Paraburkholderia symbionts isolated from Dictyostelium discoideum induce bacterial carriage in other Dictyostelium species
Paraburkholderia symbionts isolated from Dictyostelium discoideum induce bacterial carriage in other Dictyostelium species
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DOI：
10.1098/rspb.2023.0977
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发表时间：
2023-07-26
影响因子：
4.7
通讯作者：
Strassmann，Joan E. E.
中科院分区：
文献类型：
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作者：
Mather，Rory Vu;Larsen，Tyler J. J.;Strassmann，Joan E. E.
社会阿米巴Dictyostelidiscoideum与Paraburkholderia属的细菌内共生体有着复杂的关系，这可以使其宿主受益，使其能够在整个生命周期中携带猎物细菌。D和D之间的关系。Discoideum和Paraburkholdera已被证明在许多菌株和大范围的地理区域中发生，但关于Paraburkholderia与其他Dictyostelidae物种的潜在相互作用知之甚少。我们探索了三种拟步甲藻在其他鞭毛虫寄主中稳定感染和诱导细菌携带的能力。我们发现，这三种拟甲藻都成功地感染并诱导了7种竹鞭毛虫寄主的携带。而总体行为在性质上类似于以前在D感染中观察到的行为。在盘状菌中，不同寄主/共生体组合的结果差异表明伙伴之间存在一定程度的专化。Paraburkholderia无法与更远缘的寄主紫罗兰保持稳定的联系。我们的结果表明，Paraburkholderia的共生关系的机制和进化历史可能在Dictyostelium宿主中是普遍的，但不是如此普遍，以至于它可以与其他属的宿主联系在一起。我们的工作进一步发展了一个新兴的研究微生物共生的模型系统。
The social amoebaDictyostelium discoideumengages in a complex relationship with bacterial endosymbionts in the genusParaburkholderia, which can benefit their host by imbuing it with the ability to carry prey bacteria throughout its life cycle. The relationship betweenD. discoideumandParaburkholderiahas been shown to take place across many strains and a large geographical area, but little is known aboutParaburkholderia's potential interaction with other dictyostelid species. We explore the ability of threeParaburkholderiaspecies to stably infect and induce bacterial carriage in other dictyostelid hosts. We found that all threeParaburkholderiaspecies successfully infected and induced carriage in seven species ofDictyosteliumhosts. While the overall behaviour was qualitatively similar to that previously observed in infections ofD. discoideum, differences in the outcomes of different host/symbiont combinations suggest a degree of specialization between partners.Paraburkholderiawas unable to maintain a stable association with the more distantly related hostPolysphondylium violaceum. Our results suggest that the mechanisms and evolutionary history ofParaburkholderia's symbiotic relationships may be general withinDictyosteliumhosts, but not so general that it can associate with hosts of other genera. Our work further develops an emerging model system for the study of symbiosis in microbes.