, Volume 21, Issue 12, pp 1188-1193
Date: 18 Jun 2003

Rhizosecretion of recombinant proteins from plant hairy roots

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Abstract

Rhizosecretion of a target protein in the hydroponic medium provides an alternative manufacturing platform that simplifies the downstream purification procedure and increases protein yield. In order to increase the production rates of rhizosecreted proteins, we have exploited the ability of Agrobacterium rhizogenes to induce the formation of large amounts of root tissue on transgenic tobacco plants engineered to secrete a model recombinant protein, human secreted alkaline phosphatase (SEAP). The secretion of SEAP from hairy roots induced on the stems of transgenic tobacco plants was 5–7 times higher than that from adventitious transgenic roots.

Communicated by W. Harwood