Browsing by Author "Tileklioglu, B"

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Determination of Phytohormones Level in Some Dried and Fresh Macrofungi Taxa
(Ferdinand Berger Soehne, 2005) Türker, M; Demirel, K; Uzun, Y; Battal, P; Tileklioglu, B
In the present work the level of Indole-3-acetic acid (IAA), trans-Zeatin (t-Z) and Gibberellic acid's equivalents (GAs) were determined in dried and fresh specimen of 18 macrofungi taxa by High Performance Liquid Cromatograpy (HPLC). The phytohormones were extracted from fresh and dried samples of Cortinarius Fr. sp., Lentinus tigrinus (Bull.: Fr.) Fr., Coprinus atramentarius (Bull.: Fr.) Fr., Boletus impolitus Fr., Suillus granulatus (L.: Fr.) O. Kuntze, Leccinum scabrum (Bul.: Fr.) S. F Gray, Pleurotus ostreatus (Jacq.: Fr.) Kumm., Agaricus bernardii (Quel.) Sacc., Ptychoverpa bohemica (Krombholz) Boud., Agrocybe dura (Bolt.) Sing., Lycoperdon molle Pers.: Pers., Volvariella speciosa (Fr.: Fr.) Sing., Pleurotus eryngii (DC.: Fr.) Quel., Morchella esculenta Pers.: St. Amans, Coprinus comatus (Muell.: Fr.)Pers., Inocybe Fr. sp., Hebeloma longicaudum (Pers.: Fr.) Kumm. and Amanita gemmata (Fr.) Bertil. The highest GAs level in dry fungi was found in Ptychoverpa bohemica, 444.08 mu g/mg, whereas the lowest was found in Coprinus atramentarius, 22.13 mu g/mg. In fresh samples the highest and lowest GAs levels were found in Ptychoverpa bohemica, 148.65 mu g/mg and Coprinus atramentarius, 10.24 mu g/mg respectively. The highest t-Z and IAA levels in dried samples were determined in Agaricus bernardii, 92.18 mu g/mg and Agrocybe dura, 23.41 mu g/mg, whereas the lowest t-Z and IAA levels in dried samples were determined in Inocybe sp., 2.65 mu g/mg and Pleurotus ostreatus, 0.18 mu g/mg respectively. Among the fresh samples, the highest level of t-Z was found in Cortinarius sp., 4.58 mu g/mg and the lowest were detected in Morchella esculenta, 0.013 mu g/mg. The highest and lowest IAA levels in fresh samples were found in Agaricus bernardii, 1.36 mu g/mg and Agrocybe dura, 0.0 18 mu g/mg respectively.
The Effect of Cigarette Smoke on the Growth and Development of Wheat (Triticum Vulgare Vill) and Duckweed (Lemna Minor L)
(Marcel dekker inc, 1996) Tileklioglu, B; Battal, P; Isler, S
In this work, the effect of cigarette smoke on the growth and development of wheat (Triticum vulgare Vill.) and duckweed (Lemna minor L.) was investigated. As cigarette smoke application increased, the plant height, the root length, the leaf width and length, the stem height, the chlorophyll a and b content, the guard cell length of wheat decreased, but its dry weight percentage increased. As cigarette smoke application increased. the leaf number, the root length, the guard cell length and the chlorophyll a content of duckweed decreased, but its dry weight and chlorophyll b content increased.
Effects of Different Mineral Nutrients on Abscisic Acid in Maize (Zea Mays)
(Finnish Zoological Botanical Publishing Board, 2003) Battal, P; Turker, M; Tileklioglu, B
The effects of different concentrations of various macroelements on growth and endogenous ABA (absisic acid) levels in root, stem, leaf and flower tissue of maize (Zea mays) were studied. Plants were cultivated in sand and supplied twice a week with a nutrient solution containing optimum, excessive or deficient concentrations of nitro(Yen. phosphorus, potassium, calcium, magnesium, sulphur and iron. Plants were harvested at three different stages: vegetative (4-5 leaves), flowering, and fruiting. Fresh weight, leaf and stem size, leaf number and ABA concentrations differed remarkably between plants cultured in abnormal concentrations of macroelements compared to the controls. In general, deprivation of macroelements caused an increase in ABA levels. Deficiency of N, P, K, S and Fe in the nutrient solution resulted in marked increases in the levels of ABA extracted from root, leaf, stem and flower at the three developmental stages. Excessive concentrations of these macroelements resulted in a decrease in ABA levels in all parts of plants at all three stages as compared with their respective controls. ABA levels in roots, stems, and leaves were elevated from 3% to 159% in N, P, K, and S limited plants whereas the levels of ABA in these same organs were reduced from 1% to 98% in the presence of excessive levels of N, K, P and S.