Fig 7 - uploaded by Mehmet Tekin
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Pollen grains photomicrographs (A, C, E, G) and micrographs (B, D, F, H) of Aethionema lepidioides. A, B -an equatorial view, C, D -detailed apertures and exine ornamentation in an equatorial view, E, F -a polar view, G, H -detailed apertures and exine ornamentation in a polar view.
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Aethionema lepidioides Hub.-Mor. is an endangered endemic species in Turkey with a very narrow natural distribution area. The present study aims to reveal the structural features of this species. For this purpose, its unknown morphological features – such as leaf, petal, sepal dimensions and shapes, filament and anther lengths, as well as seed dime...
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... pollens of Ae. lepidioides are monad, radially symmetrical and isopolar. The pollen type is colpate, and its shape is prolate-spheroidal with a P/E ratio of 1.08. The pollen outline is elliptic or circular from an equatorial view (Fig. 7A-D) and circular from a polar view (Fig. 7E-G). The length of their polar axis is 15.05-20,43 μm (mean: 18.65 μm), and the length of their equatorial axis is 14.66-20.16 μm (mean: 17.19 μm). Their colpus is long, stretching along the polar axis. Their colpus length is 13.29-16.33 μm (mean: 15.11 μm), and their colpus width is 4.22-9.07 μm ...
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... pollens of Ae. lepidioides are monad, radially symmetrical and isopolar. The pollen type is colpate, and its shape is prolate-spheroidal with a P/E ratio of 1.08. The pollen outline is elliptic or circular from an equatorial view (Fig. 7A-D) and circular from a polar view (Fig. 7E-G). The length of their polar axis is 15.05-20,43 μm (mean: 18.65 μm), and the length of their equatorial axis is 14.66-20.16 μm (mean: 17.19 μm). Their colpus is long, stretching along the polar axis. Their colpus length is 13.29-16.33 μm (mean: 15.11 μm), and their colpus width is 4.22-9.07 μm (mean: 7.04 μm). Colpus borders are evident ...
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... 7E-G). The length of their polar axis is 15.05-20,43 μm (mean: 18.65 μm), and the length of their equatorial axis is 14.66-20.16 μm (mean: 17.19 μm). Their colpus is long, stretching along the polar axis. Their colpus length is 13.29-16.33 μm (mean: 15.11 μm), and their colpus width is 4.22-9.07 μm (mean: 7.04 μm). Colpus borders are evident (Fig. 7B, F-H). The exine thickness is 0.81-1.43 μm (mean: 1.22 μm), and the exine ornamentation is reticulate, with large lumina in both the equatorial and the polar sides (Fig. ...
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... stretching along the polar axis. Their colpus length is 13.29-16.33 μm (mean: 15.11 μm), and their colpus width is 4.22-9.07 μm (mean: 7.04 μm). Colpus borders are evident (Fig. 7B, F-H). The exine thickness is 0.81-1.43 μm (mean: 1.22 μm), and the exine ornamentation is reticulate, with large lumina in both the equatorial and the polar sides (Fig. ...
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... diversity is rare amongst different species of the same genus (Erdtman 1972, Reile 1992, Abdel Khalik et al. 2002, Tekin and Martin 2017. The pollens of Ae. lepidioides were found to be tricolpate, with reticulate exine ornamentation, by light microscope and SEM -identical to the general pollen structure of the Brassicaceae family (Erdtman 1972) (Fig. ...
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... armenum. Ceter et al. (2018) also studied the pollen morphology of 23 Aethionema species, including Ae. lepidioides. Both Atçeken et al. (2016) andCeter et al. (2018) reported such pollen features as symmetry, polarity, pollen type and exine ornamentation to be identical to the corresponding features found in the present study for Ae. lepidioides (Fig. 7). However, some differences were also observed. Atçeken et al. (2016) found the pollen shapes of Ae. cordatum and Ae. karamanicum to be prolate, observing the corresponding shapes for Ae. armenum and Ae. arabicum to be subprolate and prolatespheroidal, respectively. According to the present study's findings, Ae. lepidioides -which has a ...
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... shape was determined to be prolate-spheroidal. Additionally, another important difference was found with respect to colpus dimensions. While Ceter et al. (2018) reported the mean pollen colpus length and width of Ae. lepidioides as 11.4 μm and 4.2 μm, respectively, the present study identified these values as 15.11 μm and 7.04 μm, respectively (Fig. 7C, F). Moreover, while Ceter et al. (2018) determined an exine thickness of 1 μm, the current study found an exine thickness of 1.22 μm for Ae. lepidioides. Consequently, the present study and the study by Ceter et al. (2018) found significant differences in the same species' pollen features -such as shape, colpus length and width, and exine ...
