38 research outputs found
SCIENTIFIC RESEARCH AND ESSAYS
Morphological and palynological features were examined in the closely related Turkish endemic taxa Asperula serotina and A. purpurea subsp. apiculata. Their morphological features showed very minor difference such as internodes length and the vein thickness of leaf, however, the seed and pollen characteristics clearly appear to have taxonomic value. The clavate-reticulate seed surface suture of A. serotina clearly differs from that lineate-sulcate of A. purpurea subsp. apiculata. Similarly, the pollen perforations and number of spines differ in each taxon. Moreover, the two taxa are geographically isolated from each other. Ecological features are also briefly discussed. The seed and pollen micromorphological properties could be used for intra/interspecific classification of Asperula which is taxonomically critical
ANNALES BOTANICI FENNICI
Aspen, la pseudochlorantha Ehrend. and Asperula antalyensis Ehrend. from Turkey were described in 1958. General characteristics, seed structure and micromorphology, pollen measurements and other pollen characteristics were examined to determine the taxonomic status of these taxa. Morphologically, the two taxa cannot be easily distinguished, and the seeds and pollen grains are similar. The chromosome number is 2n = 22 for both taxa. Based on morphological, palynological and cytological similarities, and the fact that both taxa are found in the same habitats, we propose that A. antalyensis should be recognized as A. pseudochlorantha Ehrend. var. antalyensis (Ehrend.) Minareci & K. Yildiz, comb. et stat. nov
JOURNAL OF ANIMAL AND PLANT SCIENCES
Consolida samia P.H.Davis (Ranunculaceae) is one of the Top 50 Plants of IUCN Species Survival Commission. C. samia, as a new record for the Flora of Turkey is described and illustrated from West Anatolia in this study. The specimens were collected from a gravel-like substrate with the largest pebbles in the Balikesir border of Manisa. The description of the species has also been expanded, following collection of specific plant materials. In this study, the detailed morphological characteristics and palynological properties were determined and compared with the closely related taxon C. hellespontica (Boiss.) Chater. Also, line drawing, photographs and a distribution map of C. samia species of Turkey were presented. Our studies led us to recommend it as CR Blab (iii,v)+2ab(iii,v), according to the 2001 IUCN categories
NORDIC JOURNAL OF BOTANY
Rosularia globulariifolia (Fenzl) A. Berger and R. pallidiflora (Holmboe) Meikle were originally described as species in Umbilicus DC. in 1842 and 1914, respectively. In the present study, morphological and palynological features were examined in detail to determine the status of these taxa. The general characteristics, seed structure and micromorphology, pollen measurements and pollen characteristics were established. Morphologically, the two taxa cannot easily be distinguished. Pollen grains of both species are tricolporate, subspheroidal and eutectate, ornamentation is psilate and exine structures are similar. Based on morphological and palynological similarities, and the fact that both taxa are found in the same habitats, we propose that R. pallidiflora should be reduced to the rank of variety as Rosularia globulariifolia (Fenzl) A. Berger var. pallidiflora (Meikle) Minareci & K. Yildiz comb. et stat. nov
ARCHIVES OF BIOLOGICAL SCIENCES
In this study, the proximate chemical composition, total flavonoid and a-tocopherol amounts and antioxidant activities of five endemic Asperula taxa (Rubiaceae) (A. brevifolia, A. pseudochlorantha var. antalyensis, A. pseudochlorantha var. pseudochlorantha, A. purpurea subsp. apiculata and A. serotina) were determined. Antioxidant properties of methanol extracts were studied by the 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging method. Among the all Asperula extracts A. brevifolia showed the most potent radical scavenging activities
The study of surface water quality in Buyuk Menderes River (Turkey): Determination of anionic detergent, phosphate, boron and some heavy metal contents
The Buyuk Menderes basin is very wide and the people living here deal with farming, which increases the importance of the river to the region. The pollution of the river increases because the industry, urbanization and agricultural activities are very intense in the river basin. For this reason, the aim of this study is to map the extent of pollution of Buyuk Menderes River, to detect sources causing pollution in the river and also to suggest solutions for taking necessary precautions. Anionic detergent, phosphate, boron and heavy metal concentrations were determined in water samples taken from Buyuk Menderes River in this study. Mean concentrations of anionic detergent, phosphate, boron, copper, chrome, nickel and lead were found 0.2345 mg l-1, 0.0181 mg l-1, 0.8352 mg l-1, 0.0035 mg l-1, 0.0045 mg l-1, 0.0247 mg l-1, 0.0002 mg l-1, respectively. © 2018, ALÖKI Kft., Budapest, Hungary
CYTOLOGIA
Karyology of the 6 Silene species from Turkey was investigated. Diploid chromosome numbers and the basic chromosome number of the studied taxa were obtained as 2n=24 and x=12 respectively. The karyotype analysis of S. viscosa, S. eremitica, S. skorpilii and S. confertiftora were carried out for the first time. Also the chromosome numbers of S. eremitica and S. confertiflora were determined for the first time. The largest chromosomes were observed in S. otites and the smallest ones were observed in S. viscosa. S. otites shows the highest A(1) index. S. skorpilii represents the highest interchromosomal asymmetry coefficient (A(2)). The karyologic results oh the study and the analysis of chromosomal morphology of each taxon were shown as tables
INDIAN JOURNAL OF GENETICS AND PLANT BREEDING
Karyotype studies were performed in five taxas of Asperula viz., Asperula brevifolia, A. pseudochlorantha var. pseudochlorantha, A. pseudochlorantha var. antalyensis, A. serotina and A. purpurea subsp. apiculata from the section Thlipthisa, and their diploid (2n), and the basic (x) chromosome numbers were determined as 2n=22 and x=11, respectively. Chromosome length varied from 0.80 gm (A. serotina) to 2.40 mu m (A. brevifolia). Chromosomes are principally metacentric except for A serotina, which has submetacentric chromosomes. A. serotina showed the highest intrachromosomal assymetry coefficient (A(1)) index and A. pseudochlorantha var. antalyensis represented the highest interchromosomal asymmetry coefficient (A(2)). The chromosome numbers of A. brevifolia, A. serotina and A. purpurea subsp. apiculata were reported for the first time
AFRICAN JOURNAL OF PHARMACY AND PHARMACOLOGY
In this study, proximate composition, antimicrobial and antioxidant activities of six Smyrnium taxa, including, Smyrnium olusatrum, Smyrnium perfoliatum, Smyrnium rotundifolium, Smyrnium cordifolium, Smyrnium connatum and Smyrnium creticum (Umbelliferae) were determined. Antioxidant properties of methanol extracts were studied by 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging method. Among all the Smyrnium taxa, S. olusatrum showed the most potent radical scavenging activities. Antimicrobial activities of these taxa were studied using agar well diffusion method and S. perfoliatum showed broad-spectrum antibacterial activity with inhibition zones ranging from 13 to 25 mm