"previously unknown bacteria". Proprietary does not imply copyright, because they may have other property such as patents and trade secrets instead.
2) By patenting the industrial process that makes use of the bacteria, thus gaining an exclusive commercial right to it.
Now CA3153196A1 is the interesting one as it names Xanthobacter sp. VTT-E-193585 as the strain of interest. You even get a 16S rRNA sequence with it for doing some taxonomy! This is not to be confused with FI129574B involving a similar but genetically modified bacterium.