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Effects of Exogenous Arachidonic Acid on Endogenous Fatty Acid Profile
and Panicle Formation on Rice (Oryza Sativa L.) Grown Under Saline Soil
Puteri Afiqah Binti Abdul Wahab
Supervisor: Prof. Dr. Aziz bin Ahmad
Bachelor of Science (Biological Sciences)
School of Fundamental Science
Rice is a staple food and sensitive to salinity. Effect of salinity will first be encountered
by plasma membrane in root cell and free polyunsaturated fatty acid (PUFAs) will be
released into the cell. The free PUFAs were believed to regulate spikelet development
in rice plant. In this study, we treated the plants with exogenous arachidonic acid.
Samples were collected for fatty acid methyl ester (FAME) production. FAME contents
were analysed to determine the effects of arachidonic acid on the endogenous fatty
acid profile. The changes in morphological traits of the plants were observed to
determine the panicle and spikelet development of the plants. The treatment applied
to the plants resulted on appearance of various type of endogenous fatty acid and
brought significant effects on morphology traits of the plants. The finding suggested
that the presence of fatty acid might play a role in plant defence mechanism and plant
development.
318 | U M T U N D E R G R A D U A T E R E S E A R C H D A Y 2018