Hi All! I'm back from sabbatical and teaching Plant Ecophys again - a class near and dear to my heart! In the past, I've welcomed grad students and post-docs to share their research with students and their stories about how they got into the field.....

Submit 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

"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...

Check out this recently published paper by Seeley et al. in the Journal of Ecology illustrating how remote sensing reveals inter- and intraspecific variation in riparian cottonwood (Populus spp) responses to drought. The paper can be found at: besjournals.onlinelibrary.wiley.com/doi/abs/10.1...

🚨Job Alert 🚨 The Desert Botanical Garden is hiring a Scientific Illustrations Intern 🌵✏️ Get your portfolio together and submit your application here: recruiting.paylocity.com/Recruiting/J... #ConservationJobs #BotanicalIllustration #Hiring

New 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/...

THE NEW YORK KNICKS

Just over a week left to apply for a 3yr postdoc with me at Lancaster @lancasterplantbio.bsky.social looking at Rubisco engineering in vitro and in vivo to improve plant #photosynthesis #plantscijobs wp.lancs.ac.uk/lancsphotosy...

Leaf drought and heat tolerance are integrated across three temperate biome types I am very happy to see our paper out! Plant responses to many stresses are mediated by the same processes and I have long wondered how this relates to hotter droughts. www.nature.com/articles/s41...

This post is now online, for full details on how to apply please see: wp.lancs.ac.uk/lancsphotosy...

Excited 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. 😀🌱🧪🥼

Fully 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

Has to be up there as one of my favourite saguaros in the valley 🌵 #arizona #cacti #botany

Need a Monday pick-me-up? Here's a throwback to 2022, when our field ecology program director Susan Bush had an extraordinary encounter with a huge band of coatimundis while working at our field site in Wet Beaver Creek, AZ How many can you spot?? #coati #ecology #fieldwork #arizona

Mapping 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.

Might listen to this saxophone solo on an endless loop today. Rest in Peace and eternal gratitude to Garth Hudson, an actual musical genius and the last surviving member of the Band. “Garth made us sound like we did.” youtu.be/Q7yOGAmItFY?...

David Lynch gave us the language we needed to better articulate the indescribable strangeness of our shared reality. “Lynchian” is so overused because it’s a viscerally understandable word without any known synonyms. I can’t imagine a more beautiful artistic legacy than that.

Excited to share our paper with Anna Gardner and @florianabusch.bsky.social in Plant Ecophysiology!🌿 We review challenges in interpreting plant stress responses using gas exchange data, offer solutions to improve accuracy and discuss gaps in our current knowledge. www.sciltp.com/journals/Pla...

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/...

New 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

Check out this recently published paper by PhD candidate Marilynn Vazquez-Cruz on the evolutionary origin and climate niche space of succulent plants: doi.org/10.1093/jxb/... #Botany #PlantScience

Just out! By using high-thru-put phenotyping, we show that 60% of variation in wheat leaf respiration is under environmental control, with upto 1/3 of variance under genetic control. Super proud of Reshmi and team. @jxbotany.bsky.social @anuagrifood.bsky.social academic.oup.com/jxb/advance-...

For folks attending #AGU24, our lab has its 1st conference poster presentation led by PhD student Rebecca Senft! @RebeccaSenft Stop by her poster on the morning of Tues Dec10 to learn about the ecohydrology of contrasting riparian tree species (invasive vs native) in SE Utah. #ecophys #invasion

They say when life gives you lemons, make lemonade 🍋 Well when Phoenix gives you record heat, you study plant heat tolerance! This summer we used the natural heat to get our greenhouse up beyond 50°C (!) and studied how 8 dryland species responded - stay tuned for results! #Botany #PlantScience 🧪

Plant respiration alert! Important new review by Amthor in Field Crops Research. Key take homes: 30-60 % of Cassimilated in photosynthesis is later respired; opp to improve yield by reducing nonessential respiration; respiration a target for crop improvement. www.sciencedirect.com/science/arti...

🚨 Paid research experience for undergrads! 🚨

 Apply now for undergrad research summer program in Dr. Luiza Aparecido’s plant ecophys lab @ U of Utah, studying plant heat tolerance across Utah (May 19-Aug 1, 2025) For more info contact [email protected]

#botany #PlantSciJobs

Do you want to join my plant ecophysiology lab studying plant stress and mortality? I am hiring a biological scientist, a permanent research support position. Job posting and more information available here: explore.jobs.ufl.edu/en-us/job/53...

