Endophytic bacteria are an association between bacteria and plant tissue that could play a role as a biocontrol agent. Endophytic bacteria were isolated from several high root plants in Aceh, Indonesia. This study aimed to detect the chemical compounds of the potential endophytic bacteria as a biocontrol agent against Fusarium oxysporum f. sp. lycopersici (FOL). There were 198 endophytic bacterial isolates detected in roots of 9 higher plant. The hypersensitive reaction showed that 193 isolated endophytic bacteria were non-pathogenic. There were 13 isolated endophytic bacteria that worked to inhibit FOL between 50.0 and 89.2%; such endophytic bacteria were isolated from Solanum lycopersicum L., Psidium guajava L., Dendrocalamus asper (Schult with f.) Backer ex Heyne, Pinus merkusii L., Theobroma cacao L., and Albizia chinensis L. Molecular identification using 16S rRNA gene sequence confirmed that the endophytic bacteria were derived from species Pseudomonas aeruginosa, P. mosselii, Arthrobacter sp., Bacillus cereus, B. thuringiensis, and Serratia marcescens. P. aeruginosa that showed the highest inhibition was analyzed using GC-MS analysis. The analysis identified that antibiotics as Pyrrolo [1,2-a]pyrazine-1,4-dione, hexahydro-3-(2-methylpropyl)- was produced by P. aeruginosa succeeded in suppressing FOL. The study recommends the species P. aeruginosa, as effective endophytic bacteria for the control of FOL pathogen.

中文翻译：

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从印度尼西亚亚齐的高等植物中分离出来的内生细菌及其对尖镰孢的化学活性。sp。lycopersici

内生细菌是细菌和植物组织之间的关联，可以起生物防治剂的作用。从印度尼西亚亚齐的几种高根植物中分离出内生细菌。这项研究旨在检测潜在的内生细菌的化学成分作为抗尖孢镰刀菌f的生物防治剂。sp。lycopersici（FOL）。在9个高等植物的根中检测到198种内生细菌分离株。超敏反应表明193种分离的内生细菌是非致病性的。有13种分离出的内生细菌可有效抑制FOL介于50.0％至89.2％之间。这些内生细菌是从茄属茄属，番石榴（Psidium guajava L.），石D（Dendrocalamus asper）（舒尔特（Schult with f。）），Backer ex Heyne，Pinus merkusii L.，Theobroma cacao L.和Albizia chinensis L.中分离得到的。使用16S rRNA基因序列的分子鉴定证实内生细菌来源于铜绿假单胞菌，mosselii杆菌，节杆菌属，蜡状芽孢杆菌，苏云金芽孢杆菌和粘质沙雷氏菌。使用GC-MS分析法分析显示出最高抑制作用的铜绿假单胞菌。分析确定铜绿假单胞菌产生的抗生素为吡咯并[1,2-a]吡嗪-1,4-二酮，六氢-3-（2-甲基丙基）-成功抑制了FOL。该研究推荐铜绿假单胞菌作为控制FOL病原体的有效内生细菌。使用GC-MS分析法分析显示出最高抑制作用的铜绿假单胞菌。分析确定铜绿假单胞菌产生的抗生素为吡咯并[1,2-a]吡嗪-1,4-二酮，六氢-3-（2-甲基丙基）-成功抑制了FOL。该研究推荐铜绿假单胞菌作为控制FOL病原体的有效内生细菌。使用GC-MS分析法分析显示出最高抑制作用的铜绿假单胞菌。分析确定铜绿假单胞菌产生的抗生素为吡咯并[1,2-a]吡嗪-1,4-二酮，六氢-3-（2-甲基丙基）-成功抑制了FOL。该研究推荐铜绿假单胞菌作为控制FOL病原体的有效内生细菌。