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Plants (Basel). 2020 Mar 30;9(4). doi: 10.3390/plants9040421.

Stay in Touch-The Cortical ER of Moss Protonemata in Osmotic Stress Situations.

Plants (Basel, Switzerland)

Dominik Harant, Ingeborg Lang

Affiliations

  1. Core Facility Cell Imaging & Ultrastructure Research, Faculty of Life Sciences, The University of Vienna, Althanstrasse 14, A-1090 Vienna, Austria.
  2. Department of Functional and Evolutionary Ecology, Faculty of Life Sciences, The University of Vienna, Althanstrasse 14, A-1090 Vienna, Austria.

PMID: 32235617 PMCID: PMC7238208 DOI: 10.3390/plants9040421

Abstract

Plasmolysis is usually introduced to cell biology students as a tool to illustrate the plasma membrane: hypertonic solutions cause the living protoplast to shrink by osmotic water loss; hence, it detaches from the surrounding cell wall. What happens, however, with the subcellular structures in the cell cortex during this process of turgor loss? Here, we investigated the cortical endoplasmic reticulum (ER) in moss protonema cells of

Keywords: Physcomitrella patens; actin; cortical ER; latrunculin B; moss; osmotic stress; plasmolysis

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