Control of Black Mould Disease in ‘Yali’Pear Fruit by the Treatment withASM Induction after Harvest

ACTA HORTICULTURAE SINICA ›› 2005, Vol. 32 ›› Issue (5): 783-787.

• 研究论文 • Previous Articles Next Articles

Control of Black Mould Disease in ‘Yali’Pear Fruit by the Treatment withASM Induction after Harvest

Cao Jiankang;JiangWeibo

(College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China)

Received:2005-03-25 Revised:2005-05-09 Online:2005-10-25 Published:2005-10-25

Abstract

Abstract: Acibenzolar-S-methyl (ASM) is an important inducer of genes related to disease resistance in plant. ‘Yali’pear fruit were wounded and inoculated with Alternaria alternata after vacuum infiltration of ASM. Results showed that 0.5 mmol·L ^{- 1} ASM treatment effectively inhibited the development of black mould disease in inoculated fruit or in intact fruit, enhanced activities of phenylalanine ammonia-lyase ( PAL) and chitinase (CHT) , and led to accumulation of H₂O₂ and total phenolic compounds. In vitro experiments indicated thatASM did not inhibit the growth of the fungus, imp licated that the alleviation of fruit disease by ASM treatment is attributed to its ability to enhance defense system in fruit rather than its direct inhibitory effect on the fungus.

Key words: Acibenzolar-S-methyl, Pear, Yali pear, Alternaria alternata, Disease resistance

CLC Number:

S 661.2

Cao Jiankang;JiangWeibo. Control of Black Mould Disease in ‘Yali’Pear Fruit by the Treatment withASM Induction after Harvest[J]. ACTA HORTICULTURAE SINICA, 2005, 32(5): 783-787.

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Control of Black Mould Disease in ‘Yali’Pear Fruit by the Treatment withASM Induction after Harvest

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