Heterosis, the phenomenon where hybrid plants outperform their genetically distinct parents, is a cornerstone of modern agriculture. This review by Hochholdinger and Yu explores the molecular mechanisms behind heterosis. The review traces the history of heterosis, from its early discovery in tobacco by Kölreuter to its widespread use in crops like maize and rice. It […]
Maintaining root growth is a major plant adaptation to water deficit, enabling continued access to soil water. In a recent review, Voothuluru et al. discuss the inherent complexity of root systems in regard to water stress. Different root types, including primary, seminal, and nodal roots, show varying responses to water deficits, and the root system […]
The development of genetically modified (GM) crops aims to improve agricultural yields in the field. However, their incorporation into agricultural systems is complex, as regulations and acceptance vary globally. While some countries embrace GM crops with herbicide and insect resistance traits, others remain cautious due to concerns about environmental and societal impacts. A recent review […]
Legume plants inhibit the energy-intensive process of symbiotic nitrogen fixation when sufficient nitrate is present, primarily through nodule senescence. However, the nodule-specific genetic regulatory mechanisms of nitrate sensing and nodule senescence are poorly understood. A recent study by Lin and Bjørk et al. identified a key genetic regulator. The authors conducted a large-scale genetic screening […]
For centuries, herbarium collections have provided critical data about plant species and their abundance. However, with the development of digital apps such as iNaturalist that allow citizen scientists to enter data about where plants are found, questions arise about whether herbarium collections are still relevant. Eckert et al. studied how herbarium and iNaturalist data influence […]
Auxin signaling influences plant growth and development by controlling gene expression, often through binding of transcription factors from the Auxin Response Factor (ARF) family to ARF elements (AuxRE) present in the promoters of auxin-responsive genes. However, given that auxin signaling produces many varied effects on growth, it’s not clear how diverse responses are achieved with […]
ELONGATED HYPOCOTYL5 (HY5) is a transcription factor that regulates about one-third of Arabidopsis genes, affecting growth and development of seedlings through light and hormone signaling. UBIQUITIN-SPECIFIC PROTEASE (UBP14) is a deubiquitinating enzyme that removes ubiquitin from substrate proteins. In a new study, Fang et al. performed bi-molecular fluorescence complementation, and yeast two hybrid, pull down, […]
The study by Bertran Garcia de Olalla et al. investigated the role of the APETALA2 (AP2) transcription factor in Arabidopsis, particularly its influence on the shoot apical meristem (SAM) during the transition from vegetative to reproductive growth. AP2 is essential for the rapid increase in SAM height and width, which is associated with changes in […]
From an ancient Greek cure-all to a modern treatment for mild depression, Hypericum perforatum (St. John’s wort) is a fascinating weed. Its leaves and flowers produce hyperforin, a metabolite derived from the isoprenoid pathway, which acts as a serotonin reuptake inhibitor. Despite partial genome and transcriptome data, the later steps in its biosynthesis pathway remain […]