TY - GEN AU - Alan Varnam AU - Malcolm Evans TI - Environmental Microbiology SN - 9781040187982 PY - 2000///0922 PB - CRC Press N2 - Micro-organisms play a major role in the geochemistry of the planet, forming the basic stage in the food chain, and thus sustaining the existence of higher evolutionary life. The continuing interaction between these living organisms and the environment, combined with their exploitation by man are shaping the material world today.Over the last few y ER -