Lmst

The #ClimateCrisis means that WUE is crucial for #plants.
Zhou et al. report that DSD1/ZmICEb regulates #stomatal #development and drought tolerance in #maize, creating a promising target for #genetic improvement.
https://doi.org/10.1111/jipb.13890
@wileyplantsci
#JIPB #agriculture #botany

Photograph of WT (drought sensitive) and dsd1 mutant (drought tolerant) maize plants, and diagrams of their corresponding epidermal surfaces, showing more stomata and fewer stomata, respectively.

#Free to read!🔓⬇️
This #JIPB commentary explores a groundbreaking discovery that changed what we know about the #molecular mechanisms of #stomatal regulation--opening up new avenues for enhancing #plant stress resilience
https://doi.org/10.1111/jipb.13886
@wileyplantsci
#PlantSci #JIPB #botany

Diagram of a closed stomatal guard with an inset enlargement to illustrate the mechanism by which cell hydrogen sulfide (H2S) modulates guard cell function by inhibiting inward-rectifying potassium channels through protein persulfidation.

💋Fewer stomata = improved WUE!☘️
Zhou et al. report that DSD1/ZmICEb regulates #stomatal #development and drought tolerance in #maize, providing a promising target for the #genetic improvement of this valuable #crop #plant!
https://doi.org/10.1111/jipb.13890
@wileyplantsci
#PlantSci #JIPB #botany #OpenAccess

A new #JIPB commentary explores the groundbreaking discovery that changed how we think about the #molecular mechanisms of #stomatal regulation--opening new avenues for enhancing plant stress resilience!
And it's FREE!
🔓⬇️
https://doi.org/10.1111/jipb.13886
@wileyplantsci
#PlantSci #JIPB #botany

Cruciferous #plants' pungent defense mechanism: How repurposed #stomatal #genes also fend off #herbivores.

#evolution #Brassicales #FAMA #myrosin_cells #WASABI_MAKER #SCAP1

https://phys.org/news/2025-03-cruciferous-pungent-defense-mechanism-repurposed.html

As a signaling molecule, hydrogen sulfide is vital for #stomatal closure. In this #FreeAccess Brief Communication, Liu et al. show that H2S induces persulfidation of the C-terminus of the KAT1 subunit in #Arabidopsis, likely disrupting its oligomerization and inhibiting inward K+ translocation.
https://doi.org/10.1111/jipb.13851
@wileyplantsci
#PlantSci #JIPB

Diagrams and data graphs illustrate how hydrogen sulfide inhibits the inward-rectifying potassium ion current by inducing the persulfide modification on three cysteine residues of the inward potassium channel KAT1. This persulfidation inhibits the activity of KAT1 and KAT2 and suppresses the activity of heterologous channels formed by KAT1 and KAT2.

Luo et al. explore the role of OsCNGC14, 15 & 16 proteins in #stomatal response and tolerance to multiple stresses, suggesting a mechanism that involves both #calcium influx and #stomatal movement regulation.
https://doi.org/10.1111/jipb.13829
@wileyplantsci
#PlantSci #AbioticStress #JIPB #botany

This annotated plant cell membrane diagram (with flow chart) describes how the closely related cyclic nucleotide-gated channel genes OsCNGC14, 15, and 16 in rice positively regulate tolerance to multiple abiotic stresses including heat, chilling, and drought. They also promote stomatal closure and calcium ion influx in response to multiple stresses tightly associated with their function in stress tolerance.

This new #plant #science will leave you speechless!👄
In their new #JIPB paper, Park et al. reveal that #brassinosteroid signaling has a dual #regulatory role in controlling #stomatal #development in #Arabidopsis hypocotyls🌱

https://doi.org/10.1111/jipb.13817
@wileyplantsci
#botany #PlantSci

Flow diagrams and micrographs illustrate that low-to-moderate brassinosteroid concentrations promote stomatal formation in Arabidopsis hypocotyls via upregulation of SPEECHLESS, and independently of BRASSINOSTEROID INSENSITIVE2 (BIN2). High brassinosteroid concentrations or direct BIN2 inhibition suppress stomatal development. BIN2 promotes stomatal formation by inactivating BRASSINAZOLE-RESISTANT1, revealing distinct regulatory pathways between hypocotyls and cotyledons.

A #Model Approach to Understanding the Properties of Guard Cell Walls: The Key to #Stomatal Function
📰 Story: https://buff.ly/3CnBJ2I from @botanyone
🔬 Research: https://buff.ly/3APGEcg by Hojae Yi & Charles Anderson
#Botany #PlantScience 🧪

Open wide!👄
Su et al. use the #OnGuard quantitative model to engineer #plants that overexpressed the main tonoplast Ca2+-ATPase gene, ACA11, promoting #stomatal opening and enhancing plant #growth.
https://doi.org/10.1111/jipb.13721
@wileyplantsci
#ABA #Plantsci #botany

Diagram of open (left) and closed (right) stomata complexes, illustrating the mechanism by which overexpression of ACA11 facilitates the accumulation of Ca2+ in the vacuole, influencing Ca2+ storage and leading to an enhanced Ca2+ elevation in response to ABA. A computer screen is shown, indicating the role of the OnGuard quantitative model, which accurately represents the mechanics and coordination of ion transporters in guard cells.

Unlocking secrets of #stomatal #regulation: Phosphoactivation of #SLAC1 in #plant #guard_cells.

#membrane #GORK #signalling

https://phys.org/news/2024-07-secrets-stomatal-phosphoactivation-slac1-cells.html

Handling #editor, Ian Dodd, investigates #water deficit effects on plants, focusing on #root-to-shoot #signalling, #plant-growth promoting #rhizobacteria, #phytohormones, and #stomatal #physiology.

Open wide!👄
Enjoy #OpenAccess to this #JIPB review from Zhang et al. and learn how understanding the mechanisms that regulate #stomatal movements can lead to the design of resilient, water-smart #crops for a changing #climate.
https://doi.org/10.1111/jipb.13611
@wileyplantsci
#PlantSci #PlantScience #botany

Model superimposed on images of open and closed stomata, showing how carbon dioxide and water vapor pass through the open stomata and various environmental factors, specifically abscisic acid, light, carbon dioxide, pathogens, and temperature, promote stomatal closure.

'#Drought survival in #conifer species is related to the time required to cross the #stomatal safety margin'
Ft.
🌲 Drought response of four coniferous tree species
🌲 New integrative Stomatal Margin Retention Index

https://doi.org/10.1093/jxb/erad352

Artificially modulating #stomatal development may improve #crop #stress tolerance.

#transcriptome #regulation #guardcells #VIGS

https://phys.org/news/2023-06-artificially-modulating-stomatal-crop-stress.html

#stomatal

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