Knock-out of the plastid ribosomal protein S21 causes impaired photosynthesis and sugar-response during germination and seedling development in Arabidopsis thaliana

• Published in: Plant and cell physiology Vol. 45; no. 6; pp. 781 - 788
• Main Authors: Morita Yamamuro, C. (Hokkaido Univ., Sapporo (Japan)), Tsutsui, T, Tanaka, A, Yamaguchi, J
• Format: Journal Article
• Language: English
• Published: Japan Oxford University Press 01.06.2004; Oxford Publishing Limited (England)
• Subjects: 5-bis-phosphate carboxylase/oxygenase; ABA; abscisic acid; Arabidopsis - genetics; Arabidopsis - growth & development; Arabidopsis - metabolism; ARABIDOPSIS THALIANA; BIOLOGICAL DEVELOPMENT; Cell Differentiation - drug effects; Cell Differentiation - genetics; Chloroplasts - genetics; Chloroplasts - metabolism; Chloroplasts - ultrastructure; Down-Regulation - genetics; Drug Tolerance - physiology; electron transfer rate; ETR; Gene Expression Regulation, Plant - genetics; GERMINATION; Germination - genetics; Glucose - metabolism; Glucose - pharmacology; Keywords: ABA — Chloroplast — GHS1 — Glucose hypersensitivity —30S ribosome — Sugar-response; Microscopy, Electron; Molecular Sequence Data; MUTANTS; Mutation - genetics; PHOTOSYNTHESIS; Photosynthesis - genetics; Plastids - genetics; Plastids - metabolism; Plastids - ultrastructure; Ribosomal Proteins - deficiency; Ribosomal Proteins - genetics; RIBOSOMES; Ribulose-Bisphosphate Carboxylase - genetics; Ribulose-Bisphosphate Carboxylase - metabolism; RuBisCO; SEEDLINGS; Seedlings - genetics; Seedlings - growth & development; Seedlings - metabolism; Sequence Homology, Amino Acid

To clarify the mechanism of sugar-response of higher plants, the ghs1 (glucose hypersensitive) mutant of Arabidopsis was isolated and characterized. The ghs1 mutant had an increased sensitivity to glucose, showing a dramatic inhibition of chlorophyll synthesis and developmental arrest of leaves when...