Corrigendum: Differences in Bioenergetic Metabolism of Obligately Alkaliphilic Bacillaceae Under High pH Depend on the Aeration Conditions.

[This corrects the article DOI: 10.3389/fmicb.2022.842785.].

In the original article, there was a mistake in the legend for Figure 2 as published. It described that “The acid residue-abundant segment of Glu25-Lys46 (Glu6-Lys27 in the processed protein base) in S. cohnii DSM 6307T is indicated by green box” at L2 –L3. The correct legend appears below.

Figure 2. Amino acid sequence alignment of membrane bound cytochrome c-550 from Evansella clarkii and other alkaliphilic and neutralophilic Bacillaceae. Asn (N)-rich segment, Asn (N)21-Asn (N)43 [Asn (N)4-Asn (N)26 in the processed protein base] in the E. clarkii cytochromes c is indicated by red box. The acid residue-abundant segment of Glu25-Lys46 (Glu6-Lys27 in the processed protein base) in S. cohnii DSM 6307T is indicated by red box. N-terminal amino acid residue in processed cytochrome c, [Cys (C)] is indicated by blue marker. The blue boxed sequences are heme sequences representing heme-binding site and axical ligands (H and M). Acidic and basic residues are indicated by blue and red letters. Although A. pseudofirmus OF4 is a facultative alkaliphile, the species A. pseudofirmus and the presented cytochrome c sequence are classified in obligate alkaliphile. Although Sporosarcina pasteurii is an obligate alkaliphile, its cytochrome c sequence is similar to those in the facultative alkaliphilic strains.

In the original article, there was a mistake in Table 2 as published. The unit for respiratory rate was incorrect. The corrected Table 2 appears below.

Table 2

Summary for high aeration and low aeration in obligate alkaliphilic Evansella clarkii, facultative alkaliphilic Sutcliffiella cohnii, and neutralophilic Bacillussubtilis.

	Growth rate (μmax)1	Cytochrome c content (nmol ·mg−1)1	ΔΨ (mV)1,2	Respiratory rate (μmol ·O2 min−1 mg−1)2	H+/O1	Maximum ATP synthesis rate2 (nmol ·min−1 ·mg−1)2
E. clarkii DSM8720TLow aeration	0.36	0.89 ± 0.07	−135 ± 8	ND	0.6 ± 0.1 (6)§	ND
E. clarkii DSM 8720THigh aeration	0.42	0.36 ± 0.01	−192 ± 3	0.19 ± 0.04	2.2 ± 0.2 (6)	26.2 ± 1.7
S. cohnii YN-2000High aeration	0.38	0.62 ± 0.01	−173 ± 5	0.20 ± 0.03	2.6 ± 0.3 (6)	9.6 ± 0.9
B. subtilis IAM 1026Low aeration	0.26	0.18 ± 0.06	−133 ± 13	ND	2.8 ± 0.8 (6)	ND
B. subtilis IAM 1026High aeration	0.55	0.21 ± 0.02	−121 ± 7	0.50 ± 0.06	4.9 ± 0.1 (6)	2.0 ± 0.6

These data cited from

Goto (

Goto et al. (.

The numbers in parentheses are based on the theoretically extruded H.

The authors apologize for this error and state that this does not change the scientific conclusions of the article in any way. The original article has been updated.

Publisher's Note

All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher.