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. 2021 Jun 10;16(6):e0252291. doi: 10.1371/journal.pone.0252291

Table 6. Data for swimming Archaea.

Species Geometry Kinematics References
B W Flagella U Notes
Halobacterium halobium (2 − 5) Cells can have either a mono or bipolar tuft of flagella and display “Super flagella”. L = 3.85 ± 0.1 (Lsuper = 22 ± 2), λ = 1 ± 0.02, h = 0.36 ± 0.09, (1.59 ± 0.39 − 2.94 ± 0.34) Strains wild-type NRL, M407, M416 and Flx37 were examined. Monopolar flagellated cells. Bipolar flagellated cells. Counterclockwise rotation of flagellar bundle. Clockwise rotation of flagellar bundle. [233, 234]
Halobacterium salinarum 2.6 ± 0.5(1.6 − 10) 0.43 ± 0.07 (max1) Cells can show either a mono- or bipolar tuft of flagella. L = 4.3 ± 1, λ = 2.1 ± 0.2, h = 0.22 ± 0.03. 3.3 ± 0.9 (max10) ω = 23 ± 5, Ω = 2.9 ± 2.5. Estimatedpower and torque required to rotate the archaellum are 7.710−18 W and 50 pN nm, respectively. Temperature range of swimming: 20 − 65°C. [76, 133, 147, 235]
Methanocaldococcus jannaschii 1.5 Polar bundle of flagella. L < 5, nw = 2. 380 ± 40(max 589) Temperature range of swimming: 20-90°C (optimal growth at 85°C). In zigzag movement, U = (50 − 100). [147, 236, 237]
Methanocaldococcus villosus (1 − 1.66) N ≈ 50, L = 3.08⋆† 287 ± 36(max468) Temperature range of swimming: 50-90°C (optimal growth at 80°C). In zigzag movement: U = (80 − 120). Estimate: it was very hard to distinguish precisely. [147, 238]
Methanococcus maripaludis (1.1 − 1.5) N ≈ 25, L = (1.93 − 2.16), λ = 0.97(0.8 − 1.12), h = 0.15(0.077 − 0.2). 25 ± 3.4 (max 45) Temperature range of swimming: 20-60°C (optimal growth at 37°C). In zigzag movement: U < 10. [147, 236, 239, 240]
Methanococcus voltae (1.5 − 2) N ≈ 30, L = 1.71(0.86 − 2.56)⋆†. 80 ± 8.5 (max128) Temperature range of swimming: 20-55°C (optimal growth at 37°C).Average of all registered values [147, 236, 241]
Methanospirillum hungatei (7.4 − 10) (0.4 − 0.5) N = (5 − 10) in a polar tuft, L ≤ 10, λ = 2 ± 0.2, h = 0.34 ± 0.08. (3 − 10) Strain GP 1. [236, 242]
Pyrococcus furiosus 2.5 N ≈ 50, L = 7. 62 ± 7 (max110) Temperature range of swimming: 70-95°C (optimal growth at 100°C). In zigzag movement: U = (30 − 50). [147, 236]
Haloarcula quadrata (2.36 − 3.07) L = 5.18, nw = 4, λ = 1.23(0.88 − 1.75), h = 0.12(0.11 − 0.15). 0.81 (0.44 − 1.02) Isolate 801030/1 grown at 40°C, identified as Haloarcula quadrata. Cells are square or retangular shaped. [74]
Sulfolobus acidocaldarius (0.9 − 1.5) 45 ± 4.2 (max60) Temperature range of swimming: 30-80°C (optimal growth at 70°C). [147, 236]