Brad Posch
Researcher at the Desert Botanical Garden, AZ
Plant ecophysiology, heat tolerance, photosynthesis 🌿🌡️
Canberran
- Reposted by Brad Posch🌳PhD Opportunity in plant ecophysiology🌡️ Join EPFL (Switzerland) for fully-funded 4yr PhD on tree responses to air drought and heat. Climate chamber + long-term experiments to uncover physiological thresholds under climate change. www.epfl.ch/labs/perl/pe...
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- Reposted by Brad PoschHigh #temperature acclimation of #photosystem II in land plants #TansleyReview by @bposch.bsky.social et al. nph.onlinelibrary.wiley.com/doi/10.1111/... @hultinelab.bsky.social #PlantScience #photosynthesis
- Reposted by Brad PoschSave the date! 47th New Phytologist Symposium on 'Extreme Heat: extending the thermal limits of life'. Explore how extreme heat affects plants that underpin ecosystem productivity. 2-5 June 2026, Cordoba, Spain. @newphyt.bsky.social www.newphytologist.org/events/47-nps
- Check out our new Tansley Review on leaf heat acclimation in @newphyt.bsky.social, the result of a great collaboration with an even greater team! @martijnslot.bsky.social @seanmichaletz.bsky.social @nicolebison.bsky.social @luiza-aparecido.bsky.social @owenatkin.bsky.social @hultinelab.bsky.social
- New paper led by @bposch.bsky.social out in @newphyt.bsky.social . We reviewed evidence, mechanisms, and consequences of high temperature acclimation of leaf heat tolerance: nph.onlinelibrary.wiley.com/doi/10.1111/...
- Reposted by Brad Posch🌿 Join us at #EGU26 for session BG3.37 – Impacts of climatic extremes on plants & ecosystems! 🔥 We welcome studies on heat, drought & variability from leaf to landscape 🌍 Submit your abstract 👉 meetingorganizer.copernicus.org/EGU26/sessio... @kateplantphys.bsky.social @alyssakullberg.bsky.social
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- Reposted by Brad PoschSubmit an abstract to our #AGU2025 session "Heat and Microclimate Impacts on Plant Functioning: From Molecules to the Biosphere" (agu.confex.com/agu/agu25/pr...) @nicolebison.bsky.social @luiza-aparecido.bsky.social @bposch.bsky.social @agu.org @agubiogeosciences.bsky.social @gec-agu.bsky.social
- Reposted by Brad Posch"Heat waves are getting more dangerous with climate change — and we may still be underestimating them" | Nice piece by @afreedma.bsky.social for @cnn.com that references our recent @pnas.org article: edition.cnn.com/2025/06/23/c...
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- Reposted by Brad PoschNew paper published by Wilder et al. in the journal Global Change Biology reveals how recent anomalous drought and heat events are impacting native succulents in the Sonoran Desert. The paper can be accessed at: onlinelibrary.wiley.com/doi/10.1111/...
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- Reposted by Brad PoschExcited to share that I'll soon be recruiting a 3 year postdoc to join the lab @lancasterplantbio.bsky.social to work with me on Rubisco biochemistry and engineering. Official advertising details to be released very soon, watch this space! Please spread the word. 😀🌱🧪🥼
- Reposted by Brad PoschFully funded PhD in Plant Ecophysiology at UBC in Vancouver 🍁! Possible topics include leaf physiology, thermal ecology, microclimates, scaling, tree physiology, forest ecology & more. Start Jan/May/Sept 2026. michaletzlab.org Please share! #PlantEcoPhys #Ecology #Botany #PhDposition #GradSchool
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- Reposted by Brad PoschMapping the roots of saguaros at Saguaro NP. The DBG is partnering with SNP and the U of Wyoming to map the roots of saguaros. Knowing the distribution of saguaro roots reveals how sensitive they are to droughts, and to what extent these iconic plants engineer the water cycle of desert ecosystems.
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- Enjoyed chatting about our recent work on leaf cooling during extreme heat! If the clip has you curious, you can find the paper here www.pnas.org/doi/10.1073/...
- DPEL in the news! Check out Brad Posch discussing how cottonwood trees stay cool in the summer heat: www.12news.com/video/news/r...
- Reposted by Brad PoschNew in #NewPhytologist: Temperature governs the relative contributions of cuticle and stomata to leaf minimum conductance (shorturl.at/f9h7O) - Exciting work with #MichaletzLab PhD graduate #JosefGaren @ubcbotany.bsky.social @ubcbiodiversity.bsky.social @science.ubc.ca @newphyt.bsky.social
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- Reposted by Brad PoschOne part of our upgraded infrastructure may affect your profile. If you see your handle now says “Invalid handle,” please reverify it by navigating to Settings > Change my handle > Type in your current handle > Verify DNS Record > Update. (Basically, update to the same handle.)
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- Leaf cooling during extreme heat 🌡️🍃 Leaf thermal thresholds breached 🥵 Tradeoffs between thermal and hydraulic safety 🤝 Read about all this and more in our new paper in PNAS! #Botany #PlantScience 🌾🧪 www.pnas.org/doi/10.1073/...
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- Couldn't resist grabbing the Licor-600 porometer to measure PAR during the eclipse - dipped down to about 680 umol during the peak here in Phoenix! 😎
- Reposted by Brad PoschNew #TansleyReview on #Plasmodesmata by Estee E. Tee and @pdchristine.bsky.social "Plasmodesmata and intercellular molecular traffic control" Out now in @newphyt.bsky.social nph.onlinelibrary.wiley.com/doi/10.1111/... #️⃣ #PlantScience #PlantDevelopment
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- A new friend joined us outside for lunch today here at the Desert Botanical Garden - ground squirrels beware 👀 🐍
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- Chuffed to say our great new paper led by Lingling Zhu just hit New Phyt! If you're interested in the timescale of leaf heat stress response, and/or the mechanisms behind it, then this one's for you 🫵
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