Devonian spores of Kryshtofovichia africani Nikitin (Tracheophyta): morphology and ultrastructure
Devonian spores of Kryshtofovichia africani Nikitin (Tracheophyta): morphology and ultrastructure
The morphology and ultrastructure of spores of the Devonian plant Kryshtofovichia africani Nikitin are examined. The structure of ultrathin exine megaspores of K. africani is established. The exine consists of two layers: granular ectexine and lamellate endexine. Microspores have a lamellate ultrastructure with a trend toward loosening and formation of the granular structure towards the ectexine outer part. Heterospory of K. africani is apparent in both morphological characters and sporoderm ultrastructure of micro- and megaspores.
Devonian, Kryshtofovichia africani, megaspores, microspores, morphology, ultrastructure
342-349
Telnova, O. P.
80b665b6-ebd1-4966-a549-897003be1444
Marshall, J. E.A.
cba178e3-91aa-49a2-b2ce-4b8d9d870b06
Telnova, O. P.
80b665b6-ebd1-4966-a549-897003be1444
Marshall, J. E.A.
cba178e3-91aa-49a2-b2ce-4b8d9d870b06
Telnova, O. P. and Marshall, J. E.A.
(2018)
Devonian spores of Kryshtofovichia africani Nikitin (Tracheophyta): morphology and ultrastructure.
Paleontological Journal, 52 (3), .
(doi:10.1134/S0031030118030152).
Abstract
The morphology and ultrastructure of spores of the Devonian plant Kryshtofovichia africani Nikitin are examined. The structure of ultrathin exine megaspores of K. africani is established. The exine consists of two layers: granular ectexine and lamellate endexine. Microspores have a lamellate ultrastructure with a trend toward loosening and formation of the granular structure towards the ectexine outer part. Heterospory of K. africani is apparent in both morphological characters and sporoderm ultrastructure of micro- and megaspores.
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Accepted/In Press date: 1 May 2018
e-pub ahead of print date: 14 June 2018
Keywords:
Devonian, Kryshtofovichia africani, megaspores, microspores, morphology, ultrastructure
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Local EPrints ID: 424837
URI: http://eprints.soton.ac.uk/id/eprint/424837
ISSN: 0031-0301
PURE UUID: 4c5d1c13-77bb-4468-9039-5b4a1d8dea8e
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Date deposited: 05 Oct 2018 11:49
Last modified: 16 Mar 2024 02:35
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Author:
O. P. Telnova
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