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Dustin Ray

@drfloeem.bsky.social
56 followers 102 following 2 posts

Dad, Plant Functional Anatomist. I also like to swim, bike, run and XC ski. I study phloem structure function and seasonality.

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Reposted by Dustin Ray
Jeremy Yoder says no war @jbyoder.org · 20/09/2026
Okay this jogged loose something I've had half-written for a while now: Despite decades of effort, scientists have still not found a substitute for reading the paper denimandtweed.jbyoder.org/2026/09/desp...
denimandtweed.jbyoder.org
Despite decades of effort, scientists have still not found a substitute for reading the paper
Science is difficult, but not for the reason you think. It’s not that conceiving a research program is difficult. It’s not that planning and performing an experiment or observational st…
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New Phytologist @newphyt.bsky.social · 27/07/2026
✨ Paper spotlight ✨ (🧵 1/3) Desiccation Tolerance Mechanisms in the Green Lineage and Beyond nph.onlinelibrary.wiley.com/doi/10.1111/...
Fig. 1 Ancient origin and recurrent evolution of desiccation tolerance in the green lineage.
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New Phytologist @newphyt.bsky.social · 08/06/2026
✨ Paper spotlight ✨ Gravity sensing in plants nph.onlinelibrary.wiley.com/doi/10.1111/... (🧵 1/6) This Tansley review explains how plants sense gravity to guide their growth. Wang et al. describe how the settling of starch-filled plastids trigger molecular signals that orient the plant.
Fig. 1 Gravitropism in vascular plants.
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AoB Plants @aobp.bsky.social · 21/05/2026
♻️Too cold or too warm? Modelling seed set and fruit mass based on the effect of temperature on pollen quality by Ana Zepeda and co-authors. Full #openaccess 👉 doi.org/10.1093/aobp... #PlantScience
doi.org
Validate User
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Edouard Machery @edouardmachery.bsky.social · 05/04/2026
You must read that thread. Science is changing quickly. (I have experienced with Claude code too. It is incredible.)
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Nature Plants @natplants.nature.com · 24/04/2026
New Editorial: "Smells like spring spirit" rdcu.be/ffaAx The return of spring is an excellent occasion to celebrate the secondary metabolites that are the basis for the wonderfully diverse aromas and tastes of plants, which are used for our culinary pleasure. #PlantScience
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Botanical Society of America @botsocamerica.bsky.social · 22/04/2026
Evaluating the African arid corridor hypothesis: A meta-analysis including the phylogenetic & biogeographical history of Sesamothamnus New #AJB research by John Zaborsky, Jeffrey Rose, Ricardo Kriebel, Bryan Drew, Emily Moriarty Lemmon, Alan Lemmon & Kenneth Sytsma doi.org/10.1002/ajb2... #botany
Distributional map of the six species of Sesamothamnus (Pedaliaceae): S. rivae, S. busseanus, S. lugardii, S. leistneri, S. guerichii, and S. benguellensis. D. Mahr provided photos of Sesamothamnus benguellensis, S. guerichii, and S. leistneri. S. Mahr provided photos of S. lugardii. D. Bell provided photos of S. busseanus. Photos of S. rivae were provided by C. Waltenberg (flower/fruit) under Wikimedia Commons and M. Olson (habit).
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Current Biology @currentbiology.bsky.social · 22/04/2026
www.cell.com/current-biol...
cell.com
Cocaine pollution alters the movement and space use of Atlantic salmon (Salmo salar) in a large natural lake
Brand et al. show that environmentally realistic benzoylecgonine exposure increases movement and dispersal of Atlantic salmon smolts in a natural lake. Exposed fish swam and dispersed farther than con...
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Chris Thorogood @christhorogood.bsky.social · 20/04/2025
Our work, just published in Plant Communications, solves the mystery of how giant waterlilies achieve such size. We deep-dived into their genomes & found a massive accumulation of cells in early development to offset production costs: like paying for bricks cheap, upfront, before building the house.
 

Giant waterlilies produce the world’s largest floating leaves. Our work, just published in Plant Communications, solves the mystery of how they achieve such dimensions at the molecular level. We deep-dived into their genomes and found a massive accumulation of cells early in leaf development. This early investment in cells enables an efficient vein transport system which offsets the costs of producing such enormous architecture. It’s like paying for your bricks cheap, upfront, before building your house.

