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Diego A. Márquez

@dmarquez.bsky.social
710 followers 334 following 14 posts

I am a Plant Physiologist interested in water and CO2 movement within the leaf | Research Fellow Busch Lab | Born at 345 ppm atmospheric CO2

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Diego A. Márquez @dmarquez.bsky.social · 25/09/2026
A microbiologist, a biophysicist and a mathematician walk into a bar… well, a metagenomics lab, actually. 🧬 An amazing interdisciplinary collaboration with Mabi Behruznia and Frederick Silva-Toro.
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Diego A. Márquez @dmarquez.bsky.social · 21/08/2026
🌿 Unsaturation 2026 in South Lake Tahoe: a small workshop on when and how leaf air spaces become unsaturated. Thanks @tombuckleylab.bsky.social for the invitation, with support from @ucdavisplants.bsky.social and @li-corenv.bsky.social I shared our gas-exchange work on non-stomatal control. 💧
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New Phytologist @newphyt.bsky.social · 28/04/2026
Water loss control beyond stomatal mechanisms Perera-Castro et al. nph.onlinelibrary.wiley.com/doi/10.1111/...
Response to dehydration of net CO2 assimilation rate and transpiration rate for the studied species.
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Diego A. Márquez @dmarquez.bsky.social · 25/04/2026
New paper in New Phytologist, led by Alicia Perera Castro! 🌿 with @florianabusch.bsky.social and David Hanson Mosses can regulate water loss without stomata. This challenges passive poikilohydry and hints at an ancestral nonstomatal mechanism shared with vascular plants. doi.org/10.1111/nph....
doi.org
Evidence for regulation of transpiration in nonstomatal plants: insights from bryophyte gametophytes
Kinetics of cell wall water vapor potential (Ψcw) and resistance of cell wall and plasmatic membrane to water flux in response to cytoplasmic water potential (Ψcyt) during dehydration. Ψcyt was calcu....
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Lancaster Plant Biology @lancasterplantbio.bsky.social · 19/03/2026
Great to have @dmarquez.bsky.social visit today for a fascinating seminar on water use efficiency and non-stomatal control of transpiration. Lots of interesting discussions afterwards with Plant Bio people, thanks for visiting Diego! @sci-tech-lancaster.bsky.social
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Mabi Behruznia @mabi-behruznia.bsky.social · 13/11/2025
So excited to share our new preprint! We used meta-transcriptomics and multiplex imaging to identify disease-specific signatures in liver tissues. We also detected viral signatures and immune activation pathways in seronegative hepatitis (SNH) patients. #Autoimmune_hepatitis #Seronegative_hepatitis
assets-eu.researchsquare.com
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Diego A. Márquez @dmarquez.bsky.social · 10/11/2025
If you’re interested in gaining practical experience with the use of stable isotopes and related equipment in plant and environmental science, I can recommend the SIBS workshop (30 Jan – 6 Feb 2026, Uni of Sydney, Australia). Details: www.bioisotopesworkshop.com/workshop-info/
bioisotopesworkshop.com
Workshop Info
Hands-on stable isotope workshops across Australia.
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Pallavi Singh @thepallavisingh.bsky.social · 04/10/2025
**Please Repost** Pallavi Singh Lab is looking for two Postdocs to join our team studying how plants balance carbon, water, and resilience in a changing climate. PlantPlug PDRA: vacancies.essex.ac.uk/tlive_webrec... REVOLUTION PDRA: vacancies.essex.ac.uk/tlive_webrec... Deadline: October 15.
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The Royal Society @royalsociety.org · 28/08/2025
Professor Susanne von Caemmerer FRS and Professor Graham Douglas Farquhar FRS are jointly awarded the Royal Medal (Biological) 2025 for refining the ways we monitor and model photosynthesis in leaves from molecular to global scales. #RSMedals royalsociety.org/medals-and-prizes/…
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Diego A. Márquez @dmarquez.bsky.social · 05/08/2025
Flash talks at the New Phytologist Next Generation Scientists 2025 event at the University of Birmingham, UK! Sharing insights on mesophyll conductance—how shifts in liquid-phase diffusivity shape gas exchange. @newphyt.bsky.social @unibirmingham.bsky.social
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Diego A. Márquez @dmarquez.bsky.social · 13/07/2025
Preprint with @lucascernusak.bsky.social, @florianabusch.bsky.social and Graham Farquhar! We show that mesophyll cell water status is the key signal regulating non-stomatal control of transpiration. We introduce a mechanistic model linking plant hydraulics and gas exchange. doi.org/10.1101/2025...
