Abstract
This paper presents in detail petiole anatomy of 21 representatives of tribe Alysseae, 5 of which are endemic from Turkey. In the examined taxa, differences have found in the petiole shape, arrangement and number of vascular bundles, and the presence of collenchyma. Petiole shapes are in sulcate, circular, or flat types. The most common type is sulcate with blunt or acute margins. The epidermises are in 1, 2 or more layer. The number of vascular bundles in the examined taxa varies between 1 (Berteroa mutabilis) and 9 (Alyssum strictum and A. strigosum subsp. strigosum) in total. In addition, vascular bundles in the middle are broadly or narrowly arc-shaped with 1-5 lobed. These results display that the compared petiole anatomical characteristics among the examined taxa are somewhat suitable to their delimitation in traditional rank in the Flora of Turkey.
Highlights
The petiole anatomy of 21 Alysseae taxa was first studied in detail (Figures 1-2 and Table 2)
Epidermis cells are 5.16±0.21 μm x 4.05±0.44 μm. Both epidermises are covered with an undulated cuticle. It founds 2-3 layers collenchyma in the middle of the petiole, 7-8 layers collenchyma at the margins
The results obtained from this study showed that the anatomical characteristics of the petioles may provide in the taxonomical applications
Summary
Brassicaceae is a significant plant family because of including economic plant species and model organisms like Arabidopsis Heynh. and Thlaspi L. Brassicaceae is a significant plant family because of including economic plant species and model organisms like Arabidopsis Heynh. Brassicaceae includes about 338 genera and 3709 species worldwide, mainly in temperate regions of the Northern Hemisphere (Al-Shehbaz et al, 2006; Karaismailoğlu, 2016). In Turkey, this family has 571 species with 65 subspecies, 24 varieties, and 660 taxa belonging to 91 genera (Al-Shehbaz et al, 2007). One of the biggest tribes within family Brassicaceae is tribe Alysseae, which is of circa 7% of the family’s species variety (AlShehbaz, 2012; Rešetnik et al, 2013). The exhaustive morphological studies on tribe have been performed by Hayek (1911), Schulz (1936), Janchen (1942) and Al-Shehbaz et al (2006). Generic delimitation and relations within tribe Alysseae are still inadequately known (Al-Shehbaz, 2012), because of the convergent properties that are common in characters
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
