Register list for 57 new names including Actinopolariaceae fam. nov.

The taxon is equivalent to placeholder class c__UBA1384 under the GTDB R220.

The taxon is equivalent to placeholder order o__CADDZG01 under the GTDB R220.

The taxon is equivalent to placeholder order o__UBA4738 under the GTDB R220.

The taxon is equivalent to placeholder order o__JAHWKV01 under the GTDB R220.

The taxon is equivalent to placeholder order o__JACCXV01 under the GTDB R220.

The taxon is equivalent to placeholder order o__JACDCP01 under the GTDB R220.

The taxon is equivalent to placeholder order o__CAILIB01 under the GTDB R220.

The taxon is equivalent to placeholder family f__WHSQ01 under the GTDB R220.

The taxon is equivalent to placeholder family f__UBA4738 under the GTDB R220.

The taxon is equivalent to placeholder family f__JAHWKV01 under the GTDB R220.

The taxon is equivalent to placeholder family f__JAHWKZ01 under the GTDB R220.

The taxon is equivalent to placeholder family f__JACDCP01 under the GTDB R220.

The taxon is equivalent to placeholder family f__UBA1924 under the GTDB R220.

The taxon is equivalent to placeholder family f__CAILIB01 under the GTDB R220.

The taxon is equivalent to placeholder family f__B-1AR under the GTDB R220.

The taxon is equivalent to placeholder genus g__JACDCJ01 under the GTDB R220.

The taxon is equivalent to placeholder genus g__JAJCYE01 under the GTDB R220.

New genus defined based on the lack of proximal relatives within the placeholder family f__JAHWKZ01 (=Cryogemmataceae).

New genus defined based on the lack of proximal relatives within the family (Gemmataceae).

The taxon is equivalent to placeholder genus g__Ornithinimicrobium_A under the GTDB R220.

New genus defined based on the lack of proximal relatives within the family (Terrimicrobiaceae).

The taxon is equivalent to placeholder genus g__JACDCP01 under the GTDB R220.

New genus defined based on the lack of proximal relatives within the family (Burkholderiaceae).

The taxon is equivalent to placeholder genus g__JACVCS01 under the GTDB R220.

The taxon is equivalent to placeholder genus g__JACDBE01 under the GTDB R220.

The taxon is equivalent to placeholder genus g__CALBLZ01 under the GTDB R220.

The taxon is equivalent to placeholder genus g__TH5893 under the GTDB R220.

The taxon is equivalent to placeholder genus g__TA-21 under the GTDB R220.

New genus defined based on the lack of proximal relatives within the family (Hymenobacteraceae).

The taxon is equivalent to placeholder genus g__PALSA-1081 under the GTDB R220.

New genus defined based on the lack of proximal relatives within the placeholder family f__B-1AR (=Ventifactibacteraceae).

New genus defined based on the lack of proximal relatives within the family (Chitinophagaceae).

The type material is the metagenome assembled genome BH-24_ACT26 recovered from soil from Bunger Hills, East Antarctica. The MAG consists of 2.4 Mbp in 93 contigs with an estimated completeness of 98.12% and 0.45% contamination, 16S (1903 bp), 23S (1773 bp), and 5S (117 bp) genes, and 40 tRNAs (20 unique: 19 standard plus tRNA-SeC). The GC content of this MAG is 67.4%. Predicted to be able to reduce nitrate via NO-forming nitrite reductase and oxidise trace gases, i.e., CO and H2, using the aerobic CO dehydrogenase and high affinity [NiFe]-hydrogenase type 1m.

