POLLEN MORPHOLOGY OF SOME TAXA THAT BELONGING TO TRITICEAE DUMORT. TRIBE (GRAMINEAE) IN TURKEY

Bu çalıİmada Gramineae familyasının Triticeae oymaına ait Elymus L., Eremopyrum (Ledeb.) Jaub. & Spach, Heteranthelium Hochst., Crithopsis Jaub. & Spach, Ampblyopyrum Eig, Aegilops L., Triticum L., Dasypyrum (Cosson & Durieu) Cand., Secale L., Leymus Hochst., Psathyrostachys Nevsk., Hordeum L. Hordelymus (Jessen) Jessen, Taenitherium Nevsk ve Henrardia C. E. Hubbard taksonları, palinolojik özellikleri açısından incelenmiİtir. Bu taksonlara ait örnekler 105-T-171 numaralı ve Türkiye'de Bulunan Triticeae Dumort. (Gramineae) Oymaının Revizyonu isimli TÜBİTAK projesi kapsamında yapılan arazi çalıİmalarında toplanmıİtır. Elymus, Eremopyrum, Heteranthelium, Crithopsis, Ampblyopyrum, Aegilops, Triticum, Dasypyrum, Secale, Leymus, Psathyrostachys, Hordeum, Hordelymus, Taenitherium ve Henrardia cinslerine ait toplam 50 takson LM ve SEM kullanılarak incelenmiİtir. 5 Bu çalıİma sonucunda polen tektat, polen İekillerinin prolat-sferoidal, subprolat, oblat-sferoidal ya da suboblat olması ve simetrinin heteropolar olması gibi bazı ortak özellikler bulunmuİtur. Ayrıca apertür tipi monoporat ve por İekilleri ise prolat-sferoidal ve subprolattır. SEM mikrofotorafları da ornamentasyon yapılarının skabrat olduunu göstermiİtir.In this research, the genera Elymus L., Eremopyrum (Ledeb.) Jaub. & Spach, Heteranthelium Hochst., Crithopsis Jaub. & Spach, Ampblyopyrum Eig, Aegilops L., Triticum L., Dasypyrum (Cosson & Durieu) Cand., Secale L., Leymus Hochst., Psathyrostachys Nevsk., Hordeum L. Hordelymus (Jessen) Jessen, Taenitherium Nevsk ve Henrardia C. E. Hubbard belonging to the Tribus Triticeae of the family Gramineae, have been studied in terms of palynological properties. The specimens of these taxa were collected during the field surveys within the Project of TUBITAK namely The revision of the Tribus Triticeae Dumort. (Gramineae) in Turkey with the number of 105-T-171. Totally 50 taxa, included in the genera of Elymus, Eremopyrum, Heteranthelium, Crithopsis, Ampblyopyrum, Aegilops, Triticum, Dasypyrum, Secale, Leymus, Psathyrostachys, Hordeum, Hordelymus, Taenitherium and Henrardia were investigated using Light Microscope (LM) and Scanning Electron Microscope (SEM). 7 As a result of this study some common traits of the taxa found out such as polen tectate, the pollen shapes being prolat-spheroidal, subprolat, oblat-spheroidal or suboblat and the symmetry being heteropolar. Also, the type of the aperture is monoporat and the shape of the pores are prolat-spheroidal and subprolat. The SEM microphotographs shows that the ornamentations are scabrat

The pollen morphology of Pelargonium endlicherianum and Pelargonium quercetorum (Geraniaceae) in Turkey

The pollen morphology of Pelargonium endlicherianum Fenzl. and Pelargonium quercetorum Agnew. from the family Geraniaceae was examined under light microscopy and scanning electron microscopy. Pollen morphologies are eurypalynous. The pollen grains were tricolporate, prolate-spheroidal and large. Aperture was ectoaperture, colpus was short, and the pores were oblate-spheroidal and large. The exine ornamentations were striate-reticulate and the reticula were heterobrachate. The 2 species are invasive exotics in Turkey

The pollen morphology of Pelargonium endlicherianum and Pelargonium quercetorum (Geraniaceae) in Turkey

The pollen morphology of Pelargonium endlicherianum Fenzl. and Pelargonium quercetorum Agnew. from the family Geraniaceae was examined under light microscopy and scanning electron microscopy. Pollen morphologies are eurypalynous. The pollen grains were tricolporate, prolate-spheroidal and large. Aperture was ectoaperture, colpus was short, and the pores were oblate-spheroidal and large. The exine ornamentations were striate-reticulate and the reticula were heterobrachate. The 2 species are invasive exotics in Turkey

The pollen morphology of Pelargonium endlicherianum and Pelargonium quercetorum (Geraniaceae) in Turkey

The pollen morphology of Pelargonium endlicherianum Fenzl. and Pelargonium quercetorum Agnew. from the family Geraniaceae was examined under light microscopy and scanning electron microscopy. Pollen morphologies are eurypalynous. The pollen grains were tricolporate, prolate-spheroidal and large. Aperture was ectoaperture, colpus was short, and the pores were oblate-spheroidal and large. The exine ornamentations were striate-reticulate and the reticula were heterobrachate. The 2 species are invasive exotics in Turkey

Triticeae Dumort. (Gramineae) Tribus’unda bulunan Hordeum L., Triticum L., Secale L. cinslerine ait bazı taksonların polen morfolojileri

