POTENSI BAKTERI KITINOLITIK DALAM PENGENDALIAN Aspergillus niger PENYEBAB PENYAKIT BUSUK PANGKAL AKAR PADA TANAMAN KACANG TANAH
Abstract: A study of
chitinolytic bacteria ability to control Aspergillus niger, a causal agent of
basal root rot of peanut seedlings
was conducted in
Pest and Disease
Laboratory, Medan Johor
and Laboratory of
Microbiology, Department of Biology, Faculty of Mathematics and Natural
Sciences, University of Sumatera Utara, Medan.
The purpose of
study is to
evaluate the ability
of Bacillus sp.
BK13, Enterobacter sp.
BK15, Bacillus sp. BK17, Enterobacter cloacae LK08, Bacillus
sp. KR05, and Enterobacter sp. PB17 to inhibit the growth of A. niger on the
peanut seedling. Antagonistic test
showed that the most effective bacteria in inhibiting the growth of A. niger
was BK15 isolate with inhibition zone of 2,88 cm and BK13 isolate with inhibition
zone of 2,69 cm,
whereas the least
effective bacteria was
BK17, with inhibition
zone of 2,30
cm. Chitinolytic bacterial isolates
used to cover
peanut seed through
soaking enabled to
reduce seed basal
root rot. BK15 isolate
showed potential to
reduce the basal
root rot by
58,82% while the
lowest inhibition was
BK13 by 47,06%.
Keywords: Aspergillus niger,
Bacillus sp., chitinolytic bacteria, Enterobacter sp., peanut
Penulis: Arifda Ayu, Dwi
Suryanto dan Isnaini Nurwahyuni
Kode Jurnal: jpbiologidd120023
