Sulfhydryl Group Involvement in Plasmalemma Transport of HCO(3) and OH in Chara corallina.


The effect of the sulfhydryl reagents (-SH) p-chloromercuribenzene-sulfonic acid (PCMBS), N-ethylmaleimide (NEM), and inorganic mercury on H(14)CO(3) (-) assimilation in Chara corallina is reported. Commercial grade PCMBS caused severe inhibition of H(14)CO(3) (-) assimilation. Results obtained using purified PCMBS (stock solution passed through a chelating… (More)


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