The abstract is read at the publisher; the summary is JClub's.
Yellow-cedar seedlings show the strongest freeze-thaw hydraulic dysfunction, with 58% simulated radial conductivity loss at -9°C driven by cortical lacunae occupying 20% of cortical area.
- Why it matters: Snowpack loss exposes conifer fine roots to repeated freeze-thaw cycles, but the injury mechanism and why species differ in vulnerability remain unclear.
- What they did: In 96 seedlings of four Pacific Northwest conifers, roots were exposed to seven daily temperature cycles with minima of 3, -3, or -9°C, measuring xylem and radial conductivity loss, cortical lacunae, and root economics traits.
- The result: Xylem conductivity loss stayed low (mean 11–14%) across species and treatments, while interspecific differences tracked cortical wall construction and root economics, with more acquisitive roots more vulnerable.
The findingWhy it mattersWhat they didThe result
AI summary of the abstract · may contain errors · not medical advice · read the paper.