Using denaturing
gradient gel electrophoresis (DGGE) analysis, Proteocatella,
Tepidibacter, and Clostridium were found to disappear when paper
mill anaerobic granular sludge were pretreated at pH 9 or 10
(Huang et al., 2014), while uncultured bacterium was reported to
be capable of adapting well at high pH (Jie et al., 2014).