The type material is the metagenome assembled genome BH-20_ACT24 recovered from soil from Bunger Hills, East Antarctica. The MAG consists of 2.5 Mbp in 107 contigs with an estimated completeness of 93.99% and 0.16% contamination, 16S (1532 bp), 23S (4576 bp), and 5S (117 bp) genes, and 47 tRNAs (21 unique: 19 standard plus tRNA-fMet and tRNA-SeC). The GC content of this MAG is 68.3%. Predicted to consume H2 at atmospheric levels (high affinity [NiFe]-hydrogenase type 1m). Genome also harbours catechol 2,3-dioxygenase [EC:1.13.11.2]. This species is equivalent to the placeholder species s__JACDCJ01 sp013817655 under the GTDB R220.

The type material is the metagenome assembled genome BH-10_ACT1 recovered from soil from Bunger Hills, East Antarctica. The MAG consists of 4.7 Mbp in 189 contigs with an estimated completeness of 97.03% and 1.79% contamination, 16S (1525 bp), partial 23S (457 bp), and 5S (117 bp) genes, and 46 tRNAs (21 unique: 20 standard plus tRNA-fMet). The GC content of this MAG is 71.6%.

The type material is the metagenome assembled genome BH-09_PSE1 recovered from soil from Bunger Hills, East Antarctica. The MAG consists of 3.2 Mbp in 138 contigs with an estimated completeness of 92.9% and 1.66% contamination, 16S (1463 bp), and 5S (115 bp) genes, and 42 tRNAs (19 unique: 18 standard plus tRNA-fMet). The GC content of this MAG is 67.4%. Predicted to oxidise sulfur (soxB, S-sulfosulfanyl-L-cysteine sulfohydrolase [EC:3.1.6.20]).

The type material is the metagenome assembled genome BH-23_ACT12 recovered from soil from Bunger Hills, East Antarctica. The MAG consists of 2.4 Mbp in 140 contigs with an estimated completeness of 93.71% and 0.1% contamination, 16S (2399 bp) and 23S (2000 bp) genes, and 44 tRNAs (21 unique: 19 standard plus tRNA-fMet and tRNA-SeC). The GC content of this MAG is 64.7%. Predicted to fix carbon via Calvin–Benson–Bassham cycle using a RuBisCO type IE.

The type material is the metagenome assembled genome BH-18_GEM1 recovered from soil from Bunger Hills, East Antarctica. The MAG consists of 2.5 Mbp in 116 contigs with an estimated completeness of 94.07% and 0.69% contamination, 16S (1572 bp) gene, and 46 tRNAs (20 unique: 18 standard plus tRNA-fMet and tRNA-SeC). The GC content of this MAG is 67.6%. Predicted to reduce nitrite (NO-forming nitrite reductase) and oxidise CO aerobically.

The type material is the metagenome assembled genome BH-11_PLA2 recovered from soil from Bunger Hills, East Antarctica. The MAG consists of 6.6 Mbp in 220 contigs with an estimated completeness of 99.77% and 1.09% contamination, 16S (1504 bp), 23S (2758 bp), and 5S (109 bp) genes, and 57 tRNAs (22 unique: 20 standard plus tRNA-fMet and tRNA-SeC). The GC content of this MAG is 60.2%.

The type material is the metagenome assembled genome BH-23_ACT6 recovered from soil from Bunger Hills, East Antarctica. The MAG consists of 2.9 Mbp in 154 contigs with an estimated completeness of 90.24% and 0.47% contamination, 16S (1522 bp), 23S (3115 bp), and 5S (117 bp) genes, and 43 tRNAs (20 unique: 19 standard plus tRNA-fMet). The GC content of this MAG is 65.8%. Predicted to aerobically oxidise CO.

The type material is the metagenome assembled genome BH-09_VER1 recovered from soil from Bunger Hills, East Antarctica. The MAG consists of 6.1 Mbp in 69 contigs with an estimated completeness of 96.82% and 1.47% contamination, 16S (1526 bp), 23S (1995 bp), and 5S (116 bp) genes, and 58 tRNAs (21 unique: 20 standard plus tRNA-fMet). The GC content of this MAG is 58.7%.

