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Related Concept Videos

Physical Methods for Controlling Microbial Growth: Temperature01:23

Physical Methods for Controlling Microbial Growth: Temperature

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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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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.
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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.
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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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Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
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Related Experiment Video

Updated: Oct 10, 2025

Transverse Sectioning of Mature Rice Oryza sativa L. Kernels for Scanning Electron Microscopy Imaging Using Pipette Tips as Immobilization Support
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Chilling tolerance in rice: Past and present.

Junhua Li1, Zeyong Zhang2, Kang Chong3

  • 1College of Life Sciences, Henan Normal University, Xinxiang, 453007, China.

Journal of Plant Physiology
|December 7, 2021
PubMed
Summary

Rice chilling tolerance research has advanced significantly, identifying key genes and pathways. Novel approaches like natural allelic variation analysis are accelerating breeding for improved cold-hardy rice varieties.

Keywords:
ChillingCold signalingCold toleranceNatural variationQuantitative trait loci (QTLs)Rice (Oryza sativa L.)

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Identifying Mutations by High Resolution Melting in a TILLING Population of Rice
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Area of Science:

  • Agricultural Science
  • Plant Biology
  • Genetics

Background:

  • Rice is highly sensitive to chilling stress, impacting crop yield.
  • Extensive research has focused on understanding and enhancing rice cold tolerance.

Purpose of the Study:

  • To review research trends and advances in rice chilling tolerance.
  • To summarize phenotypic, biochemical, and physiological responses to cold stress.

Main Methods:

  • Analysis of published data over the past 20 years.
  • Review of techniques for identifying quantitative trait loci (QTLs) and genes.
  • Examination of cellular pathways involved in cold tolerance.

Main Results:

  • Novel technologies have accelerated cold tolerance studies.
  • Characterization of QTLs, key genes, and molecular modules aids breeding.
  • Natural allelic variation analysis is an emerging, effective approach.

Conclusions:

  • Advances in technology and genetic analysis are crucial for improving rice chilling tolerance.
  • Identifying superior alleles through natural variation directly supports breeding efforts for cold-hardy rice.