Adaptation and ecosystem resilience of blue-green algae towards carotenogenesis regulatory mechanism

Othman, Rashidi and Abu Bakar, Ainaa Eliah and Mahmad, Noraini and Ahmad Fadzillah, Nurrulhidayah (2019) Adaptation and ecosystem resilience of blue-green algae towards carotenogenesis regulatory mechanism. In: 8th Malaysian international seminar on Antartica: polar regions in the global climate system, 18th-20th June 2019, Serdang, Selangor. (Unpublished)

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Abstract

Blue green algae (cyanobacteria) which known for its vibrant bluish green basically contains, phycocyanin, phycoerythrin and a number of yellow pigments, mainly carotenoids. The same species of blue green algae may vary in colour depending on the surrounding condition. The main issue that researcher want to address through this research is unclear mechanism regarding the pigmentation of blue-green algae towards its defense mechanism in certain degree of stress condition. In this research carotenoid biogenesis is investigated in blue green algae cell culture as a potential model system. The value of this experimental system for investigating variables controlling carotenoid accumulation is then tested by assessing the effects of environmental variables, such as drought stress, light intensity and nutrient strength on carotenoid accumulation. Our findings revealed that blue green algae pigmentation depending upon the spectral composition of the light. The lower the light intensity, the more accessory pigments effective in photosynthesis will be formed to catch a high percentage of the light. However, it was believed that it is beyond light intensity. It could be more key factors that can trigger blue green algae to change its colour accordingly to particular environment. Therefore, the necessity of this research is to develop a better understanding regarding blue-green algae (cyanobacteria) typologies and defensive behavior in different region. Anticipated benefits of the research may have potential in contributing to the defense/protective mechanism as well as ecological indicators in various fields in the future.

Item Type:	Conference or Workshop Item (Invited Papers)
Additional Information:	3842/72932
Uncontrolled Keywords:	carotenoid; environmental stress; cyanobacteria; chromaticity
Subjects:	G Geography. Anthropology. Recreation > GE Environmental Sciences Q Science > QD Chemistry 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):	International Institute for Halal Research and Training (INHART) Kulliyyah of Architecture and Environmental Design Kulliyyah of Architecture and Environmental Design > Department of Landscape Architecture
Depositing User:	Dr rashidi othman
Date Deposited:	02 Jul 2019 14:54
Last Modified:	11 Aug 2020 11:37
URI:	http://irep.iium.edu.my/id/eprint/72932

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