Description | Nick Harberd has made pioneering contributions to the solution of a fundamental problem in biology - the molecular mechanisms via which plant hormones control growth. He showed that the hormone gibberellin promotes growth by counteracting a family of nuclear growth-repressing proteins, and that this provides a key mechanism for adaptive regulation of growth in response to environmental change. He also showed how this mechanism underlies the action of genes responsible for the increase in yield of wheat varieties during the 'green revolution'. His discoveries have thus provided many important and original contributions to developmental, evolutionary and agricultural science. |