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

Publiceringsår: 1988
Språk: Engelska
Sidor: 239-244
Publikation/Tidskrift/Serie: Plant Physiology and Biochemistry (Paris)
Volym: 26
Nummer: 3
Dokumenttyp: Artikel
Förlag: Gauthier-Villars


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.



  • Biology and Life Sciences


  • ISSN: 0981-9428

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