Related Experiment Video
Updated: Jun 19, 2025
07:08
Detection of Histone Modifications in Plant Leaves
Published on: September 23, 2011
24.9K
How Histone Acetyltransferases Shape Plant Photomorphogenesis and UV Response
Irina Boycheva1, Georgi Bonchev1, Vasilissa Manova1
1Department of Molecular Biology and Genetics, Institute of Plant Physiology and Genetics, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria.
International Journal of Molecular Sciences
|July 27, 2024
Summary
Histone acetyltransferases (HATs) regulate plant development and stress responses by modifying chromatin structure. Understanding HATs is key to improving crop resilience and productivity for sustainable agriculture.
Area of Science:
- Plant Biology
- Epigenetics
- Molecular Biology
Background:
- Plants adapt to environmental changes via complex mechanisms, with light influencing photosynthesis and photomorphogenesis.
- Ultraviolet (UV) radiation causes cellular damage, requiring robust DNA repair pathways.
- Histone acetyltransferases (HATs) are critical regulators of chromatin structure and gene expression, aiding in repair and adaptation.
Purpose of the Study:
- To review the multifaceted roles of HATs in plant photomorphogenesis, chromatin remodeling, and gene regulation.
- To highlight the significance of chromatin modifications in plant responses to light and environmental stressors.
- To underscore the need for further investigation into specific HAT family members and their interactions.
Main Methods:
- Literature review focusing on HATs, light signaling, and chromatin dynamics in plants.
- Analysis of existing research on epigenetic modifications and plant stress responses.
- Exploration of advanced genomic and genome-editing technologies for manipulating HAT activity.
Main Results:
- HATs facilitate chromatin relaxation, promoting transcriptional activation essential for plant development and stress adaptation.
- HATs are integral to plant responses to light signaling and various environmental stressors.
- The interplay between HATs, light signaling, and chromatin dynamics offers insights into plant adaptability.
Conclusions:
- Further research on individual HATs and their interactions with epigenetic factors is crucial.
- Advanced genomic and genome-editing tools can be leveraged to enhance crop resilience and productivity.
- Understanding HAT-mediated mechanisms is vital for improving plant growth and stress tolerance in sustainable agriculture.
Keywords:
DNA repair mechanismsUV-B radiationchromatin remodelinghistone acetyltransferaseslight signaling pathwaysplant photomorphogenesisMore Related Videos
11:33Investigating Interactions Between Histone Modifying Enzymes and Transcription Factors in vivo by Fluorescence Resonance Energy Transfer
Published on: October 14, 2022
1.6K
12:36Chromatin Immunoprecipitation Assay for the Identification of Arabidopsis Protein-DNA Interactions In Vivo
Published on: January 14, 2016
20.4K
Related Concept Videos
02:00Photoreceptors and Plant Responses to Light
20.3K
Light plays a significant role in regulating the growth and development of plants. In addition to providing energy for photosynthesis, light provides other important cues to regulate a range of developmental and physiological responses in plants.
20.3K
01:25Cell Signaling in Plants
5.6K
Plant cells communicate to coordinate their cycle of growth, flowering and fruiting, and activities in roots, shoots, and leaves in response to the changing environmental conditions. Plant signaling is distinct from animal signaling. Plants primarily utilize enzyme-linked receptors, whereas the largest class of cell-surface receptors in animals are G-protein coupled receptors (GPCRs). Unlike animals, receptor tyrosine kinases are rare in plants. Instead, plants have a diverse class of...
5.6K
02:32Histone Modification
13.2K
The histone proteins have a flexible N-terminal tail extending out from the nucleosome. These histone tails are often subjected to post-translational modifications such as acetylation, methylation, phosphorylation, and ubiquitination. Particular combinations of these modifications form “histone codes” that influence the chromatin folding and tissue-specific gene expression.
Acetylation
The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone...
Acetylation
The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone...
13.2K
01:32Chromatin Modification in iPS Cells
1.6K
Chromatin modification alters gene expression; therefore, scientists can add histone-modifying enzymes, histone variants, and chromatin remodeling complexes to somatic cells to aid reprogramming into pluripotent stem (iPS) cells.
Compact chromatin makes reprogramming difficult. Enzymes, such as histone demethylases and acetyltransferases, are often added during reprogramming to loosen the chromatin, making the DNA more accessible to transcription factors. Molecules that inhibit histone...
Compact chromatin makes reprogramming difficult. Enzymes, such as histone demethylases and acetyltransferases, are often added during reprogramming to loosen the chromatin, making the DNA more accessible to transcription factors. Molecules that inhibit histone...
1.6K
02:25Spreading of Chromatin Modifications
8.2K
The histone proteins in the nucleosomes are post-translationally modified (PTM) to increase or decrease access to DNA. The commonly observed PTMs are methylation, acetylation, phosphorylation, and ubiquitination of lysine amino acids in the histone H3 tail region. These histone modifications have specific meaning for the cell. Hence, they are called "histone code". The protein complex involved in histone modification is termed as "reader-writer" complex.
Writers
The writer...
Writers
The writer...
8.2K
02:19Morphogenesis
27.8K
Plant morphogenesis—the development of a plant’s form and structure—involves several overlapping developmental processes, including growth and cell differentiation. Precursor cells differentiate into specific cell types, which are organized into the tissues and organ systems that make up the functional plant.
27.8K