Penelope Lindsay

Mutant alleles that affect pollen fitness can generate spatial inheritance patterns on maize ears – see the article by Ruggiero et al. Top Left: Maize pollen grains germinated on a silk, with pollen tubes (stained with aniline blue) growing into the silk interior. Image Credit: Caity Smyth. Bottom Left: Unpollinated maize ear with silks arranged to show that silks derived from ovules at the base of the ear are longer than silks from ovules at the ear apex. Image Credit: Elyse Vischulis. Right: Ear projection from a mature ear pollinated with the pollen from a plant heterozygous for the bag1*::Ds-GFP insertion, oriented apex-to-base top-to-bottom (as in bottom left ear/silk image). The GFP-marked bag1* allele is associated with a spatial pattern of fewer fluorescent kernels towards the base of the ear – i.e., kernels generated following pollen tube growth down the longest silks.

Very pleased to see this work from the group out in The Plant Journal - led by PhD student Diana Ruggiero from the Leiboff group, a truly collaborative project, addressing the question: how often does pollen genotype influence spatial patterns of inheritance? onlinelibrary.wiley.com/doi/10.1111/...

Reminder of upcoming deadline for this workshop. Registration is free; and fellowships are available for graduate students 🌽 #plant #plantscience #corn

Paging senior graduate students! Apply to present your research during the Salk Discover symposium and network with potential collaborators or faculty advisors. Application deadline extended to March 16.

More info: www.salk.edu/about/our-co...

so proud of the Open Plant community group at Genspace, pictured here - after lots of trials, we have confirmed that we have transgenics expressing glargine! #PlantScience #DIYbio
read more about it here:
www.genspace.org/open-plant-g...

WUSCHEL modulates jasmonate signaling to control the balance between growth and defense in the shoot apical meristem https://www.biorxiv.org/content/10.64898/2026.02.10.705072v1

I worked with Linda Walling!

i participated in this REU 15 (!) years ago - it was an amazing experience!

Proposed model for FASCIATED EAR 3 BARELY ANY MERISTEM 1D receptor signaling complex in Zea mays meristems.

Antagonistic interactions between CLAVATA receptors shape maize ear development

📖 nph.onlinelibrary.wiley.com/doi/10.1111/...
by Lindsay et al.

@penlindsay @WIleyPlantSci #PlantScience

thank youu!

thanks a lot @sureshd.bsky.social ~!

thank you @hazaklab.bsky.social 😊!

thanks!

thank youu! 😊

image is a maize inflorescence meristem labeled with PIP2-CFP and BAM1D-YFP.

image of a maize inflorescence meristem that is labeled by the plasma membrane marker PIP2-CFP and BAM1D-YFP.

nph.onlinelibrary.wiley.com/share/JAIVZX...

Excited to share my latest work in @newphyt.bsky.social. Here, we used TurboID proximity labeling with CLAVATA receptors FEA3 and BAM1D in maize meristems to better understand the signaling pathways important for meristem regulation. #PlantScience

Sphagnum moss 'leaf' tip HFW (horizontal field width) 97µm (the distance from edge to edge horizontally)

Sphagnum moss leaf emphasizing the two cell types HFW (horizontal field width) 97µm (the distance from edge to edge horizontally)

Sphagnum moss leaf bundle HFW (horizontal field width) 1241µm (the distance from edge to edge horizontally)

Sphagnum moss group of 'leaf' tips HFW (horizontal field width) 1241µm (the distance from edge to edge horizontally)

Sphagnum moss

Imaged live on the FV4000, a new, paradigm shifting, laser scanning confocal microscope from Evident LifeScience (aka Olympus).

Green is from the Hyaline Cells and the red from the [chloroplasts in the] Chlorophyllose cells

#sciart #microscopes #moss (scale noted in the Alt-text)

Congress, Now More Than Ever, Our Nation Needs Your Cowardice Share This Editorial

Congress, Now More Than Ever, Our Nation Needs Your Cowardice https://theonion.com/letter-to-congress/

A friend once asked if I wanted to play this game during pollination season. I politely declined 😂

it was great to collaborate with @lmueller.bsky.social to help characterize the Medicago crn mutant!

Leanna Owen, Margot Riggi , David Drubin, Janet Iwasa and Yidi Sun use molecular animation to depict the full progression of CME in budding yeast, with an accompanying Cell Science at a Glance article and poster.
journals.biologists.com/jcs/article/...

Looking forward to three excellent talks from #Sahyadri #OutstandingPostdoc 2025 awardees -
@penlindsay.bsky.social @ehlawrence-paul.bsky.social and Elena Perry

Date: December 12, 2025
Time: 12 pm PT/ 2 pm CT / 3 pm ET
Register Here: tinyurl.com/sahyadri2025

one of my favorite parts of making the film was being able to show my corn plants around Brooklyn 🌽

#PlantScience

No Two Plants To know every plant, even when time is of the essence. To produce careful work, even in the face of systemic, external, and internal pressures. To maintain j...

more info about the film is here: filmfreeway.com/NoTwoPlants

No Two Plants YouTube video by Nora Jane Long

A little over a year ago, I co-directed a short film as part of the Symbiosis Film competition, called "No Two Plants". I was paired with a filmmaker and we had a week to make a short film. I also made the score for the film.

I'm sharing it here, please enjoy!

Maize Genetics Cooperation, Inc Meeting

Registration for the 68th Maize Genetics Meeting from February 26 to March 1, 2026 in Cologne, Germany is now open! #MGM2026
www.mgcmeeting.com

i was wondering whether they played them, i was so curious to know what they sounded like!

had a blast visiting @aribidopsis.bsky.social and Coralie at UBC! So nice to connect with other early career researchers in plant science 🌱

Thank you!

Thank you Cami 😊😊😊