Naturally potential antiviral agent polysaccharide from Dendrobium nobile Lindl.

Abstract:

:A polysaccharide DNPE6(11) was purified from Dendrobium nobile Lindl. (D. nobile Lindl.). Its structural characteristic, antiviral activity, and preliminary mechanism were studied. The structural characteristic analysis indicated that DNPE6(11) was a novel homogenous heteropolysaccharide from D. nobile Lindl. Bioactivity assays indicated that DNPE6(11) possessed outstanding curative and inactivating activities against cucumber mosaic virus, which were superior to chitosan oligosaccharide and lentinan. Additionally, DNPE6(11) exhibited notable protective activity against potato virus Y, which was better than Ningnanmycin. Furthermore, the preliminary mechanism study found that DNPE6(11) cannot accumulate salicylic acid to induce systemic acquired resistance, but had a strong binding capacity for cucumber mosaic virus coat protein. Therefore, DNPE6(11) could be considered as a promising antiviral agent to study in the future.

journal_name

Pestic Biochem Physiol

authors

Li Z,Xiang J,Hu D,Song B

doi

10.1016/j.pestbp.2020.104598

subject

Has Abstract

pub_date

2020-07-01 00:00:00

pages

104598

eissn

0048-3575

issn

1095-9939

pii

S0048-3575(20)30093-6

journal_volume

167

pub_type

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