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Diego A. Márquez @dmarquez.bsky.social · 19/06/2025
🌱 The first issue of Plant Ecophysiology is out! Chief Editor Jaume Flexas shares his vision for the future of plant science publishing—and how Plant-Environment Interactions is leading the way. A standout feature? Reviewers are paid for their work. Editorial: media.sciltp.com/articles/250...
media.sciltp.com
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Diego A. Márquez @dmarquez.bsky.social · 09/05/2025
Very excited to present our research on “Biochemical Modulation of Mesophyll Resistance” at the Gordon Research Seminar in June. Many thanks to the organisers for the opportunity. Looking forward to discussing mesophyll conductance and photosynthesis with everyone at the meeting in Newry!
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in silico Plants @insilicoplants.bsky.social · 30/04/2025
We are a proud sponsor of CO2 Assimilation in Plants from Genome to Biome: Probing Mechanisms Across Scales Gordon Research Conference June 8 - 13, 2025 | Newry, Maine register here: www.grc.org/co2-assimila... #PlantScience #PlantSciEvents
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Diego A. Márquez @dmarquez.bsky.social · 05/04/2025
Excited to share a new preprint led by Alicia Perera-Castro! 🌿 Mosses actively regulate water loss without stomata, challenging the view of poikilohydry as purely passive—and hinting at a mechanism analogous (perhaps ancestral?) to nonstomatal control in angiosperms. www.biorxiv.org/content/10.1...
biorxiv.org
Evidence for active regulation of transpiration in non-stomatal plants
### Competing Interest Statement The authors have declared no competing interest.
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Institute of Microbiology and Infection @imibirmingham.bsky.social · 31/03/2025
We are in Liverpool this week at the @microbiologysociety.org Annual Conference our IMI line up today looks like this .. #Microbio25
Image shows five speakers four of which are female and one male from the Institute of Microbiology and Infection speaking today the Microbiology Society Annual Conference
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Diego A. Márquez @dmarquez.bsky.social · 01/04/2025
Sunny day in Birmingham… lunch on the grass today, and a storm tomorrow for sure 🤣
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New Phytologist @newphyt.bsky.social · 29/03/2025
'With modern communications pressing to steal my attention I try to remember to take a step back and appreciate the privilege that it is to be able to spend my time working on things that I find so interesting.' In #Profile: Lucas A. Cernusak 📖 nph.onlinelibrary.wiley.com/doi/10.1111/...
Lucas A. Cernusak
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New Phytologist @newphyt.bsky.social · 27/01/2025
📢 Deadline today! Apply to attend New Phytologist next generation scientists 2025 - a FREE meeting for early career researchers in #PlantScience. 4–7 August 2025 University of Birmingham, UK Apply now! www.newphytologist.org/nextgenevent…
Group photograph of delegates at New Phytologist next generation scientists 2024.
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New Phytologist @newphyt.bsky.social · 22/01/2025
Don't miss your opportunity to attend New Phytologist next generation scientists, the FREE meeting for early career researchers in plant science. #npnextgen 4–7 July 2025 Birmingham, UK Apply to attend by 27 January! www.newphytologist.org/nextgenevent...
People at a conference. A quotation from a New Phytologist next generation scientists delegate reads '#npnextgen really is an excellent way to meet inspiring people and broaden your outlook on science.'
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Richard Vath @rvath.bsky.social · 23/01/2025
Definitely a recommended read for any exchanger of gases working with stressed and low-flux material. This summarizes many important considerations and measurement assumptions underlying the models of stomatal conductance and other derived parameters which are implemented in gas exchange systems.
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Alice Gauthey @a-gthy.bsky.social · 15/01/2025
Very happy to see this paper out in Plant, Cell & Environment ! 🥳 We show that: ➡️ Foliar water uptake contribute to leaf water potential recovery in mangroves 🌿💧 ➡️ Tidal dynamic did not affect morning dew uptake 🌳🌊 onlinelibrary.wiley.com/doi/pdf/10.1...
