Articles tagged with Auxin Signaling
Tomatoes have difficulty germinating under prolonged heat stress, but two mutant lines with the loss-of-function mutation in SlIAA9 showed little decline in germination and normal seedling development. The mutants exhibited elevated expression of antioxidant enzymes and heat shock proteins, leading to enhanced resilience to heat stress.
A team of scientists from Tokyo Metropolitan University discovered how fertilized rice seeds begin to divide and establish their body axis. They found that the process involves radical steps different from Arabidopsis, with cells acting collectively to allow axis development despite apparent randomness.
Researchers from the University of Cambridge have discovered a unified model that explains how plants control their architecture by integrating local and systemic signals. This breakthrough could help scientists design new strategies to optimize crop yield, resilience, and resource use.
A new study published in Plant Physiology reveals the mysterious growth habit of weeping peach trees by identifying a protein called WEEP. The study shows how the protein establishes asymmetric auxin gradients, leading to shoots growing downwards like roots.
Researchers have found a highly conserved ethylene signaling pathway that can be targeted to control the direction of root growth, creating deeper root systems that hold on to carbon and remove carbon dioxide from the atmosphere. This breakthrough could help engineer crops more resilient to climate change and drought.
A study found that auxin signaling controls root hair elongation in response to nitrogen deficiency, enabling plants to explore soil resources more efficiently. This mechanism provides a new understanding of how plants adapt to low-nitrogen environments and offers potential breeding targets for improving crop nutrition.
Researchers discovered a TIR1/AFB-independent auxin signaling mechanism in Klebsormidium nitens, a primitive alga. They identified KnRAV as a key transcription factor that activates auxin-inducible genes and binds to promoter sequences.
Researchers have identified a gene network underlying rice grain size regulation, revealing a phosphorylation-driven auxin signaling pathway. The study found that OsTIR1–OsIAA10–OsARF4 plays a crucial role in controlling rice grain size and weight.
A fungus called Ustilago maydis manipulates the corn plant's auxin signaling pathway by binding to a protein called Topless, suppressing certain pathways while promoting growth and division. This precise control enables the fungus to thrive in infected plants.
A molecular feedback-loop regulates plant growth by balancing high auxin levels, which stimulates cell division and elongation. The discovery involves PILS proteins that transport auxin into the endoplasmic reticulum, modulating its effect on plant development.
A new mathematical model, EDC2, explains the peculiar 'orixate' leaf arrangement pattern of a Japanese plant, suggesting that older leaves have stronger inhibitory signals. The findings support the accuracy of the formula and shed light on the genetic and cellular machinery behind plant development.
Researchers have discovered a novel gene expression pathway triggered by auxin accumulation at the inner bend of seedling, leading to growth inhibition rather than stimulation. This finding helps explain the formation of apical hooks that aid seedlings in breaking through the soil.
Researchers find that a plant hormone called auxin from the mother plays a crucial role in regulating early embryo development in plants. The study, published in Nature Plants, reveals that increased maternal auxin production is necessary for normal embryo development and that auxin from the mother is essential for correct embryo growth.
Scientists have identified a complex signal chain involving the auxin hormone and calcium channels in plant cells. Calcium waves are used to communicate local auxin signals over long distances, influencing root architecture and differentiation processes.
Researchers discovered that auxin signaling defines the expression of genes WOX1 and PRS, which enable leaf blade expansion and flattening. This finding refines our understanding of auxin signaling in leaf development.
Researchers at UC Riverside have discovered a new auxin sensing and signaling system localized on the plant cell surface, which explains how leaf epidermal cells form their distinctive jigsaw puzzle-piece shapes. This breakthrough discovery sheds light on the molecular mechanisms underlying various auxin-modulated developmental processes.
Researchers have discovered a key function of plant hormone auxin in regulating the organization of the cell's inner skeletons. Auxin interacts with transmembrane kinases to activate ROP GTPases, which affect cytoskeleton structure.
Researchers at the Salk Institute discovered a key enzyme involved in auxin synthesis, which allows plants to stretch towards sunlight. This breakthrough could lead to increased crop yields by manipulating the plant's response to shade avoidance syndrome.
Researchers have made significant advances in understanding the molecular pathway of root development by studying the auxin signaling pathway. The study identified a novel plant gene called NAC1, which is expressed in root tips and regulates the effect of auxin on root formation.