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Anatomical Study of Salicornieae Dumort. (Chenopodiaceae Vent.) Native to Iran

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Author(s): Maryam Keshavarzi | Golshan Zare

Journal: International Journal of Botany
ISSN 1811-9700

Volume: 2;
Issue: 3;
Start page: 278;
Date: 2006;
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Keywords: Anatomy | Salicornieae | Chenopodiaceae | Salicornia | Halocnemum | Halostachys | Arthrocnemum | Microcnemum | Iran

ABSTRACT
Tribe Salicornieae (Salicornioideae, Chenopodiaceae) includes halophyte plants. Five genera (6 species) of this tribe are distributed in different habitats of Iran. Members of this tribe have reduced vegetative parts, scale like leaves and articulated stems. The variation of anatomical characters of the tribe was studied in Iran using fresh and herbarium materials. In this study quantitative and qualitative anatomical characters for 36 accessions of tribe Salicornieae were evaluated. Morphological variation is fairly high and partly overlapping so they are not sufficient to distinguish these taxa. Despite some uniformity in stem and root transverse sections and stomata type, some anatomical variation is distinct. In epidermis there are some differences in stomata index, width and length of guard cells and papilla features between taxa. In the stem transverse sections the width of aquatic tissues and medullary zone, number of vascular bundles, shape of tracheid cells and papilla hairs show some variations. The great variability in anatomical characters of Salicornia species indicated that this taxon should be studied more carefully by molecular and histochemical methods further. Anatomical features of stem and epidermis are capable of resolving taxonomic problems of this tribe in Iran.
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