The type material is the metagenome assembled genome BH-24_PSE2 recovered from soil from Bunger Hills, East Antarctica. The MAG consists of 2.7 Mbp in 49 contigs with an estimated completeness of 100% and 0.1% contamination, 16S (1545 bp), 23S (4142 bp), and 5S (117 bp) genes, and 45 tRNAs (20 unique: 19 standard plus tRNA-fMet). The GC content of this MAG is 64.1%. Predicted to consume H2 at atmospheric concentrations (high affinity [NiFe]-hydrogenase type 1l).

The type material is the metagenome assembled genome BH-11_ARM2 recovered from soil from Bunger Hills, East Antarctica. The MAG consists of 4.0 Mbp in 138 contigs with an estimated completeness of 98.05% and 0.03% contamination, 16S (1507 bp), partial 23S (1480 bp), and 5S (117 bp) genes, and 47 tRNAs (22 unique: 20 standard plus tRNA-fMet and tRNA-SeC). The GC content of this MAG is 62.1%.

The type material is the metagenome assembled genome BH-10_PSE17 recovered from soil from Bunger Hills, East Antarctica. The MAG consists of 4.2 Mbp in 112 contigs with an estimated completeness of 94.52% and 0.82% contamination, 16S (1531 bp), 23S (1860 bp), and 5S (114 bp) genes, and 45 tRNAs (21 unique: 19 standard plus tRNA-fMet and tRNA-SeC). The GC content of this MAG is 66.5%. Predicted to degrade hydrocarbons (long-chain alkane monooxygenase [EC:1.14.14.28], and phthalate 4,5-dioxygenase [EC:1.14.12.7]).

The type material is the metagenome assembled genome BH-11_PLA1 recovered from soil from Bunger Hills, East Antarctica. The MAG consists of 3.2 Mbp in 39 contigs with an estimated completeness of 90.62% and 0.36% contamination, 16S (1484 bp), 23S (2744 bp), and 5S (107 bp) genes, and 47 tRNAs (21 unique: 20 standard plus tRNA-fMet). The GC content of this MAG is 67.5%.

The type material is the metagenome assembled genome BH-24_ACT7 recovered from soil from Bunger Hills, East Antarctica. The MAG consists of 2.8 Mbp in 109 contigs with an estimated completeness of 98.4% and 2.8% contamination, 16S (1526 bp), 23S (3088 bp), and 5S (117 bp) genes, and 50 tRNAs (21 unique: 20 standard plus tRNA-fMet). The GC content of this MAG is 69.7%. Predicted to reduce nitrite (NO-forming nitrite reductase) and oxidise CO aerobically.

The type material is the metagenome assembled genome BH-11_PAT4 recovered from soil from Bunger Hills, East Antarctica. The MAG consists of 0.9 Mbp in 17 contigs with an estimated completeness of 93.99% and 0.08% contamination, 16S (1475 bp), 23S (3502 bp), and 5S (117 bp) genes, and 42 tRNAs (21 unique: 20 standard plus tRNA-fMet). The GC content of this MAG is 51.3%.

The type material is the metagenome assembled genome BH-18_THE2 recovered from soil from Bunger Hills, East Antarctica. The MAG consists of 3.6 Mbp in 204 contigs with an estimated completeness of 99.1% and 1.46% contamination, 16S (1472 bp), 23S (2054 bp), and 5S (120 bp) genes, and 46 tRNAs (21 unique: 20 standard plus tRNA-iMet). The GC content of this MAG is 37.8%. Predicted to be an ammonia oxidising archaeon.

The type material is the metagenome assembled genome BH-18_THE1 recovered from soil from Bunger Hills, East Antarctica. The MAG consists of 2.0 Mbp in 231 contigs with an estimated completeness of 92.59% and 2.56% contamination, 16S (1469 bp), 23S (2048 bp), and 5S (120 bp) genes, and 43 tRNAs (20 unique: 19 standard plus tRNA-iMet). The GC content of this MAG is 35.8%. Predicted to be an ammonia oxidising archaeon. This species is equivalent to the placeholder species s__TA-21 sp023251115 under the GTDB R220.

