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Related Concept Videos

Zygotic Development And Stem Cell Formation01:10

Zygotic Development And Stem Cell Formation

The development of all multicellular organisms starts with the fusion of haploid cells called sperm and egg to form a diploid zygote. A zygote is a totipotent cell that can develop into a complete organism. The zygote undergoes cell division or cleavage to form an 8-cell mass. Until this stage, the cells are spherical, loosely attached, and remain totipotent. Totipotent cells are capable of developing both the embryonic and the extraembryonic tissues. However, as they continue to divide, they...
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Primary and Secondary Growth in Roots and Shoots03:02

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Cellular Differentiation00:57

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How does a complex organism such as a human develop from a single cell? It all starts from a single fertilized egg which gives rise to a vast array of cell types, such as nerve cells, muscle cells, and epithelial cells that characterize the adult? Throughout development and adulthood, cellular differentiation leads cells to assume their final morphology and physiology. Differentiation is the process by which unspecialized cells become specialized to carry out distinct functions.
A zygote is a...

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Stepwise Cell Seeding on Tessellated Scaffolds to Study Sprouting Blood Vessels
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From thin to thick: major transitions during stem development.

Pablo Sanchez1, Lilian Nehlin, Thomas Greb

  • 1Gregor Mendel Institute of Molecular Plant Biology, Austrian Academy of Sciences, Dr Bohr-Gasse 3, 1030 Vienna, Austria.

Trends in Plant Science
|December 23, 2011
PubMed
Summary
This summary is machine-generated.

Plant shoot architecture variability arises from stem growth flexibility. This review explores molecular mechanisms regulating stem development and lateral growth initiation, highlighting key research questions.

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Area of Science:

  • Plant Biology
  • Developmental Biology
  • Genetics

Background:

  • Plant shoot architecture exhibits significant variability, representing extreme adaptive growth.
  • Stem growth flexibility, driven by apical and lateral meristems, underlies this architectural diversity.
  • The molecular regulation of stem development remains largely uncharacterized.

Purpose of the Study:

  • To review current understanding of stem development.
  • To discuss the initiation of lateral stem growth.
  • To identify critical unanswered questions in stem biology.

Main Methods:

  • Literature review synthesizing recent advances.
  • Integration of knowledge from root and leaf development studies.
  • Focus on molecular mechanisms and genetic regulation.

Main Results:

  • Initial stem patterning events are increasingly understood.
  • Prerequisites for lateral stem growth initiation are being elucidated.
  • Novel approaches are revealing regulatory pathways.

Conclusions:

  • Understanding stem development is crucial for plant architecture.
  • Further research is needed to fully unravel stem growth regulation.
  • Exploiting knowledge from other plant organs offers promising avenues.