Conservation Science

Chapter 11 Conservation of Ancient Timbers from the Sea MARK JONES^1 AND ROD EATON^2 (^1) The Mary RoseTrust, HM Naval Base, Por ...

Conservation of Ancient Timbers from the Sea 267 The wood-boring molluscs comprise the teredinids or shipworms (family Teredinid ...

268 Chapter 11 Infection of fresh wood occurs after completion of the reproductive process followed by settlement and attachment ...

feature for identifying species of shipworm. In addition, the delicate nature of the pallets of some species demands extreme car ...

270 Chapter 11 note are Paralimnoriaand Phycolimnoria. The adult animals are whitish grey in appearance and are quite small, ran ...

Conservation of Ancient Timbers from the Sea 271 and the pleotelson – have ornamentations on the dorsal surface that are used fo ...

272 Chapter 11 The ability of sphaeromatids to digest wood fragments excavated during burrowing is unclear, and although gut cel ...

rather than excavate their own tunnels. The close association between these two groups of wood-borers not only offers the chelur ...

274 Chapter 11 2.3 Erosion Bacteria Erosion bacteria are considered the dominant microbial degraders of archaeo- logical, waterl ...

into amorphous material mixed with bacterial cells and bacterial slime. It can therefore be concluded that extracellular mucilag ...

276 Chapter 11 is apparently random and transmission electron microscopy (TEM) shows bacteria penetrating through the primary wa ...

cavities. Attack is initiated at the lumen surface where bacteria attach them- selves via extracellular slime. Following penetra ...

the surface the wood is invariably sound. Soft-rotted wood is characteristically darkened in colour and has a spongy soft textur ...

Conservation of Ancient Timbers from the Sea 279 of ‘start–stop’ apical growth of fine hyphae combined with cavity expansion due ...

coalesce and eventually break through the S 3 layer into the cell lumen. In severely decayed wood, the high-lignin-containing co ...

Conservation of Ancient Timbers from the Sea 281 sustain growth and decay ability. Studies with terrestrial white rot fungi have ...

but since adults are found in the galleries as well, it is not clear how the wee- vils survive inundation of the wood, albeit br ...

vertical and radial orientation of cell types there is the possibility for water movement through narrow pits in the wood cell w ...

284 Chapter 11 propane units. It is a recalcitrant molecule that is degraded slowly in nature and along with the hemicelluloses, ...

Conservation of Ancient Timbers from the Sea 285 3.2 Properties and Condition of Waterlogged Archaeological Wood The result of m ...