Articles tagged with Plant Signaling
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Researchers have developed a new bioelectronic technology to map fast electrical signals in plants, revealing how plants respond to touch and stress. The study uses a multi-electrode array technology on the Venus Flytrap, demonstrating that electrical signals originate from sensory hairs.
Researchers found that tobacco hornworm caterpillars introduce an enzyme into plants during feeding, modifying the plant's fragrance to attract predators. This interaction may be beneficial for the caterpillar's development, outweighing any costs associated with its interaction with the plant.
A Washington State University-led study reveals that plants can distinguish between touch and release by sending slow waves of calcium signals when touched and rapid waves when released. The researchers used specially bred plants with calcium sensors to detect these changes, providing new insights into plant sensitivity.
Researchers at the University of Florida have identified plant-produced compounds that could help manage lethal bronzing, a deadly disease spread by a small insect. These green leaf volatiles, released by healthy palms near infected trees, can activate defense mechanisms to potentially stave off the pest.
Scientists discovered that electrical signals in Laccaria bicolor mushrooms increased after rainfall, demonstrating signal transport among closely spaced mushrooms. The post-rain electric potential showed directionality and strengthened connectivity between spatially close fungi.
Researchers at Tohoku University discovered that the KAI2-ligand hormone initiates and terminates asexual reproduction in liverwort plants based on environmental factors. The team found that gemma formation starts from the inner region of the gemma cup and moves out to the periphery.
Researchers found that stressed tomato and tobacco plants produce pops or clicks, which can be heard by insects, mammals, and possibly other plants. The sounds are thought to be caused by air bubble formation in the plant's vascular system.
Researchers discovered a plant biological clock-regulated mechanism that helps plants tolerate cold temperatures and damage from bright light. The mechanism, controlled by the SIG5 gene, signals proteins in chloroplasts to protect against environmental stress, potentially improving crop resilience for colder climates.
Researchers developed a novel strategy to engineer root nodule symbiosis in legumes and cereals using nanobodies. This approach, tested in barley and Lotus plants, initiates nodulation by bringing receptors together, revealing the core complex involved in symbiotic signaling.
Researchers have discovered that nutrient elements such as potassium, calcium, magnesium, and sodium can activate immune responses in tomato plants, leading to disease resistance. The study found that different defense signaling pathways are required for induction of immunity in response to different elements.
Scientists have decoded the signals plants send themselves to initiate photosynthesis, a process turning sunlight into sugars. The newly identified proteins control communication between plant cells and organelles, potentially leading to breakthroughs in cancer research and improving crop yields.
Researchers have successfully uncovered the structure of a model bacterial phytochrome, revealing symmetrical and asymmetrical states in response to light. The study found that almost non-existent structural changes in regulatory domains can amplify biochemical effects elsewhere.
Researchers found a molecular pathway that plants use to direct their carbon dioxide intake, allowing for more efficient water use and increased crop resilience. This breakthrough could lead to new tools for crop breeders and farmers to produce crops robust enough for the changing environment.
Researchers at KAUST have discovered a key protein that acts as a master switch for plant immunity, suggesting a simpler way to develop more resilient crops. The protein, OXI1, triggers the production of immune-promoting molecules, but its overactivity can harm plants.
A team of researchers at the University of Tokyo has discovered a newly found trait in the Causonis japonica flower, which changes color depending on its maturation cycle and then reverses. The pigments involved are related to nutrient-rich colorful vegetables, suggesting potential downstream applications in improving nutrient yields.
A team of researchers from Martin-Luther-University Halle-Wittenberg has discovered a transport pathway for manganese in plants and the role that BICAT3 plays in this process. The protein is responsible for transporting manganese to where it needs to go in plant cells, leading to improved crop growth.
Researchers found that SEUSS condensates rapidly form upon hyperosmotic stress, enabling Arabidopsis to tolerate salt and drought. Loss of SEU dramatically compromises stress-tolerance gene expression.
Researchers at John Innes Centre found that amino acid waves, not calcium waves, mediate plant responses to stress. Glutamate released from wounds triggers a wave of calcium responses in plant tissues.
