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Title : Bacillus is one of the most potential genus as a biocontrol agent of golden cyst nematode(Globodera rostochiensis)
Author :

Prof. Ir. Donny Widianto, Ph.D. (1) AJENG DARA PRAMITA (2) IRIANTI KURNIASARI (3) Nur Akbar Arofatullah, S.P., M.Biotech., Ph.D. (4) Prof. Ir. Irfan Dwidya Prijambada, M.Eng., Ph.D. (5) Ir. Jaka Widada, M.P., Ph.D. (6) Prof. Dr. Ir. Siwi Indarti, M.P. (7)
Date : 21 2021
Keyword : Biological control,Bacillus,golden cyst nematode,parasitic ability Biological control,Bacillus,golden cyst nematode,parasitic ability
Abstract : The nematicidal ability of forty-five bacterial isolates from potato cultivation lands in Indonesia were examined. The isolates showing >=50% cyst and egg mortality were identified based on morphological and molecular approach. DK-Sa-A1, SRJ-Sa-A1, KB-Se-A2, and SRJ-Se-A1 showed cyst mortality of 80, 63.3, 53.3, and 50%, respectively. The ovicidal potential of SRJ-Se-A1, DK-Sa-A1, SRJ-Sa-A1, KB-Se-A2,KB-Sa-B3, KT-Se-A2, and PB-Sa-A2 were 98.7, 96.4, 95.2, 94.1, 76.4, 70.3, and 54.4% egg mortality, respectively. Five isolates representing each sampling location, DK-Sa-A1, KB-Se-A2, KT-Se-A2, PB-Sa-A2, and SRJ-Sa-A1 were selected for further analysis. These isolates showed significantly different protease and chitinase specific activity compared with the control and were identified as Bacillus flexus DK-Sa-A1, B. pumilus KB-Se-A2, B. cereus KT-Se-A2, B. megaterium PB-Sa-A2, and B. subtilis SRJ-Sa-A1. All identified isolates were not plant pathogenic and did not trigger a hypersensitive response. Therefore, they could be potential biocontrol agents for golden cyst nematode.
Group of Knowledge : Bioteknologi Pertanian dan Perkebunan
Original Language : English
Level : Internasional
Status :
Published
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