The novel HbASI was cloned and characterized from the leaf of rubber tree.
HbASI gene was induced by both biotic and abiotic elicitors and involved in the defense response.
The recombinant HbASI inhibited trypsin, subtilisin A and α-amylase.
The recombinant HbASI was able to inhibit the growth of Phytophthora palmivora.