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Ground-based facilities for simulation of microgravity: organism-specific recommendations for their use, and recommended terminology.
Research in microgravity is indispensable to disclose the impact of gravity on biological processes and organisms. However, research in the near-Earth orbit is severely constrained by the limitedExpand
Redistribution of actin, profilin and phosphatidylinositol-4,5-bisphosphate in growing and maturing root hairs
Abstract. The continuously changing polar cytoplasmic organization during initiation and tip growth of root hairs is reflected by a dynamic redistribution of cytoskeletal elements. The small G-actinExpand
Role of the microtubule cytoskeleton in gravisensing Chara rhizoids.
The arrangement of the microtubule cytoskeleton in tip-growing and gravisensing Chara rhizoids has been documented by immunofluorescence microscopy. Predominantly axially oriented undulating bundlesExpand
Comparison of Cryofixation and Aldehyde Fixation for Plant Actin Immunocytochemistry: Aldehydes do not Destroy F-actin
For walled plant cells, the immunolocalization of actin microfilaments, also known as F-actin, has proved to be much trickier than that of microtubules. These difficulties are commonly attributed toExpand
Spheroid formation of human thyroid cancer cells under simulated microgravity: a possible role of CTGF and CAV1
BackgroundMulticellular tumor spheroids (MCTS) formed scaffold-free under microgravity are of high interest for research and medicine. Their formation mechanism can be studied in space in realExpand
How to Activate a Plant Gravireceptor. Early Mechanisms of Gravity Sensing Studied in Characean Rhizoids during Parabolic Flights1
Early processes underlying plant gravity sensing were investigated in rhizoids of Chara globularis under microgravity conditions provided by parabolic flights of the A300-Zero-G aircraft and ofExpand
Alterations of the cytoskeleton in human cells in space proved by life-cell imaging
Microgravity induces changes in the cytoskeleton. This might have an impact on cells and organs of humans in space. Unfortunately, studies of cytoskeletal changes in microgravity reported so far areExpand
Rhizoids and protonemata of characean algae: model cells for research on polarized growth and plant gravity sensing
Summary.Gravitropically tip-growing rhizoids and protonemata of characean algae are well-established unicellular plant model systems for research on gravitropism. In recent years, considerableExpand
Gravity perception requires statoliths settled on specific plasma membrane areas in characean rhizoids and protonemata
  • M. Braun
  • Biology, Medicine
  • Protoplasma
  • 1 May 2002
Summary. The noninvasive infrared laser micromanipulation technique (optical tweezers, optical trapping) and centrifugation were used to study susception and perception, the early events in theExpand