Browsing by Author "Sepet, H"

Now showing 1 - 8 of 8
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    CYTOGENETIC EFFECTS OF 48TITANIUM (48TI) ON MERISTEMATIC CELLS OF ROOT TIPS OF LENS CULINARIS MED.
    Sepet, H; Çanli, M; Özdemir, A; Bozdag, B; Özdemir, C
    Cytogenetic effects of (48)Titanium (Ti-48) on meristematic cells of root tips belonging to the plant (Lens culinaris Medik.) have been Investigated. Seeds of the plant, prepared were kept in Ti-48 standart for different time period as control during 1/4, 1/2, 1, 2, 4, 8, 12, 16, 20, 24 hours. Seeds treated with Ti-48 were made sprout and the root tips obtained were prepared for microscopic examination. At the end of the microscopic examinations, some abnormalities as chromosome breakings, chromosome dispersion, bridge chromosome, chromosome adherence, ring chromosome were observed. Abnormalities were seen at each treatment depended on the time periods. Variety and number of abnormality were usually seen to be increasing, depending on the increase of treatment time. The results obtained were evaluated statistically.
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    Cytological study on Hippocrepis ciliata L. and Hippocrepis unisiliquosa ssp. unisiliquosa L. (Leguminosae) in Turkey
    Yetisen, K; Özdemir, C; Sepet, H
    Somatic chromosome numbers and karyotype of Hippocrepis unisiliquosa ssp. unisiliquosa L. and Hippocrepis ciliata L. (Leguminosae) collected from Turkey were examined. Chromosome numbers were determined as 2n = 2x = 14 in Hippocrepis unisiliquosa ssp. unisiliquosa L. and Hippocrepis ciliata. The mitotic chromosome number and karyotype of the taxa were reported here for the first time.
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    Cytological study the genus Chesneya Lindl. (Fabaceae) in Turkey
    Sepet, H; Özdemir, C; Bozdag, B
    In the present research, karyotype and meiotic analysis of Chesneya Lindl. species of Turkey were performed. The chromosome numbers and karyotype analysis of the species were here reported for the first time from Turkey. The chromosomes number determined are Chesneya rytidosperma Jaub. & Spach and Chesneya elegans Fomin 2n = 2x = 16.
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    Karyotype analysis on the species of Bellis L. (Asteraceae) in Turkey
    Özdemir, BBC; Sepet, H
    In the present research, the chromosome number and morphology of Bellis L. species of Turkey were analyzed. The chromosomes number are determined as Bellis sylvestris Cyr.2n: 36, Be perennis L.2n: 18 and Be Ills annua L. 2n: 18. The karyotype analysis of the investigated species are here reported for the first time from Turkey.
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    KARYOLOGICAL STUDIES ON SOME PHLOMIS L TAXA (LAMIACEAE)
    Özdemir, C; Durmuskahya, C; Sepet, H; Bozdag, B
    In present study the chromosome number and morphology of some species of the genus Phlomis Linnaeus (Lamiaceae) were investigated using karyological techniques. The seeds of Phlomis grandiflora H. S. Thompson, var. grandiflora and Phlomis lunariifolia Sm. were collected from natural habitats. The chromosome numbers were determined for all species as 2n = 20. The chromosome numbers and karyotype analysis of the species were here reported for the first time from Turkey.
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    A karyological study on taxa of Coronopus DC section of Plantago L. genus (Plantaginaceae) in Turkey
    Bozdag, B; Sepet, H; Özdemir, C
    In this study the chromosome number and morphology of five taxa of the Coronopus D.C. section - Plantago coronopus subsp. coronopus L., P. coronopus subsp. commutata (GUSS.) PLGER, P. crassifolia FORSSKAL, P. maritima L., and P. holosteum SCOP. (Plantaginaceae) - in Turkey were investigated using karyological techniques. The seeds of taxa were collected from natural habitats. The chromosome numbers are determined for four taxa (P. coronopus subsp. coronopus, P. coronopus subsp. commutata, P. crassifolia and P. maritima) as 2n = 4x =20 and one taxon (P. holosteum) as 2n = 2x = 12. The chromosome numbers and karyotype analysis of the species are reported for the first time for Turkey.
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    Cytogenetic effects of 99technetium on meristematic cells of root tips of Vicia faba L. andstatistical comparison
    Özdemir, A; Bozdag, B; Sepet, H; Parlak, Y; Kocabas, O; Erees, FS; Özdemir, C
    In this study, cytogenetic effects of (99)technetium (Tc-99) on meristematic cells of root tips belonging to Vicia faba L. have been investigated. Seeds of the plant were prepared and kept in Tc-99 standard for different time periods: 1/12, 1/4, 1/2, 1, 2, 3, 4, 5, 6 and 12 h. Seeds treated with Tc-99 were sprouted and the root tips obtained were prepared for microscopic examination. Some abnormalities e.g. chromosome breaking, chromosome dispersion, bridge chromosomes, chromosome adherence and ring chromosomes were observed. Abnormalities seen for each treatment depended on the time period. The variety and number of abnormalities usually increased with increased treatment time. The results obtained were evaluated statistically.
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    Karyological studies on eight species of Onobrychis genus in Turkey
    Sepet, H; Emre, I; Kiran, Y; Kursat, M; Sahin, A
    This study used karyological techniques to determine the chromosome numbers and morphology of eight species of Onobrychis L. (O. caput-galli (L.) Lam, O. aequidentata (Sibth. & Sm.) d' Urv, O. fallax Freyn & Sint. var. fallax, O. lasiostachya Boiss, O. viciifolia Scop., O. oxyodonta Boiss. subsp. armena (Bois. & Huet) Aktoklu, O. hypargyrea Boiss. and O. cappadocica Boiss.). The results of this study determined the chromosome numbers of O. cappadocica as 2n = 16; O. viciifolia as 2n = 28 and the other species as 2n = 14. The karyotypes of species consisted of median-centromeric (m) or submedian-centromeric (sm) chromosomes. However, O. oxyodonta Boiss. subsp. armena (Bois. & Huet) Aktoklu was found to have only the median-centromeric (m) chromosomes. According to the results of the present study, of the eight Onobrychis taxa, only O. hypargyrea has a pair of satellite chromosomes (sat-chromosome). Furthermore, this study detected karyotype asymmetry.