Publications [#230010] of Zhen-Ming Pei

Papers Published

1. Shang, Y; Yang, P; Pei, Z, Research at channel level on the effect of LaCl3 on Radish (Raphanus satirus L.) vacuolar membrane, Chinese Science Bulletin, vol. 47 no. 2 (January, 2002), pp. 112-115
   (last updated on 2026/01/17)

   Abstract:
   We recorded slow vacuolar (SV-type) channel currents of Radish vacuoles successfully for the first time by using the whole-vacuolar patch-clamp recording mode. SV-type currents would increase and threshold potentials of activation would shift towards more negative values with the increase of concentrations of cytosolic Ca²⁺. When 2.5 mmol/L LaCl3and 4 mmol/L EGTA were added to bath solutions, SV-type currents were suppressed remarkably. Then adding LaCl3 with different concentrations to pipette solutions, we found that LaCl3 with higher concentrations (> 4 × 10^-7 mol/L) had a strong inhibitory effect on SV-type currents, while LaCl3 with lower concentrations (≤4 × 10^-7 mol/L) promoted channel currents. This promoting effect provides an important basis at channel level for researching further the effects of rare earth on physiological activities of plants and the production-increase effects of rare earth fertilizers on crops.