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Interphase00:54

Interphase

The cell cycle occurs over approximately 24 hours (in a typical human cell) and in two distinct stages: interphase, which includes three phases of the cell cycle (G1, S, and G2), and mitosis (M). During interphase, which takes up about 95 percent of the duration of the eukaryotic cell cycle, cells grow and replicate their DNA in preparation for mitosis.
Interphase00:56

Interphase

The cell cycle occurs over approximately 24 hours (in a typical human cell) and in two distinct stages: interphase, which includes three phases of the cell cycle (G1, S, and G2), and mitosis (M). During interphase, which takes up about 95 percent of the duration of the eukaryotic cell cycle, cells grow and replicate their DNA in preparation for mitosis.
Phases of Interphase
Following each period of mitosis and cytokinesis, eukaryotic cells enter interphase, during which they grow and replicate...
Interphase00:56

Interphase

The cell cycle occurs over approximately 24 hours (in a typical human cell) and in two distinct stages: interphase, which includes three phases of the cell cycle (G1, S, and G2), and mitosis (M). During interphase, which takes up about 95 percent of the duration of the eukaryotic cell cycle, cells grow and replicate their DNA in preparation for mitosis.
Phases of Interphase
Following each period of mitosis and cytokinesis, eukaryotic cells enter interphase, during which they grow and replicate...
Interphase00:54

Interphase

The cell cycle occurs over approximately 24 hours (in a typical human cell) and in two distinct stages: interphase, which includes three phases of the cell cycle (G1, S, and G2), and mitosis (M). During interphase, which takes up about 95 percent of the duration of the eukaryotic cell cycle, cells grow and replicate their DNA in preparation for mitosis.
The Phragmoplast01:59

The Phragmoplast

Cell division is essential for organismal growth and development. In animal cells, the central spindle and its associated proteins form the midbody, a structure that has an essential role in cytokinesis. In plants, the central spindle, along with the microtubules, actin, and other cell components, matures into the phragmoplast, which is necessary for cytokinesis. Unlike the stationary midbody, the phragmoplast expands centrifugally, eventually leading to the formation of the new cell wall.
The...
The Phragmoplast01:59

The Phragmoplast

Cell division is essential for organismal growth and development. In animal cells, the central spindle and its associated proteins form the midbody, a structure that has an essential role in cytokinesis. In plants, the central spindle, along with the microtubules, actin, and other cell components, matures into the phragmoplast, which is necessary for cytokinesis. Unlike the stationary midbody, the phragmoplast expands centrifugally, eventually leading to the formation of the new cell wall.
The...

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Related Experiment Video

Updated: Jul 2, 2026

Chromatin Immunoprecipitation Assay for the Identification of Arabidopsis Protein-DNA Interactions In Vivo
12:36

Chromatin Immunoprecipitation Assay for the Identification of Arabidopsis Protein-DNA Interactions In Vivo

Published on: January 14, 2016

Chromatin dynamics during the plant cell cycle.

María de la Paz Sanchez1, Elena Caro, Bénédicte Desvoyes

  • 1Centro de Biologia Molecular "Severo Ochoa", Consejo Superior de Investigaciones Cientificas, Universidad Autonoma de Madrid, Nicolas Cabrera 1, Cantoblanco, Madrid, Spain.

Seminars in Cell & Developmental Biology
|August 19, 2008
PubMed
Summary

Cell cycle progression relies on transcriptional control and chromatin duplication. Understanding chromatin dynamics is crucial for plant growth, cell fate, and response to environmental signals.

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An Efficient Method for Quantitative, Single-cell Analysis of Chromatin Modification and Nuclear Architecture in Whole-mount Ovules in Arabidopsis
09:33

An Efficient Method for Quantitative, Single-cell Analysis of Chromatin Modification and Nuclear Architecture in Whole-mount Ovules in Arabidopsis

Published on: June 19, 2014

Related Experiment Videos

Last Updated: Jul 2, 2026

Chromatin Immunoprecipitation Assay for the Identification of Arabidopsis Protein-DNA Interactions In Vivo
12:36

Chromatin Immunoprecipitation Assay for the Identification of Arabidopsis Protein-DNA Interactions In Vivo

Published on: January 14, 2016

An Efficient Method for Quantitative, Single-cell Analysis of Chromatin Modification and Nuclear Architecture in Whole-mount Ovules in Arabidopsis
09:33

An Efficient Method for Quantitative, Single-cell Analysis of Chromatin Modification and Nuclear Architecture in Whole-mount Ovules in Arabidopsis

Published on: June 19, 2014

Area of Science:

  • Molecular Biology
  • Plant Science
  • Epigenetics

Background:

  • Cell cycle progression is regulated by transcriptional control and requires faithful duplication of DNA and chromatin.
  • Nucleosome dynamics and local chromatin organization changes, including covalent modifications, are critical for cell proliferation genes.
  • Epigenetic marks are maintained or altered during chromatin duplication (S-phase) and chromosome segregation (mitosis), influencing cell fate.

Purpose of the Study:

  • To investigate the role of chromatin dynamics in cell cycle regulation.
  • To understand how epigenetic modifications are managed during DNA replication and cell division.
  • To explore the impact of chromatin duplication and epigenetic inheritance on plant development and signaling.

Main Methods:

  • Analysis of transcriptional control mechanisms during the cell cycle.
  • Studies on nucleosome dynamics and chromatin organization during S-phase.
  • Investigation of covalent DNA and histone modifications in proliferating cells.
  • Examination of epigenetic mark maintenance during mitosis and cell fate determination.

Main Results:

  • Transcriptional control is a major determinant of cell cycle progression.
  • Faithful duplication of chromatin, including nucleosome dynamics and modifications, is essential during S-phase.
  • Cell cycle stages critically impact epigenetic mark inheritance, influencing cell fate decisions.
  • Chromatin dynamics are tightly coupled with plant growth, differentiation, and response to external signals.

Conclusions:

  • Chromatin duplication and epigenetic regulation are fundamental to cell cycle progression and cell fate.
  • Understanding these processes is key to comprehending plant development and environmental responses.
  • Further research into chromatin dynamics offers insights into plant growth and adaptation.