How do plants decide where to invest their resources when nutrients and energy are limited? A new study highlights trehalose-6-phosphate (Tre6P), a key sugar-status signal, as a critical coordinator. Previous work demonstrated that transgenic plants expressing modified versions of TPS1, the enzyme responsible for Tre6P synthesis, exhibited defects in primary root growth, suggesting an important […]
A major challenge in plant genome engineering is the precise insertion of large DNA sequences into a defined genomic location, preferably without involving a double-strand break. Addressing this longstanding technical hurdle, Ali and colleagues introduce a versatile gene-targeting platform based on the R2 retrotransposon, targeting a highly conserved 28S rDNA locus. Using Nicotiana benthamiana and […]
Plants continuously monitor their environment through sophisticated defense systems that recognize microbe-associated molecular patterns and activate immune responses. Among the diverse signaling molecules involved, peptides have emerged as an important molecular language that coordinates communication within and between plant cells. Despite their significance, many aspects of peptide-mediated signaling remain poorly understood. In a recent review, […]
Genome editing has rapidly transformed biology, and Cas9 remains the most widely used tool for making targeted changes in DNA. Recently, a new AI-designed editor called OpenCRISPR-1 (OC1) which differs from prototypical SpCas by more than 400 amino acids has shown promise in human cells. Das and colleagues took the bold next step of testing […]
Autophagy is a conserved cellular recycling process that clears unwanted components and helps maintain balance under stress. In plants, immunity protects against invading pathogens, but how autophagy regulates this defense system has remained unclear. To address this question, Clavel and colleagues challenged a panel of autophagy-deficient Arabidopsis mutants with RNA viruses and found that all […]
Endophytic bacteria and fungi, the invisible allies within plant tissues, are emerging as powerful contributors to sustainable agriculture. They can enhance plant defense through multiple mechanisms, including antibiosis, niche competition, and the induction of systemic resistance, thereby reducing reliance on chemical pesticides. Noor and colleagues highlight the remarkable diversity of plant endophytes, classifying them by […]
Plants thrive in constantly changing environments through remarkable trait plasticity, enabling rapid physiological and developmental adaptation to stress. Beyond immediate responses, chromatin regulation provides a mechanism for long-term stress memory via epigenetic changes, allowing plants to “remember” previous environmental challenges. These discoveries have inspired the development of epi-bred and epi-trained plants, in which stable or […]
Plant pathogens are skilled manipulators, using specialized molecular weapons to weaken plant defenses and establish infection. Traditionally, scientists have focused on secreted proteins, known as effectors, that help pathogens suppress plant immune responses. But recent discoveries show that fungal pathogens have another trick: they produce small RNAs (sRNAs) that can cross from the fungus into […]
When looking at the foods that fill our supermarkets, it can be hard to imagine we are relying on just a handful of domesticated plant species. Thousands of wild plants, each with its own unique strengths, remain overlooked and underused. For years, plant breeders have tried to borrow these unique traits by crossbreeding wild relatives […]