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ON EFFECTS OF PATHOGENIC ELICITOR TO INDUCE TOBACCO RESISTANCE AGAINST BROWN SPOT

Liang YuanCun, Shang MingQing, Aixin Liu, Hansong Dong

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Abstract

An elicitor derived from hypovirulent strain TBA16 walls of Alternaria alternata was studied on induced resistance and mechanism The elicitor induced tobacco resistance against brown sport with the highest effect of 54% After spraying of the elicitor,activities of phenylanine ammonia lyase (PAL),peroxidase (POD) and polyphenoloxidase(PPO) were increased in varying degrees PR-protein was also increased in content and showed the highest level at 10 days Salicylic acid was used as a positive mark,it showed not only higher induced effect,but also three enzymes activities and PR-protein in content than the elicitor did

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What this paper is about

An elicitor derived from hypovirulent strain TBA16 walls of Alternaria alternata was studied on induced resistance and mechanism The elicitor induced tobacco resistance against brown sport with the highest effect of 54% After spraying of the elicitor,activities of phenylanine ammonia lyase (PAL),peroxidase (POD) and polyphenoloxidase(PPO) were increased in varying degrees PR-protein was also increased in content and showed the highest level at 10 days Salicylic acid was used as a positive mark,it showed not only higher induced effect,but also three enzymes activities and PR-protein in content than the elicitor did

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Available abstract

An elicitor derived from hypovirulent strain TBA16 walls of Alternaria alternata was studied on induced resistance and mechanism The elicitor induced tobacco resistance against brown sport with the highest effect of 54% After spraying of the elicitor,activities of phenylanine ammonia lyase (PAL),peroxidase (POD) and polyphenoloxidase(PPO) were increased in varying degrees PR-protein was also increased in content and showed the highest level at 10 days Salicylic acid was used as a positive mark,it showed not only higher induced effect,but also three enzymes activities and PR-protein in content than the elicitor did

Key concepts: Elicitor, Salicylic acid, Point of delivery, Peroxidase, Alternaria alternata, Chemistry, Food science, Horticulture

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