SlARF11–SlGATA5 stimulates tomato leaf angle by feedback regulation with brassinosteroid signaling Leaf angle in tomato is regulated by a regulatory module involving the non-canonical auxin response factor SlARF11, which interacts with SlGATA5, facilitating SlGATA5 binding to the promoters of gene...

🍅Welcome back to another #TomatoTuesday!
🤝Wang et al. explore the relationship between #auxin response factors and #brassinosteroid signaling to regulate #tomato #leaf angle.
🔗 doi.org/10.1111/jipb...
@wileylifesci.bsky.social
#PlantScience #JIPB #CropScience #AgTech #PlantArchitecture

10/🔗 Read the full stories here:

🌱Borniego, Pereyra, et al.: doi.org/10.1038/s414...
🔬Wilkinson, Sageman-Furnas, et al.: doi.org/10.1038/s414...

#PlantPhysiology #Auxin #Thermomorphogenesis #CellBiology #Arabidopsis #OpenAccess #PlantSci

Dolk studied with auxin pioneer Friedrich Went @utrechtuniversity.bsky.social, but Skoog's time with him was cut short when Dolk passed away. His place was taken by another student of Went, his son Frits-the discoverer of #auxin. It was Went who speculated that there must be a second growth factor.

#auxin 👌

Auxin accumulation in cereals after infection by Fusarium graminearum: putative biosynthetic pathways and preferences - Stress Biology Indole-3-acetic acid (IAA) is a major naturally occurring auxin that shows extensive accumulation in cereal plants during the first few days of infection by the phytopathogen Fusarium graminearum. Apa...

Auxin accumulation in cereals after infection by Fusarium graminearum: putative biosynthetic pathways and preferences

Huanzhang Shang, Bo Ji ... Xiulin Chen, Kun Luo

link.springer.com/article/10.1...

#PlantImmunity #Effectors #Fusarium #Auxin

Boosting auxin in tissue culture enhances CRISPR gene editing efficiency, but delays shoots. A 'two-phase' strategy fixes it! #GeneEditing #CRISPR #Auxin #PlantScience @academic.oup.com
Details: doi.org/10.1093/hr/u...

Highly recommended! #auxin

​A Level Biology As you drive down a road in early spring, the daffodils on either side of the rad face towards you. We answer the question. Why do they do this?
hemelprivatetuition.blogspot.com/2026/03/a-le...
#ALevelBiology #PlantBiology #Phototropism #Auxin #Daffodils#ScienceInNature

The role of nitrilases in auxin biosynthesis, plant development and stress responses Abstract. NITRILASEs (NITs) are enzymes that have been identified across kingdoms. NITs are industrially important hydrolases, which are widely used in the

New Review!

Barbara Wójcikowska reviews the latest information on plant NIT1 subfamily of nitrilases, known for their roles in root & flower development, and their emerging roles in #auxin biosynthesis under biotic & abiotic stress conditions

doi.org/10.1093/pcp/...

#plantscience

Very interesting preprint!
Evolution of moss leaf-like organs through variations in deeply conserved developmental principles
#auxin #Physcomitrella
www.biorxiv.org/content/10.6...

#auxin

Collapsed auxin transport by iron inhibits primary root growth under low phosphate stress Under low phosphate stress, a burst of reactive oxygen species by accumulated iron suppresses the activity of PIN proteins, leading to a collapse of polar auxin transport and distribution in primary ...

#Arabidopsis root growth is known to be suppressed under low Pi conditions. Here, Zhang et al. report that this #growth inhibition is caused by the collapse of #auxin transport in the presence of accumulated iron.
doi.org/10.1111/jipb...
@wileylifesci.bsky.social
#PlantScience #physiology

#auxin #roots #hydrosignaling

Evolution and development: What makes a merry stem? From tiny mosses to giant redwoods, around 450,000 species of land plants show a huge variety of forms, yet all land plants develop from stem cells in proliferative meristems. What makes a meristem? T...

Insightful new papers on #auxin, brilliantly compiled by @jillharrison.bsky.social.
Evolution and development: What makes a merry stem?
www.cell.com/current-biol...

Auxin signaling dynamics during Ceratopteris male development in response to antheridiogen. The six panels contain confocal time-lapse images showing auxin signaling dynamics in Ceratopteris male gametophytes expressing the DR5v2::ntdTomato transgenic reporter, grown on conditioned fern medium. A male gametophyte was live-imaged every day from 1 to 6 days after germination (DAG). The panels show projection views of tdTomato signals (Fire LUT). The white arrowhead (top left panel) indicates the initial DR5 signal in the early developing prothallus, while yellow arrowheads (top row) indicate DR5 signals in developing rhizoids. Cyan arrowheads and white dashed circles highlight DR5 signaling dynamics during antheridium initiation and maturation. Color bars represent the relative intensity of DR5 signals in Fire LUT images, with low intensity shown in black, intermediate intensity in blue to red, and high intensity in yellow to white. The color scale applies to the entire prothallus but excludes the spore coat. Scale bars: 50 µm.

