Unlike its wild ancestor teosinte, maize lost much of its seed protein during domestication. A paper @nature discovers teosinte genes that, when expressed in modern maize, increase seed protein without lowering crop yield. shorturl.at/zdsvY
&
highlight @natplants.nature.com:
shorturl.at/e3f6C
Water is essential to life; so how do cells sense and respond to the stress associated with changes in water levels? Work @nature shows that when water is scarce, the plant protein SAM8 forms condensates, trapping RNA-processing factors and so reprogramming translation.
shorturl.at/4VZQf
Work @nature reports a technique that reveals that ubiquitin tags not just proteins and lipids but also sugars and other small molecules. Focusing on glycogen, the authors show its ubiquitination in cells and tissues, and in the context of metabolism and disease.
www.nature.com/articles/s41...
Work @nature shows how an NLR--transcription factor module mediates rice resistance to bacterial blight. Rice subspecies differing in this module vary in pathogen resistance. The authors overcome lower resistance by manipulating the two layers of plant immunity.
share.google/yeQzT8TgUzaM...
Plants use nitrogen inefficiently. A study @nature shows that, in maize, the plastoglobule droplets within chloroplast organise key nitrogen-fixation enzymes, supercharging nitrogen use. The findings could be relevant to growing crops using less fertiliser.
shorturl.at/1dNA9
&NV
shorturl.at/G1NDu
Cold weather damages crops by causing pollen to fail. Work @nature shows how plants detect and respond to cold during pollen development. It uncovers a peptide receptor signalling pathway that boosts pollen cold resilience, restoring ~52% of tomato yield and ~18% in rice.
shorturl.at/j7zOb
The ESCRT machinery mediates repair of damaged lysosomal membranes. But how does it recognise damage? Authors @nature report LASER, a fast-forming protein assembly that detects Ca2+-leakage from sites of lysosomal injury and recruits ESCRTs there.
shorturl.at/T9zM6
Numerous fungal diseases threaten rice crops. @nature, researchers identify a gene that makes rice susceptible to multiple fungal pathogens. In field-based experiments, rice crops in which this gene was disrupted showed resistance to several fungal diseases.
www.nature.com/articles/s41...
Just as low-oxygen levels stress plants that are exposed to flooding, so does post-flooding reoxygenation and the associated burst of reactive oxygen species. Work @nature, shows that in both cases, the same molecular players mediate plants’ stress response.
shorturl.at/kIRDf
@nature, researchers describe an RNA-RNA-mediated arm-race between fungal pathogens and their plant hosts. Specifically, they show that a fungal lncRNA weakens host immunity by sequestering a protective rice miRNA.
shorturl.at/mIuvy
Teosinte alleles enhance nitrogen assimilation and seed protein without lowering crop yield when expressed in modern maize, providing a powerful strategy for crop improvement to meet future population demands.
Plants sense water deficiency through SAM8 protein condensation, which responds to reduced hydration and triggers stress adaptation by altering RNA export and gene translation.
www.nature.com
Sadaf Shadan
Sadaf Shadan
ATG8 conjugation on damaged lysosomes triggers rapid assembly of a protein complex containing TFG, which directs lysosomal membrane repair by recruiting ESCRT proteins to sites of damage.
Chloroplast plastoglobules act as nitrogen-assimilation hubs in maize, with key enzymes enhancing nitrogen-use efficiency and offering new strategies for developing high-yield, sustainable crops.
Experiments in Arabidopsis demonstrate that group VII ethylene response factors show differential responses to different stimuli, enabling plants in flood-prone environments to adapt to both submergence-induced hypoxia and reoxygenation upon desubmergence.
Nature - Ubiquitination of glycogen and metabolites in cells and tissues
www.nature.com
SnRK1β1A in rice promotes susceptibility to multiple fungal diseases, and disrupting this infection-inducible gene confers broad-spectrum resistance without compromising growth or yield under normal f...
A small-peptide signalling axis involving RGF family members controls resilience to cold stress in tomatoes and rice; modulating this pathway prevents cold-induced yield losses.
A fungal long non-coding RNA from Magnaporthe oryzae translocates into rice cells to sequester a host microRNA that normally represses PKR1, a negative immunity regulator, thereby facilitating infection and revealing a widespread RNA-based pathogen–host interaction mechanism.
