title: EFFECTS OF GUAIACOL AND HEXYLRESORCINOL IN THE PRESENCE OF BARIUM AND CALCIUM.
abstract: Guaiacol was applied at two spots on the same cell of Nitella. At one spot it was dissolved in 0.01 M NaCl, at the other in 0.01 M CaCl(2) or BaCl(2). The effect was practically the same in all cases, i.e. a similar change of P.D. in a negative direction, involving a more or less complete loss of P.D. (depolarization). When hexylresorcinol was used in place of guaiacol the result was similar. That Ca(++) and Ba(++) do not inhibit the effect of these organic depolarizing substances may be due to a lack of penetration of Ca(++) and Ba(++). The organic substances penetrate more rapidly and their effect is chiefly on the inner protoplasmic surface which is the principal seat of the P.D.
authors.affiliation: Laboratories of The Rockefeller Institute for Medical Research.
authors.forename: W J
authors.initials: WJ
authors.lastname: Osterhout