Plasmalemma Voltage Noise in Chara corallina

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Abstract
Voltage noise analysis is applied to plasmalemma ion transport in C. corallina. A component in the noise power spectrum is probably associated with current fluctuations within passive transport channels. Another component may be associated either with fluctuations in the number of open channels or with active transport. The data allow the calculation of time constants that may be attributable to molecular level events in these transport processes.