Ferns alternate between asexual #sporophyte & sexual free-living #gametophyte. This study uncovers the mechanism of male-to- #hermaphrodite conversion in the #fern #Ceratopteris, revealing a novel role for #auxin biosynthesis during #meristem formation @plosbiology.org 🧪 plos.io/4k5EcAU

Auxin signaling dynamics during Ceratopteris male development in response to antheridiogen. The six panels contain confocal time-lapse images showing auxin signaling dynamics in Ceratopteris male gametophytes expressing the DR5v2::ntdTomato transgenic reporter, grown on conditioned fern medium. A male gametophyte was live-imaged every day from 1 to 6 days after germination (DAG). The panels show projection views of tdTomato signals (Fire LUT). The white arrowhead (top left panel) indicates the initial DR5 signal in the early developing prothallus, while yellow arrowheads (top row) indicate DR5 signals in developing rhizoids. Cyan arrowheads and white dashed circles highlight DR5 signaling dynamics during antheridium initiation and maturation. Color bars represent the relative intensity of DR5 signals in Fire LUT images, with low intensity shown in black, intermediate intensity in blue to red, and high intensity in yellow to white. The color scale applies to the entire prothallus but excludes the spore coat. Scale bars: 50 µm.

Ferns alternate between asexual #sporophyte & sexual free-living #gametophyte. This study uncovers the mechanism of male-to- #hermaphrodite conversion in the #fern #Ceratopteris, revealing a novel role for #auxin biosynthesis during #meristem formation @plosbiology.org 🧪 plos.io/4k5EcAU

Auxin signaling dynamics during Ceratopteris male development in response to antheridiogen. The six panels contain confocal time-lapse images showing auxin signaling dynamics in Ceratopteris male gametophytes expressing the DR5v2::ntdTomato transgenic reporter, grown on conditioned fern medium. A male gametophyte was live-imaged every day from 1 to 6 days after germination (DAG). The panels show projection views of tdTomato signals (Fire LUT). The white arrowhead (top left panel) indicates the initial DR5 signal in the early developing prothallus, while yellow arrowheads (top row) indicate DR5 signals in developing rhizoids. Cyan arrowheads and white dashed circles highlight DR5 signaling dynamics during antheridium initiation and maturation. Color bars represent the relative intensity of DR5 signals in Fire LUT images, with low intensity shown in black, intermediate intensity in blue to red, and high intensity in yellow to white. The color scale applies to the entire prothallus but excludes the spore coat. Scale bars: 50 µm.

Ferns alternate between asexual #sporophyte & sexual free-living #gametophyte. This study uncovers the mechanism of male-to- #hermaphrodite conversion in the #fern #Ceratopteris, revealing a novel role for #auxin biosynthesis during #meristem formation @plosbiology.org 🧪 plos.io/4k5EcAU

#auxin i'activation

#auxin #somatic embryogenesis

Auxin reimagined: Transport and signaling patterns This commentary explores recent advances that reveal how auxin transport and signaling precisely regulate its function in plant growth and development and offer new tools for precise plant engineerin...

📩Message received!📡
This #FreeAccess commentary explores recent work on the functional regulation of #auxin transport and signaling in plant #growth and #development, offering new tools for precise #plant engineering.
doi.org/10.1111/jipb...
@wileylifesci.bsky.social
#PlantScience #Phytohormones

The synthetic compound Y21 acts as a gibberellin (GA)-signaling agonist and an auxin analog, promoting the interaction between GA and the GID1C receptor to degrade DELLA proteins, and binding to the auxin receptor TIR1 to degrade Aux/IAAs. Consequently, Y21 enhances seed germination, root development, and tolerance of low-phosphorus conditions.

Can you have the best of both worlds? Xu et al. think so!
They report that the artificial thiourea derivative, Y21, serves as a GA-signaling agonist *and* an #auxin analog, promoting #seed germination and #root #development.

➡️ doi.org/10.1111/jipb...
@wileylifesci.bsky.social
#PlantScience

#auxin!!! See you all there 🎉🎉🎉

They Know Things | Rupert Sheldrake

#Plant #Intelligence Is More Mysterious Than You Think... The #Polarity of #Plants

youtu.be/6xHF1WB1loU?...

#Botany #Trees #Permaculture #Soils #Microbes #Auxin

ARF3-mediated auxin signaling is essential for sex determination in cucumber Sex determination underpins genesis of male and female flowers with particularly important implications in plant breeding. Auxin and ethylene regulate femaleness in cucurbits. Here, we identified an a...

#auxin ARF3 in cucumber 👍

www.science.org/doi/10.1126/...

Forgot to quote...

#auxin, habitation in tobacco cell suspensions. I might need to check my TIR1 expression too, after all these years 😉

📢 New publication 'The B-class #auxin response factor MpARF2 is essential for #meristem organization in free-living #plant gametophytes' by Eduardo Flores-Sandoval et al. in Current Biology 🧪🌱

doi.org/10.1016/j.cu...

#auxin and light for root haits

#auxin, novel GH3 inhibitor!

Our latest article is out in the Plants special issue www.mdpi.com/journal/plan...

We explore how HD-ZIP II transcription factors shape reproductive development by modulating auxin and cytokinin homeostasis
www.mdpi.com/2223-7747/14...

#Auxin #Cytokinin #HDZIPs-II #PlantDevelopment #OpenAccess

#auxin