Recent Posts

The urban environment led to unintended adaptive evolution in plants (Science)

Generally, evolution is driven by natural selection, but not always. Human activities lead to the creation of unique niches, and other organisms must adapt accordingly. Cities are unique niches that are significantly different from rural areas and natural conditions. The urban habitat provides plants…

Climate shapes the seed germination niche of temperate flowering plants: a meta-analysis of European seed conservation data (Ann. Bot.)

The seed germination niche is the set of environmental conditions in which a seed can germinate. This collection of requirements is expected to be tuned to the climate each species encounters in its natural habitat, but this hypothesis remains to be formally tested. Here, Carta and colleagues make use…

Seed dormancy in space and time: global distribution, paleo- and present climatic drivers and evolutionary adaptations ($) (New Phytol.)

Seed dormancy is widely recognized as a key mechanism to ensure that germination takes place under the most suitable conditions. Such is its importance that multiple studies have described the morphological, physiological, and genetic mechanisms behind it, yet its global distribution and the past and…

GWAS on multiple traits identifies mitochondrial ACONITASE3 as important for acclimation to submergence stress (Plant Physiol.)

Climate change is affecting the frequency and intensity of extreme climatic events such as floods, reducing crop production severely. Submergence might lead to a lack of O2, light, and carbon dioxide, having an impact on the carbohydrate content and ATP synthesis. In this work, Xiangxiang et al. characterise…

Plant salt tolerance through a peptide and receptor like kinase pathway (Plant Cell)

Soil salinity is a major stress that hampers plant growth, but plants have evolved signaling pathways to sense and respond to salinity.  Zhou and colleagues have recently reported a novel pathway in Arabidopsis thaliana that that involves a peptide ligand, PAMP-INDUCED SECRETED PEPTIDE 3  (PIP3) and…

TT2 controls rice thermotolerance through SCT1-dependent alteration of wax biosynthesis (Nature Plants)

Global warming severely affects agricultural harvests, risking food security. To deal with heat stress, plants show different strategies. Indeed, heat increases intracellular Ca2+ levels to activate a heat shock response. In addition, GTP-binding proteins, which transduce extracellular signals to intracellular…

Fast and global reorganization of the chloroplast protein biogenesis network during heat acclimation (Plant Cell)

With the rising climatological extremes, heat stress is a major concern towards sustainable crop yield and productivity as it impairs several physiological and developmental processes. Due to the sessile lifestyle of land plants, they undergo various acclimation responses to cope with fluctuating temperatures.…

The splicing factor RNA BINDING PROTEIN 45d regulates temperature-responsive flowering (Plant Cell)

Posttranscriptional events such as splicing are part of the gene regulation toolbox. Previous studies have demonstrated a role for U-rich small nuclear ribonucleoproteins (snRNPs) such as U1 in the control of splicing. In a recent paper in The Plant Cell, Chang et al. identified a splicing factor, RNA…

Functional interaction of nitrate signaling regulator NLP7 and N-degron “recognin” PRT6 enhances abiotic stress tolerance (Plant Physiol.)

In addition to the vast array of metabolic and signaling roles, nitric oxide (NO) is prominently involved in low oxygen sensing in seeds and waterlogged plants. In Arabidopsis, the cytosolic nitrate reductase (NR) isoforms NIA1/NIA2 catalyze the reductive pathway of NO generation. NO sensing in plants…