Barley plants produce unique antifungal compounds called hordedanes to defend against pathogens. Scientists identified 17 hordedanes that inhibit fungal growth, but a pathogen, Bipolaris sorokiniana, exploits these defenses to thrive. By neutralizing hordedanes, it extends its parasitic phase, showcasing the complex evolutionary battle between plants and pathogens.
Researchers have achieved the most detailed genome assembly of grass pea (Lathyrus sativus) to date, creating a chromosome-scale reference genome. This resource could revolutionize breeding for climate-smart agriculture. With improved accuracy, the genome reveals insights into drought resilience and supports development of safer, more sustainable crop varieties.
Researchers have streamlined methods to study chloroplast and mitochondrial impacts on photosynthesis, opening new pathways for enhancing energy efficiency in crops. Plants currently capture only ~1% of solar energy; optimized genetics could increase this sixfold. These advances promise sustainable, high-yield crops to address global food security amid climate challenges.
Scientists have discovered a novel way to protect plants from harmful pathogens using weak electric fields. Spores like Phytophthora palmivora, which attack crops such as palms and nuts, are electrotactic—attracted to electric charges. Placing field-generating devices near plant roots reduced spore attachment, offering a pesticide-free approach to crop protection.
Nitrogen-fixing plants like clover and alder, crucial for enriching nutrient-poor soils, are declining in temperate forests due to human-driven nitrogen deposition, a new study shows. Using decades of data from Europe and the USA, researchers found this decline is independent of climate changes, highlighting the threat to ecosystem diversity and soil health.
Ice age cycles had minimal impact on the genetic diversity of European trees, finds a new study. High diversity arose from traits like long lifespans and pollen traveling vast distances. This resilience offers hope for forests adapting to today’s rapid climate changes.
Scientists have identified genes that enable plants to produce dimethylsulfoniopropionate (DMSP), a molecule enhancing stress tolerance. High DMSP levels allow plants like Spartina grass to thrive in salty environments. This breakthrough could improve crop resilience to drought and salinity, advancing sustainable agriculture amid climate change challenges.
The Late Devonian Alasemenia fossil reveals the oldest known winged seeds, featuring three wings optimized for wind dispersal. Mathematical analysis showed that three-winged seeds spin more stably than seeds with one, two, or four wings, allowing farther dispersal. This suggests early wind dispersal strategies evolved in plants 360 million years ago.
A new study provides updated guidelines for accurately estimating plant genome size using flow cytometry. Researchers identified sources of error—such as tissue type, buffer choice, and fluorochrome variations—that can affect accuracy by ±29% or more. Revised reference standards and best practices aim to improve reliability in genome sizing.
Plants use pigments called phytochromes to sense light and temperature, adjusting growth and metabolism accordingly. Rising temperatures, however, disrupt these processes. Researchers found that under red light, phytochrome responses vary with temperature and light intensity, potentially allowing precise control of plant gene activation for biotechnology.
