TABLE 3.
Weights, QPCR results, and collagenolytic activity for whole individuals of various Osedax speciesa
| Osedax speciesb | Mean ± SD (no. of individuals)
|
|||
|---|---|---|---|---|
| Wt (g) | QPCR ratio of bacterium/host | Collagenolytic activity (U g−1 [wet wt])
|
||
| Type I | Type IV | |||
| O. frankpressi adult | 0.34 ± 0.17 (10) | 0.38 ± 0.13 (7) | 5.9 ± 4.4 (3) | 0.9 ± 0.3 (2) |
| O. frankpressi recruit | NM | 0.44 ± 0.06 (2) | NM | NM |
| Osedax sp. MB3 | 0.03 ± 0.01 (10) | 0.57 ± 0.15 (6) | 6.8 ± 4.3 (3) | 1.9 ± 1.6 (2) |
| Osedax sp. MB4 | 0.01 ± 0.01 (6) | 1.63 ± 0.21 (4) | 18.4c (1) | 5.8c (1) |
a
QPCR results are shown as ratios of bacterial 16S versus eukaryote 18S rRNA abundance. NM, not measured.
b
Activities listed are for whole individuals.
c
Due to their small size, activity measurements for collagen types I and IV were made on separate individuals of Osedax sp. MB4.