#Strigolactone
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jxbotany.bsky.social
🌱🧬 RESEARCH 🧬🌱

CKX3/5 and SCL28 modulate rosette branching in Arabidopsis via up-regulation of strigolactone biosynthesis genes, but regulate flowering time independently of AtD14 - Luo et al.

🔗 doi.org/10.1093/jxb/...

#PlantScience 🧪
Fig. 7.A simplified working model for SCL28 and CKX3/5 regulating Arabidopsis rosette branching through the strigolactone (SL) pathway. CKX3/5 negatively regulates meristem size and activity (Werner et al., 2003; Bartrina et al., 2011), therefore, mutation of CKX3/5 increases cytokinin (CK) and auxin levels in the shoot apex. Auxin might increase the SL content at the axillary meristem region, resulting in suppression of rosette branching. SCL28 might suppress the expression of CCA1, which has been shown to up-regulate SL biosynthesis genes and subsequently suppress tillering (branching) in rice (Wang et al., 2020a). Dashed lines and question marks represent assumptions that require additional evidence. Solid lines represent evidence from this study and other published studies.
October 28, 2026 at 3:00 PM
theplantjournal.bsky.social
𝐑𝐞𝐬𝐞𝐚𝐫𝐜𝐡 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭🌟
by Brian C Mooney

🧬🌱 What can an ancestral protein reveal about the evolution of plant hormone signalling?

Find the highlight here 👉 doi.org/10.1111/tpj.71189
Original research by Tuckey et al. 👉 doi.org/10.1111/tpj.71113.
Lessons from the past: resurrecting an ancestral strigolactone receptor
Click on the article title to read more.
doi.org
October 30, 2026 at 4:56 PM
solyclior.bsky.social
Excited to share our new paper in BMC Plant Biology! 🥬

We show that strigolactone (SL) biosynthesis influences not only the progression of leaf senescence, but also how leaves respond to prolonged darkness, revealing a new layer of SL regulation of senescence.

doi.org/10.1186/s128...
Loss of MAX1 redirects, rather than delays, the leaf senescence program in lettuce - BMC Plant Biology
Background Strigolactones (SLs) regulate diverse aspects of plant development and have been implicated in promoting leaf senescence. However, senescence phenotypes associated with SL deficiency have n...
doi.org
October 21, 2026 at 10:06 AM
mplantpcom.bsky.social
Emerging Paradigms in Strigolactone Biosynthesis, Signaling, and Evolutionary Dynamics #review #PlantCommuinications cell.com/plant-commun...
October 13, 2026 at 6:53 AM
choukri.bsky.social
Glad to share our first paper from the first chapter of my Phd about Arabidopsis thaliana interaction with parasitic plant Phelipanche ramosa, which identified glucosinolate as main active pathway but under strigolactone negative regulation : for more 👉 academic.oup.com/plcell/advan...
Arabidopsis thaliana triggers Phelipanche ramosa germination via isothiocyanates under negative strigolactone regulation
Abstract. Parasitic weeds are major agricultural threats through fine-tuned chemical interactions with their hosts. We investigated the germination-stimula
academic.oup.com
October 12, 2026 at 2:41 PM
natprodreports.rsc.org
🔓Be sure to read this #OpenAccess Review from Marco Masi et al. at the University of Naples Federico II in our latest issue focused on non-strigolactone natural products and their potential to interfere with parasitic weed development #natprod #secmet

