摘要
为了研究沼气发酵液抑制西瓜枯萎病( Fusarium oxysporum f.sp . niveum) 的作用机理,使用不同来源和不同浓度的沼气发酵液处理西瓜植株,发现处理的植株体内的苯丙氨酸解氨酶( P A L) 的活性有显著升高,不同来源的沼气发酵液对植株的 P A L活性都有不同程度的增加,并与黄腐酸的含量有一定相关性.用黄腐酸处理西瓜植株也可以诱导 P A L
In order to study the inhibition mechanism of anaerobically digested slurry to watermelon wilt ( Fusarium oxysporum f. sp. niveum ), the slurries from different sources and at different concentrations were used to treat watermelon seedlings. Phenylalanine ammonia lyase (PAL) activity of the seedlings treated with different sources of slurries increased, compared with CK. The increased PAL activity level was related to the fulvic acid content in the anaerobically digested slurry. The treatment of fulvic acid could induce PAL activity, compared with CK.
出处
《应用与环境生物学报》
CAS
CSCD
1999年第S1期191-193,共3页
Chinese Journal of Applied and Environmental Biology
关键词
西瓜枯萎病
沼气发酵液
苯丙氨酸解氨酶
黄腐酸
wilt disease
anaerobically digested slurry
watermelon
phenylalanine ammonia lyase (PAL)
fulvic acid