Journal of Pure and Applied MicrobiologyVol. 8 No. May 2014 Special Edition

Research on Inhibition of Cladosporium cucumerinum and Disease Resistance of Plant by Water Extracts from Kernel Apricot and Phellodendron Leaves

Xiaojin Zou1, Zhan Xiang Sun1*, Ning Yang1, Jingwen An1, Erlin Bo2, Liangshan Feng1, Yingzuo Han1 and Ziqi Liu1

1Liaoning Academy of Agricultural Sciences, Shenyang, Liaoning - 110161, China. 2Liaoning Inspection and Testing Bureau for Aquatic Product Quality and Safety, Shenyang, Liaoning - 110866, China.

Received on 12 April 2014 and accepted on 09 May 2014

 

ABSTRACT

The aim of this study was to investigate allopathic effects of botanical extracts from Armeniaca sibirica?vulgaris and Platycladus orientalis leaves on Cladosporium cucumerinum and cucumber. Extracts from A. sibirica?vulgaris and P. orientalis were adopted and the major cucumber cultivar named Jinlv 3 was taken as the material to study the effect of prevention on C. cucumerinum through pot experiment. There are inhibitory effects of extracts from A. sibirica?vulgaris and P. orientalis leaves on C. cucumerinum to some extent. There is a significant effect of extract from 0.5 kg/L A. sibirica?vulgaris with inhibitory effect of 22.83%. After disoperation of C. cucumerinum pathogen on cucumber plant, extracts from both A. sibirica?vulgaris and P. orientalis leaves can effectively decrease MDA content in cucumber leaves. Extract from A. sibirica?vulgaris leaves can significantly increase protein content in cucumber plant. Moreover, there is an increase of antioxidant enzyme POD and SOD in cucumber plant and disease resistance of C. cucumerinum after using extracts from A. sibirica?vulgaris and P. orientalis leaves.

Keywords : Armeniaca sibirica?vulgaris; Platycladus orientalis; cucumber; Induced resistance; Cladosporium cucumerinum.