ATP-regulated ion channels in the plasma membrane of a characeae alga, Nitellopsis obtusa

Maki Katsuhara, Tetsuro Mimura, Masashi Tazawa

Research output: Contribution to journalArticle

33 Citations (Scopus)


Using the patch-clamp technique, we recorded single-channel currents across the excised patch of the plasma membrane of Nitellopsis. Both K+ and Na+ can pass this channel, but currents were not carried by Cl-. Upon the addition of ATP or AMP to the cytoplasmic side, the frequency of channel opening decreased. This is the first report on an ATP-regulated channel in plant cells.

Original languageEnglish
Pages (from-to)343-346
Number of pages4
JournalPlant Physiology
Issue number1
Publication statusPublished - May 1990
Externally publishedYes


ASJC Scopus subject areas

  • Plant Science

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