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Constitutive, institutive and up-regulation of carotenogenesis regulatory mechanism via in vitro culture model system and elicitors

Othman, Rashidi and Mohd Hassan, Norazian and Mohd Zaifuddin, Fatimah Azzahra (2015) Constitutive, institutive and up-regulation of carotenogenesis regulatory mechanism via in vitro culture model system and elicitors. Malaysian Journal of Analytical Sciences (MJAS), 19 (2). pp. 437-444. ISSN 1394-2506

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Abstract

Phytohormone abscisic acid (ABA) plays a regulatory role in many physiological processes in plants and is regulated and controlled by specific key factors or genes. Different environmental stress conditions such as water, drought, cold, light, and temperature result in increased amounts of ABA. The action of ABA involves modification of gene expression and analysis of in vitro callus model system cultures revealed several potential of constitutive, institutive and up-regulation acting regulatory mechanisms. Therefore, this study was aimed at establishing in vitro cultures as potential research tools to study the regulatory mechanisms of the carotenoid biosynthesis in selected plant species through a controlled environment. The presence and absence of zeaxanthin and neoxanthin in callus cultures and intact plants could be explained by changes in gene expression in response to stress. Abiotic stress can alter gene expression and trigger cellular metabolism in plants. This study suggested that the key factors which involved in regulatory mechanisms of individual carotenoid biosynthesis in a particular biology system of plants can be either be silenced or activated. Therefore, based on the results in this study environmental stress is made possible for enhancement or enrichment of certain carotenoid of interest in food crops without altering the genes.

Item Type: Article (Journal)
Additional Information: 3842/43475
Uncontrolled Keywords: carotenogenesis, elicitors, regulatory mechanisms, constitutive, institutive, up-regulation
Subjects: S Agriculture > SB Plant culture
T Technology > TP Chemical technology > TP248.13 Biotechnology
T Technology > TP Chemical technology > TP934 Paints, pigments, varnishes, etc
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Architecture and Environmental Design > Department of Landscape Architecture
Depositing User: Dr rashidi othman
Date Deposited: 22 Jun 2015 09:07
Last Modified: 03 Nov 2017 15:25
URI: http://irep.iium.edu.my/id/eprint/43475

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