World's Largest Sitka Spruce Tree. A celebrated Sitka spruce (Picea sitchensis) on Klootchy Creek near Seaside, Oregon, receives so many visitors that recently a $50,000 boardwalk was constructed to preserve its roots from compaction. It is perhaps 700 years old, and truly amazing in stature.
Bacteriocins are antibacterial proteins produced by bacteria that kill or inhibit the growth of other bacteria. Many lactic acid bacteria (LAB) produce a high diversity of different bacteriocins. Though these bacteriocins are produced by LAB found in numerous fermented and non-fermented foods, nisin is currently the only bacteriocin widely used as a food preservative.
A bacteriophage is a kind of virus that can infect and replicate itself inside bacterial cells. The virus has a protein-encapsulated DNA or RNA genome and can have simple or complex anatomies.There are many types of bacteriophages including M13, T phage, lambda phage, MS2, G4, and Phix174. bacteriophage is a kind of virus that can infect and replicate itself inside bacterial cells. The virus has a protein-encapsulated DNA or RNA genome and can have simple or complex anatomies.