Small mangrove species Aegiceris corniculatum flowering
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Diego A. Márquez @dmarquez.bsky.social · 14/01/2025
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...
Detailed representation of H2O gas exchange (left) and CO2 gas exchange (right) at the adaxial (upper) and abaxial (lower) leaf surfaces in an amphistomatous leaf. This panel illustrates the separate gas exchange processes for each leaf surface, which can be measured individually if the upper and lower cuvettes are analysed separately—though this setup is not common in commercial gas exchange systems. Stomatal, cuticle, and boundary layer resistances are depicted for both surfaces, along with the mole fractions of water vapour and CO2.
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New Phytologist @newphyt.bsky.social · 08/01/2025
New Phytologist next generation scientists 2025 takes place on 4–7 August at the University of Birmingham! Don't miss your opportunity to join this unique meeting of early career plant scientists! Apply to attend by 27 January: www.newphytologist.org/nextgenevent... #PlantScience #npnextgen
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Lawren Sack @lawrensack.bsky.social · 06/01/2025
Resolving the contrasting leaf hydraulic adaptation of C3 and C4 grasses - Alec Baird et al. - New Phytologist - nph.onlinelibrary.wiley.com/doi/full/10.... @colinplants.bsky.social @cscoffoni.bsky.social @hcochard.bsky.social @erikajedw.bsky.social
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Vinay Shukla @vinayshukla.bsky.social · 04/01/2025
Deciphering the core shunt mechanism in Arabidopsis cuticular wax biosynthesis and its role in plant environmental adaptation www.nature.com/articles/s41... #plantscience
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New Phytologist @newphyt.bsky.social · 23/12/2024
New Phytologist next generation scientists is a unique meeting organised for, and by, early career researchers. Next year's meeting takes place at the University of Birmingham, UK, on 4–7 August. Applications close on 27 January - apply now! www.newphytologist.org/nextgenevent…
Conference delegates look at posters
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Hugues Renault @huguesrenault.bsky.social · 16/12/2024
A postdoctoral position is available in the team of Gwyneth Ingram @rdplab.bsky.social as part of a collaborative project with our group @ibmp-cnrs.bsky.social #plantscience
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Sean Michaletz @seanmichaletz.bsky.social · 17/12/2024
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
Leaf water fluxes during times of high and low water availability.
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Diego A. Márquez @dmarquez.bsky.social · 06/12/2024
I just finished the amazing EMBL Hands-on Proteomics Curse! It was packed with practical sessions on sample prep, instrument demos, and bioinformatics, plus excellent theoretical insights. Huge thanks to the brilliant instructors and organisers! 🙌 #EMBLProteomics
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Altmetric @altmetric.com · 18/11/2024
We strongly suggest that academic publishers and other platforms that host research rapidly implement a Share to Bluesky button for their articles. Here's how: docs.bsky.app/docs/advance... #AcademicSky #HigherEd #Altmetrics
docs.bsky.app
Action Intent Links | Bluesky
Authors, websites, and apps can use action intent links to implement "Share on Bluesky" buttons, or similar in-app actions. Logged-in users will be directed to the corresponding action view in the Blu...
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Diego A. Márquez @dmarquez.bsky.social · 16/11/2024
My first post in BSky, let's do it about our last paper (doi.org/10.1073/pnas...). We show how vital nonstomatal control of transpiration is for maintaining high assimilation rates in plants such as maize and sorghum under increased VPD. This mechanism boosts C4 plants' water-use efficiency.
Diagram of the mechanism of nonstomatal control of transpiration as VPD increases, generating unsaturation in the substomatal cavity. The parameters in the figure are atmospheric water vapour concentration (wa), water vapour concentration on the leaf surface (ws), substomatal cavity water vapour concentration (wi), water vapour concentration at saturation (wsat), resistance to water diffusion through the plasma membrane (rp), cell wall water potential (Ψw), and cytosolic water potential (Ψc). Black dots represent cell wall fibres. The current theory suggests that aquaporins acting as transmembrane conduits close when VPD rises, increasing the resistance to water movement through the membrane of mesophyll cells (rp) and triggering unsaturation in the substomatal cavity.
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