Hong Chi Eun, Jeong Haeyoung, Jo Sung Hee, Jeong Jae Cheol, Kwon Suk Yoon, An Donghwan, Park Jeong Mee
Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea.
Department of Biosystems and Bioengineering, University of Science and Technology, Daejeon 34113, Republic of Korea.
J Microbiol Biotechnol. 2016 Mar;26(3):488-92. doi: 10.4014/jmb.1511.11039.
Rhodococcus species have become increasingly important owing to their ability to degrade a wide range of toxic chemicals and produce bioactive compounds. Here, we report isolation of the Rhodococcus sp. KB6, which is a new leaf-inhabiting endophytic bacterium that suppresses black rot disease in sweet potato leaves. We determined the 7.0 Mb draft genome sequence of KB6 and have predicted 19 biosynthetic gene clusters for secondary metabolites, including heterobactins, which are a new class of siderophores. Notably, we showed the first internal colonization of host plants with Rhodococcus sp. KB6 and discuss its potential as a biocontrol agent for sustainable agriculture.
由于红球菌属具有降解多种有毒化学物质并产生生物活性化合物的能力，它们变得越来越重要。在此，我们报告了红球菌属菌株KB6的分离情况，它是一种新的叶内生细菌，可抑制甘薯叶的黑腐病。我们确定了KB6的7.0 Mb草图基因组序列，并预测了19个次生代谢物生物合成基因簇，包括异杆菌素，这是一类新的铁载体。值得注意的是，我们首次展示了红球菌属菌株KB6在宿主植物中的内部定殖，并讨论了其作为可持续农业生物防治剂的潜力。
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