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.
Bacteriophages. A bacteriophage is a virus that attacks a bacterium host, and is one of the most abundant organisms on our planet; they are found in soil, ocean water, aerosols, and within animal intestinal tracts.iruses differ, however, from the simpler autonomous replication of chemical crystals. This is due to the fact that a virus can inherit a genetic mutation and is also subject to similar natural selection processes of cellular organisms.