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Endosymbiotic adaptations in three new bacterial species associated with Dictyostelium discoideum: Paraburkholderia agricolaris sp. nov., Paraburkholderia hayleyella sp. nov., and Paraburkholderia bonniea sp. nov.


ABSTRACT: Here we give names to three new species of Paraburkholderia that can remain in symbiosis indefinitely in the spores of a soil dwelling eukaryote, Dictyostelium discoideum. The new species P. agricolaris sp. nov., P. hayleyella sp. nov., and P. bonniea sp. nov. are widespread across the eastern USA and were isolated as internal symbionts of wild-collected D. discoideum. We describe these sp. nov. using several approaches. Evidence that they are each a distinct new species comes from their phylogenetic position, average nucleotide identity, genome-genome distance, carbon usage, reduced length, cooler optimal growth temperature, metabolic tests, and their previously described ability to invade D. discoideum amoebae and form a symbiotic relationship. All three of these new species facilitate the prolonged carriage of food bacteria by D. discoideum, though they themselves are not food. Further studies of the interactions of these three new species with D. discoideum should be fruitful for understanding the ecology and evolution of symbioses.

SUBMITTER: Brock DA 

PROVIDER: S-EPMC7247526 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Endosymbiotic adaptations in three new bacterial species associated with <i>Dictyostelium discoideum</i>: <i>Paraburkholderia agricolaris</i> sp. nov., <i>Paraburkholderia hayleyella</i> sp. nov., and <i>Paraburkholderia bonniea</i> sp. nov.

Brock Debra A DA   Noh Suegene S   Hubert Alicia N M ANM   Haselkorn Tamara S TS   DiSalvo Susanne S   Suess Melanie K MK   Bradley Alexander S AS   Tavakoli-Nezhad Mahboubeh M   Geist Katherine S KS   Queller David C DC   Strassmann Joan E JE  

PeerJ 20200522


Here we give names to three new species of <i>Paraburkholderia</i> that can remain in symbiosis indefinitely in the spores of a soil dwelling eukaryote, <i>Dictyostelium discoideum</i>. The new species <i>P. agricolaris</i> sp. nov.<i>, P. hayleyella</i> sp. nov.<i>,</i> and <i>P. bonniea</i> sp. nov<i>.</i> are widespread across the eastern USA and were isolated as internal symbionts of wild-collected <i>D. discoideum</i>. We describe these sp. nov. using several approaches. Evidence that they  ...[more]

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