Angiospermlerin monokotiller sınıfında yer alan Gramineae (Poaceae) familyası, dünya çapında 6 alt familya, 50’den fazla tribus, 650 cins ve 10 000 türe sahip büyük bir familyadır. Ülkemizde ise 142 cins, 520 tür, 19 alt tür ve 52 varyete ile temsil edilir. Bu çalışmada 2005–2008 yılları arasında devam etmekte olan 105T171 numaralı ve “Türkiye’de Bulunan Triticeae Dumort.(Gramineae) Oymağının Revizyonu” isimli TÜBİTAK projesi kapsamında, tüm Türkiye çapında yürütülen araştırmalarda Gramineae familyasının Triticeae tribüsüne ait Triticum, Secale, Hordeum, cinslerine dahil olmak üzere toplamda 7 taksonun polen morfolojileri IM ve SEM ile ayrıntılı olarak incelenmiştir. Araştırılan taksonlara ait polenlerin ortak özellikleri tektat, monoporat, polen şekillerinin prolat-sferoidal, subprolat, oblatsferoidal ve suboblat, simetrisinin heteropolar, ve por şeklinin prolat-sferoidal, subprolat olmasıdır. Çalışmamızda ornamentasyona göre polenler; Skabrat, Gruplu skabralar karışık; Skabralar bir araya gelerek grup oluşturmuş. Bazı yerlerde arada serbest skabralarda var ve karışık görünüm sergilemektedir: Triticum aestivum Secale anatolicum. İnsular skabrat karışık; Hordeum murinum ssp. leporinum, Hordeum geniculatum, Hordeum bulbosum var. bourgaei, Triticum turgidum

Pollen Morphology of Some Taxa of Elymus L. Genus in Triticeae (Gramineae) Tribe

The true grasses are monocotyledonous plants (Class Liliopsida) in the Family Poaceae, also known as Gramineae. There are about 600 genera and between 9,000-10,000 species of grasses. It is estimated that grasslands comprise 20% of the vegetation cover of the earth. This family is the most important of all plant families to human economies, including lawn and forage grasses, the staple food grains grown around the world, and bamboo, widely used for construction throughout Asia.In our country, 142 genera, 520 species, 19 subspecies and 52 varieties are represented. In this study, ongoing between 2005-2008 105T171 number and "Revision of Triticeae Dumort. (Gramineae) Tribe in Turkey" within the scope of TUBITAK project, The pollen morphology of 5 Elymustaxa was examined in detail by IM and SEM. Pollen samples of 5(E. tauri(Boiss. &Bal.) Melderis, E. nodosus(Nevski) Melderis ssp. sinuatus (Nevski) Melderis, E. erosiglumisMelderis, E. elongatus(Host) Runemark ssp. Elongatus,E. pycnanthus(Godron) Melderis.) Elymustaxa used in this study were gathered from their natural habitats in Turkey. For light microscope (LM) investigations, pollen grains were taken from the herbarium materials and prepared according to the methods of Wodehouse (1935) and Erdtman (1960). SEM studies were conducted by direct mounting of seed samples on stubsattached with sticky tape. The specimens were coated in a sputter coater with Gold-Palladium using Polaron SC502 trade gold coater. The specimens were then studied and photographed by a Jeol JSM-6060.5taxa of 19taxa found in this gynecologic country were examined palynologically. Pollen is prolate-spheroidal and subprolate. Pollen is heteropolar symmetry. Por is prolate-spheroidal or subprolate. Annulus is quite distinctive in SEM photographs, its inner and outer edges are pointed structure. The operculum is oval and polygonal. Tectum usually scabrate. On the basis of exine ornamentation family has been divided into 2pollen types. Poaceae is a stenopalynous family. The pollen grains are generally apolar, monoporate–diporate rarely triporate.Tectum is generally areolate, areolate cum scabrate, or simply scabrate. Similar type of tectum are also observed in the other members of the family Poaceae by Faegri & Iversen (1964) and Andersen & Bertelsen (1972). According to Thanikaimoni (1985), Poaceae pollen were evolved from monosulcate-monoporate to operculate. Skvarla et al., (2003) reported non-annulated pollen in the genus Parian. Baser et al., (2009) reported monoporate, heteropolar, prolate-spheroidal and operculate-annulate pollen, with mixed scabrate type exine and insular type in The result indicate that the Elymushas stenopalynous pollen grains thus the value of pollen characters for taxonomic implications is limited. Faegri & Iversen and Perveen alson mentioned about the uniformity of grass pollen causes one of the greatest difficulties in pollen analysis.The authors would like to thank to Central Laboratory personel of Middle East Technical University for their assistance in coating the pollen samples and taking their photographs during the SEM studies. We also wish to thank to the Scientific and TechnicalResearch Council of Turkey( TUBITAK-TBAG-105T171) for their financial asistance

Morphology of pollen in Ferula genus (Apiaceae)

In this study, the pollen morphology of all Ferula species distributed throughout the country of Turkey was studied with light and scanning electron microscopy for the first time. The aim is to identify the pollen morphological characteristics of 23 Ferula species. The pollen is radially symmetrical, isopolar and tricolporate in all examined species. Pollen grains are prolate and perprolate with the polar axis ranging from 22.28 to 40.47 µm and the equatorial axis from 13.70 to 18.73 µm. Their polar shapes are triangular, triangular to subtriangular and circular to subcircular. Several types of exine ornamentations have been observed on pollen through the use of scanning electron microscopy. The dendrogram constructed by using Average Linkage of the examined data revealed two main groups. It was determined that some pollen characteristics are more useful for classification than others. In particular, P, E, the ratio of P/E (pollen shape) and ornamentation in the polar and equatorial views are the most valuable variables for discrimination the Ferula species

Pollen morphology of the genus oxytropis DC. in Turkey

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 µm and the equatorial axis from 13.50 - 25.82 µm. 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