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The Scientific World Journal
Volume 2014, Article ID 201382, 10 pages
Research Article

Induction of Resistance Mediated by an Attenuated Strain of Valsa mali var. mali Using Pathogen-Apple Callus Interaction System

1College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
2College of Agronomy and Plant Protection, Key Lab of Integrated Crop Pest Management of Shandong Province, Qingdao Agricultural University, No. 700 Changcheng Road, Qingdao 266109, China

Received 7 May 2014; Accepted 1 June 2014; Published 25 June 2014

Academic Editor: Lucia Guilhermino

Copyright © 2014 Qingming Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Supplementary Material

To evaluate the induced resistance of the attenuated Vmm strain LXS081501, ‘Fuji’ and ‘Gala’ detached branches and younger trees were pretreated with LXS081501 and then the virulent Vmm strain LXS080601 was inoculated. The result showed that pretreatment of LXS081501 significantly affected the lesion size caused by LXS080601 both on ‘Fuji’ and ‘Gala’ branches (Table 1). When ‘Fuji’ and ‘Gala’ younger trees were inoculated with LXS080601 alone, the lesion sizes were 5.31 cm2 and 3.93 cm2 at 15 dpi, respectively. In contrast, pretreatment of ‘Fuji’ and ‘Gala’ younger trees with LXS081501 effectively mitigated the disease development caused by LXS080601 since the lesion sizes were only 1.11 cm2 and 1.15 cm2, respectively, much smaller than when inoculated with LXS080601 alone.

  1. Supplementary Material