Influx and efflux of potassium rubidium-86 in UV-C irradiated guard of Vicia-Faba.
Publikation/Tidskrift/Serie: Plant Physiology and Biochemistry (Paris)
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.
- Biological Sciences
- ISSN: 0981-9428