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Variations of lamina cross sections of the studied Onobrychis Species, A-O. caput-galli, B-O. aequidentata, C-O. cristagalli, D-O. haussknechtii , E-O. megataphros, F-O. schahuensis, G-O. susiana, H-O. kotschyana. I-O. ptolemaica, J-O. acaulis, K-O. galegifoliaa (4X) and L-O. haussknechtii, magnified portion of lamina(40X). Uep= upper epidermis, lep= lower epidermis, pa= palsied, sp= spongy cells, st= stomata, vb= vascular bundle, ta= tannins, tr= trichomes, cr= crystal.
Source publication
In the current research, the anatomical characteristics of stem and leaves cross sections of 11 species belong to the genus Onobrychis Mill. have been studied. From this study, some anatomical features, such as the outline of stem and leaves cross sections are described, and the differences were determined among them. The epidermis trichomes, colle...
Contexts in source publication
Context 1
... pith is innermost of the stem toward the center is a mass of parenchymatous tissue with different sizes of thin wall, with large cell spaces parenchyma cells, which almost become hollow at maturity. Figure 4). ...
Context 2
... trichomes were noticed in both epidermis in most studied taxa except O. caputgalli, O. aequidentata, and O. crista-galli. There are non (Figure 4). ...
Context 3
... are arranged in 4-6 layers of cells and sometimes rectangular oval or irregular shaped in O. haussknechtii, O. megataphros, O. schahuensis, O. kotschyana and O. ptolemaica. Whilst arranged in 5-6 layers cells and are usually cylindrical or irregular shaped in O. cristagalli, O. galegifoliaa and O. susiana (Figure 4). ...
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Citations
... The cross-section of the herbaceous stem of O. argaea exhibits the general stem anatomical features of the Papilionoidea subfamily (including single-layered epidermis, collenchyma, cortex layer, cambium, and parenchymatic pith, respectively). Similar outcomes were documented in the investigations conducted by Tekin & Yılmaz (2015) and Al-Otraqche (2022). However, while some parenchymatic cells in the pith region of O. quadrijuga turned into stone cells, such a situation was not observed in our study. ...
... Non-secretory trichomes were observed in both epidermal layers. The leaflets are amphistomatic as stomata are found on both surfaces of the epidermis, similar to other studies (Amirabadizadeh et al. 2015, Al-Otraqche 2022. ...
Onobrychis argaea belonging to the Fabaceae family, is an endangered plant species endemic to Turkey, distributed only in Kayseri Erciyes Mountain. This study represents the first comprehensive investigation into the morphology, anatomy, pollen and seed micromorphology, and chromosome characteristics of O. argaea. The previous description of the species has been expanded and modified. The pith of the root is covered with xylem tissue. In the stem cross-section, the protective tissue is periderm in the woody part and epiderm in the herbaceous part. The leaflets are amphistomatic and equifacial. The pollen grains are radially symmetric, isopolar, tricolpate, with prolate shape and reticulate-microreticulate ornamentation. The seeds are reniform, yellowish-brown, suboblate, and exhibit rugulate surface ornamentation. The number of somatic chromosomes in O. argaea is 2n = 14. The karyotype formula of this species consists of seven median chromosomes.
... The epidermis was single layer and contains stomata in all studied species. Whereas the epidermis of O. galegifolia comprises the unicellular non-glandular hairs, and the species T. echinatum was distinguished by the presence of unicellular papillae hairs on the epidermis, as proven by (Al-Otraqche, 2022). ...
The fruit and seeds of six species within six genera belonging to the Fabaceae family were studied. The paraffin method was applied to microscopic studies. The study showed different fruit outline shapes and the fruiting layers varying among them, however, all fruits consisted of three layers the exocarp, mesocarp, and endocarp. The thickness of pericarp layers was different in all taxa. Although the shape of seeds was different among all studied taxa except O. galegifolia and T. echinatum they were similar, the seed contents were examined as well, the testa tissue was described and the embryo shape and position were determined, where O. galegifolia was the single species devoid of macrosclereids.
... The epidermis was single layer and contains stomata in all studied species. Whereas the epidermis of O. galegifolia comprises the unicellular non-glandular hairs, and the species T. echinatum was distinguished by the presence of unicellular papillae hairs on the epidermis, as proven by (Al-Otraqche, 2022). ...
The fruit and seeds of six species within six genera belonging to the Fabaceae family were studied. The paraffin method was applied to microscopic studies. The study showed different fruit outline shapes and the fruiting layers varying among them, however, all fruits consisted of three layers the exocarp, mesocarp, and endocarp. The thickness of pericarp layers was different in all taxa. Although the shape of seeds was different among all studied taxa except O. galegifolia and T. echinatum they were similar, the seed contents were examined as well, the testa tissue was described and the embryo shape and position were determined, where O. galegifolia was the single species devoid of macrosclereids.
The present study was designed to assess the morphology, anatomy and pollen morphology of six Onobrychis species native to Pakistan, aiming at enriching their characterization. Among the morphological features, stipules, bracts, floral segments (calyx, vexillum, wing, keel, stamen and carpel) and fruits along with seed morphology were studied. Consequently, for anatomical study slides were prepared and properly stained to assess their characters in stem, petiole, peduncle and leaflet. Among the morphological characters, the ones that significantly varied among the studied taxa were the shape and size of stipules, calyx teeth shape and size, color, shape and size of the corolla, ovary shape and size, pod along with seeds shape and size. Pollen grains were tricolpate, isopolar and radially symmetrical, prolate in shape and obtuse convex in general view. Exine ornamentation was micro-reticulate (O. cornuta and O. laxiflora), supra-reticulate (O. dealbata), micro-reticulate perforate (O. micrantha), micro-reticulate granulate (O. stewartii), and reticulate (O. tavernierifolia). Polar to equatorial ratio (P/E ratio) was measured from minimum 1.35 in O. laxiflora to maximum 1.65 in O. dealbata. In addition, ordination (PCA) and clustering (UPGMA) analysis were performed on measured pollen characters. Among the anatomical features, variations were found in the outline of the stem, petiole, peduncle and leaflet, the number of layers of collenchyma and parenchyma in the stem, number of vascular bundles, pith shape in the petiole and peduncle. In leaflets anatomy, the numbers of layers of palisade and spongy parenchyma were assessed in the studied species.
