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Updated: May 11, 2026

Cell Specific Analysis of Arabidopsis Leaves Using Fluorescence Activated Cell Sorting
Published on: October 4, 2012
BASL controls asymmetric cell division in Arabidopsis
Juan Dong1, Cora A MacAlister, Dominique C Bergmann
1Department of Biology, Stanford University, Stanford, CA 94305-5020, USA.
Researchers discovered BASL, a novel protein crucial for asymmetric cell division in plants. This finding reveals a plant-specific mechanism for generating cellular diversity during development.
Area of Science:
- Plant biology
- Developmental biology
- Cell biology
Background:
- Multicellular development relies on generating cellular differences, often through asymmetric cell division.
- Plants face unique challenges in asymmetric cell division due to cell walls and lack of known polarity regulators.
Purpose of the Study:
- To identify novel regulators of asymmetric cell division in plants.
- To understand the molecular mechanisms underlying plant-specific asymmetric cell division.
Main Methods:
- Investigated asymmetric cell divisions in Arabidopsis stomatal-lineage cells.
- Utilized molecular and cellular biology techniques to track protein localization and function.
Main Results:
- Identified BASL as a novel regulator of asymmetric cell division in Arabidopsis.
- BASL accumulates in a polarized crescent before division and shows differential localization after division.
- Peripheral localization of BASL is essential for its function in generating cellular asymmetry.
Conclusions:
- BASL represents a plant-specific molecular solution for achieving asymmetric cell division.
- This discovery sheds light on the unique strategies plants employ to generate cellular diversity and pattern during development.
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