Aging effect to accumulation of camalexin in Arabidopsis thaliana after elicitation by silver nitrate

Desyi Arisman Nasaruddin, (2007) Aging effect to accumulation of camalexin in Arabidopsis thaliana after elicitation by silver nitrate. Universiti Malaysia Sabah. (Unpublished)

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Abstract

The effect of plant age to accumulation of camalexin after elicited by silver nitrate in Arabidopsis thaliana was studied. Four, six, eight and 11-week plants were elicited by silver nitrate as an abiotic elicitor to induce the production of camalexin. Camalexin is a secondary metabolites compound that plays a role in Arabidopsis defence system. The camalexin was detected on TLC plate with a bright bluish purple fluorescence and has a maximum absorbance at 318 rm in spectrophotometer. The camalexin accumulation was significantly increased from week four to week eight. However, the camalexin concentration was decreased in week eleven. There is a strong relationship between plant age and accumulation of camalexin (R2= 0.93632, p<0.05). Result from this study indicated that camalexin concentration decreased with aging when some healthy leaves became yellow indicating the senescence started. The data also suggested the accumulation of camalexin appeared to be dependent on plant age itself

Item Type: Academic Exercise
Uncontrolled Keywords: plant age, camalexin, silver nitrate, Arabidopsis thaliana, spectrophotometer
Subjects: S Agriculture > SB Plant culture
Divisions: SCHOOL > School of Science and Technology
Depositing User: MDM SITI AZIZAH IDRIS
Date Deposited: 29 Jan 2014 03:19
Last Modified: 11 Oct 2017 04:48
URI: http://eprints.ums.edu.my/id/eprint/8106

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