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Influx and efflux of potassium rubidium-86 in UV-C irradiated guard of Vicia-Faba.

Author:
  • L Negash
  • Lars Olof Björn
Publishing year: 1988
Language: English
Pages: 239-244
Publication/Series: Plant Physiology and Biochemistry
Volume: 26
Issue: 3
Document type: Journal article
Publisher: Elsevier

Abstract english

Effects of ultraviolet radiation (UV) (254 nm) on isolated guard cells of Vicia faba (cv. Long pod) have been investigated with regards to fluxes of 86Rb+. UV treatment inhibited influx by about 80%, while it increased efflux by up to 350%. Compartmental analysis showed a highly significant difference (p .ltoreq. 0.005) between the slow leakage components of the UV-treated cells (t1/2 = 5.8 min) and control cells (t1/2 = 72 min). The investigation revealed that the tonoplast (as well as the plasmalemma) is affected by UV.

Keywords

  • Biological Sciences

Other

Published
  • ISSN: 1873-2690
Lars Olof Björn
E-mail: lars_olof [dot] bjorn [at] biol [dot] lu [dot] se

Professor emeritus

Molecular Cell Biology

+46 46 222 72 53

B-A340

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