 

https://www.cell.com/plant-communications/fulltext/S2590-3462(25)00104-X
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AoB Plants @aobp.bsky.social · 11/03/2025
♻️Development and application of an inexpensive open-source dendrometer for detecting xylem water potential and radial stem growth at high spatial and temporal resolution by Sean M Gleason and co-authors Full #openaccess 👉 doi.org/10.1093/aobp... #PlantScience
doi.org
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American Society of Plant Biologists @aspbofficial.bsky.social · 10/03/2025
#ASPBPlantPhysMonday #ICYMI
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American Society of Plant Biologists @aspbofficial.bsky.social · 10/03/2025
#ASPBPlantPhysMonday #ICYMI
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Phil Garnock-Jones @theobrominated.eurosky.social · 27/02/2025
Trialed my new home-made field system for stereo pair focus stacked close-ups yesterday. This is Wahlenbergia albomarginata for cross-eye viewing. Olympus TG-6 and all the necessary kit weighs 700g.
Small white flower with a prominent stigma in the centre of the tube.
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Marc Somssich @somssich.bsky.social · 27/02/2025
📜 Atomic force microscopy imaging of plant cell walls 🧑‍🔬 Junbao Pu, Wenjun Zhang, et al. 📔 @plantphys.bsky.social 🔗 academic.oup.com/plphys/artic... #️⃣ #PlantScience #PlantMicroscopy #PlantImaging #PlantAFM #AtomicForceMicroscopy #PlantCellWalls
academic.oup.com
Atomic force microscopy imaging of plant cell walls
A review of advancements in atomic force microscopy imaging of cell wall structure and analysis of the mechanical properties, specific binding sites, and s
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Dustin Ray @drfloeem.bsky.social · 15/01/2025
nph.onlinelibrary.wiley.com/doi/full/10....
nph.onlinelibrary.wiley.com
Tip‐to‐base bark cross‐sectional areas contribute to understanding the drivers of carbon allocation to bark and the functional roles of bark tissues
Along their lengths, stems experience different functional demands. Because bark and wood traits are usually studied at single points on stems, it remains unclear how carbon allocation changes along...
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Plant Physiology @plantphys.bsky.social · 07/01/2025
Superoxide anions induce tension wood formation by promoting cambium cell activity (Li-Chao Huang, Yu-Yu Li, Jian-Xin Lai, Yi An, Xue-Qin Song, Shu-Tang Zhao, Jin Zhang, Meng-Zhu Lu)
doi.org
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Annals of Botany @annbot.bsky.social · 02/01/2025
🔥ADVANCE ACCESS🔥: Is autophagy always a death sentence? A case study of highly selective cytoplasmic degradation during phloemogenesis
doi.org
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Owen Atkin @owenatkin.bsky.social · 09/12/2024
Super proud of Shinichi and team for examining if leaf carbohydrate concentrations correlate with structure, chemistry, and physiology traits. 114 sp, 19 sites, 5 biomes. Take home: most daily C gain is exported nph.onlinelibrary.wiley.com/doi/10.1111/...
nph.onlinelibrary.wiley.com
Leaf nonstructural carbohydrate residence time, not concentration, correlates with leaf functional traits following the leaf economic spectrum in woody plants
Nonstructural carbohydrate (NSC) concentrations might reflect the strategies described in the leaf economic spectrum (LES) due to their dependence on photosynthesis and respiration. We examined if N...
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William Curtis @william-curtis.harpo.nl · 08/12/2024
Your daily dose of botanical drawings from the Botanical Magazine. Two-colourep crane’s-bill (Pelargonium bicotor) Plate 201 in volume 6, 1793. #magazine #artist #plants #curtis #botany
Plate 201: Two-colourep crane’s-bill (Pelargonium bicotor)
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David Vinyard @vinyardlab.bsky.social · 09/12/2024
Check out this collaborative #photosynthesis work from an all star group of collaborators. Evolution happens on the lab bench and we found a surprise in a cyano mutant's Photosystem I. More cool work on this system is coming out soon! @lsubiosci.bsky.social www.science.org/doi/10.1126/...
science.org
Cryo-EM structure of a photosystem I variant containing an unusual plastoquinone derivative in its electron transfer chain
A photosystem I structure binding plastoquinone in its electron transfer chain reveals insight into photosynthesis bioenergetics.
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Brian J. Enquist @bjenquist.bsky.social · 07/12/2024
An important review - The ecology of plant extinctions - "Recent warm-edge extirpations demonstrate the growing impact of anthropogenic climate change & show that predictions of massive climate-driven extinctions later this century are plausible" www.sciencedirect.com/science/arti... 🌾🌎🧪🌐
Image of the first page and abstract of the paper "The ecology of plant extinctions
Author links open overlay panel
Richard T. Corlett 1 2

