Zhao Q, Chen GD, Feng XL, Yu Y, He RR, Li XX, Huang Y, Zhou WX, Guo LD, Zheng YZ, Yao XS, Gao H. Nodulisporiviridins A-H, Bioactive Viridins from Nodulisporium sp. J Nat Prod. 2015 Jun 26;78(6):1221-30. PMID: 25978520.
From the abstract: "Eight new viridins, nodulisporiviridins A-H (1-8), were isolated from the extract of an endolichenic fungal strain Nodulisporium sp. (No. 65-17-2-1) that was fermented with potato-dextrose broth. ... The short-term memory assay on an Aβ transgenic drosophila model of Alzheimer's disease showed that all eight compounds improved the short-term memory capacity, with potencies close to that of the positive control (memantine)."