When statocytes of cress root-caps were incubated in an extraction medium containing phalloidin, bundles of microfilaments (6.6 ± 2.4 nm in diameter) were found in the cortical cytoplasm. The ...
DESPITE some impressive demonstrations of root-pressure 1–3, ‘pumping’ or positive pressure is generally thought to be of little importance for the ascent of sap in trees. This is probably true for ...
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