Increasing the Richness of Culturable Arsenic-Tolerant Bacteria from Theonella swinhoei by Addition of Sponge Skeleton to the Growth Medium

  title={Increasing the Richness of Culturable Arsenic-Tolerant Bacteria from Theonella swinhoei by Addition of Sponge Skeleton to the Growth Medium},
  author={Ray Keren and Adi Lavy and Micha Ilan},
  journal={Microbial Ecology},
Theonella swinhoei is an arsenic hyper-accumulator sponge, harboring a multitude of associated bacteria. These bacteria reside in the mesohyl, the dense extracellular matrix of the sponge. Previous elemental analysis of separated cell fractions from the sponge had determined that arsenic is localized to the associated bacteria. Subsequently, sponge-associated arsenic-tolerant bacteria were isolated here and grouped into 15 operational taxonomic units (OTUs, 97 % similarity). Both culture… 
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