Fungi arsenic biotransformation

The more troublesome problem is the biotransformation of arsenic into arsine gas. Four common soil fungi, two anaerobic bacteria and algae in surface water can generate a methylated version of arsine. Generally, see Arsenic Speciation in the Enviromnent by W. R. Cullen and K. J. Reimer, Chemistry Review (1989) Arsenic in the Soil Environment by E. Smith, R. Naidu, and A. M. Alston, Advances in Agronomy (1998) and Arsenic Chemistry in Soils An Overview of Thermodynamic Predictions and Field Observations by Muhammed Sadiq, Water Air and Soil Pollution (1997). 

The more troublesome problem is the biotransformation of arsenic into arsine gas. Four common soil fungi, two anaerobic bacteria, and algae in surface water can generate a methylated version of arsine. It is unknown whether these same biological processes can convert antimony to stibine. 

---