ABSTRACT

Microorganisms on Earth are widely distributed across different environmental habitats [1]. They are present in water, air, sediments, and soil. One of the reasons for the wide distribution of microorganisms in the environment is the great physiological diversity regarding the utilization of inorganic and organic compounds to sustain microbial viability, maintenance, reproduction, and growth [1]. Microbial cells degrade organic and inorganic compounds to sustain microbial metabolism. Some microbial species do not require high concentrations of organic or inorganic compounds to survive and grow. Microbial species such as Pseudomonas spp., Acinetobacter spp., Burkholderia spp., and Stenotrophomonas spp. exhibit a tremendous physiological versatility by using a wide variety of organic and inorganic compounds to support microbial metabolism.