Kerrie Barry

Abstract Boechera sierraensis is a recently described apomictic triploid species (Brassicaceae) endemic to the high-elevation granitic slopes of the Sierra Nevada, USA. It displays extraordinary tolerance to heat, drought, and high light stress, making it an important emerging model for understanding plant adaptation to extreme alpine environments and rapid climatic change.

Editor’s summary Structured Abstract Abstract Supplementary Materials References and Notes Information & Authors Metrics & Citations Check Access References Figures Tables Media Share This article has 0 eLetter . Editor’s summary Grasses include many economically important food crops and function as primary producers in diverse ecosystems.

Abstract Mycorrhizal fungi play crucial roles in enhancing plant adaptation to heavy metal (HM) stress by interacting with host plants and other root microbiota, yet the molecular mechanisms underlying these interactions remain unclear. To elucidate how ectomycorrhizal fungi (EMF) mediate molecular dialogue between root-associated fungi and host plants under HM stress, we employed root metatranscriptomic analyses on a Pinus-Suillus system across a gradient of soil HM contamination.