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https://doi.org/10.1016/j.tree.2024.11.007
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Highlights
The fossil record suggests that climate change was the major driver of plant extinctions and regional extirpations from the Pliocene until recently, when anthropogenic habitat loss became dominant.
Known recent plant extinctions are disproportionately few in comparison with well-studied animal taxa, but many more species are probably committed to inevitable extinction unless given targeted support.
Recent warm-edge extirpations demonstrate the growing impact of anthropogenic climate change and show that predictions of massive climate-driven extinctions later this century are plausible.
The proximate causes for population extirpations are still rarely known but are likely to be highly varied and both species and location specific."
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Seema Sheth @seemasheth.bsky.social · 05/12/2024
The structure of the environment influences the patterns and genetics of local adaptation
doi.org
The structure of the environment influences the patterns and genetics of local adaptation
Abstract. Environmental heterogeneity can lead to spatially varying selection, which can, in turn, lead to local adaptation. Population genetic models have
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AoB Plants @aobp.bsky.social · 04/12/2024
♻️Positive pressure in bamboo is generated in stems and rhizomes, not in roots by Joseph Michaud and co-authors Full #openaccess 👉 buff.ly/3XdcCrw #PlantScience
buff.ly
Positive pressure in bamboo is generated in stems and rhizomes, not in roots
Bamboos stand out among other tall plants in being able to push up water under positive pressure at night all the way to the leaves, causing drops to fall
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Silvia Caldararu🌿 @scaldararu.bsky.social · 03/12/2024
The only freedom appears to be if I do some work on Saturday or Sunday each week. I've been in a faculty position for 2 years and a bit, this is all I've known but myth says it used to be better. I'd happily try out another system.
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AoB Plants @aobp.bsky.social · 03/12/2024
🌡️🌱 New article in @aobp.bsky.social exploring how individual plants' phenological responsiveness to temperature varies across species ranges and is influenced by local climate conditions Full #openaccess 👉 buff.ly/3Z6swVz #PlantScience
Intraspecific variation in phenological temperature sensitivity across climatic gradients in MAT and IVT. Color scales are centered on the overall average baseline temperature sensitivity (−2.28 days/°C). Temperature sensitivity values are marginal estimated slopes based on the MAT and IVT of a given observation site, extracted from the global model (n = 23 220, df = 23 100, adjusted R2 = 0.817). (A) Heat map of temperature sensitivity across gradients of MAT and IVT. (B) Geographic map of estimated temperature sensitivity across the study range. Points represent geolocated species observations from iNaturalist and color value represents the estimated temperature sensitivity of plants in that location.
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Stephen Heard @stephenbheard.bsky.social · 03/12/2024
There's lots of writing advice out there. How do you know what's good advice and what's just opinionated ranting? scientistseessquirre...
scientistseessquirrel.wordpress.com
What does good writing advice look like?
“Writing Advice is a Lie”, opines Henry Oliver on Substack, with an argument that writers (of fiction mostly, I think?) should ignore all the writing advice that surrounds them on the grounds that …
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Lawren Sack @lawrensack.bsky.social · 24/11/2024
A Theoretical Framework to Quantify Ecosystem Pressure-Volume Relationships onlinelibrary.wiley.com/doi/abs/10.1...
onlinelibrary.wiley.com
A Theoretical Framework to Quantify Ecosystem Pressure‐Volume Relationships
The amount of water contained in, and available to, vegetation strongly constrains the functioning and total biomass of ecosystems. As such, there is a lot of interest in measuring, monitoring and mo...
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David Ho @davidho.bsky.social · 24/11/2024
A person on a bicycle is by far the most energy-efficient among animals and machines per distance traveled relative to body weight. The bicycle is magic. www.jstor.org/stable/24923...
A graph titled "Cost of Transport" showing the relationship between body weight (in kilograms) and energy consumption for distance traveled (calories per gram per kilometer) for various animals and machines. It highlights that a person on a bicycle ranks first in efficiency.
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Graham Coop @gcbias.bsky.social · 24/11/2024
Optimist: The cup is half full. Pessimist: The cup is half empty. Population geneticist: The cup is either a quarter full or overflowing and I can never remember whether there's a factor of two for haploids or diploids. bsky.app/profile/hutc...
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Botany One @botany.one · 18/11/2024
