Arabidopsis thaliana accumulates dehydroepiandrosterone after infection with phytopathogenic fungi - Effects on plants and fungi.

Progestogens and androgens have been found in many plants, but little is known about their physiological function. We used a previously established UPLC-ESI-MS/MS method to analyze progestogen and androgen profiles in fungal infections. Here we show that dehydroepiandrosterone (DHEA), a C steroid, specifically accumulates in shoots of Arabidopsis thaliana (L.

Herbivory by Leaf-Cutting Ants: Exploring the Jasmonate Response in Host and Non-Host Plants.

Leaf-cutting ants (Formicidae; Atta spp., Acromyrmex spp.) cut off pieces of leaves and other plant tissue and feed it to their symbiotic fungi.

Robotic mechanical wounding is sufficient to induce phenylacetaldoxime accumulation in .

This study investigated the accumulation of phenlyacetaldoxime (PAOx) and PAOx-Glc in leaves in response to herbivore infestation and mechanical wounding. Results show that PAOx levels peaked at 24 h post-infestation, while PAOx-Glc remained present for several days. The accumulation of PAOx began as early as 3 h after herbivory, with PAOx-Glc significantly increased after 6 h.