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Related Concept Videos

Plasmodesmata02:32

Plasmodesmata

The organs in a multicellular organism’s body are made up of tissues formed by cells. To work together cohesively, cells must communicate. One way that cells communicate is through direct contact with other cells. The points of contact that connect adjacent cells are called intercellular junctions.
The Apoplast and Symplast01:46

The Apoplast and Symplast

Plant growth depends on its ability to take up water and dissolved minerals from the soil. The root system of every plant is equipped with the necessary tissues to facilitate the entry of water and solutes. The plant tissues involved in the transport of water and minerals have two major compartments - the apoplast and the symplast. The apoplast includes everything outside the plasma membrane of living cells and consists of cell walls, extracellular spaces, xylem, phloem, and tracheids. The...
Nuclear Protein Sorting01:34

Nuclear Protein Sorting

Nuclear protein sorting is the selective trafficking of histones, polymerases, gene regulatory proteins into the nucleus and exporting RNAs and ribosomes to the cytosol. It is a tightly controlled process that regulates gene expression within a cell.
Proteins targeted to the nucleus carry nuclear localization signals or NLS recognized by import receptors in the cytosol. Similarly, proteins with nuclear export signals are recognized by export receptors. Import and export receptors are...
Nuclear Export01:42

Nuclear Export

The nucleus restricts several proteins within and allows others to pass. The restricted proteins possess a nuclear retention sequence or NRS, anchoring them to the nuclear lamins and preventing their transport to the cytosol. The non-restricted proteins, after their synthesis, are transported to their site of action, such as the cytosol or other organelles, with the help of nuclear export signals or NES.
NES are of three types- the canonical 10-residue long leucine-rich signal and other...
Regulation of Nuclear Protein Sorting01:45

Regulation of Nuclear Protein Sorting

Nuclear protein sorting regulates nucleus composition and gene expression, crucial for determining the fate of a eukaryotic cell. Hence, the entry and exit of molecules across the nuclear envelope is a tightly controlled process. Nuclear protein sorting can be inhibited by one of the following ways: 1) masking cargo signal sequences, 2) modifying the nuclear receptor's affinity for cargo, 3) controlling the nuclear pore size, 4) retaining the cargo during its transit to the cytosol or the...
Plasmodesmata01:20

Plasmodesmata

In a multicellular organism, cells must communicate to work together in a coordinated manner. One way that cells communicate is through direct contact with other cells. The points of contact that connect adjacent cells are called intercellular junctions.
Intercellular junctions are a feature of fungal, plant, and animal cells. However, different types of junctions are found in different kinds of cells. Intercellular junctions found in animal cells include tight junctions, gap junctions, and...

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Identification of Plasmodesmal Localization Sequences in Proteins In Planta
08:07

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Published on: August 15, 2017

The nuclear pore and plant development.

Iris Meier1, Jelena Brkljacic

  • 1Department of Plant Cellular and Molecular Biology, Plant Biotechnology Center, Ohio State University, Columbus, OH 43210, USA. meier.56@osu.edu

Current Opinion in Plant Biology
|October 22, 2008
PubMed
Summary
This summary is machine-generated.

Plant nuclear pores, crucial for nucleocytoplasmic transport, are increasingly linked to plant development and signaling. Recent findings reveal their dynamic nature and roles in cell division, expanding our understanding beyond yeast and mammals.

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Area of Science:

  • Plant Cell Biology
  • Molecular Biology
  • Developmental Biology

Background:

  • Nuclear pores facilitate essential nucleocytoplasmic transport of macromolecules.
  • While extensively studied in yeast and mammals, plant nuclear pore research lags.
  • Emerging evidence suggests plant nuclear pores are involved in critical cellular processes.

Purpose of the Study:

  • To review recent advancements in understanding the plant nuclear pore.
  • To correlate molecular functions of nuclear pore components with plant developmental pathways.
  • To highlight novel roles of nuclear pore components in plant cytokinesis.

Main Methods:

  • Literature review of recent findings on plant nuclear pore structure and function.
  • Analysis of identified nuclear pore and nucleocytoplasmic trafficking components.
  • Correlation of molecular functions with observed developmental and signaling processes.

Main Results:

  • Numerous nuclear pore and nucleocytoplasmic trafficking factors are essential for plant development and signaling.
  • Plant nuclear pore composition exhibits developmental regulation.
  • Nuclear pore components play novel roles in plant cytokinesis.

Conclusions:

  • The plant nuclear pore is a dynamic structure with significant roles in development and signaling.
  • Further research is needed to fully elucidate the comprehensive function of plant nuclear pores.
  • Nuclear pore components represent a novel area for understanding plant cell division and development.