How does fire break seed dormancy? Fatty acid composition in seed coats is not the mechanism

How does fire break seed dormancy?
www.botany.one/how-does-fir...

Fatty acid composition in seed coats is not the mechanism
#Botany #PlantScience

Seed fatty acid composition and physical dormancy in fire-prone ecosystems AbstractBackground and Aims. The maintenance of seed banks and timing of germination are fundamental to ensuring population persistence. Physical dormancy

While we found no correlation between seed dormancy-breaking temperatures and fatty acid composition, our research showed that fatty acid composition was distinct in different seed tissue types and shaped by habitat!

Read the full paper here: doi.org/10.1093/aob/... 🌱 (2/2)

The first chapter of my PhD is out! 🌱🔥

We looked at whether fatty acids (a common seed oil) changed composition across fire-prone and fire-free habitats + dormancy-breaking temperatures in physically dormant seeds! (1/2)

@markooiecol.bsky.social @ryantangney.bsky.social

doi.org/10.1093/aob/...

New paper out! After the 2019-2020 #fires in Australia our team undertook #IUCN Red List assessments of fire affected #plant species, to handle the volume we undertook paired rapid and full assessments and compared their accuracy 1/4

doi.org/10.1016/j.bi...

Defining the pyro‐thermal niche: do seed traits, ecosystem type and phylogeny influence thermal thresholds in seeds with physical dormancy? Seeds are a key pathway for plant population recovery following disturbance. To prevent germination during unsuitable conditions, most species produce dormant seeds. In fire-prone regions, physical .....

Finally a good reason to make my first bluesky post.
Our new paper describes the pyro-thermal niche - a way to qualify how seeds respond to fire type temperatures.

The metrics that comprise the pyro-thermal niche are influenced by phylogeny!

nph.onlinelibrary.wiley.com/doi/10.1111/...

#ESAus24 done and dusted! Thrilled to have co-organised a molecular ecology symposium with @nathalimicro.bsky.social and @ryantangney.bsky.social, and thanks @ecolsocaus.bsky.social for once again hosting an amazing conference! 🌱🔥