| 摘要 |
The present invention relates to inductible promoters for use in the control of heterologous genes in transformed plants. Suitable inducible promoters ar e those which are responsive to low levels of an environmentally acceptable an d non-phytoxic inducing agent, and which also demonstrates a low level of developmentally or environmentally induced expression. A preferred promoter naturally drives the expression of a 21.3kDa protein in Asparagus officinali s or an equivalent protein from the Lillaceae or Amaryllidaceae families. Unde r the control of a promoter of the invention, a gene will be expressed upon induction by SA or BTH, but preferably will not be developmentally expressed , systemically activated upon pathogen infection, or in response to ABA, ethylene, oxidative or osmotic stresses, or wounding.
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