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... pollens of Ae. lepidioides are monad, radially symmetrical and isopolar. The pollen type is colpate, and its shape is prolate-spheroidal with a P/E ratio of 1.08. The pollen outline is elliptic or circular from an equatorial view (Fig. 7A-D) and circular from a polar view (Fig. 7E-G). The length of their polar axis is 15.05-20,43 μm (mean: 18.65 μm), and the length of their equatorial axis is 14.66-20.16 μm (mean: 17.19 μm). Their colpus is long, stretching along the polar axis. Their colpus length is 13.29-16.33 μm (mean: 15.11 μm), and their colpus width is 4.22-9.07 μm ...
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... pollens of Ae. lepidioides are monad, radially symmetrical and isopolar. The pollen type is colpate, and its shape is prolate-spheroidal with a P/E ratio of 1.08. The pollen outline is elliptic or circular from an equatorial view (Fig. 7A-D) and circular from a polar view (Fig. 7E-G). The length of their polar axis is 15.05-20,43 μm (mean: 18.65 μm), and the length of their equatorial axis is 14.66-20.16 μm (mean: 17.19 μm). Their colpus is long, stretching along the polar axis. Their colpus length is 13.29-16.33 μm (mean: 15.11 μm), and their colpus width is 4.22-9.07 μm (mean: 7.04 μm). Colpus borders are evident ...
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... 7E-G). The length of their polar axis is 15.05-20,43 μm (mean: 18.65 μm), and the length of their equatorial axis is 14.66-20.16 μm (mean: 17.19 μm). Their colpus is long, stretching along the polar axis. Their colpus length is 13.29-16.33 μm (mean: 15.11 μm), and their colpus width is 4.22-9.07 μm (mean: 7.04 μm). Colpus borders are evident (Fig. 7B, F-H). The exine thickness is 0.81-1.43 μm (mean: 1.22 μm), and the exine ornamentation is reticulate, with large lumina in both the equatorial and the polar sides (Fig. ...
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... stretching along the polar axis. Their colpus length is 13.29-16.33 μm (mean: 15.11 μm), and their colpus width is 4.22-9.07 μm (mean: 7.04 μm). Colpus borders are evident (Fig. 7B, F-H). The exine thickness is 0.81-1.43 μm (mean: 1.22 μm), and the exine ornamentation is reticulate, with large lumina in both the equatorial and the polar sides (Fig. ...
Context 12
... diversity is rare amongst different species of the same genus (Erdtman 1972, Reile 1992, Abdel Khalik et al. 2002, Tekin and Martin 2017. The pollens of Ae. lepidioides were found to be tricolpate, with reticulate exine ornamentation, by light microscope and SEM -identical to the general pollen structure of the Brassicaceae family (Erdtman 1972) (Fig. ...
Context 13
... Ceter et al. (2018) also studied the pollen morphology of 23 Aethionema species, including Ae. lepidioides. Both Atçeken et al. (2016) and Ceter et al. (2018) reported such pollen features as symmetry, polarity, pollen type and exine ornamentation to be identical to the corresponding features found in the present study for Ae. lepidioides (Fig. 7). However, some differences were also observed. Atçeken et al. (2016) found the pollen shapes of Ae. cordatum and Ae. karamanicum to be prolate, observing the corresponding shapes for Ae. armenum and Ae. arabicum to be subprolate and prolate-spheroidal, respectively. According to the present study's findings, Ae. lepidioides -which has ...
Context 14
... shape was determined to be prolate-spheroidal. Additionally, another important difference was found with respect to colpus dimensions. While Ceter et al. (2018) reported the mean pollen colpus length and width of Ae. lepidioides as 11.4 μm and 4.2 μm, respectively, the present study identified these values as 15.11 μm and 7.04 μm, respectively (Fig. 7C, F). Moreover, while Ceter et al. (2018) determined an exine thickness of 1 μm, the current study found an exine thickness of 1.22 μm for Ae. lepidioides. Consequently, the present study and the study by Ceter et al. (2018) found significant differences in the same species' pollen features -such as shape, colpus length and width, and exine ...
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... Although many morphological studies have occurred, only a few anatomical studies are found on Lepidium species worldwide (Grigore & Toma, 2008;Sangekar, Devarkar, Shaikh, Shahane, & Kshirsagar, 2018) The anatomical study of Aethionema lepidioides conducted by Tekin (2022) shows the importance of the anatomical characteristics in plant taxonomy for Brassicaceae family members. This is the first detailed study to elucidate on the root, stem, and leaf anatomical features of Lepidium graminifolium. ...
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