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Association of Polychaete towards Enzymatic Activities of Mangrove Plants
Nor Shazlina binti Zakariah
Supervisor: Dr. Norhayati bt Yusuf
Bachelor of Science (Biological Sciences)
School Of Fundamental Science
Mangrove is one of the ecosystem that contribute towards ecological functions. In
Malaysia, there are varieties of mangrove species that are difference in their
characteristic. However, the abiotic and biotic in Pantai Morib cause the changes of
enzymatic activities in the mangrove plants. Hence, the study was conducted to
compare the catalase (CAT), ascorbate peroxidase (APX) and guaiacol peroxidase
(gPOD) specific activities in leaves and roots of Rhizophora sp., Avicennia sp., and
Sonneratia sp. Based on the results, there was no significant difference (p>0.05) in
activities of enzymatic antioxidants among mangrove species. CAT (2.88 ± 0.32, 3.51
± 0.41) and gPOD (42.36 ± 22.87, 132.67 ± 28.71) seems to prefer Avicennia sp. in
both parts respectively since its activity is higher in that species, whereas Rhizophora
sp. prefer APX in leaves (24.86 ± 3.85) and gPOD in roots (37.72 ± 36.89) to scavenge
H2O2. Study on the association of enzymatic responses of mangrove species with effect
of heavy metal pollution since there are many industrial activities develop nowadays.
330 | 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