Chloroplast division during leaf development of Xanthium pensylvanicum Wallr. (Compositae)

Division and growth of chloroplasts was studied during leaf development of Xanthium pensylvanicum at various stages of development represented by the leaf plastochron index.Between leaf plastochron indices -1.00 and 2.56 chloroplast division was observed with little enlargement. Between 2.50 and 5.0...

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Bibliographic Details
Main Authors: Roman Maksymowych, Norman Dollahon, Russell J. Williams, Joseph A.J. Orkiszewski
Format: Article
Language:English
Published: Polish Botanical Society 2014-01-01
Series:Acta Societatis Botanicorum Poloniae
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Online Access:https://pbsociety.org.pl/journals/index.php/asbp/article/view/744
Description
Summary:Division and growth of chloroplasts was studied during leaf development of Xanthium pensylvanicum at various stages of development represented by the leaf plastochron index.Between leaf plastochron indices -1.00 and 2.56 chloroplast division was observed with little enlargement. Between 2.50 and 5.00 chloroplasts enlarged in diameter with an average rate of 0.21 µm per day. At leaf plastochron index 5.00 chloroplasts attained their mature size of 6.12 µm. No chloroplast division was found after leaf plastochron index 2.50. A change in shape of plastids from spherical proplastids to discoidal accompanied their growth during stages 2.50 and 5.00.
ISSN:2083-9480