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  • Bangladesh Academy of Sciences  (4)
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  • Bangladesh Academy of Sciences  (4)
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  • 1
    Online Resource
    Online Resource
    Pollen morphology of the genus Oxytropis DC. in Turkey
    Bangladesh Academy of Sciences ; 2013
    In:  Bangladesh Journal of Botany Vol. 42, No. 1 ( 2013-07-28), p. 167-174
    Details
    In: Bangladesh Journal of Botany, Bangladesh Academy of Sciences, Vol. 42, No. 1 ( 2013-07-28), p. 167-174
    Abstract: Pollen morphology of 11 species of the genus Oxytropis DC. (Fabaceae) distributed in Turkey were examined with light (LM) and scanning electron microscope (SEM). Morphology of pollen grains shows isopolar, radially symmetric, tricolporate, prolate or subprolate, porus shape oblate or operculate and exine subtectate. The size varies with the polar axis from 19.52 - 33.31 ?m and the equatorial axis from 13.50 - 25.82 ?m. There are five ornamentation types: perforate at equatorial section and psilate at polar sections, microreticulate at equatorial sections and psilate at polar sections, microreticulate at equatorial sections and perforate at polar sections, microreticulate at both equatorial and polar sections and perforate at both equatorial and polar sections. Pollen aperture, shape and especially different ornamentation patterns at polar and equatorial section of pollen, as found in this study, appear to be important character. The findings of this study indicate the taxonomic implications of pollen morphology in understanding the similarity and relationships in the genus Oxytropis. DOI: http://dx.doi.org/10.3329/bjb.v42i1.15908 Bangladesh J. Bot. 42(1): 167-174, 2013 (June)
    Type of Medium: Online Resource
    ISSN: 2079-9926 , 0253-5416
    URL: Article
    DOI: 10.3329/bjb.v42i1.15908
    Language: Unknown
    Publisher: Bangladesh Academy of Sciences
    Publication Date: 2013
    detail.hit.zdb_id: 2491223-2
    SSG: 12
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    Online Resource
  • 2
    Online Resource
    Online Resource
    Pollen morphological study on some rare Allium L. (Amaryllidaceae) taxa in Turkey
    Bangladesh Academy of Sciences ; 2019
    In:  Bangladesh Journal of Plant Taxonomy Vol. 26, No. 1 ( 2019-06-25), p. 47-55
    Details
    In: Bangladesh Journal of Plant Taxonomy, Bangladesh Academy of Sciences, Vol. 26, No. 1 ( 2019-06-25), p. 47-55
    Abstract: The pollen morphology of 10 Allium L. taxa, 6 of which are endemic to Turkey, were investigated in detail by light and scanning electron microscopy. According to LM and SEM, the pollen grains of genera were monad, monosulcate percolate, heteropolar with bilateral symmetry, 25.30 to 53,85 µm long axis (LA) and 17.55 to 36.86 µm short axis (SA), the form was prolate (mean of LA/SA ratio 1.30 to 1.70 and in polar view boat-shaped. Three types of ornamentation were determined. Striate-rugulate-perforate type in Allium longisepalum, A. oreophilum, A. anacoleum, A. microspathum, A.shirnakiense, A. purpureoviride and A. armenum, Rugulate–perforate type in A. pervariense and A. gabardagense and Rugulate–reticulate-perforate type in A. arlgirdense. Sulcus membrane ornamentations were rugulate or psilate. The sulcus extends from the distal to proximal ends in A. anacoleum, A. arlgirdense and A. pervariense. The present study on some Turkish species of Allium showed that several morphological pollen characters may possess taxonomical value.
    Type of Medium: Online Resource
    ISSN: 2224-7297 , 1028-2092
    URL: Article
    DOI: 10.3329/bjpt.v26i1.41916
    Language: Unknown
    Publisher: Bangladesh Academy of Sciences
    Publication Date: 2019
    detail.hit.zdb_id: 2491559-2
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  • 3
    Online Resource
    Online Resource
    Pollen morphology of 10 taxa belonging to Prangos Lindl. and Ekimia H. Duman & M.F. Watson (Umbelliferae) from turkey and its taxonomic significance
    Bangladesh Academy of Sciences ; 2009
    In:  Bangladesh Journal of Plant Taxonomy Vol. 16, No. 2 ( 2009-12-05), p. 165-174
    Details
    In: Bangladesh Journal of Plant Taxonomy, Bangladesh Academy of Sciences, Vol. 16, No. 2 ( 2009-12-05), p. 165-174
    Abstract: Pollen grains of nine taxa of Prangos Lindl. and one of Ekimia H. Duman & M.F. Watson (Umbelliferae) were examined with LM (light microscope) and SEM (scanning electron microscope), and of them four with TEM (transmission electron microscope). The quantitative data were also subjected to cluster analysis. The obtained phenogram revealed that Ekimia bornmuelleri (Hub.-Mor. & Reese) H. Duman & M.F. Watson is strictly different from the taxa of Prangos regarding their quantitative pollen profile; except P. ferulacea Lindl., all taxa included in section Intactae formed a cluster together; members of section Meliocarpoides and section Prangos show a closer relationship regarding their pollen features. Exine ornamentations of Prangos and Ekimia are rugulate-striate and are of no value for identification purposes.
    Type of Medium: Online Resource
    ISSN: 2224-7297 , 1028-2092
    URL: Article
    DOI: 10.3329/bjpt.v16i2.3929
    Language: Unknown
    Publisher: Bangladesh Academy of Sciences
    Publication Date: 2009
    detail.hit.zdb_id: 2491559-2
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  • 4
    Online Resource
    Online Resource
    Anatomy and pollen morphology of 〈i〉Leymus racemosus〈/i〉 (Lam.) Tzvelev subsp. 〈i〉sabulosus〈/i〉 (Bieb.) Tzvelev and 〈i〉Leymus cappadocicus〈/i〉 (Boiss. & Bal.) Melderis
    Bangladesh Academy of Sciences ; 1970
    In:  Bangladesh Journal of Plant Taxonomy Vol. 18, No. 1 ( 1970-01-01), p. 27-38
    Details
    In: Bangladesh Journal of Plant Taxonomy, Bangladesh Academy of Sciences, Vol. 18, No. 1 ( 1970-01-01), p. 27-38
    Abstract: The present study aims to evaluate the anatomy of leaf and stem as well as pollen morphology in two taxa, namely L. racemosus (Lam.) Tzvelev subsp. sabulosus (Bieb.) Tzvelev and L. cappadocicus (Boiss. & Bal.) Melderis. Also, it is targeted to contribute to the morphology of these two taxa. The results have revealed varying anatomical characters in the types of stomata, wall appearance of the long cells, indumentum densities, dispositions of sclerenchyma around the vascular bundles, girders and strand shapes of the sclerenchymatic cells in the leaves, epidermal cell arrangements and epidermal cell sizes in the attachment points with sclerenchyma in the stems. Moreover, alternation in the pollen morphology concerning pollen size, operculum, undulation and the number of scabrae has also been demonstrated.Keywords: Leymus; Anatomy; Leaf; Pollen; Taxonomy.DOI: 10.3329/bjpt.v18i1.7836Bangladesh J. Plant Taxon. 18(1): 27-38, 2011 (June)
    Type of Medium: Online Resource
    ISSN: 2224-7297 , 1028-2092
    URL: Article
    DOI: 10.3329/bjpt.v18i1.7836
    Language: Unknown
    Publisher: Bangladesh Academy of Sciences
    Publication Date: 1970
    detail.hit.zdb_id: 2491559-2
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