SEBiology

@sebiology.bsky.social

The Society for Experimental Biology aims to promote, and increase the influence of Experimental Biology within the scientific community and Society.
www.sebiology.org

@jxbotany.bsky.social Oct 8, 2026, 12:41 PMReposted by @sebiology.bsky.social

🌿🔬 REVIEW 🔬🌿

The physiological roles of cysteine-dependent processes and enzymes in photosynthetic organisms are reviewed, with emphasis on cysteine desulfhydrases - Moseler et al.

🔗 doi.org/10.1093/jxb/...

#PlantScience 🧪

Fig. 4.DES1 is a primary player in the regulation of stomatal movement. ABA promotes the (auto) persulfidation of Cys44 and Cys250 of DES1 (1). Using L-cysteine as substrate, DES1 catalyzes the release of hydrogen sulfide (H2S) (2) that induces the persulfidation of SnRK2.6 (Cys131 and 137), RBOHD (Cys825 and 890) and ABI4 (Cys250) (3). As persulfidated form, ABI4 favors the expression of DES1 that is positively regulated by ABA (4). In addition to DES1, cysteine is also the substrate of the cysteine desulfurase ABA3 that allows molybdenum cofactor insertion into aldehyde oxidases required for ABA synthesis (5).

@jxbotany.bsky.social Oct 8, 2026, 3:39 PMReposted by @sebiology.bsky.social

🌱 "The Many Faces of Auxin: From Molecular Mechanisms to Morphogenesis" is now open! 🌱

This special issue is linked to #Auxin2026 and edited by Dior Kelley, Lars Østergaard & Andrea Gallavotti 📝

📅 Deadline 30 Nov 2026

Got a manuscript? Contact the JXB office: bit.ly/JXBissues
#PlantScience 🧪

Front cover of a postcard to advertise an upcoming special issue of the Journal of Experimental Botany titled 'The Many Faces of Auxin: From Molecular Mechanisms to Morphogenesis'. The editors are Dior Kelley, Lars Østergaard & Andrea Gallavotti. The image shows icons such as Arabidopsis, an auxin molecule, a ship, a microscope etc in the style of blue and white Portuguese tiles. Image by Anna Wójcik, University of Silesia, Poland.

@sebiology.bsky.social Oct 8, 2026, 8:06 AM

More science stories await! 🔬

Discover SEB’s #LivingBiology podcast, with fascinating stories and conversations from scientists.

🎧 Listen on all major podcast services:
urls.fr/CEMR4J

#SEBScienceStories

@sebiology.bsky.social Oct 8, 2026, 8:06 AM

How far would you go to save your research? 🧬

For the @rsb.org.uk ’s #BiologyWeek, discover Dr Lucy Hawkes’ unexpected rescue mission, brought to life in animation! 🎬

More information:
🎧 urls.fr/pyjv-Z

@jxbotany.bsky.social Oct 7, 2026, 12:45 PMReposted by @sebiology.bsky.social

🍇 RESEARCH 🍇

Sulfur deficiency in grapevines induces nitrogen overflow and reduces water use efficiency. While simultaneous low nitrogen alleviates this deficiency, additive effects occur, highlighting the critical sulfur–nitrogen balance - Lehr et al.

🔗 doi.org/10.1093/jxb/...
#PlantScience 🧪

Graphical Abstract (shortened, full abstract in paper):
Sulfur is an essential macronutrient, yet its role in grapevine (Vitis vinifera L.) physiology is poorly understood. Following reduced atmospheric sulfur deposition, sulfur fertilization is increasingly required to prevent deficiencies, which are difficult to diagnose before they impair grapevine—and subsequent wine—quality. Therefore, the metabolic responses of grapevines to isolated and combined sulfur and nitrogen deficiencies were investigated. Using a non-targeted metabolomics and ionomics approach under controlled sulfur and nitrogen supplies, it was shown that isolated sulfur deficiency led to a massive accumulation of nitrogen-rich amino acids and activation of the gamma-aminobutyric acid shunt.

@sebiology.bsky.social Oct 7, 2026, 12:31 PM

⏰ Last chance to join the SEB Mentoring Scheme 2027!

Our briefing sessions start TOMORROW, 8 October.

