Cytoplasmic streaming is crucial for cell homeostasis and expansion but the precise driving forces are largely unknown. In plants, partial loss of cytoplasmic streaming due to chemical and genetic ablation of myosins supports the existence of yet-unknown motors for organelle movement. Here we tested a role of the endoplasmic reticulum (ER) as propelling force for cytoplasmic streaming during cell expansion. Through quantitative live-cell analyses in wild-type Arabidopsis thaliana cells and mutants with compromised ER structure and streaming, we demonstrate that cytoplasmic streaming undergoes profound changes during cell expansion and that it depends on motor forces co-exerted by the ER and the cytoskeleton. © 2014. Published by The Company of Biologists Ltd.

The endoplasmic reticulum exerts control over organelle streaming during cell expansion / Stefano G.; Renna L.; Brandizzi F.. - In: JOURNAL OF CELL SCIENCE. - ISSN 0021-9533. - ELETTRONICO. - 127:(2014), pp. 947-953. [10.1242/jcs.139907]

The endoplasmic reticulum exerts control over organelle streaming during cell expansion

Stefano G.
Writing – Review & Editing
;
Renna L.;
2014

Abstract

Cytoplasmic streaming is crucial for cell homeostasis and expansion but the precise driving forces are largely unknown. In plants, partial loss of cytoplasmic streaming due to chemical and genetic ablation of myosins supports the existence of yet-unknown motors for organelle movement. Here we tested a role of the endoplasmic reticulum (ER) as propelling force for cytoplasmic streaming during cell expansion. Through quantitative live-cell analyses in wild-type Arabidopsis thaliana cells and mutants with compromised ER structure and streaming, we demonstrate that cytoplasmic streaming undergoes profound changes during cell expansion and that it depends on motor forces co-exerted by the ER and the cytoskeleton. © 2014. Published by The Company of Biologists Ltd.
2014
127
947
953
Stefano G.; Renna L.; Brandizzi F.
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1226131
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