David Hoey
@davidjhoey.bsky.social
300 followers 410 following 15 posts
Postdoc in Molecular Palaeobotany and Evolution Group @ Uni of Edinburgh. Working on bryophytes and lycophytes, interested in environmental signalling and evolutionary transitions. 🌱🍀🏴󠁧󠁢󠁳󠁣󠁴󠁿
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Reposted by David Hoey
hee-kyung-ahn.bsky.social
Congrats to Menke Zhou in Halliday lab! @instmolplantsci.bsky.social
biorxiv-plants.bsky.social
PHYTOCHROME INTERACTING FACTOR 7 moderates the activity and the cytosolic-nuclear shuttling of PHYTOCHROME A https://www.biorxiv.org/content/10.1101/2025.10.07.680213v1
Reposted by David Hoey
spitewinter.bsky.social
#plants #botany #gardening #art 🌱

Dryopteris filix-mas syn. Aspidium - Male/Basket/Shield Fern.

I haven't paid much attention to ferns in the past. Here's a green, graceful example common to the N. Hemisphere. Likes the damp, shady places that need some life.

RHS:
www.rhs.org.uk/plants/11446...
davidjhoey.bsky.social
wonderful work Pierre-Marc, Mélanie & colleagues!
Reposted by David Hoey
paszkowskilab.bsky.social
It's been a busy time in the Paszkowski lab!

First, a pre-print on how rice distinguishes friend (AM fungi)🍄 from foe (pathogens)👾: doi.org/10.1101/2025...

And second, a review on single-cell omic approaches to understand the spatially and temporally complex AM symbiosis 🔬: doi.org/10.1093/jxb/...
Defining the pre-symbiotic transcriptional landscape of rice roots
Plants interact with a plethora of organisms in the rhizosphere, with outcomes that range from detrimental to beneficial. Arbuscular mycorrhizal (AM) symbiosis is the most ubiquitous beneficial plant ...
doi.org
Reposted by David Hoey
zoenahas.bsky.social
Check out the link below for a summary of our recent paper on how plants coordinate their branching architecture, via @slcuplants.bsky.social 🌱
slcuplants.bsky.social
🌱From Bud to Branch🌱
New model reveals how local & systemic signals combine to regulate shoot branching.
"...by modulating #auxin transport, local #BRC1 expression in each bud could contribute to the systemic control of branching." @zoenahas.bsky.social
🔗 dx.plos.org/10.1371/jour...
@plosbiology.org
Axillary buds are located at the base of each leaf. Initially dormant, each can grow into a branch. To study how branching is regulated by local signalling within each bud and by systemic signalling from other buds, we used stem sections with two axillary buds and their associated leaves (left). This signalling network influences, for example, whether one bud grows and rapidly inhibits the other (middle), or whether both buds grow simultaneously (right).
Reposted by David Hoey
scinews.bsky.social
7. How to write consistently boring scientific literature.

“Hell – is sitting on a hot stone reading your own scientific publications”
Erik Ursin, fish biologist

Thanks @fattebertj.bsky.social

Open Access
nsojournals.onlinelibrary.wiley.com/doi/epdf/10....
Reposted by David Hoey
jxbotany.bsky.social
⏰🌼 RESEARCH ⏰🌼

ABA and GIGANTEA signalling promote FLOWERING LOCUS T (FT) transcriptional activation by regulating the binding of the transcription factor CONSTANS to the proximal FT promoter - Robustelli Test & Perrella et al.

🔗 doi.org/10.1093/jxb/...

#PlantScience 🧪
Fig. 6 (shortened, full legend in paper): ABA signalling and GI act together to promoter CO recruitment to the FT promoter and regulate flowering time. (A) Boxplot of flowering time of the indicated genotypes and isogenic lines derived from the introgression of SUC2::HA:CO transgenes into aba1-6 or gi mutant backgrounds. Note that for the SUC2::HA:CO aba1-6 gi-100 combination, two sibling lines were analysed. An ANOVA test to assess the impact of mutations at the ABA1 and GI loci on leaf number at bolting was run separately for transgenic (SUC2::HA:CO) and control plants (vertical bar). For both groups, genotype was a statistically significant predictor of leaf number at bolting (P < 0.001). Letters at the top of boxplots indicate if genotypes showed statistically significant differences (P < 0.05) according to a Tukey post-hoc test. The number of samples analysed for each genotype is shown at the bottom of the graph.
davidjhoey.bsky.social
BioRxiv subject alerts are usually at least 6 months ahead of journal contents pages!
Reposted by David Hoey
newphyt.bsky.social
✨ Paper spotlight ✨

(🧵 1/6) Light signal transduction in plants: insights from phytochrome nuclear translocation and photobody formation
nph.onlinelibrary.wiley.com/doi/10.1111/...
Fig. 3 Model of phyA and phyB nuclear translocation.
Reposted by David Hoey
sandyheth.bsky.social
Our recent paper @newphyt.bsky.social @anajusagasti.bsky.social @instmolplantsci.bsky.social is featured today in the Sunday Post!
Thanks Sally McDonald for your piece helping to promote and communicate Scotland’s rich fossil heritage
nph.onlinelibrary.wiley.com/doi/10.1111/...
Page 11 of the Sunday Post. With story 'Fossil find is modern-day Jurassic spark'. The title image is of dinosaurs and below is an image of fossil wood, and a photograph of Anajú Sagasti and Sandy Hetherington
Reposted by David Hoey
jxbotany.bsky.social
🌱 Next up is David Hoey (University of Edinburgh) presenting:
“Phosphate starvation signalling was co-opted by plants for the evolution of vasculature” 🌿

#JXB75 #PlantScience 🧪 @davidjhoey.bsky.social
David Hoey (University of Edinburgh) presenting a slide showing that the acquisition of vasculature was a key innovation in land plant evolution. His talk is on how phosphate starvation signalling was co-opted by plants for the evolution of vasculature.
Reposted by David Hoey
nickdesnoyer.bsky.social
Friday Flower 004: Hibiscus trionum 🌺✨

Hibiscus trionum displays a dark bullseye in the center that acts as a landing pad for pollinators 🎯

The bullseye is made by a developmental boundary delineating distinct cell shapes and pigments.
Reposted by David Hoey
Reposted by David Hoey
dolfweijers.bsky.social
Recently, both our team and the Richardson/Estelle/Strader teams showed that ARF transcription factors are actively degraded. In this new preprint, Martijn de Roij explores the requirements and relevance of ARF degradation (1/7)
biorxiv-plants.bsky.social
Diversification of functional requirements for proteolysis of Auxin Response Factors https://www.biorxiv.org/content/10.1101/2025.09.03.673984v1
Reposted by David Hoey
nickdesnoyer.bsky.social
1 month of liverwort growth in 12 seconds.

The thallus of Marchantia polymorpha grows slow and steady, creeping over its substrate.