FARKLI KURŞUN KONSANTRASYONLARININ Elodea canadensis Michx. ‘ İN KLOROFİL A VE KLOROFİL B MİKTARLARI ÜZERİNE ETKİLERİ

Year 2005, Volume: 7 Issue: 2, 12 - 18, 01.12.2005

Mustafa Temel

Abstract

Araştırmada farklı kurşun konsantrasyonlarında klorofil a ve klorofil b miktarlarının değişimlerini tespit etmek amaçlanmıştır. Elodea canadensis gövde parçaları 0.1, 0.5, 1, 5, 10, 20, 50, ve 100 mg L-1kurşun konsantrasyonlarına 24, 48, 72, 120, 168 ve 216 saatlik peryotlarda tutulmuşlardır. Kontrol bitkilerinde ve 5,10,20, ve 100 mg L-1 kurşun konsantrasyonlarında klorofil a ve b miktarları 30-120 mg L1 , 0.1 ,0.5, ve 1 mg L-1 kurşun konsantrasyonlarında ise 20-70 mg L-1 ölçülmüştür. 168. saatten itibaren 50 ve 100 mgL-1 kurşun konsantrasyonlarına maruz bırakılan örneklerin yapraklarında senesens ile ilgili morfoılojik belirtiler ortaya çıkmıştır

Keywords

ANAHTAR KELİMELER: Elodea canadensis, kurşun konsantrasyonları, klorofil a, klorofil b

The Effects of Various Concentrations of Lead to Chlorophyll A and Chlorophyll B of elodea canadensis michx

Abstract

This study aims to determine the changes in quantities of chlorophyll a and chlorophyll b in various lead concentrations. The main parts of Elodea canadensis have been subjected to lead concentrations, such as 0.1, 0.5, 1, 5, 10, 20, 50 and 100 mg L-1, with periods of 24, 48, 72, 120, 168 and 216 hours. Chlorophyll a and b quantities were measured in control plants and lead concentrations of 5, 10, 20 and 100 mg L-1 as 30 – 120 mg L-1 and in lead concentrations of 0.1, 0.5 and 1 mg L-1 as 20-70 mg L-1. Some morphological indications related with senescence were observed on leaves of the samples that were exposed to 50 and 100 mg L-1 lead concentrations beginning from the 168th hour

Keywords

Elodea canadensis, lead concentrations, chlorophyll a , chlorophyll b

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