Light-sensitive membrane potentials in onion guard cells

  title={Light-sensitive membrane potentials in onion guard cells},
  author={Eduardo Zeiger and Wendy Moody and PK Hepler and F. Varela},
INTRACELLULAR electrical recordings in onion guard cells show that they maintain a membrane potential difference (MPD), inside negative. The MPD is light-sensitive; cells subjected to short light and dark cycles depolarise in the dark and hyperpolarise in the light. The swiftness of the electrical changes makes them among the fastest known stomatal… CONTINUE READING