Porphyrosiphon annulatus D. Kim, N. Lee, S. Yoon, T. Kim, Ki & O. Lee 2022
- Dataset
- Porphyrosiphon annulatus sp. nov. (Oscillatoriales, Cyanobacteria) isolated on moist soil in Suwon, Republic of Korea
- Rank
- SPECIES
- Published in
- Kim, Do-Hyun, Lee, Nam-Ju, Yoon, Sung-Ro, Kim, Taehee, Ki, Jang-Seu, Lee, Ok-Min (2022): Porphyrosiphon annulatus sp. nov. (Oscillatoriales, Cyanobacteria) isolated on moist soil in Suwon, Republic of Korea. Phytotaxa 532 (3): 288-300, DOI: 10.11646/phytotaxa.532.3.6
Classification
- kingdom
- Bacteria
- phylum
- Cyanobacteria
- class
- Cyanophyceae
- order
- Nostocales
- family
- Oscillatoriaceae
- genus
- Porphyrosiphon
- species
- Porphyrosiphon annulatus
description
Description: Thallus tomentose, expanded, and blue-green to yellowish-brown. Filament straight or slightly curved and up to 30 µm in width, a filament contains a solitary trichome, but occasionally two. Sheaths firm and thick, longitudinally and transversely annular lamellated, yellowish-brown in nature. Sheaths initially colorless and later yellow-brown or pink in the culture. Trichome blue to green, constricted at the cross-walls, not attenuated at the end, motile. Cells flat rectangle with L / W 1 / 3 – 1 / 4, 4.2 – 6.1 μm long and 11.1 – 23.2 μm wide. Apical cells conical or round without calyptra. Reproduction with hormogonia formed by necridic cells.
diagnosis
Diagnosis: Porphyrosiphon annulatus had a relatively large trichome by the interspecies comparison, possessed shorter and flatter rectangular cells compared to the type species P. notarisii, and displayed transversely annular lamellations in the sheath.
etymology
Etymology: “ annulatus ” was named so because sheath yielded a feature of transversely annular lamellations.
materials_examined
Holotype (designated here): A formalin fixed specimen, NIBRCY 0000001276 in the Herbarium at the National Institute of Biological Resources (KB), from cultured strain FBCC-A 1260. Reference strain: FBCC-A 1260. Additional strains: FBCC-A 1263, FBCC-A 1264, FBCC-A 1265. Type locality: Iui-dong, Yeongtong-gu, Suwon-si, Gyeonggi-do, Korea (37 ° 18 ’ 17.5 ” N; 127 ° 02 ’ 03.4 ” E) (Fig. 1). Habitat: On the moist soil under the rock in Mt. Gwanggyo. Gene sequences: 16 S rRNA, 16 S – 23 S ITS, and 23 S rRNA gene sequences with GenBank accession numbers of MW 880693 to MW 880696.