Kaushal Manoj, Swennen Rony, Mahuku George
International Institute of Tropical Agriculture (IITA), Mikocheni B, Dar es Salaam 34441, Tanzania.
International Institute of Tropical Agriculture (IITA), Arusha 447, Tanzania.
Microorganisms. 2020 Mar 20;8(3):443. doi: 10.3390/microorganisms8030443.
We assessed the diversity, structure, and assemblage of bacterial and fungal communities associated with banana plants with and without f. sp. (Foc) symptoms. A total of 117,814 bacterial and 17,317 fungal operational taxonomy units (OTUs) were identified in the rhizosphere, roots, and corm of the host plant. Results revealed that bacterial and fungal microbiota present in roots and corm primarily emanated from the rhizosphere. The composition of bacterial communities in the rhizosphere, roots, and corm were different, with more diversity observed in the rhizosphere and less in the corm. However, distinct sample types i.e., without (asymptomatic) and with (symptomatic) symptoms were the major drivers of the fungal community composition. Considering the high relative abundance among samples, we identified core microbiomes with bacterial and fungal OTUs classified into 20 families and colonizing distinct plant components of banana. Our core microbiome assigned 129 bacterial and 37 fungal genera to known taxa.
我们评估了有和没有尖孢镰刀菌古巴专化型(Foc)症状的香蕉植株相关细菌和真菌群落的多样性、结构及组合情况。在寄主植物的根际、根系和球茎中,共鉴定出117,814个细菌操作分类单元(OTU)和17,317个真菌OTU。结果表明,根系和球茎中的细菌和真菌微生物群主要源自根际。根际、根系和球茎中细菌群落的组成不同,根际的多样性更高,球茎中的多样性较低。然而,不同的样本类型,即无症状和有症状的,是真菌群落组成的主要驱动因素。考虑到样本间的高相对丰度,我们鉴定出了核心微生物群,其中细菌和真菌OTU被分为20个科,并定殖于香蕉不同的植物组织中。我们的核心微生物群将129个细菌属和37个真菌属归类到已知分类群。