Molecular Characterization of a Fungal Ketide Synthase Gene Among Swainsonine-Producing Alternaria Species in the USA

AI Noor, M Neyaz, D Cook, R Creamer - Current Microbiology, 2020 - Springer
Locoweeds are toxic leguminous plants in Astragalus and Oxytropis genera that contain
fungal endophytes of Alternaria section Undifilum species. These fungi produce …

Potential role for saccharopine reductase in swainsonine metabolism in endophytic fungus, Undifilum oxytropis

S Mukherjee, AL Dawe, R Creamer - Fungal biology, 2012 - Elsevier
Locoweed plants in the southwestern United States often harbour a slow-growing
endophytic fungus, Undifilum oxytropis (Phylum: Ascomycota; Order: Pleosporales), which …

Swainsonine biosynthesis genes in diverse symbiotic and pathogenic fungi

D Cook, BGG Donzelli, R Creamer… - G3: Genes …, 2017 - academic.oup.com
Swainsonine—a cytotoxic fungal alkaloid and a potential cancer therapy drug—is produced
by the insect pathogen and plant symbiont Metarhizium robertsii, the clover pathogen …

Phylogenetic comparison of swainsonine biosynthetic gene clusters among fungi

M Neyaz, S Das, D Cook, R Creamer - Journal of Fungi, 2022 - mdpi.com
Swainsonine is a cytotoxic alkaloid produced by fungi. Genome sequence analyses
revealed that these fungi share an orthologous gene cluster, SWN, necessary for …

Genetic Relationships in the Toxin-Producing Fungal Endophyte, Alternaria oxytropis Using Polyketide Synthase and Non-Ribosomal Peptide Synthase Genes

R Creamer, DB Hille, M Neyaz, T Nusayr, CL Schardl… - Journal of Fungi, 2021 - mdpi.com
The legume Oxytropis sericea hosts a fungal endophyte, Alternaria oxytropis, which
produces secondary metabolites (SM), including the toxin swainsonine. Polyketide synthase …

Production of the Alkaloid Swainsonine by a Fungal Endophyte in the Host Swainsona canescens

DS Grum, D Cook, D Baucom, IW Mott… - Journal of natural …, 2013 - ACS Publications
Legumes belonging to the Astragalus, Oxytropis, and Swainsona genera have been noted
by ranchers in the Americas, Asia, and Australia to cause a neurologic disease often …

[PDF][PDF] The biosynthesis pathway of swainsonine, a new anticancer drug from three endophytic fungi

Z Ren, R Song, S Wang, H Quan, L Yang… - … of Microbiology and …, 2017 - koreascience.kr
Swainsonine (SW) is the principal toxic ingredient of locoweed plants that causes locoism
characterized by a disorder of the nervous system. It has also received widespread attention …

Construction of Yeast One-Hybrid Library of Alternaria oxytropis and Screening of Transcription Factors Regulating swnK Gene Expression

J Xue, H Zhang, Q Zhao, S Cui, K Yu, R Sun, Y Yu - Journal of Fungi, 2023 - mdpi.com
The indolizidine alkaloid-swainsonine (SW) is the main toxic component of locoweeds and
the main cause of locoweed poisoning in grazing animals. The endophytic fungi, Alternaria …

Swainsonine-containing plants and their relationship to endophytic fungi

D Cook, DR Gardner, JA Pfister - Journal of Agricultural and Food …, 2014 - ACS Publications
Swainsonine, an indolizidine alkaloid with significant physiological activity, is an α-
mannosidase and mannosidase II inhibitor that alters glycoprotein processing and causes …

[PDF][PDF] Saccharopine reductase influences production of Swainsonine in Alternaria oxytropis

P Lu, X Li, S Wang, F Gao, B Yuan, L Xi, L Du, H Jiya… - Sydowia, 2021 - sydowia.at
Swainsonine (SW) was first isolated from Swainsona canescens, and then identified in
several Astragalus and Oxytropis species, synthesized by the endophytic fungus Alternaria …