Find in full here🔽
doi.org/10.1039/d5np...
October 12, 2026 at 10:30 AM
behavecolpapers.bsky.social
ICYMI: pH-responsive manganese carboxymethyl chitosan hydrogel releases pesticide to promote rice tillering and suppress root-parasitic weeds @natcomms.nature.com
pH-responsive manganese carboxymethyl chitosan hydrogel releases pesticide to promote rice tillering and suppress root-parasitic weeds
Nature Communications, Published online: 09 October 2026; doi:10.1038/s41467-026-78320-3Parasitic weeds can threaten crop production. Here the authors describe a pH-responsive hydrogel that releases a strigolactone inhibitor to promote rice tillering and suppress parasitic weed germination.
dlvr.it
October 10, 2026 at 4:30 PM
annbot.bsky.social
🎉🆕📰🎉: Strigolactone enhances aluminium tolerance in rice (Oryza sativa L.) by modulating nitric oxide production and cell wall aluminium sequestration
doi.org/10.1093/aob/...
Validate User
doi.org
October 9, 2026 at 9:04 PM
behavecolpapers.bsky.social
pH-responsive manganese carboxymethyl chitosan hydrogel releases pesticide to promote rice tillering and suppress root-parasitic weeds @natcomms.nature.com
pH-responsive manganese carboxymethyl chitosan hydrogel releases pesticide to promote rice tillering and suppress root-parasitic weeds
Nature Communications, Published online: 09 October 2026; doi:10.1038/s41467-026-78320-3Parasitic weeds can threaten crop production. Here the authors describe a pH-responsive hydrogel that releases a strigolactone inhibitor to promote rice tillering and suppress parasitic weed germination.
dlvr.it
October 9, 2026 at 9:28 AM
biorxiv-microbiol.bsky.social
A broadly conserved phytoplasma α/β-hydrolase effector, SGP-7, is a catalytically active esterase that hydrolyses strigolactone analogues and alters shoot architecture https://www.biorxiv.org/content/10.64898/2026.10.05.756913v1
October 7, 2026 at 2:19 AM
biorxivpreprint.bsky.social
A broadly conserved phytoplasma α/β-hydrolase effector, SGP-7, is a catalytically active esterase that hydrolyses strigolactone analogues and alters shoot architecture https://www.biorxiv.org/content/10.64898/2026.10.05.756913v1
October 7, 2026 at 2:19 AM
choukri.bsky.social
Kick-off of Strigolactone congress in #Paris by introducing an overview of canonical SL biosynthesis in Pisum sativum #plantscienec
October 5, 2026 at 8:35 AM
mplantpcom.bsky.social
A non-canonical DWARF3–OsCOX11-mediated mitochondrial ROS homeostasis pathway acts in parallel with core strigolactone signaling to promote rice blast resistance #research #MolecularPlant cell.com/molecular-pl...
September 24, 2026 at 2:54 AM
theinnovation.bsky.social
This commentary reviews two landmark Cell studies, illustrating the novel mechanisms of strigolactone signaling and apoplastic alkalinization in immune amplification and propagation, providing new insights for high-yield and disease-resistant crop breeding.
doi.org/10.59717/j.x...
#cropbreeding
September 19, 2026 at 4:44 AM
rridrobot.bsky.social
RRIDs were included in this in The Plant Journal paper. RRIDs improve reproducibility in scientific research. #RRID #ReproducibleResearch #STMpublishing
In vitro dynamic and quantitative monitoring of strigolactone‐signaling complex formation by time‐resolved FRET
Read the full paper: In vitro dynamic and quantitative monitoring of strigolactone‐signaling complex formation by time‐resolved FRET
doi.org
September 18, 2026 at 7:02 AM
plant-sci.bsky.social
🌽🧬 Strigolactone shapes primary maize ears, ethylene limits secondary ones. Targeting these pathways synchronized ear development and raised yield over 20%.

A breeding opportunity. #plantscience @aspbofficial.bsky.social @theplantcell.bsky.social academic.oup.com/plcell/advan...
Transcriptional and phytohormonal regulation of positional ear development reveals yield strategies in maize
Abstract. Maize (Zea mays L.) is a vital global crop, contributing ∼37% of annual grain production. Enhancing yield per unit area is crucial for food secur
academic.oup.com
September 16, 2026 at 9:00 AM
andytuckey.bsky.social
Very excited to share my new publication in The Plant Journal!

Some of you may know that Jurassic Park is what attracted me to molecular biology from a young age, so being able to work with an enzyme 'resurrected' from the Devonian is very cool.

doi.org/10.1111/tpj.71113Digital
#PlantScience
Structural and functional characterisation of a reconstructed ancestral strigolactone receptor
Ancestral sequence reconstruction of the strigolactone receptor DWARF14 (D14) reveals that its substrate specificity and signalling mechanism have remained largely conserved in seed plants. Ancestral....
onlinelibrary.wiley.com
September 15, 2026 at 1:45 PM
plant-sci.bsky.social
🌽🧬 Maize ears follow position-specific hormone programs. Strigolactone drives primary ears; ethylene arrests later ones.

Blocking ethylene or using SL inhibitors boosted yield over 20%. #plantscience @theplantcell.bsky.social @aspbofficial.bsky.social academic.oup.com/plcell/advan...
Transcriptional and phytohormonal regulation of positional ear development reveals yield strategies in maize
Abstract. Maize (Zea mays L.) is a vital global crop, contributing ∼37% of annual grain production. Enhancing yield per unit area is crucial for food secur
academic.oup.com
September 10, 2026 at 8:33 AM
solyclior.bsky.social
Lettuce is harvested before flowering, so we asked: could we manipulate strigolactone biosynthesis to delay leaf senescence without causing unwanted branching? That was the motivation for starting this study, but we discovered much more along the way. doi.org/10.64898/202...
August 29, 2026 at 3:29 PM
shabeklab.bsky.social
🔥check out our latest @jxbotany.bsky.social:
From signalling to catabolism: terminal tails in plant hormone regulation.

Hormone catabolism is no passive cleanup, but highly regulated. How do structural plasticity & the ubiquitin system tune hormone deactivation? academic.oup.com/jxb/article/...
From signalling to catabolism: terminal tails in plant hormone regulation
Hormone catabolism is emerging as an active layer of plant signalling, with strigolactone and salicylic acid pathways showing how terminal protein regions
academic.oup.com
August 20, 2026 at 3:47 PM
christianhauck.bsky.social
Just found @parasiticplants.bsky.social here on Bluesky.

