Short K A, Blakemore R P
J Bacteriol. 1986 Aug;167(2):729-31. doi: 10.1128/jb.167.2.729-731.1986.
Washed cell suspensions of Aquaspirillum magnetotacticum MS-1, A. itersonii E12639, Bacillus subtilis 6633, and Escherichia coli CSH27 translocated protons in response to the added oxidant O2 or NO3-, with triphenylmethylphosphonium bromide as the permeant ion. Iron respiration-driven proton translocation was observed in A. magnetotacticum MS-1, B. subtilis, and E. coli but not in a nonmagnetic strain of A. magnetotacticum (strain NM-1A) or with A. itersonii. Proton translocation to Fe3+ was totally inhibited by 500 microM NaN3 or 0.5 microM carbonyl cyanide m-chlorophenylhydrazone.
趋磁水生螺菌MS-1、伊氏水生螺菌E12639、枯草芽孢杆菌6633和大肠杆菌CSH27的洗涤细胞悬液,以溴化三苯基甲基鏻作为渗透离子,在添加氧化剂O₂或NO₃⁻时会转运质子。在趋磁水生螺菌MS-1、枯草芽孢杆菌和大肠杆菌中观察到铁呼吸驱动的质子转运,但在趋磁水生螺菌的非磁性菌株(菌株NM-1A)或伊氏水生螺菌中未观察到。500微摩尔NaN₃或0.5微摩尔羰基氰化物间氯苯腙可完全抑制质子向Fe³⁺的转运。