Summary Filamentous fungi produce a vast array of secondary metabolites (SMs) and some play a role in agriculture or pharmacology. Sequencing of the rice pathogen Fusarium fujikuroi revealed the presence of far more SM‐encoding genes than known products. SM production is energy‐consuming and thus tightly regulated, leaving the majority of SM gene clusters silent under laboratory conditions. One important regulatory layer in SM...

Wolbachia is a maternally inherited and ubiquitous endosymbiont of insects. It can hijack host reproduction by manipulations such as cytoplasmic incompatibility ( CI ) to enhance vertical transmission. Horizontal transmission of Wolbachia can also result in the colonization of new mitochondrial lineages. In this study, we present a 15‐year‐long survey of Wolbachia in the cherry fruit fly Rhagoletis cerasi across Europe and the...

Summary Fusaric acid ( FSA ) is a mycotoxin produced by several fusaria, including the rice pathogen F usarium fujikuroi . Genes involved in FSA biosynthesis were previously identified as a cluster containing a polyketide synthase ( PKS )‐encoding ( FUB1 ) and four additional genes ( FUB2 ‐ FUB5 ). However, the biosynthetic steps leading to FSA as well as the origin of the nitrogen atom, which is incorporated into the polyketi...

Summary The plant pathogenic fungus F usarium fujikuroi is the causal agent of bakanae disease on rice due to its ability to produce gibberellins. Besides these phytohormones, F . fujikuroi is able to produce several other secondary metabolites ( SMs ). Although much progress has been made in the field of secondary metabolism, the transcriptional regulation of SM biosynthesis is complex and still incompletely understood. Envir...