Lignin of ancient plant fossils
Lignin of ancient plant fossils
A comprehensive study of dispersed Early Carboniferous seeds has been carried out to test the possibilities of using chemosystematics for Paleozoic fossils. This has involved their morphology; the ultrastructure of ion thinned sections and their material. The results of analysis of the FTIR and EPR spectra indicate that the key structural unit of the substance is the phenyl propane structure. The presence of relict lignin (p‑coumaric type) was established by structural-chemical analysis using pyrolytic chromatomass-spectrometry. Lignins of this type are unknown in modern plants. The concentration of phenoxyl radicals is 2–3 orders of magnitude higher in the samples than in modern lignins.
1055-1066
Telnova, O. P.
80b665b6-ebd1-4966-a549-897003be1444
Marshall, J. E. A.
cba178e3-91aa-49a2-b2ce-4b8d9d870b06
Kocheva, L. S.
3bc45f89-b803-498a-9d61-9a2b3b43dee6
Karmanov, A. P.
16995c5d-bbfa-4803-8513-8cb048a21c5d
1 December 2022
Telnova, O. P.
80b665b6-ebd1-4966-a549-897003be1444
Marshall, J. E. A.
cba178e3-91aa-49a2-b2ce-4b8d9d870b06
Kocheva, L. S.
3bc45f89-b803-498a-9d61-9a2b3b43dee6
Karmanov, A. P.
16995c5d-bbfa-4803-8513-8cb048a21c5d
Telnova, O. P., Marshall, J. E. A., Kocheva, L. S. and Karmanov, A. P.
(2022)
Lignin of ancient plant fossils.
Paleontological Journal, 56 (9), .
(doi:10.1134/S0031030122090076).
Abstract
A comprehensive study of dispersed Early Carboniferous seeds has been carried out to test the possibilities of using chemosystematics for Paleozoic fossils. This has involved their morphology; the ultrastructure of ion thinned sections and their material. The results of analysis of the FTIR and EPR spectra indicate that the key structural unit of the substance is the phenyl propane structure. The presence of relict lignin (p‑coumaric type) was established by structural-chemical analysis using pyrolytic chromatomass-spectrometry. Lignins of this type are unknown in modern plants. The concentration of phenoxyl radicals is 2–3 orders of magnitude higher in the samples than in modern lignins.
Text
PalEng9_22Telnova et al
- Accepted Manuscript
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Accepted/In Press date: 19 January 2022
Published date: 1 December 2022
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Local EPrints ID: 475606
URI: http://eprints.soton.ac.uk/id/eprint/475606
ISSN: 0031-0301
PURE UUID: c41f1510-165a-437d-8a30-9f785b423895
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Date deposited: 22 Mar 2023 17:38
Last modified: 17 Mar 2024 07:38
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Contributors
Author:
O. P. Telnova
Author:
L. S. Kocheva
Author:
A. P. Karmanov
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