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对甘蓝型油菜“西农长角”发芽 5d的幼苗子叶进行涂抹抗性诱导效应及基机理的影响研究表明 ,脱乙酰化几丁质对抗性的诱导与水扬酸 (SA)相似 ,但乙酰化程度对诱导效果有显著的影响并体现出一定的规律性。苯丙氨酸解氨酶 (PAL)活性随乙酰化程度增加而提高 ;而几丁质酶活性则随乙酰化程度增加而下降 ,只有完全脱乙酰化 (D .A .为 0 % )的 10B和GC能诱导酶活性提高 ,而D .A .为 10 %、2 0 %、30 %的 7B、8B和 9B则表现出抑制作用 ;过氧化物酶(POD)活性都能被诱导而比对照高 ,但乙酰化程度的影响不显著。
Studies on the effects of resistance induction and basal mechanism of resistance to inoculation on young cotyledon of Brassica napus “Westongnong” germinated for 5 days showed that the antagonism of deacetylated chitin was similar to that of salicylic acid (SA) The degree of the degree of the induction effect has a significant impact and reflect a certain regularity. Phenylalanine ammonia lyase (PAL) activity increased with the degree of acetylation, while the activity of chitinase decreased with the degree of acetylation. Only the completely deacetylated (D, A, 0%) 10B And GC could induce the increase of enzyme activity, while the inhibitory effects of 10%, 20%, 30% of 7B, 8B and 9B on D.A. were observed. The activities of peroxidase (POD) High, but the degree of acetylation is not significant.