More than 35 years ago, I discovered Sogolactone. Been a long long time.
Chemical structure of sorgolactone, a strigolactone isolated from Sorghum root exudates.
May 28, 2025 at 2:03 PM
phytobiomesjournal.bsky.social
In Western France, rapeseed fields with reduced Phelipanche ramosa parasitism showed fungal-driven suppression. Suppressive soils hinder attachment and induce necrosis, with Berkeleyomyces linked to the effect. Lisa Martinez et al. highlight potential control strategies. doi.org/10.1094/PBIO...
Influence of soil extracts on the stimulatory effect on broomrape seeds. A, Relative germination ratios of broomrape seeds in presence of the conducive (CN) or suppressive (SN) soil extracts, either unfiltered or 0.22-µm-filtered at 101- or 102-fold dilutions, and in the presence, or not, of gluconasturtiin (10−6 M). Ratios are expressed as the number of germinated seeds on total seeds relative to the average ratio obtained with the positive control rac-GR24 (10−7 M), a synthetic strigolactone giving a positive germination ratio of 1 ≈ 65.20 ± 6.32% (median ± sd). B, Relative prehaustorium formation ratio of broomrape seeds in presence of the CN or SN soil extracts either 0.22-µm-filtered or unfiltered and at 101 or 102 dilutions. Ratios are expressed as the number of germinated seeds presenting prehaustoria on total germinated seeds relative to the average ratio obtained with the positive control TDZ (10−8 M), a synthetic analog of cytokinin, giving a positive prehaustorium formation ratio of 1 ≈ 95.33 ± 5.33% (median ± sd). Significance was determined using a nonparametric Kruskal-Wallis rank test and Dunn's Kruskal-Wallis multiple comparisons (P ≤ 0.05) and is indicated with different letters.
January 7, 2025 at 7:39 PM
cellbionews.bsky.social
#Sorghum's resistance to #Striga: Two key #genes fight against #crop #parasites.

#parasites #strigolactone #transporters #hormones #SbSLT1 #SbSLT2 #AI

phys.org/news/2025-02...
Sorghum's resistance to Striga: Two key genes fight against crop parasites
Chinese scientists have identified two key genes responsible for sorghum's resistance to Striga, a parasitic plant that causes significant crop losses. The breakthrough, which also highlights the pote...
phys.org
February 12, 2025 at 4:44 PM
plantcellphysiol.bsky.social
Rooting for your enemy...

Homma et al. identified tandem gene duplication as a driver for the molecular evolution of cowpea-emitted orobanchol, which acts as a noncanonical #strigolactone with weak germination-inducing activity for root parasitic #Striga gesnerioides weeds

doi.org/10.1093/pcp/...
Schematic diagram showing SL biosynthetic pathways. CL, a common precursor of SLs, is synthesized from all-trans-β-carotene through sequential reactions catalyzed by D27, CCD7, and CCD8. The CYP711A family enzymes convert CL to CLA, and subsequent BC-ring formation of CLA leads to canonical SLs. These are classified into strigol-type and orobanchol-type SLs based on the stereochemistry of the C ring. Noncanonical SLs, characterized by an incomplete ABC-ring system, are believed to be synthesized from CL, CLA, or MeCLA without BC-ring formation. In cowpea, VuCYP711A converts CL to CLA (Wakabayashi et al. 2019), which is further oxidized to 18-oxo-CLA by VuCYP722C. VuSRF stereoselectively converts 18-oxo-CLA to orobanchol (M. Homma et al. 2024a), which is acetylated to orobanchyl acetate by VuOAT (M. Homma et al. 2024b). In addition, VuSRF-like, a paralog of VuSRF, converts 18-oxo-CLA to a novel noncanonical SL, orobanchonoic acid, via orobanchol. Figure taken from Masato Homma, Reo Abe, Kiyono Uchida, Takatoshi Wakabayashi, Atsushi Okazawa, Masaharu Mizutani, Hirosato Takikawa, Yukihiro Sugimoto, Tandem gene duplication drives the molecular evolution of orobanchol into a novel noncanonical strigolactone with weak germination-inducing activity toward root parasitic weeds in cowpea, Plant and Cell Physiology, Volume 67, Issue 4, April 2026, Pages 490–503, https://doi.org/10.1093/pcp/pcaf048
June 2, 2026 at 11:16 AM
plantcellphysiol.bsky.social
Stress hub...🤯

Korek et al. characterised the #strigolactone repressor HvD53A in #barley, providing evidence for its role as a central node connecting SL signalling to stress resilience - at the expense of #photosynthesis

📖 doi.org/10.1093/pcp/...

👩‍🔬 academic.oup.com/pcp/pages/re...

#PlantScience
November 12, 2025 at 1:18 PM