Bioactive Exopolysaccharides Reveal Camellia oleifera Infected by the Fungus Exobasidium gracile Could Have a Functional Use.
Molecules
; 24(11)2019 May 29.
Article
em En
| MEDLINE
| ID: mdl-31146421
ABSTRACT
Camellia oleifera is an important Chinese commercial crop. Camellia oleifera can display abnormal leaves due to infection by the parasitic fungus Exobasidium gracile. Exobasidium gracile was isolated from infected leaves and used in fermentation, and exopolysaccharides EP0-1 and EP0.5-1 were purified from the fermentation broth. EP0-1 was an alkaline polysaccharide consisting mainly of the linkages α-d-Manp(1â, â2)-α-d-Manp(1â and â6)-α-d-Manp(1â, â3)-α-d-Glcp(1â andâ4)-α-d-Glcp(1â, terminal ß-d-Galf, (1â5)-ß-d-Galf, and terminal ß-D-GlcN(1â. EP0.5-1 was an acidic galactofuranose-containing polysaccharide. It contained the linkages of α-d-Manp(1â, â2)-α-d-Manp(1â, â6)-α-d-Manp(1â,â2, 6)-α-d-Manp(1â, â4)-α-d-Glcp(1â, and â4)-α-d-GlcUA(1â. Galactofuranose linkages were composed of terminal ß-d-Galf, (1â6)-ß-d-Galf and (1â2)-ß-d-Galf. Exobasidium gracile exopolysaccharides displayed significant immunoregulatory activity by activating macrophages. This research indicates that infected leaves from Camellia oleifera including the exopolysaccharides produced by the parasitic fungus Exobasidium gracile by are worth further investigation as a functional product.
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MEDLINE
Assunto principal:
Polissacarídeos
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Basidiomycota
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Extratos Vegetais
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Camellia
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article