[玫瑰色嗜硫菌细胞中的呼吸作用]

[Respiration in Thiocapsa roseopersicina cells].

作者信息

Petushkova I U, Ivanovskiĭ R N

出版信息

Mikrobiologiia. 1976 Jan-Feb;45(1):9-14.

Abstract

Oxygen is taken up by the cells of purple sulphur bacterium Thiocapsa roseopersicina BBS grown in the light under anaerobic conditions and in the darkness under aerobic conditions. Respiration is stimulated by sulphide and thiosulphate but not by organic substrates which increase the yield of the cultures. Azide and cyanide inhibit oxygen uptake by the cells in the presence of sulphide and thiosulphate, and also utilization of these compounds. Amytal, atebrin, and rotenone inhibit oxygen uptake by the cells in the presence of sulphide but have no effect on their respiration in the presence of thiosulphate. Light produces reversible inhibiting action on respiration of the cells. Therefore, Thiocapsa roseopersicina can grow in the darkness by oxidizing sulphur compounds with the participation of oxygen.

摘要

在厌氧条件下光照培养以及在好氧条件下黑暗培养时，紫色硫细菌玫瑰色嗜硫菌BBS的细胞会摄取氧气。呼吸作用受到硫化物和硫代硫酸盐的刺激，但不受增加培养物产率的有机底物的刺激。在存在硫化物和硫代硫酸盐的情况下，叠氮化物和氰化物会抑制细胞对氧气的摄取，以及这些化合物的利用。在存在硫化物的情况下，阿米妥、阿的平以及鱼藤酮会抑制细胞对氧气的摄取，但在存在硫代硫酸盐的情况下对细胞呼吸没有影响。光照对细胞呼吸产生可逆的抑制作用。因此，玫瑰色嗜硫菌可以在黑暗中通过在氧气参与下氧化硫化合物来生长。