms degrade, but hyperthermophiles have evolved remarkable adaptations to maintain stability and function.Unique Cellular FeaturesHyperthermophilic membranes are composed of a monolayer of biphytanyl tetraether lipids, which resist...

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The spontaneity of a process depends upon the temperature of the system. Phase transitions, for example, will proceed spontaneously in one direction or the other depending upon the temperature of the substance in question. Likewise, some chemical reactions can also exhibit temperature-dependent spontaneities. To illustrate this concept, the equation relating free energy change to the enthalpy and entropy changes for the process is considered:

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Related Experiment Video

Updated: Aug 25, 2025

Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing

Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing

Published on: October 15, 2019

Experimental temperatures shape host microbiome diversity and composition.

Jingdi Li¹, Kieran A Bates¹, Kim L Hoang¹

¹Department of Biology, University of Oxford, Oxford, UK.

Global Change Biology

|October 17, 2022

Summary

This summary is machine-generated.

Global climate change impacts microbiomes. Both warming and cooling reduced microbial diversity and altered composition, with aquatic species most affected. Understanding these shifts is key to predicting host survival.

Keywords:

global climate change host microbiome meta-analysis microbiome disturbance species persistence temperature thermal tolerance

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Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing

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Author Spotlight: Understanding Microbe Adaptation Using Innovative Techniques for Exploring Thermophilic Evolution

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Simulating Temperature in a Soil Incubation Experiment

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Published on: October 28, 2022

Area of Science:

Ecology
Microbiology
Climate Change Science

Background:

Global climate change is increasing extreme thermal events.
Microbial communities in plants and animals may be crucial for host survival under stress.
Changes in microbiomes due to temperature shifts are critical for predicting host performance.

Conclusions:

Temperature changes significantly impact microbiome structure across diverse species and habitats.
Microbiome responses vary based on host habitat and experimental conditions.
Further research is needed to link microbiome shifts to host fitness and functions for predicting resilience to climate change.