Proposal of the suffix -ota to denote phyla. Addendum to 'Proposal to include the rank of phylum in the International Code of Nomenclature of Prokaryotes'.

As an addendum to the earlier proposal to include the rank of phylum in the International Code of Nomenclature of Prokaryotes (Oren et al., Int J Syst Evol Microbiol 2015;65:4284-4287) we propose the suffix -ota to denote phyla, replacing the somewhat awkward -aeota. We therefore present a new draft modified version of Rule 8 of the International Code of Nomenclature of Prokaryotes and a corrected list of names of phyla to be considered for validation after approval of the proposal to include the rank of phylum in the Code.

Effects of nicotine on the biosynthesis of carotenoids in halophilic Archaea (class Halobacteria): an HPLC and Raman spectroscopy study.

Nicotine has a profound influence on the carotenoid metabolism in halophilic Archaea of the class Halobacteria. In a study of Halobacterium salinarum, Haloarcula marismortui and Halorubrum sodomense, using different analytical techniques to monitor the production of different carotenoids as a function of the presence of nicotine, we showed that the formation of α-bacterioruberin was inhibited in all. In Hbt.

On names of genera of prokaryotes that are later homonyms of generic names with standing in the zoological or the botanical nomenclature. Proposal of Neomegalonema gen. nov. and Neomegalonema perideroedes comb. nov. as replacements for the prokaryotic generic name Meganema and the species name Meganema perideroedes.

I here present a survey of generic names with standing in the prokaryotic nomenclature that have homonyms with standing under the International Code of Zoological Nomenclature and/or the International Code of Nomenclature for algae, fungi, and plants. I especially discuss such names added after Principle 2 of the Bacteriological Code/Prokaryotic Code was changed in 1999 to make the prokaryote nomenclature not independent of botanical and zoological nomenclature. Cases include the genera Micromonas, Quadrococcus, Yania, Sinococcus, and Meganema.

Correction of the name Amycolatopsis albidoflavus to Amycolatopsis albidiflava corrig. Request for an Opinion.

The name Amycolatopsis albidoflavus Lee and Hah 2001 is malformed because the genus name Amycolatopsis has the feminine gender. It is here proposed to correct the name to Amycolatopsis albidiflava corrig.

Proposal to correct the generic name Flaviaesturariibacter Kang, Chun, Seo, Kim and Jahng 2015, 2212 to Flavaestuariibacter. Request for an Opinion.

The generic name Flaviaesturariibacter Kang, Chun, Seo, Kim and Jahng 2015, 2212 is malformed: being derived from the Latin noun aestuarium, …aestuarii… instead of …aesturarii… is required. Moreover, according to Appendix 9 of the Prokaryotic Code, a connecting vowel must be dropped when the following word element starts with a vowel. I therefore propose to correct the name Flaviaesturariibacter to Flavaestuariibacter.

Proposal to designate the order Actinomycetales Buchanan 1917, 162 (Approved Lists 1980) as the nomenclatural type of the class Actinobacteria. Request for an Opinion.

The name of the class Actinobacteria is illegitimate according to Rules 15, 22 and 27(3) because it was proposed without the designation of a nomenclatural type. I therefore propose to designate the order Actinomycetales Buchanan 1917, 162 (Approved Lists 1980) as its nomenclatural type, based on Rule 22 of the International Code of Nomenclature of Prokaryotes.

Proposal to modify Rule 10a and to delete Recommendation 10a(3) from the International Code of Nomenclature of Prokaryotes.

Principle 2 of the Prokaryotic Code, as modified by the ICSP in 1999, reads: 'The nomenclature of prokaryotes is not independent of botanical and zoological nomenclature. When naming new taxa in the rank of genus or higher, due consideration is to be given to avoiding names which are regulated by the International Code of Zoological Nomenclature and the International Code of Nomenclature for algae, fungi and plants'. But in the current version of the Prokaryotic Code no Rule implements this version of Principle 2.

Proposal to designate Methylothermus subterraneus Hirayama et al. 2011 as the type species of the genus Methylothermus. Request for an Opinion.

Methylothermus thermalis, the designated type species of the genus Methylothermus, is not available from culture collections and its nomenclatural type is a patent strain. According to Rule 20a of the International Code of Nomenclature of Prokaryotes, only species whose names are legitimate may serve as types of genera. Therefore, the name Methylothermus and the names of the species Methylothermus thermalis and Methylothermus subterraneus are not validly published and are illegitimate.