Malaysian Applied Biology Journal

  • Increase font size
  • Default font size
  • Decrease font size

46_04_24

E-mail Print PDF

Malays. Appl. Biol. (2017) 46(4): 199–205

EARLY OXIDATIVE STRESS RESPONSES IN COCONUT

(Cocos nucifera) STEM OF MATAG AND PANDAN

CULTIVARS DUE TO RED PALM WEEVIL

(Rhynchophorus ferrugineus OLIVIER) INFESTATION

 

NORHAYATI YUSUF1*, NUR NASSIHAH MOHD NASSIR1, WAHIZATUL AFZAN AZMI2

and HAZLINA AHAMED ZAKERI1

 

1School of Fundamental Science, Universiti Malaysia Terengganu,

21030 Kuala Nerus, Terengganu, Malaysia

2School of Marine and Environmental Sciences, Universiti Malaysia Terengganu,

21030 Kuala Nerus, Terengganu, Malaysia


*Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it

 

Accepted 22 November 2017, Published online 31 December 2017

 

ABSTRACT

Red palm weevil (Rhynchophorus ferrugineus Olivier, RPW) is one of the widely distributed harmful pests that attacks coconut palms in Malaysia. The infestations spread rapidly after the first case reported and cause severe damages to thousands of coconut trees. Thus, the problem affects the coconut production. This study was conducted to evaluate the early oxidative stress responses in coconut-RPW infestation. Fourteen-month-old seedlings of MATAG and PANDAN cultivars were infested with RPW for 28 days. The lipid peroxidation (malondialdehyde equivalents, MDA), hydrogen peroxide (H2O2) concentration and percentage of ion leakage in lower and upper stems of planted coconut cultivars were measured at 0, 7, 14, 21 and 28 days after infestation. Results showed that the MDA and H2O2 concentration were decreased at both lower and upper stem of PANDAN, but decreased at lower stem for MATAG. In contrast, at later stages of experiment, infested upper MATAG stem demonstrated significantly higher (p < 0.05) amount of MDA together with the percentage of ion leakage at lower and upper infested MATAG stems compared to the control. On the other hand, ion leakage at lower and upper parts of PANDAN stems did not significantly differ between controls and infested plants throughout the experiment. Red weevil palm infestation has changed the MDA level, H2O2 production and percentage of ion leakage in both MATAG and PANDAN cultivars. This information may be used as biomarkers for identification infested of MATAG and PANDAN cultivars in the future.

Key words: Red palm weevil, coconut-RPW infestation, lipid peroxidation, hydrogen peroxide, ion leakage

 

Latest MABJ issue

Vol 47(2) May 2018

Table of content

Latest news!

According to MyCite 2014 report, MABJ ranked 95 out of 142 Malaysian journals in terms of yearly impact factor.