iiinova — where your digital self keeps evolving

pem2026.bsky.social @pem2026.bsky.social · 13/07/2026

#pem2026 first session: Pr He from Peking University, Pr F Brandizzi @msubrandizzilab.bsky.social feom #MSU and Dr B Menand from @cnrsbiologie.bsky.social @cnrs.fr

020

pem2026.bsky.social @pem2026.bsky.social · 13/07/2026

#pem2026 has started in old down town of Montpellier

020

Reposted by @pem2026.bsky.social

Silvia Manrique @tank-silvia.bsky.social · 13/07/2026

@pem2026.bsky.social is starting! 🌱I work on plant reproduction, so I’m here to learn more about #PlantEnergyManagement and how it influences reproductive processes. Excited for the talks, conversations, and new perspectives to bring back to my project! #PlantReproduction #EnergyManagement

083

pem2026.bsky.social @pem2026.bsky.social · 30/03/2026

Elena Baena-Gonzalez @ox.ac.uk @biology.ox.ac.uk is an invited speaker of the next Plant Energy Meeting in Montpellier next july, she will present the role of #SnRK1 homeostatic fonctions Full program and registration pem26.cnrs.fr

042

Reposted by @pem2026.bsky.social

Takehiro A. Ozawa @tkozawa.bsky.social · 16/12/2025

Great preprint by Liu, Blanford et al. (2025) on how trehalose 6-phosphate #T6P stimulates plant cell growth via #PlantTOR and is required for sucrose-induced TOR activation in #Arabidopsis by suppressing #SnRK1 in a dose-dependent manner, thereby mediating the antagonistic TOR–SnRK1 relationship.

Fig. 3. Trehalose 6-phosphate (T6P) is required for sucrose-mediated TOR activation.
a) Exogenous T6P induces stronger TOR activation than sucrose during resupply of starved suspension cells. Starved suspension cells derived from an Arabidopsis S6K1-HA OX seedlings were resupplied with 0.5% of basal sucrose plus 100 μM sucrose or 100 μM T6P (0–2 h).
Representative immunoblots show S6K1-HA, phosphorylated S6K1-HA (pS6K1-HA), phosphorylated RPS6 (pRPS6), and RPS6 at the indicated time points. Phos-tag gels separate phospho-S6K1-HA. Ponceau S serves as loading control. Band intensities were quantified using GelAnalyzer 23.1.1 and normalized to total protein. pRPS6/RPS6 ratios (n=3) were quantified for TOR activity (Šídák's Multiple Comparisons Test: *, P < 0.05; **, P < 0.01; ***, P < 0.001).

b) Endogenous T6P is essential for TOR activation. In WT seedlings, sucrose resupply robustly activates TOR, whereas tps1 mutants show only weak activation. 3-d-old seedlings germinated on ½ MS (1% sucrose) (long-day conditions) were transferred to ½ MS liquid medium and starved for 4 d in dark. Seedlings were then resupplied with 1% sucrose ± 1 μM Torin2. Samples at 0.5–4 h. Representative immunoblots and quantified TOR activity (described as in a) are shown.

c) Modulating T6P alters sucrose-mediated TOR activation. Arabidopsis lines overexpressing otsA (encoding E. coli T6P synthase) accelerates and otsB (encoding T6P phosphatase) delays TOR activation relative to WT. 3-d-old WT, otsA and otsB seedlings germinated on ½ MS (1% sucrose) (long-day conditions) were transferred to ½ MS liquid medium and starved for 4 d in dark. Seedlings were then resupplied with 1% sucrose . Samples at 0.5–4 h. Representative immunoblots and quantified TOR activity (described as in a) are shown.

Fig. 4f. Trehalose 6-phosphate (T6P) activates Target of Rapamycin (TOR) by suppressing Sucrose non-fermenting-1-related protein kinase 1 (SnRK1).
Purified SnRK1α1 suppresses TOR activity, and T6P reverses this inhibition in a dose-dependent manner. IP-TOR incubated with SnRK1α1 alone or with GRIK1 and EIF4EBP1 substrate ± T6P (0.1–1 mM). TOR activities were quantified at right. Similar results were shown with S6K1 (Supplementary Fig. 8).

042

Reposted by @pem2026.bsky.social

Journal of Experimental Botany @jxbotany.bsky.social · 07/03/2026

🌿🔁 SPECIAL ISSUE REVIEW 🔁🌿 Crespo et al. examine the central role of the TOR kinase in linking nutrient availability to chloroplast function, detailing emerging evidence of reciprocal regulation between TOR signalling and photosynthesis in plants and algae 🧪 🔗 doi.org/10.1093/jxb/...

Fig. 1 (shortened, full legend in paper): Regulation of TOR function by chloroplast-derived metabolites. (A) Photosynthetically derived sugars exported from the chloroplast activate TOR (via phosphorylation, P) in distal plant tissues. Sugar regulation of TOR can occur via SnRK1, or potentially via other routes (dashed arrow). Notably, TOR activation by sugar in roots requires mitochondrial function. (B) DHAP, a triose phosphate product of photosynthesis, positively regulates TOR in the green alga Chlamydomonas. (C) Active TOR directly phosphorylates the ABA receptor PYL, thereby inhibiting it. ABA, whose precursors are made in the chloroplast, binds PYL. ABA-bound PYL binds and inhibits the PP2C phosphatase, activating SNRK2. Active SNRK2 directly phosphorylates the RAPTOR subunit of TOR, inhibiting TOR activity.

1249

pem2026.bsky.social @pem2026.bsky.social · 23/03/2026

Takuya Yoshida from Japan (#nibb) is a #pem26 invited speaker. He will present his work on crosstalk between ABA signaling metabolic regulation Join us in Montpellier next july With support of @pplplantarum.bsky.social @inrae-france.bsky.social @institutagro.bsky.social @umontpellier.bsky.social

021

pem2026.bsky.social @pem2026.bsky.social · 20/03/2026

The next "Plant Energy Management" meeting #pem26 is in july Join us, pem26.cnrs.fr

011

pem2026.bsky.social @pem2026.bsky.social · 20/03/2026

@franzificht.bsky.social from @hhu.de @ceplas.bsky.social is a #pem26 invited speaker. She will present her work on the role of Tre6P in carbon sensing What is Tre6p? Read her open access review in @newphyt.bsky.social nph.onlinelibrary.wiley.com/doi/10.1111/... Join us in Montpellier next luly

0126

pem2026.bsky.social @pem2026.bsky.social · 19/03/2026

@scourbier.bsky.social from @uni-freiburg.de @cibss.bsky.social is one of the invited speakers of #pem26. She will give a talk on the role of TOR in shade mediated hypocotyl elongation Join us in Montpellier next july Pem26.cnrs.fr

22710

pem2026.bsky.social @pem2026.bsky.social · 09/02/2026

Invited speakers of the next Plant Energy Mangement Meeting, 12-15 july 2026, Montpellier, France Visit our Web site, register and submit your abstract pem26.cnrs.fr @lacombeb.bsky.social @hatem-rouached.bsky.social @frannybarbs.bsky.social @msubrandizzilab.bsky.social

057

pem2026.bsky.social @pem2026.bsky.social · 16/07/2025

Save the date: "Plant Energy Management, Molecular mecanisms of growth ans stress responses" will take place in Montpellier next year july 12-15 @hatem-rouached.bsky.social @ccf-claire.bsky.social @msubrandizzilab.bsky.social @franzificht.bsky.social @lacombeb.bsky.social

1146