Journal
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
Volume 33, Issue 9, Pages -Publisher
SPRINGER
DOI: 10.1007/s11274-017-2333-3
Keywords
Salecan oligosaccharide; Salicylic acid; Jasmonate; Necrotroph; Plant protection
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Funding
- National Natural Science Foundation of China [31500418]
- Natural Science Foundation of Jiangsu Province [BK20150773]
- Fundamental Research Funds for the Central Universities [30915011101, 30915011310]
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pathogenesis-related proteins were up-regulated at different time by means of quantitative RT-PCR analysis. Importantly, the sequential activation of salicylic acid-mediated and jasmonate-mediated signaling pathway was observed in leaves. Furthermore, pot test and antimicrobial test gave the fact that pretreatment with ScOs restrained the leaf lesions caused by infection of Botrytis cinerea Bc0510 via the enhancement of defense responses of A. thaliana. In conclusion, Salecan oligosaccharides serve as an elicitor which can be used for biological control of plant pathogen. Oligosaccharides from the water-soluble beta-glucan, Salecan, were investigated to evaluate the activation effect on the defense responses of Arabidopsis thaliana Col0. Salecan oligosaccharides (ScOs, DP 5-10) were prepared at first by acid hydrolysis and gel filtration chromatography and then employed for foliar spray on Arabidopsis seedlings and plants. After ScOs treatment, increase of hydrogen peroxide was histologically and analytically detected in leaves. Transcription levels of several indicator genes which correspond to the signaling pathways and
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