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Author Spotlight: Polysome Profiling Protocol for Studying Translational Regulation in Arabidopsis Under Heat Stress
Published on: October 11, 2024
Digest: Transgenerational stress memory mechanisms in Arabidopsis thaliana
Gregory Ian Robinson1, John Wesley Robinson2
1Department of Physiology and Pharmacology, Collaborative Specialization in Developmental Biology, Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada.
Abstract:
Arabidopsis thaliana accessions have shown genetic diversity and type of stressor to be important determinants of transgenerational stress memory. Alvarez et al. found that certain accessions showed reversible phenotypic plasticity, supporting a model of transgenerational stress memory based upon epigenetic changes. The main proposed epigenetic regulators include DNA methylation, histone modifications, and RNA silencing via small noncoding RNA.
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01:10Transcription
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
02:45Responses to Heat and Cold Stress