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PMID:17565971

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Citation

Falcone, A, Nelissen, H, Fleury, D, Van Lijsebettens, M and Bitonti, MB (2007) Cytological investigations of the Arabidopsis thaliana elo1 mutant give new insights into leaf lateral growth and Elongator function. Ann. Bot. 100:261-70

Abstract

Leaf growth is a complex developmental process controlled by genetic and environmental factors and is determined by a proliferation, expansion and maturation phase. Mutational analysis in Arabidopsis thaliana showed that leaf size and shape is dependent on cell division and cell expansion activity. An investigation was made at the cytophysiological and ultrastructural level of the elo1 mutant of Arabidopsis thaliana, which is defective in one of the components of the histone acetyl transferase Elongator complex and displays a distinct 'narrow leaves' phenotype, owing to a reduced cell number and no transition between petiole and lamina. Relative expression levels of three sucrose metabolism/transport-related genes were also investigated. The aim was to determine the physiological basis of leaf morphology in this mutant, by investigating the modulatory role of sucrose.

Links

PubMed PMC2735317 Online version:10.1093/aob/mcm102

Keywords

Arabidopsis/physiology; Arabidopsis/ultrastructure; Arabidopsis Proteins/physiology; Cell Division/physiology; Cell Enlargement; Exocytosis/physiology; Gene Expression Regulation, Plant; Genes, Plant; Germination/physiology; Microscopy, Electron, Transmission; Morphogenesis/physiology; Mutation; Plant Leaves/growth & development; Polymerase Chain Reaction; Protein-Serine-Threonine Kinases/physiology; Receptors, Cell Surface/physiology; Seeds/physiology; Sucrose/metabolism; Thylakoids/ultrastructure; Vacuoles/ultrastructure

Significance

Annotations

Gene product Qualifier GO Term Evidence Code with/from Aspect Extension Notes Status

ARATH:ELP4

involved_in

GO:0008284: positive regulation of cell population proliferation

ECO:0000315: mutant phenotype evidence used in manual assertion

P

Seeded From UniProt

complete

ARATH:ELP4

involved_in

GO:0009737: response to abscisic acid

ECO:0000315: mutant phenotype evidence used in manual assertion

P

Seeded From UniProt

complete

ARATH:ELP4

involved_in

GO:0043609: regulation of carbon utilization

ECO:0000315: mutant phenotype evidence used in manual assertion

P

Seeded From UniProt

complete

ARATH:ELP4

involved_in

GO:0071329: cellular response to sucrose stimulus

ECO:0000315: mutant phenotype evidence used in manual assertion

P

Seeded From UniProt

complete

ARATH:ELP4

involved_in

GO:2000024: regulation of leaf development

ECO:0000315: mutant phenotype evidence used in manual assertion

P

Seeded From UniProt

complete


See also

References

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