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. 2026 May 20;16:15751. doi: 10.1038/s41598-026-52476-w

Table 2.

Comparison of phenotypic characteristics of strain SH139T to the closest relatives “Ca. Laterigemmans baculatus” CH01T, Roseimaritima ulvae UC8T, Roseimaritima sediminicola JC651T, and Roseimaritima multifibrata FF011LT.

Characteristics SH139T “Ca. Laterigemmans baculatus” CH01T R. sediminicola JC651T R. ulvae
UC8T
R. multifibrata FF011LT
Sampling Information
Location

Kiel,

Germany

Odisha,

India

Odisha,

India

Northern coast, Portugal

Helgoland,

Germany

Sampled Material surface water of Fjord Schlei, estuary of the Baltic Sea sediment, Chilika lagoon sediment, Chilika lagoon

marine macroalga

(Ulva sp.)

marine macroalga

(Laminaria sp.)

Phenotypic features
Pigmentation reddish-orange dark pink light pink light pink pink to red
Cell Shape pear-shaped rod-shaped round to pear-shaped spherical to ovoid elongated pear-shape
Size (Length x width) (µm)

2.1 ± 0.2 x

1.5 ± 0.1

3.0–4.0 x

0.5–0.8

1.0–2.0 x

0.8–1.5

1.1–1.8 x

0.9–1.5

2.0 ± 0.3 x

1.0 ± 0.2

Cell Division Mode

asymmetric

(polar budding)

asymmetric (lateral budding)

asymmetric

(polar budding)

asymmetric

(polar budding)

asymmetric

(polar budding)

Temperature range

(optimum) (°C)

18–28 (21) n.d. 15–40 (25) 15–35 (30) 12–30 (26)
pH range (optimum) 7.0–8.0 (7.5) n.d. 6.0–9.0 (7.5) 6.0–10.0 (7.5) 5.5–10.0 (7.5)
Relation to Oxygen aerobic aerobic aerobic aerobic aerobic
Aggregates yes yes yes, rosettes yes, rosettes yes, rosettes

n.d., not determined. Features of “Ca. Laterigemmans baculatus” CH01T, R. ulvae UC8T, R. sediminicola JC651T, and R. multifibrata FF011LT were obtained from the respective species descriptions.