📝 Small Gardens Add Up to Big Climate Impact 🧵 botany.fyi/3lkhll Despite their modest size, private gardens pack a powerful punch against climate change when working together, reveals a new study of 2.4 million Flemish gardens. #Botany #PlantScience 🧪 #InBrief
botany.fyi
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Ryan @lost-in-botany.bsky.social · 20/11/2024
Tiny native #Pelargonium littorale #Geraniaceae, found throughout the southwest, this one was enjoying the protection from a large granite boulder! #WildOz
Vegetative growth of Pelargonium littorale Small pink flower of Pelargonium littorale showing the two dorsal petals and three lower petals, giving the flower a vertical plane of bilateral symmetry
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Daijiang Li @djli.bsky.social · 19/11/2024
I deleted pretty much all emails from MDPI and Frontiers.
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Susana Wadgymar🌿🔬 @smwadgymar.bsky.social · 18/11/2024
Helpful papers for trainees #1: The art of growing plants for experimental purposes: a practical guide for the plant biologist #PlantBiology #Botany 🌱 🧪
"The art of growing plants for experimental purposes: a practical guide for the plant biologist" is a research paper published in the journal "Functional Plant Biology" that provides detailed instructions and considerations for plant scientists on how to properly cultivate plants in controlled environments for research experiments, covering aspects like choosing the right plant species, managing environmental factors like light, temperature, and nutrients, and ensuring consistent growth conditions to produce reliable data.
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Molly Edwards, PhD @science-irl.bsky.social · 19/11/2024
It was a botanical dream come true to make the promo video for the @uconn.bsky.social Botanical Conservatory! Learn about their collections, meet their scientists, & take a moment for some plant appreciation 🌱💚 Hope it entices you to visit someday! youtu.be/R7CX6g1ot-I?... #scicomm #botany
youtu.be
Welcome to the UConn Botanical Conservatory
YouTube video by Biodiversity Collections - EEB, UCONN
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Timothy Martin @treephys.bsky.social · 17/11/2024
Early model Scholander-Hammel pressure chamber on display at Oregon State University.
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Peter Wich - Wichlab @peterwich.bsky.social · 08/02/2024
Beautiful 3D visualization of the three major cell wall biopolymers: cellulose, hemicelluloses, and lignin in Populus wood, offering a comprehensive view of their essential interplay. #SciComm #PlantScience #Bioengineering #Cellwall #Biopolymers #Biomacromolecules www.science.org/doi/10.1126/...
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Tom Buckley @tombuckleylab.bsky.social · 26/01/2024
They're complex because many teachers and profs love feeling like they own some special secret knowledge, and they think students should have to suffer to "earn" it. In reality photosynthesis is dead simple. We should rarely go beyond this level of detail, and always circle back to it:
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AoB Plants @aobp.bsky.social · 19/12/2023
New article in @aobp.bsky.social on xylem sap composition in Australian angiosperm trees and shrubs, revealing changes across seasons, even in the face of drought stress. Full #openaccess bit.ly/3SMDaOt
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Timothy Mainardi, MD @butterinthis.bsky.social · 12/12/2023
8 year post doc which is typical now just wasn’t for the generation above me (I’m a gen xer). Boomers moved from phd to funded faculty position so much faster. The extension of the post doc period is another huge impediment for future scientists
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Nafnlaus 🇮🇸🇪🇺🇺🇦 @nafnlaus.bsky.social · 01/12/2023
Wait, you can do this and still get published? 🧪
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Karolina Heyduk @kheyduk.bsky.social · 08/11/2023
Look at this magnificent font of ye olde Newe Phytologiste
Header of the New Phytologist (Vol. XI, No.1, January 1912) written in an awesome gothic, serif font.
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Dustin Ray @drfloeem.bsky.social · 02/11/2023
Evaluating fixatives for artifacts and shrinkage in the phloem tissue. I can’t do much, but I can still make a decent section.
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Mike Wiser @drmikewiser.bsky.social · 28/10/2023
A colleague not on Bluesky alerted me to a TT Microbiology position at Eastern Michigan University, so I figured I'd pass the info along: careers.emich.edu/jobs/6b7c192...
careers.emich.edu
Assistant Professor (Microbiology) - Ypsilanti, Michigan, United States
Title: Assistant Professor (Microbiology) Employee Classification: FA - Faculty 16 and 24 Pay Pay Grade: FA 01 Division: Academic and Student Affairs Department: College of Arts and Sciences Campus Lo...
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Randall Munroe @xkcd.com · 28/10/2023
Dendrochronology xkcd.com/2847
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