Discover how mentoring can support your development, build connections and share experience.

📅 8 or 9 October

More information:
www.sebiology.org/resource/joi...

@conphysjournal.bsky.social Oct 6, 2026, 2:55 PMReposted by @sebiology.bsky.social

Energy underpins survival and reproduction but is difficult to measure in free-ranging animals. This study used #BioLogging to determine how energy needs are affected by reproductive condition in Krefft’s glider.

Read it here ➡️ doi.org/10.1093/conp...

@jxbotany.bsky.social Oct 6, 2026, 4:51 PMReposted by @sebiology.bsky.social

🚨 SPECIAL ISSUE - CLOSING SOON 🚨

🔬 Reactive Species in Plants

📝 Edited by Francisco J. Corpas, José M. Palma, Rosa Rivero & Ann Cuypers

📅 Closing date: 31 October

📇 Got a suitable manuscript? Contact the JXB office: bit.ly/JXBissues

#PlantScience 🧪 #JXBspecialissues

Front cover of a postcard to advertise an upcoming special issue of the Journal of Experimental Botany titled 'Reactive Species in Plants'. The editors are Francisco J. Corpas, José M. Palma, Rosa Rivero & Ann Cuypers. The image shows involvement of ROS, RNS, and other signaling and bioactive molecules in regulating plant physiological processes and responses to adverse environmental conditions. Image by Francisco J. Corpas & José M. Palma.

@jxbotany.bsky.social Oct 5, 2026, 4:07 PMReposted by @sebiology.bsky.social

🛡️ REVIEW 🛡️

This review underscores the key role of H2S in enhancing plant resilience against abiotic stress prevalent in the current climate change scenario. Endogenous sources of H2S and its mechanisms of action are also discussed- Aroca et al.

🔗 doi.org/10.1093/jxb/...
#PlantScience 🧪

Fig. 3.Hydrogen sulfide (H2S) signaling pathways in plants. The diagram highlights three initially proposed mechanisms by which H2S mediates its biological effects: (i) protein persulfidation, (ii) metal binding interactions involving zinc (Zn) and iron (Fe), and (iii) reducing oxidative stress by targeting reactive oxygen and nitrogen species, including superoxide radical (O2•⁻), peroxide ion (O22⁻), hydroxyl radical (•OH), and nitric oxide (NO). Created in BioRender. Romero, L. (2026) https://BioRender.com/mehykp9.

@sebiology.bsky.social Oct 6, 2026, 9:47 AM

⏰ Just 2 weeks to go!

Join @conphysjournal.bsky.social’s "Community Conversations" on 20 October, featuring Dr @madisonearhart.bsky.social on how physiology, molecular biology and community science can support white sturgeon conservation.

Book now for this free webinar:
urls.fr/iy4_sD

@sebiology.bsky.social Oct 6, 2026, 8:55 AM

The deadline is coming soon ! Do not miss this incredible opportunity

@jxbotany.bsky.social Oct 6, 2026, 8:23 AMReposted by @sebiology.bsky.social

🌱🔬 REVIEW 🔬🌱

This review focuses on two families of genes described as sulfur deficiency markers, SDI and LSU, and describes different strategies plant utilize to cope with sulfur shortage - Sirko et al.

🔗 doi.org/10.1093/jxb/...

#PlantScience 🧪

Fig. 2.LSU proteins as regulatory hubs of stress and metabolism in plants. LSU protein partners from various metabolic pathways are shown. Abbreviations: ABA, abscisic acid; ACO2, ACC Oxidase; APR, APS Reductase; ATPS, ATP Sulfurylase; CAT, catalase; FSD2, Fe Superoxide Dismutase 2; GAPC1, Glyceraldehyde-3-Phosphate Dehydrogenase C Subunit; JA, jasmonic acid; JAZ, Jasmonate-Zim Domain; LSU, Response to Low Sulfur; NBR1, Neighbor of BRCA1 gene 1; NPR4, Nonexpresser of PR Genes 4; PYL9, Pyrabactin Resistance 1-Like 9; RAF2/SDIRIP1, Rubisco Assembly Factor 2, also known as SDIR1-Interacting Protein 1; ROS, reactive oxygen species; SA, salicylic acid; SiR, Sulfite Reductase.

