| dc.description.abstract | Xanthomonas oryzae pv. oryzae (Xoo) is one of the important diseases in rice. The key to
Xoo's primary control is using disease-free or treated seeds and crop rotation. However,
the relevance of using certified seeds or seedlings will be reduced if there is a
combination of main pest attacks that help the entry of these pathogens into the plant,
one example is the golden snail from the mollusca group. Based on several research
sources, the mollusca group in marine areas is an untapped source and can be used to
find new ingredients as antimicrobials. Starting from this, it can be seen that one of the
important pests in rice, namely golden snails (Pomacea canaliculata), is part of the
mollusca phylum which can actually be used as an antimicrobial. Given that P.
canaliculata is one of the important pests in rice which is very destructive, this can be one
of the advantages, namely that the pest will not return to the pest status but will also
hold the status as an antimicrobial raw material used in rice plants as well. This is an
innovation in itself in the field of controlling bacterial leaf blight because in addition to
controlling the disease, the important pests of golden snails can be controlled. Chitosan
and Antimicrobial Peptides (AMPs) were obtained by extracting golden snails using
different techniques. A total of eight treatments were used in this study, namely
negative control (KON), positive control (KKT), Chitosan (KT) with 3 concentrations,
namely 0.2%, 0.4%, 0.6 and Antimicrobial Peptides (AA) with 3 concentrations. 1%, 3%,
5%. The method used is the paper disc diffusion method to determine the inhibitory
power of Chitosan and Antimicrobial Peptides (AMPs) against pathogenic bacteria.
Treatments that have an effect will be further tested using the Duncan test at the level of
α = 0.05. Each chitosan and AMPs treatment at each concentration showed a different
level of inhibition. The highest inhibition was seen in the AMPs treatment with a
concentration of 1%. It was noted that the increase in concentration was inversely related
to the inhibitory power in each treatment. The conclusion from this study is that
chitosan and AMPs treatment has excellent potential as environmentally friendly
antibacterials with abundant raw materials as indicated by the best treatment, namely
AMPs 1%. The increasing number of new research related to environmentally friendly
antibacterials will be a turning point in the world of antimicrobial development | en_US |
