Preliminary approch for the determination of fish exuded kairomone using fourier transform infrared spectroscopy

Download

index.pdf

Date

2005

Author

Kepenek, Ayşe Özge

Metadata

Show full item record

Item Usage Stats

186
views

51
downloads

Chemical communication in aquatic organisms has been topic of a large number of studies focusing interactions between organisms via info chemicals. Diel Vertical Migration (DVM) is commonly observed among zooplankton and consists of a single daily ascent with minimum depth reached between sunset and sunrise and a descent with maximum depth attained during the day. DVM was absent or reduced when predators were absent and well developed in their presence. Species of the Daphnia are one of the well investigated group in freshwater environments. Variation in DVM of Daphnia in response to fish kairomone is one of the best studied behavioral strategies. Kairomone, as a term, is described interspecific chemical messengers, the adaptive benefit of which falls on the recipient rather than the emitter. As a result, nature and origin of kairomone is still unclear and needs to be investigated. It was decided that FT-IR technique would be favorable tool for this aim. In this frame, it was conceived that the occurrence of migration adaptation relevant to the seasonal changes in the presence of fish kairomone could be proved and characterized by FT-IR technique. Results of the present study indicate that non-aromatic, secondary amine compound has significant contribution to fish cue. Since other sources other than fish can contribute the natural amine compounds level in fresh water environment, origin and concentration of amines are needed further investigation to determine ecological function of amine.

Subject Keywords

General Biology.

URI

http://etd.lib.metu.edu.tr/upload/12606942/index.pdf
https://hdl.handle.net/11511/15694

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

In vitro induction of growth and development of common juniper(Juniperus communis L.) from shoot and bud explants Koçer, Zeynep Ahsen; Kaya, Zeki; Department of Biotechnology (2005) The objective of the study was to investigate the optimum conditions for in vitro regeneration of common juniper (Juniperus communis L.) by using indirect organogenesis approach. Throughout the study; callus induction, organogenesis, improved organogenesis and root induction experiments were performed sequentially. It was found that explant position, genotype, gender, treatments and sampling time had significant effects on callus induction rate in common juniper. The results of treatments indicated that IBA...
Biochemical monitoring of toxic and carcinogenic organic pollutants along the İzmir Bay after the great canal project and possible health effects Boyuneğmez, Tuğba; Arınç, Emel; Department of Biochemistry (2004) The induction of hepatic cytochrome P4501A1 and its monooxygenase activity 7-ethoxyresorufin O- deethylase, (EROD) in fish by PAHs, PCBs and dioxins has been suggested as an early warning system أmost sensitive biochemical responseؤ for assessing environmental contamination conditions. In this study, the degree of induction of cytochrome P4501A1 protein as determined immunochemically and CYP1A1 associated EROD activity in fish were utilized as biomarkers of exposure to PAHs, PCBs and related organic polluta...
Determination of antimicrobial spectrum of K9 type yeast killer toxin and its cell killing activity Yener, Burcu; İzgü, Kadri Fatih; Department of Biology (2006) Some yeast strains secrete extracellular polypeptide toxins known to have potential growth inhibitory activity on other sensitive yeast genera but are immune to their own toxins. These yeast strains are termed as killer yeasts and their toxins are designated as killer proteins or killer toxins. Killer phenotypes are classified into 11 typical types (K1-K11). The toxic actions of yeast killer proteins on sensitive cells show differences and one of the most important toxic actions involves the selective funct...
Hydrogen production by microorganisms in solar bioreactor Uyar, Başar; Eroğlu, İnci; Department of Biotechnology (2008) The main objective of this study is exploring the parameters affecting photobiological hydrogen production and developing anaerobic photobioreactor for efficient photofermentative hydrogen production from organic acids in outdoor conditions. Rhodobacter capsulatus and Rhodobacter sphaeroides strains were used as microorganisms. EU project “Hyvolution” targets to combine thermophilic fermentation with photofermentation for the conversion of biomass to hydrogen. In this study, the effluent obtained by dark fe...
An alternative supporting electrolyte for enzyme immobilization in conducting polymers Kiralp, Senem; Balik, Balam; KARATAŞ, SEVİM; Toppare, Levent Kamil; Gungorb, Atilla (Elsevier BV, 2008-03-01) In this study an alternative supporting electrolyte was used in enzyme immobilization. Invertase was studied to observe the effect of the supporting electrolyte. Sulfonated poly(arylene ether sulfone) was used as the supporting electrolyte during the electrolysis of pyrrole. The results show that the polymeric supporting electrolyte can be used instead of sodium dodecyl sulfate.

Citation Formats

A. Ö. Kepenek, “Preliminary approch for the determination of fish exuded kairomone using fourier transform infrared spectroscopy,” M.S. - Master of Science, Middle East Technical University, 2005.