@sebiology.bsky.social Oct 5, 2026, 9:45 AM

Do not miss the deadline !

@sebiology.bsky.social Oct 5, 2026, 9:44 AM

Only a few days to go!

Join the SEB Mentoring Scheme 2027 briefing on 8 or 9 October.

Discover how mentoring can support your development, build connections and share experience. Free for SEB members.

Book your place now
www.sebiology.org/events/ems-e...

@jxbotany.bsky.social Oct 2, 2026, 10:47 AMReposted by @sebiology.bsky.social

🌾🛡️ RESEARCH 🛡️🌾

TaR3H interacts with Pm21CC, and the interaction is enhanced upon pathogen infection, positively regulating disease resistance through hormone signaling pathways - Si et al.

🔗 doi.org/10.1093/jxb/...

#PlantScience 🧪

Fig. 1.Physical interactions between TaR3H and Pm21 by yeast two-hybrid assay. (A) The interaction assays between TaR3H and Pm21FL or five truncated Pm21 fragments (CC, NBS, LRR, CC-NBS, and NBS-LRR). (B) The interaction assays between Pm21CC and TaR3H or five truncated TaR3H fragments (P1, R3H associated, P3, R3H domain, and P5). The original plasmids are the Gal4 DNA-binding domain vector (pGBKT7) and the Gal4 activation domain vector (pGADT7). All constructs were subsequently pairwise co-transformed into the yeast strain AH109 for protein interaction studies. Positive control: pGADT7-largeT+pGBKT7-53; negative control: pGADT7-largeT+pGBKT7-Lam. Yeast transformants were grown on selective media: SD/-TL (lacking tryptophan and leucine), SD/-TLH (lacking tryptophan, leucine, and histidine), and SD/-TLHA (lacking tryptophan, leucine, histidine, and adenine, with or without X-α-gal).

@rgleadow.bsky.social Oct 2, 2026, 1:16 AMReposted by @sebiology.bsky.social

#PlantSciJobs #postdoc #PlantEcophysiology (yay!)
🌱🪴🍀🌲🌳🌾

@jxbotany.bsky.social Oct 1, 2026, 7:07 PMReposted by @sebiology.bsky.social

🌻💧 RESEARCH 💧🌻

Failure of the water-transporting system during drought stress was not reversed during recovery in sunflower, which challenges previous evidence and highlights the need to revisit similar assumptions in other species - Stewart et al.

🔗 doi.org/10.1093/jxb/...

#PlantScience 🧪

Fig. 3.Xylem embolism within a sunflower plant during drought stress and well-watered recovery. (A, B) Photographic images of a sunflower plant while stressed (i.e. at the end of the dry down) (A) and after 1 week of recovery under well-watered conditions (B). (C–E) Micro-computed tomographic images of xylem embolism (highlighted within the outlined tissues) in the stem, petioles (Pet.), and leaf midribs when the plant was subjected to drought stress (ΨStem of −1.23 MPa) (C), re-watered and allowed to recover overnight (D), and allowed to recover for 1 week (E). The arrows in (A, B) indicate the approximate locations of scanned tissue. For images without annotated features, see Supplementary Fig. S7. For (C–E), scale bar is 1 mm.

@sebiology.bsky.social Oct 1, 2026, 7:52 AM

📢 OUTREACH, EDUCATION & DIVERSITY: Last chance to propose a session for #SEBConference Glasgow 2027!

Share your ideas on public engagement, inclusive education and diversity in science.

⏰ Deadline: 1 October!

More info:
www.sebiology.org/special-inte...

@sebiology.bsky.social Oct 1, 2026, 7:52 AM

🌱 PLANT BIOLOGY: Final hours to submit your session proposal for #SEBConference Glasgow 2027!

Whether your research focuses on photosynthesis, plant development or climate change, we want to hear your ideas!

More info:
www.sebiology.org/membership/s...

@sebiology.bsky.social Oct 1, 2026, 7:52 AM

🔬 CELL BIOLOGY: The clock is ticking! Only hours remain to propose a session for #SEBConference Glasgow 2027.

From emerging technologies to synthetic biology, bring your ideas to the conference!

More info:
www.sebiology.org/membership/s...

Older posts