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Author Emans, Neil ♦ Zimmermann, Sabine ♦ Fischer, Rainer
Source World Health Organization (WHO)-Global Index Medicus
Content type Text
Publisher American Society of Plant Biologists
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 ♦ Natural history of organisms ♦ Technology ♦ Medicine & health ♦ Human anatomy, cytology, histology ♦ Human physiology ♦ Pharmacology and therapeutics ♦ Diseases ♦ Manufacture for specific uses ♦ Precision instruments & other devices
Subject Domain (in MeSH) Cells ♦ Anatomy ♦ Eukaryota ♦ Organisms ♦ Inorganic Chemicals ♦ Organic Chemicals ♦ Heterocyclic Compounds ♦ Polycyclic Compounds ♦ Chemical Actions and Uses ♦ Chemicals and Drugs ♦ Investigative Techniques ♦ Analytical, Diagnostic and Therapeutic Techniques and Equipment ♦ Physical Phenomena ♦ Cell Physiological Phenomena ♦ Biological Sciences
Subject Keyword Discipline Botany ♦ Androstadienes ♦ Pharmacology ♦ Brefeldin A ♦ Plants ♦ Drug Effects ♦ Pyridinium Compounds ♦ Metabolism ♦ Quaternary Ammonium Compounds ♦ Cell Membrane ♦ Cells, Cultured ♦ Endocytosis ♦ Fluorescent Dyes ♦ Fluorometry ♦ Plant Cells ♦ Temperature ♦ Time Factors ♦ Tobacco ♦ Cytology ♦ Vacuoles ♦ Journal Article
Abstract We assessed FM1-43 [N-(3-triethylammoniumpropyl)-4-(4-[dibutylamino]styryl)pyridinium dibromide] as a fluorescent endocytosis marker in intact, walled plant cells. At 4 degrees C, FM1-43 stained the plasma membrane, and after 30 to 120 min of incubation at 26 degrees C, FM1-43 labeled cytoplasmic vesicles and then the vacuole. Fluorimetric quantitation demonstrated dye uptake temperature sensitivity (approximately 65% reduction at 16 degrees C, >90% at 4 degrees C). FM1-43 uptake in suspension cells was stimulated more than twofold by brefeldin A and inhibited approximately 0.4-fold by wortmannin. FM1-43 delivery to the vacuole was largely inhibited by brefeldin A, although overall uptake was stimulated, and brefeldin A treatment caused the accumulation of large prevacuolar endosomal vesicles heavily labeled with FM1-43. Three-dimensional time lapse imaging revealed that FM1-43-labeled vacuoles and vesicles are highly dynamic. Thus, FM1-43 serves as a fluorescent marker for imaging and quantifying membrane endocytosis in intact plant cells.
Description Country affiliation: Germany
Author Affiliation: Emans N ( Institute for Molecular Biotechnology, Biology VII, Rheinisch-Westfälische Technische Hochschule Aachen, Worringerweg 1, D-52074 Aachen, Germany.
ISSN 10404651
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 2002-01-01
Publisher Place United States
e-ISSN 1531298X
Volume Number 14
Issue Number 1

Source: WHO-Global Index Medicus