| Comments |
"Here [researchers] use membrane tethers to estimate tension in osmotically
perturbed molluscan neurons. As these neurons swell and
shrink, capacitance changes (~0.7 µF/cm^2) roughly account for
changing cell size (Wan et al., 1995). With shrinkage, membrane
invaginates at the substratum, forming large (~1–10µm) VLDs [vacuole-like dilations]
(Reuzeau et al., 1995) reswelling reverses them (Fig. 2). VLDs
echo the membrane invaginations of regulatory volume decrease
(Czekay et al., 1994) and the reversible vesicles of plant protoplasts
undergoing osmocytosis (Wartenberg et al., 1992) and of
shrinking muscle (Krolenko et al., 1995). VLD formation and
reversal are Ca2+-insensitive (Herring et al., 1998)." |