Endothelial tubes assemble from intracellular vacuoles in vivo
Article Abstract:
High-resolution time-lapse two-photon imaging of transgenic zebrafish is used to examine how endothelial tubes assemble in vivo, comparing the results with time-lapse imaging of human endothelial-cell tube formation in three-dimensional collagen matrices in vitro. Results support a strong model in which the formation and intracellular and intercellular fusion of endothelial vacuoles drives vascular lumen formation.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006
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Termination of asymmetric cell division and differentiation of stomata
Article Abstract:
Arabidopsis thaliana basic helix-loop-helix (bHLH) protein MUTE is found to be a key switch for meristemoid fate transition and in the absence of MUTE meristemoids abort after excessive asymmetric divisions and fail to differentiate stomata. The analysis has shown that SPEECHLESS (SPCH), MUTE and FAMA bHLH proteins control stomatal development at initiation, meristemoid differentiation and guard cell morphogenesis.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2007
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The nitrate/proton antiporter AtCLCa mediates nitrate accumulation in plant vacuoles
Article Abstract:
The role of nitrate and the antiporter mechanism of a chloride channel (CLC) protein are investigated in a native membrane system of plant Arabidopsis thaliana. (A. t). It is shown that A.t is localized to an intracellular membrane, which is amenable to electrophysiological studies, and direct evidence for its anion transport ability is provided.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006
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