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Mutations in Microorganisms01:18

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Mutations are heritable changes in an organism’s genome involving alterations in the base sequence of DNA or RNA. These changes can influence cellular processes and phenotypic traits, potentially transforming the unaltered wild type into a mutant form. Such changes, termed forward mutations, are pivotal in shaping the genetic diversity of organisms.RNA viruses exhibit the highest mutation rates due to the absence of robust proofreading mechanisms during genome replication. In contrast,...
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Strain Development in Microalgal Biotechnology-Random Mutagenesis Techniques.

Richard Bleisch1, Leander Freitag1, Yob Ihadjadene1

  • 1Institute of Natural Materials Technology, Technische Universität Dresden, 01069 Dresden, Germany.

Life (Basel, Switzerland)
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Summary

Random mutagenesis enhances microalgal cell factories for sustainable nutrition, pharmaceuticals, and energy. This review details physical and chemical methods to improve microalgal productivity and robustness for economic viability.

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Area of Science:

  • Biotechnology
  • Microalgal cultivation
  • Genetic engineering

Background:

  • Microalgal biomass and metabolites offer renewable sources for nutrition, pharmaceuticals, and energy.
  • Microalgae present ecological and economic advantages due to high productivity and low environmental impact.
  • Optimizing microalgal biotechnological processes requires enhanced cell factory productivity and robustness.

Purpose of the Study:

  • To review random mutagenesis techniques applied to microalgal cell factories.
  • To focus on physical and chemical mutagens used in microalgal mutagenesis.
  • To examine mutagenesis conditions and resulting mutant characteristics.

Main Methods:

  • Overview of random mutagenesis strategies.
  • Analysis of physical mutagens (e.g., UV radiation, gamma rays).
  • Analysis of chemical mutagens (e.g., ethyl methanesulfonate, N-methyl-N'-nitro-N-nitrosoguanidine).

Main Results:

  • Random mutagenesis is a key strategy for improving microalgal traits.
  • Different mutagens and conditions yield varied mutant characteristics.
  • Mutant selection is crucial for identifying desired cell factory improvements.

Conclusions:

  • Random mutagenesis is essential for advancing microalgal biotechnology.
  • Optimized mutagenesis protocols can lead to more productive and robust microalgal strains.
  • Further research into mutagenesis will enhance the economic viability of microalgal bioprocesses.