Penicillium protein elicitor EPTP and application thereof in improving plant disease resistance

The invention relates to penicillium protein elicitor EPTP and application thereof in improving plant disease resistance. The protein sequence of the EPTP protein elicitor is shown as SEQ ID NO.2, and the molecular weight is 19247 Da. EPTP induces significant increase of activity of phenylalanine ammonialyase, peroxidase and polyphenol oxidase, and when the elicitor induces tobacco anaphylactic reaction, an anaphylactic reaction marker gene hin1 is induced to express; it is indicated through semiquantitative RT-PCR results that EPTP can induce tobacco to obtain systemic acquired resistance, cause up-regulation of the tobacco blade resistance gene transcription level, and induce expression of resistance gene related to the salicylic acid path and the jasmonic acid path. After being applied, EPTP can improve resistance to viruses and pathogenic bacteria by plants, takes effects efficiently, does not pollute environment, reduces dosage of chemical pesticide and has wide application prospects as a plant immunity