Farklı Azot Kaynağının (NO3-N ve NH4-N) Zararlı Denizel Diyatomu Thalassiosira allenii Takano (Bacillariophyceae) Büyümesi Üzerine Etkisi
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Date
2013
Journal Title
Journal ISSN
Volume Title
Publisher
Namık Kemal Üniversitesi, Ziraat Fakültesi
Access Rights
info:eu-repo/semantics/openAccess
Abstract
Thalassiosira) allenii (Takano) turunun iki azot formundan nasıl etkilendiğini daha iyi anlamak icin buyume hızları uzerinde NO3-N ve NH4-N 'nun 6 farklı konsantrasyonun etkileri araştırılmıştır. İzmir KorfeziMKuzey Ege-Turkiye' den izole edilen)T.allenii turu, f/2 zenginleştirme ortamında, surekliMaydınlık periyotta ve kesikli kultur sisteminde inkube edildi. Turun buyumesi eksponensiyel buyume fazı takip edilerek Chl a (?gl-1) olarak olculdu, elde edilen verilerin istatistiksel analizi en kucuk kareler metoduyla yapıldı. Her bir nutrient icin hesaplanan Ks ve ?max değerleri sırasıyla: NO3 icin Ks?0 ?g at-NO3-N l-1 ve ?max= 0.93 gun-1, NH4 icin Ks= 0.05 ?g at-N l-1 ve ?max=1.034 gun-1 olarak bulundu. T.allenii turu her iki azot kaynağında da buyuyebilme yeteneğine sahiptir ve boylece rekabet şansını arttırabilir. Bu sonuclar T.allenii turunun, aşırı alg coğalmalarında daha fazla rol alabileceğini gostermektedir.
In order to better understand the effect of two nitrogen form on T.)allenii, the effects of 6 different concentrations of NO3-N and NH4-N were investigated. T.) allenii) was isolated from İzmir Bay-Northern Aegean Sea-Turkey and incubated in a f/2 enrichment medium under constant light in a batch culture system. The growth rate of the species was measured as Chl ?(mg/l) by monitoring the exponential growth phase. The statistical analysis of the obtained data was performed by utilizing the method of least squares. Half saturation constant (Ks) and maximum spesific growth rate (?max) values estimated for each nitrogen form were obtained as follows: ?0?mol NO3-N l-1 and 0.93 day-1 for nitrate, 0.05 ?mol NH4-N l-1 and 1.034 day-1 for ammonium. T.allenii species has ability to use both of the nitrogen and therefore can increase the chances of the competition. This results shows that T.allenii species can be a greater role on Algal Blooms.
In order to better understand the effect of two nitrogen form on T.)allenii, the effects of 6 different concentrations of NO3-N and NH4-N were investigated. T.) allenii) was isolated from İzmir Bay-Northern Aegean Sea-Turkey and incubated in a f/2 enrichment medium under constant light in a batch culture system. The growth rate of the species was measured as Chl ?(mg/l) by monitoring the exponential growth phase. The statistical analysis of the obtained data was performed by utilizing the method of least squares. Half saturation constant (Ks) and maximum spesific growth rate (?max) values estimated for each nitrogen form were obtained as follows: ?0?mol NO3-N l-1 and 0.93 day-1 for nitrate, 0.05 ?mol NH4-N l-1 and 1.034 day-1 for ammonium. T.allenii species has ability to use both of the nitrogen and therefore can increase the chances of the competition. This results shows that T.allenii species can be a greater role on Algal Blooms.
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Keywords
yarı-doygunluk katsayısı, nitrat, Denizel diyatom, büyüme hızı, amonyum, nitrate, Marine diatom, half saturation constant, growth rate, ammonium
Journal or Series
Tekirdağ Ziraat Fakültesi Dergisi
WoS Q Value
Scopus Q Value
Volume
10
Issue
3
