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Anatomy, cell wall structure and topochemistry of waterlogged archaeological wood aged 5,200 and 4,500 years
ID
Čufar, Katarina
(
Avtor
),
ID
Gričar, Jožica
(
Avtor
),
ID
Zupančič, Martin
(
Avtor
),
ID
Koch, Gerald
(
Avtor
),
ID
Schmitt, Uwe
(
Avtor
)
PDF - Predstavitvena datoteka,
prenos
(7,06 MB)
MD5: 097B5F7FAD42F565DB336B7DB8A29E40
PID:
20.500.12556/rul/96ddb324-ae8e-43ca-8d48-9a115733f101
Galerija slik
Izvleček
Deterioration grade of water logged archaeological wood is decisive to select treatments of its conservation and storage, particularly in case of valuable archaeological artefacts. For this purpose archaeological wood of ash (Fraxinus sp.) and oak (Quercus sp.) buried in waterlogged conditions at prehistoric settlements on the Ljubljansko barje (Ljubljana moor), Slovenia, aged approx. 5,200 and 4,500 years, was investigated by means of light microscopy (LM), transmission electron microscopy (TEM) and cellular UV-microspectrophotometry (UMSP). LM and TEM revealed that the ash wood aged 5,200 years was the least preserved. The secondary walls of fibres, vessels and parenchyma cells were considerably thinner than in normal wood, indicating distinct degradation. TEM and UMSP additionally revealed strong delignification of the remaining parts of the secondary walls of all cell types. The compound middle lamellae appeared structurally intact, but had lower UV-absorbance than normal wood of the same species. The cell corners were topochemically unchanged, as shown by high analogue UV-absorbance. The UV-absorbance maxima at a wavelength of 278 nm corresponded to those of hardwood lignins. The oak heartwood was generally better preserved than the ash wood. Within the same species, the 4,500 year-old samples generally appeared better preserved than those 5,200 years old.
Jezik:
Angleški jezik
Ključne besede:
archaeological wood
,
light microscopy
,
cell wall
,
Quercus sp.
,
Fraxinus sp.
,
electron microscopy
,
UV microspectrophotometry
,
topochemistry
Vrsta gradiva:
Delo ni kategorizirano
Tipologija:
1.01 - Izvirni znanstveni članek
Organizacija:
BF - Biotehniška fakulteta
Leto izida:
2008
Št. strani:
Str. 55-68
Številčenje:
Vol. 29, No. 1
PID:
20.500.12556/RUL-36430
UDK:
630*81
ISSN pri članku:
0928-1541
COBISS.SI-ID:
1621129
Datum objave v RUL:
10.07.2015
Število ogledov:
1850
Število prenosov:
354
Metapodatki:
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Objavi na:
Gradivo je del revije
Naslov:
IAWA journal
Skrajšan naslov:
IAWA j.
Založnik:
Rijksherbarium/Hortus botanicus
ISSN:
0928-1541
COBISS.SI-ID:
29065
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