Document Detail


Cell-type-specific disruption and recovery of the cytoskeleton in Arabidopsis thaliana epidermal root cells upon heat shock stress.
MedLine Citation:
PMID:  17458637     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The cytoskeleton in plant cells plays an important role in controlling cell shape and mediating intracellular signalling. However, almost nothing is known about the reactions of cytoskeletal elements to heat stress, which represents one of the major environmental challenges for plants. Here we show that living epidermal root cells of Arabidopsis thaliana could cope with short-term heat shock stress showing disruption and subsequent recovery of microtubules and actin microfilaments in a time-dependent manner. Time-lapse imaging revealed a very dynamic behavior of both cytoskeletal elements including transient depolymerization and disassembly upon heat shock (40-41 degrees C) followed by full recovery at room temperature (20 degrees C) within 1-3 h. Reaction of microtubules, but not actin filaments, to heat shock was dependent on cell type and developmental stage. On the other hand, recovery of actin filaments, but not microtubules, from heat shock stress was dependent on the same parameters. The relevance of this adaptive cytoskeletal behavior to intracellular signalling is discussed.
Authors:
J Müller; D Menzel; J Samaj
Related Documents :
1409647 - Activation of potassium channels: relationship to the heat shock response.
24388847 - Coordination of rho family gtpase activities to orchestrate cytoskeleton responses duri...
6403517 - Structural similarities between corresponding heat-shock proteins from different eucary...
10694437 - Caveolin internalization by heat shock or hyperosmotic shock.
17587607 - Reactive oxygen species, but not mitochondrial membrane potential, is associated with r...
21823017 - Anti-tumor activity of curcumin against androgen-independent prostate cancer cells via ...
Publication Detail:
Type:  Journal Article     Date:  2007-04-24
Journal Detail:
Title:  Protoplasma     Volume:  230     ISSN:  0033-183X     ISO Abbreviation:  Protoplasma     Publication Date:  2007  
Date Detail:
Created Date:  2007-04-26     Completed Date:  2007-10-19     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9806853     Medline TA:  Protoplasma     Country:  Austria    
Other Details:
Languages:  eng     Pagination:  231-42     Citation Subset:  IM    
Affiliation:
Institute of Cellular and Molecular Botany, University of Bonn, Bonn, Federal Republic of Germany. jozef.samaj@uni-bonn.de
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adaptation, Physiological / physiology
Arabidopsis / cytology,  metabolism*
Cytoskeleton / metabolism*,  ultrastructure
Heat-Shock Proteins / metabolism
Heat-Shock Response / physiology*
Microfilaments / metabolism,  ultrastructure
Microtubule-Associated Proteins / metabolism
Plant Epidermis / cytology,  metabolism*
Plant Roots / cytology,  metabolism*
Recovery of Function / physiology
Temperature
Chemical
Reg. No./Substance:
0/Heat-Shock Proteins; 0/Microtubule-Associated Proteins

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Domain-specific mechanosensory transmission of osmotic and enzymatic cell wall disturbances to the a...
Next Document:  Effects of nicardipine-induced hypotension on cerebrovascular carbon dioxide reactivity in patients ...