Journal
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Volume 62, Issue 14, Pages 3047-3056Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jf404423x
Keywords
benzothiadiazole; chitosan; elicitors; Fragaria x ananassa; gene expression
Funding
- EUBerry Project [EU FP7 KBBE] [265942]
Ask authors/readers for more resources
The expression of 18 defense genes in strawberry fruit treated with elicitors: chitosan, BTH, and COA, at 0.5, 6, 24, and 48 h post-treatment was analyzed. The genes were up-regulated differentially, according to the elicitor. Chitosan and COA treatments promoted the expression of key phenylpropanoid pathway genes, for synthesis of lignin and flavonoids; only those associated with flavonoid metabolism were up-regulated by BTH. The calcium-dependent protein kinase, endo-beta 1,4-glucanase, ascorbate peroxidase, and glutathione-S-transferase genes were up-regulated by BTH. The K+ channel, polygalacturonase, polygalacturonase-inhibiting protein, and beta-1,3-glucanase, increased in response to all tested elicitors. The enzyme activities of phenylalanine ammonia lyase, beta-1,3-glucanase, Chitinase, and guaiacol peroxidase supported the gene expression results. Similarity of gene expression was >72% between chitosan and COA treatments, while BTH showed lower similarity (38%) with the other elicitors. This study suggests the relationship between the composition of the elicitors and a specific pattern of induced defense genes.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available