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Association between dipsacus saponin VI level and diversity of endophytic fungi in roots of Dipsacus asperoides.


ABSTRACT: Dipsacus asperoides contains multiple pharmacologically active compounds. The principal are saponins. The plant can be cultivated, but it contains lower levels of bioactive compounds than the plant in the wild. It may be the reason to exploit the endophytic fungi that colonize the plant roots in order to produce bioactive compounds. However, the endophytic fungi of D. asperoides have not been analyzed in detail. In this study, we isolated and identified 46 endophytic fungal strains from the taproots, lateral roots and leaves, and we used morphological and molecular biological methods to assign them into 15 genera: Fusarium sp., Ceratobasidium sp., Chaetomium sp., Penicillium sp., Aspergillus sp., Talaromyces sp., Cladosporium sp., Bionectria sp., Mucor sp., Trichoderma sp., Myrothecium sp., Clonostachys sp., Ijuhya sp., Leptosphaeria sp. and Phoma sp. Taproots contained abundant endophytic fungi, the numbers of which correlated positively with level of dipsacus saponin VI. Primary fermentation of several endophytic fungal strains from taproots showed that Fusarium, Leptosphaeria, Ceratobasidium sp. and Phoma sp. can produce the triterpenoid saponin. These results may guide efforts to sustainably produce bioactive compounds from D. asperoides.

PROVIDER: S-EPMC6394449 | BioStudies |

REPOSITORIES: biostudies

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