Perspective: Periodic lateral root priming: What makes it tick
Plant Science Research Weekly, Research0 Comments
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The very earliest step in lateral root formation is “priming”, a still-elusive process that establishes a subset of cells as competent to form lateral roots. In this Perspective, ten Tusscher and Laskowski review evidence for priming, which involves oscillations of auxin level or responsiveness…
Generation of shape complexity through tissue conflict resolution
Plant Science Research Weekly, ResearchIt’s easy to visualize how a sheet of cells grows, but how does a sheet of cells form a complex, three-dimensional structure? Rebocho et al. describe how differential growth rates between cell layers and across the growing surface can produce a variety of complex shapes. As a model for shape complexity,…
Andrea Eveland Teases Apart Gene Networks in Crop Plants
Blog, Careers, Profiles of Plant ScientistsThe Scientist (Feb 1 2017) profiles Andrea Eveland, Principle Investigator at the Danforth Center.
Read more here Andrea Eveland Teases Apart Gene Networks in Crop Plants
Her lab webpage https://www.danforthcenter.org/scientists-research/principal-investigators/Andrea-Eveland
Ottoline Leyser. Thinking like a vegetable: How plants decide what to do
CSVL Research, Curated Webinars / Video Lectures, WebinarsFilmed at Gatsby Summer School 2015
Professor Ottoline Leyser, Director of the Sainsbury Laboratory at the University of Cambridge, speaking at the Gatsby Plant Science Summer School 2015.
http://sms.cam.ac.uk/media/2115987
Regulation of tulip flowering by temperature ($)
Plant Science Research Weekly, ResearchCultivation of Tulipa gesneriana (tulip), an economically important species due to its ornamental value, can be affected by warming winters, leading to low quality flowers produced out of season. Leeggangers et al. have sequenced RNA and used top-down and bottom-up approaches in tulips grown in two contrasting…
The origin of floral identity quartets
Plant Science Research Weekly, ResearchWhere do flowers come from? Their sudden appearance and rapid radiation was described as an “abominable mystery” by Charles Darwin. Ruelens et al. examine the genetic toolkit that underpins reproductive organ formation in gymnosperms to uncover the origins of flowers (which they pragmatically describe…
Brassinosteroid signaling directs formative cell divisions and protophloem differentiation in Arabidopsis root meristems
Plant Science Research Weekly, ResearchIt’s been 20 years since the identification of BRI1, the first brassinosteroid (BR) receptor. Although many components of the BR signaling pathways have been identified, details continue to be revealed. Kang et al. examined the phenotype of a triple mutant, bri1 brl1 brl3, that lacks all three functional…
Gain-of-function variants of cytokinin receptors ($)
Plant Science Research Weekly, ResearchArabidopsis has three membrane-located, histidine-kinase cytokinin (CK) receptors (AHK2, 3, and 4). Loss-of-function mutants suggest that AHK2 and AHK3 function somewhat redundantly. To further explore the roles of these receptors, Bartrina and Jensen et al. isolated dominant gain-of-function mutants,…
Peptide diffusion as a signal for Casparian strip diffusion barrier formation ($)
Plant Science Research Weekly, ResearchThe Casparian strip is a permeability barrier that seals the spaces between root endodermis cells and so prevents bulk-flow uptake of solutes. Previously, a leucine-rich repeat receptor kinase called SCHENGEN3 or GASSHO1 (GSO1/SGN3) was identified as necessary for normal Casparian strip formation. Now,…