The type material is the metagenome assembled genome BH-09_ACT11 recovered from soil from Bunger Hills, East Antarctica. The MAG consists of 2.5 Mbp in 55 contigs with an estimated completeness of 94.69% and 0% contamination, 16S (1525 bp) and 5S (117 bp) genes, and 42 tRNAs (19 unique standard). The GC content of this MAG is 67%. Predicted to aerobically oxidise CO.

The type material is the metagenome assembled genome BH-10_BAC2 recovered from soil from Bunger Hills, East Antarctica. The MAG consists of 5.9 Mbp in 81 contigs with an estimated completeness of 100% and 0.07% contamination, 16S (1529 bp) and 23S (2541 bp) genes, and 48 tRNAs (21 unique: 20 standard plus tRNA-fMet). The GC content of this MAG is 38.5%. Predicted to aerobically oxidise CO, and reduce nitrite (NO-forming nitrite reductase). Genome also harbours a catechol 2,3-dioxygenase [EC:1.13.11.2] and a sensory rhodopsin.

The type material is the metagenome assembled genome BH-24_BAC1 recovered from soil from Bunger Hills, East Antarctica. The MAG consists of 5.6 Mbp in 1179 contigs with an estimated completeness of 98.42% and 2.26% contamination, 16S (1521 bp), 23S (212 bp), and 5S (112 bp) genes, and 28 tRNAs (17 unique standard). The GC content of this MAG is 54.5%.

The type material is the metagenome assembled genome BH-10_CYA1 recovered from soil from Bunger Hills, East Antarctica. The MAG consists of 7.5 Mbp in 91 contigs with an estimated completeness of 100% and 4.31% contamination, 16S (1508 bp), 23S (2963 bp), and 5S (116 bp) genes, and 66 tRNAs (22 unique: 20 standard plus tRNA-fMet and tRNA-SeC). The GC content of this MAG is 49%. Predicted to be involved in nitrogen cycling (nitrate reductase, NarG; and nitric oxide reductase, NorB). The genome also harbours a sensory rhodopsin but no photosynthetic machinery.

The type material is the metagenome assembled genome BH-10_BAC5 recovered from soil from Bunger Hills, East Antarctica. The MAG consists of 3.4 Mbp in 46 contigs with an estimated completeness of 99.02% and 1.73% contamination, 16S (1518 bp), 23S (2939 bp), and 5S (115 bp) genes, and 42 tRNAs (21 unique: 20 standard plus tRNA-fMet). The GC content of this MAG is 35.2%. Predicted to be able to reduce nitrite (nitrite reductase (NO-forming) [EC:1.7.2.1]).

The type material is the metagenome assembled genome BH-11_VER1 recovered from soil from Bunger Hills, East Antarctica. The MAG consists of 5.0 Mbp in 86 contigs with an estimated completeness of 99.66% and 0.58% contamination, 16S (1537 bp), 23S (2844 bp), and 5S (116 bp) genes, and 45 tRNAs (21 unique: 20 standard plus tRNA-fMet). The GC content of this MAG is 55%. Predicted to degrade phthalate (phthalate 4,5-dioxygenase [EC:1.14.12.7]).

The type material is the metagenome assembled genome BH-09_BAC2 recovered from soil from Bunger Hills, East Antarctica. The MAG consists of 2.6 Mbp in 16 contigs with an estimated completeness of 100% and 0.12% contamination, 16S (1527 bp), 23S (2941 bp), and 5S (117 bp) genes, and 35 tRNAs (21 unique: 20 standard plus tRNA-fMet). The GC content of this MAG is 37.5%. Predicted to degrade alkanes (alkane 1-monooxygenase) and at least capable of partial denitrification (predicted nitrous-oxide reductase [EC:1.7.2.4], and nitric oxide reductase subunit B [EC:1.7.2.5]).