Contribution to the systematic knowledge of endemic Aubrieta pinardii Boiss. (Brassicaceae) from Turkey

Abstract

The aim of this study was to document the taxonomical, morphological, anatomical, palynological and cytological characters, and geographical distribution of endemic Aubrieta pinardii Boiss. (Brassicaceae) from Turkey. The description of the taxon was revised as a consequence of comprehensive assessments of many specimens. The surface pictures belonging to seed and pollen of the taxon were obtained by Scanning Electron Microscope. The seed surface ornamentation was rugose. The pollen was radially and isopolar and prolate in forms, with polar axes of 19.52 ± 0.29 μm and equatorial axes of 13.04 ± 0.22 μm, with oval outlines in the equatorial axes, and elliptical in the polar axes. They were three–colpate and colpus sizes varied between 12.98 μm and 13.29 μm in length, and between 1.33 and 2.09 μm in width. Also, the anatomical structures of the root, stem and leaf of species were studied. In cytological studies, the chromosome number of species was found as 2n = 16 (x =8). This was the first work including taxonomical, morphological (macro and micro), anatomical and cytological data of endemic Aubrieta pinardii.
 Bangladesh J.Plant Taxon. 27(1): 27-35, 2020 (June)

Seed Morpho-Anatomical Characters of Some Cardamine taxa from Turkey

“…C. graeca is separated with its slightly striped seed surfaces from other taxa, which have a smooth surface. The macromorphological results of this research are compatible with the former works performed with macromorphological features on seeds of Brassicaceae family (Khalik and Maesen, 2002;Kasem et al, 2011;Kaya et al, 2011;Karaismailoğlu and Erol, 2018;Karaismailoğlu, 2019aKaraismailoğlu, , 2019bŞirin and Karaismailoğlu, 2020).…”

“…The significance and efficiency of scanning electron microscopy in explaining of the taxonomic difficulties (Heywood, 1971). Many studies have shown that seed micromorphological features are helpful characteristics to utilize in discriminating of the taxa in Brassicaceae family (Barthlott, 1981;Koul et al, 2000;Kasem et al, 2011;Karaismailoğlu and Erol, 2018;Karaismailoğlu, 2016Karaismailoğlu, , 2019aKaraismailoğlu, , 2019bŞirin and Karaismailoğlu, 2020). In this work, it has utilized scanning electron microscopy to explain difficulties in taxonomy of taxa, and reveal adaptive significance of seed coat.…”