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Author Monachello, Dario ♦ Allot, Michèle ♦ Oliva, Sabrina ♦ Krapp, Anne ♦ Daniel-Vedele, Françoise ♦ Barbier-Brygoo, Hélène ♦ Ephritikhine, Geneviève
Source World Health Organization (WHO)-Global Index Medicus
Content type Text
Publisher Wiley
File Format HTM / HTML
Language English
Difficulty Level Medium
Subject Domain (in DDC) Natural sciences & mathematics ♦ Chemistry & allied sciences ♦ Life sciences; biology ♦ Physiology & related subjects ♦ Biochemistry ♦ Genetics and evolution ♦ Natural history of organisms ♦ Technology ♦ Medicine & health ♦ Human anatomy, cytology, histology ♦ Human physiology ♦ Pharmacology and therapeutics
Subject Domain (in MeSH) Cells ♦ Anatomy ♦ Eukaryota ♦ Organisms ♦ Inorganic Chemicals ♦ Amino Acids, Peptides, and Proteins ♦ Nucleic Acids, Nucleotides, and Nucleosides ♦ Chemicals and Drugs ♦ Chemical Phenomena ♦ Metabolism ♦ Cell Physiological Phenomena ♦ Genetic Phenomena ♦ Biological Sciences
Subject Keyword Discipline Botany ♦ Anion Transport Proteins ♦ Metabolism ♦ Arabidopsis Proteins ♦ Arabidopsis ♦ Chloride Channels ♦ Genes, Plant ♦ Ion Transport ♦ Physiology ♦ Nitrates ♦ Nitrites ♦ Genetics ♦ Dna, Bacterial ♦ Intracellular Membranes ♦ Metabolic Networks And Pathways ♦ Mutation ♦ Phenotype ♦ Receptor Cross-talk ♦ Signal Transduction ♦ Vacuoles ♦ Journal Article ♦ Research Support, Non-u.s. Gov't
Abstract * In plants, the knowledge of the molecular identity and functions of anion channels are still very limited, and are almost restricted to the large ChLoride Channel (CLC) family. In Arabidopsis thaliana, some genetic evidence has suggested a role for certain AtCLC protein members in the control of plant nitrate levels. In this context, AtClCa has been demonstrated to be involved in nitrate transport into the vacuole, thereby participating in cell nitrate homeostasis. * In this study, analyses of T-DNA insertion mutants within the AtClCa and AtClCe genes revealed common phenotypic traits: a lower endogenous nitrate content; a higher nitrite content; a reduced nitrate influx into the root; and a decreased expression of several genes encoding nitrate transporters. * This set of nitrate-related phenotypes, displayed by clca and clce mutant plants, showed interconnecting roles of AtClCa and AtClCe in nitrate homeostasis involving two different endocellular membranes. * In addition, it revealed cross-talk between two nitrate transporter families participating in nitrate assimilation pathways. The contribution to nitrate homeostasis at the cellular level of members of these different families is discussed.
Description Country affiliation: France
Author Affiliation: Monachello D ( Institut des Sciences du Végétal, Centre National de la Recherche Scientifique (CNRS-UPR 2355), Gif sur Yvette, France.)
ISSN 0028646X
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Reading ♦ Research ♦ Self Learning
Interactivity Type Expositive
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2009-01-01
Publisher Place Great Britain (UK)
e-ISSN 14698137
Journal New Phytologist
Volume Number 183
Issue Number 1


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Source: WHO-Global Index Medicus