Check out this recent paper by Dr. Jaclyn Corbin et al. in Plant, Cell and Environment showing how leaf reflectance can predict interactive genetic and environmental effects on tree phenotypes: doi.org/10.1111/pce.... #OpenAccess #PlantBiology #Botany

All about saguaros. Lab manager Ali Schuessler presented to over 150 members of the Desert Foothills Land Trust in North Phoenix. Record temperatures in Phoenix have decimated thousands of saguaros and the public is taking notice. The DBG is researching strategies to protect saguaros. #Botany

One 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.)

Phoenix just experienced its hottest summer on record! Our lab focuses on studying plant ecophysiology traits that underlie adaptation to heat waves and drought in the Phoenix area, Sonoran Desert region, and drylands across the globe. Check out our web page at: dbg.org/research-con...

Canopy temperatures strongly overestimate leaf thermal safety margins of tropical trees - Manzi - 2024 - @newphyt.bsky.social nph.onlinelibrary.wiley.com/doi/10.1111/...

Exciting first post on BlueSky: We have a PhD opportunity with Anna Gardner & me @BIFoRUoB in mangroves ecophysiology! 🌱 🌡️ Potential funding through @CENTA_NERC - see here: centa.ac.uk/studentship/...

What sets succulent leaves apart from non-succulent leaves? A recent work in @annbot.bsky.social led by former lab PhD Dr. Giacomo Mozzi presents a structural leaf trait spectrum in succulent leaf taxa, and maps contrasts in leaf water storage vs. SLA doi.org/10.1093/aob/... #Botany #PlantScience

Interested in ecosystem C-N coupling and cycling? See our new Tansley Review in @newphyt.bsky.social : "Empirical evidence and theoretical understanding of ecosystem carbon and nitrogen cycle interactions". Led by @stineb.bsky.social and #LEMONTREE team nph.onlinelibrary.wiley.com/doi/10.1111/...

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/...

🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱 New review paper out: We outline the uncertainties/ambiguities that are present when estimating mesophyll conductance (gm). We also explore whether genetically engineering higher gm will lead to greater crop yields. 🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱 onlinelibrary.wiley.com/doi/full/10....

New paper alert! GPP in a juniper woodland constrained by plant water status. #waterpotential #stempsychrometry #eddycovariance nph.onlinelibrary.wiley.com/share/AEDQ6K...

I wrote a little thing on photosynthetic acclimation for American Journal of Botany. I cover the influence of (1) environmental variability and timescales (2) soil resource supply/demand Check it out here: bsapubs.onlinelibrary.wiley.com/doi/10.1002/...

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! 😎

New #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

Welcome to our newest lab arrivals - 20 young saguaro #cacti!   We're planting these saguaros in our #cactus common garden here at the Desert Botanical Garden, where they will help us study the response of cacti to changing soil water availability 🌵💧 #Botany #PlantScience 🌾🧪🌎

A new friend joined us outside for lunch today here at the Desert Botanical Garden - ground squirrels beware 👀 🐍

Our new paper finds direct cooling effects of winter cover cropping from increased albedo and latent heat flux The paper was led by former Masters student Risa McNellis and is out today. Check it out! esajournals.onlinelibrary.wiley.com/doi/full/10....

Stomata respond to temperature, even if VPD is held constant. This is ALL published data! (AFAIK) (Not my data - too many sources to reference, but watch this space.) Close to submission on this review, which is already two weeks overdue. Looks like I picked the wrong week to quit amphetamines.

Very proud of this excellent work by postdoc Juergen Knauer! Also read his Conversation article about it:

🧪🌏🌾 New paper out! We show more realistic photosynthesis models predict higher CO2 uptake going into the future: www.science.org/doi/10.1126/...

A direct response of stomata to temperature (DRST; controlling for VPD) can significantly cool a leaf, esp at high air T. Simulations based on energy balance, an empirical stomatal model, and all diurnal CIMIS data from 2022. Weak/strong = 1/3% inc in gs per K. Coming soon to a preprint near you...

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 🫵