Control of Stomatal Distribution on the Arabidopsis Leaf Surface

Stomata regulate gas exchange and are distributed across the leaf epidermis with characteristic spacing. Arabidopsis stomata are produced by asymmetric cell divisions. Mutations in the gene TOO MANY MOUTHS (TMM) disrupt patterning by randomizing the plane of formative asymmetric divisions and by per...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 2002-05, Vol.296 (5573), p.1697-1700
Main Authors: Nadeau, Jeanette A., Sack, Fred D.
Format: Article
Language:English
Subjects:
Amino Acid Motifs
Amino Acid Sequence
Analysis
Anatomy
Arabidopsis
Arabidopsis - cytology
Arabidopsis - genetics
Arabidopsis - growth & development
Arabidopsis - physiology
Arabidopsis Proteins - chemistry
Arabidopsis Proteins - genetics
Arabidopsis Proteins - physiology
Artificial satellites
Biological and medical sciences
Botany
Cell Differentiation
Cell Division
Cell physiology
Cells
Cloning, Molecular
Coding
Epidermal cells
Flowers & plants
Fluorescence
Fundamental and applied biological sciences. Psychology
Gene Expression Profiling
Genes
Genes, Plant
Individualized Instruction
Leaves
Literary Devices
Meristem - cytology
Meristem - metabolism
Molecular Sequence Data
Molecular Weight
Mother cells
Multipotent stem cells
Mutation
Plant anatomy
Plant cells
Plant Epidermis - cytology
Plant Epidermis - physiology
Plant Leaves - cytology
Plant Leaves - physiology
Plant physiology and development
Plant roots
Plants
Plants, Genetically Modified
Protein Structure, Tertiary
Proteins
Recombinant Fusion Proteins - metabolism
Repetitive Sequences, Amino Acid
Signal Transduction
Space life sciences
Stem cells
Stem Cells - cytology
Stem Cells - metabolism
Stomata
TOO MANY MOUTHS (TMM) gene
Transcription, Genetic
Transcripts (Written Records)
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Description
Summary:Stomata regulate gas exchange and are distributed across the leaf epidermis with characteristic spacing. Arabidopsis stomata are produced by asymmetric cell divisions. Mutations in the gene TOO MANY MOUTHS (TMM) disrupt patterning by randomizing the plane of formative asymmetric divisions and by permitting ectopic divisions. TMM encodes a leucine-rich repeat-containing receptor-like protein expressed in proliferative postprotodermal cells. TMM appears to function in a position-dependent signaling pathway that controls the plane of patterning divisions as well as the balance between stem cell renewal and differentiation in stomatal and epidermal development.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.1069596