Myristate can be used as a carbon and energy source for the asymbiotic growth of arbuscular mycorrhizal fungi.

ABSTRACT: Arbuscular mycorrhizal (AM) fungi, forming symbiotic associations with land plants, are obligate symbionts that cannot complete their natural life cycle without a host. The fatty acid auxotrophy of AM fungi is supported by recent studies showing that lipids synthesized by the host plants are transferred to the fungi, and that the latter lack genes encoding cytosolic fatty acid synthases. Therefore, to establish an asymbiotic cultivation system for AM fungi, we tried to identify the fatty acids that could promote biomass production. To determine whether AM fungi can grow on medium supplied with fatty acids or lipids under asymbiotic conditions, we tested eight saturated or unsaturated fatty acids (C12 to C18) and two β-monoacylglycerols. Only myristate (C14:0) led to an increase in the biom

SUBMITTER: Sugiura Y 

PROVIDER: S-EPMC7568319 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature