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Plant Exposure Chambers for Study of Toxic Chemical-Plant Interactions¹

ABSTRACT

Chambers for the study of plant uptake and phytotoxicity of toxic, radio-labeled chemicals are described. The chambers are designed to meet the criteria of continuously stirred tank reactors while providing containment for toxic chemical. They are computer managed and operated within a controlled environment room. Besides providing controlled conditions within the contained spaces, continuous measurements are made of various environmental parameters and plant transpiration, net photosynthesis, and dark respiration in up to 18 separate chambers.

Key Words: Computer-controlled laboratory • Photosynthesis • Transpiration

¹ Contriubtion from the USEPA, Toxics and Pesticides Branch, Corvallis Environ. Res. Lab., Corvallis, OR 97333.

² Plant physiologists, USEPA, Toxics and Pesticide Branch, Corvallis, OR 97333.

Received for publication February 11, 1987.