
Arabidopsis endosperm response to paternal genome dosage is regulated by small RNA pathway (Plant Cell)
Plant Science Research WeeklyThe endosperm, a tissue that transfers nutrients from maternal tissue to the embryo, is normally triploid, with two copies of the maternal genome and one of the paternal genome. Excess paternal genomes usually leads to endosperm abnormalities and seed abortion. Previous studies have shown that the RNA…

An insulator of CLE-signaling boosts cell-differentiation in protophloem formation
Plant Science Research WeeklyWaddington’s epigenetic landscape, a famous metaphor in developmental biology, depicts how a stem cell progresses from an undifferentiated state to a differentiated one. To some degree this metaphor can also be applied to root cell differentiation. It’s well-known that the CLE-45 peptide and its…

Cytokinin functions as an asymmetric and anti-gravitropic signal in lateral roots (Nature Comms)
Plant Science Research WeeklyLateral roots help plants to explore the soil and environmental conditions. Waidmann et al. took advantage of natural variants to understand lateral growth angle by analyzing gravitropic set point angle (GSA). Using Col-0 as a reference, lines that over- or under-respond (steeper or shallower root angle)…

Plant cell-surface GIPC sphingolipids sense salt to trigger Ca2+ influx (Nature)
Plant Science Research WeeklySoil salinity is one of the most important global problems that negatively affect crop productivity. Jiang et al designed a forward genetic screen in A. thaliana to identify the specific ionic response triggered by salt stress. They mutagenized plants expressing the genetically encoded Ca2+ sensor aequorin,…

Male sterility in maize after transient heat stress (Plant Physiol)
Plant Science Research WeeklyThe corn we eat is a seed, which is a product of fertilization. It is widely known that corn yields are highly susceptible to abiotic stress conditions that occur during the repdroductive stage of development. Begcy et al. used a metabolomic / transcriptomic approach to understand why transient heat…

TurboID-based proximity labeling reveals that UBR7 is a regulator of N NLR immune receptor-mediated immunity (Nature Comms)
Plant Science Research WeeklyIdentification of protein- protein interactions helps understand the signaling cascade in multiple biological process including development, biotic and abiotic stress. Previously, a proximity-based labelling approach referred to as BioID had been used to identify proteins in close proximity to a protein…

Plant Science Research Weekly: August 9th
Blog, Research Blog, WWR Full PostPhyscomitrella STEMIN transcription factor induces stem cell formation with epigenetic reprogramming
Insights into transcription factors (TFs) in non-flowering plants are increading thanks to the establishment of new bryophyte model organisms. In new work, Ishikawa et al. present STEMIN1, a Physcomitrella…

Recognizing Plant Physiology first authors: Bara Altartouri
Plant Physiology, Plant Physiology: Author ProfilesBara Altartouri , first author of Pectin chemistry and cellulose crystallinity govern pavement cell morphogenesis in a multi-step mechanism
Current Position: PhD candidate at the University of Montreal, Canada
Education: Master’s degree in horticultural genetics and biotechnology, MAICh institute,…

Recognizing Plant Physiology first authors: Kevin Begcy
Plant Physiology, Plant Physiology: Author ProfilesKevin Begcy, first author of Male Sterility in Maize after Transient Heat Stress during the Tetrad Stage of Pollen Development
Current position: Assistant Professor, University of Florida
Education: Ph.D. in Plant Breeding and Genetics, University of Nebraska-Lincoln.
Non-scientific interest: Sports,…