A new study sheds light on the leaf traits and productivity of C4 bioenergy crops, revealing distinct niches in the leaf economics spectrum. The research found that miscanthus and sorghum, two C4 plant species, have higher photosynthetic rates and nitrogen use efficiency than common C3 plants.
Researchers have discovered a key link between warmer early winters and reduced crop yields in oilseed rape plants. The study found that colder temperatures during late November/early December promote faster growth and higher yields, while warmer temperatures result in lower yields.
The new photodetector design combines long-range transport of optical energy with long-range conversion to electrical current, mimicking the photosynthetic complexes found in plants. The device can gather light from areas of about 0.01 mm² and achieve conversion of light to electrical current over exceptionally long distances of 0.1 nm.
Researchers at the University of Münster have identified a specific group of cells in plant roots that react to salt stress, forming a 'sodium-sensing niche' and triggering a calcium signal. This signal is controlled by a calcium-binding protein (CBL8) that helps pump out salt from the plant under severe stress conditions.
A recent study led by Eliza Loo found that plant immune receptors and signaling components confer salt tolerance even in plants challenged by non-pathogenic microbes. This suggests that plants can sense and initiate adaptive responses to abiotic stresses upon detecting alterations in cues presented by plant-inhabiting microbes.
Researchers have discovered that reactive oxygen species (ROS) can serve as a communication signal to indicate plant stress, which is critical for crop survival and can significantly decrease with multiple stressors. By monitoring ROS levels, farmers can identify plants under stress and take corrective measures to prevent crop loss.
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.
Recent advancements in non-destructive sensors enable real-time monitoring of plant health, allowing for prompt adjustment of environmental conditions to augment crop productivity. The sensors convert plant signals into digital signals, establishing direct communication between plants and growers.
Researchers have found a signaling molecule that helps plants survive flooding by triggering a molecular emergency power system. Pretreating plants with ethylene improves their chances of survival. The study could lead to the development of resistant plant varieties to combat waterlogging and flooding in agriculture.
Researchers found that tobacco hawkmoths can identify vital nectar sources and suitable host plants despite a complex odor mixture, with female moths responding strongly to specific floral scents after mating. The study suggests that plant-typical mixing ratios play a crucial role in guiding the moths to the right oviposition sites.
Researchers have identified three new proteins that play a key role in plants' response to physical contact and touch, solving a scientific mystery that has eluded molecular biologists for 30 years. The study's findings could lead to higher yields and improved stress resistance in crops, which is crucial in the face of climate change.
Researchers discover that type 1 TPCs encode SV channels in plant vacuoles, while type 2 TPCs likely encode distinct ion channels. This study provides functional and evolutionary insights into the TPC family in plants, shedding light on their role in plant growth and defence mechanisms.
Researchers unlocked the structure of an enzyme that regulates plant growth in response to strigolactone hormone. The enzyme, MAX2, targets repressor proteins for destruction when it's unlocked, allowing genes to be expressed and activating various growth processes. This discovery sheds light on how plants adapt to their environment.
A team of scientists from the University of East Anglia has developed a new method to estimate regional fossil fuel CO2 emissions more accurately and in near real-time. Using atmospheric measurements of O2 and CO2, they can detect changes in emissions with higher frequency and provide valuable insights for climate change policies.
Researchers found that JA signaling regulates trichome formation in tomatoes through the synergistic action of C2H2 zinc finger proteins H and HL. High H/HL activity represses the expression of THM1, a transcription factor that negatively regulates trichome formation.
The John Innes Centre researchers identified the role of the signaling protein CaM2, which regulates calcium channels and shapes calcium signals. This led to accelerated calcium frequency, earlier signaling with bacteria, and enhanced root nodule symbiosis in engineered legume roots.
Researchers discovered that plant volatile signals can warn neighboring plants of herbivore attacks, activating defense genes and increasing resistance. The team found epigenetic mechanisms, including histone acetylation, play a key role in this process.
The Venus flytrap has a sensitive system for stimulus transmission, with electrical impulses triggered by touch and transmitted quickly to catch prey. Anaesthetizing the plant with ether reveals that it does not react to touch during this time, mirroring human anaesthesia.
Researchers have discovered an ancient receptor protein that can detect karrikins in smoke from burnt plant material, initiating molecular signals to speed up seed germination. The study also found that the receptors play a role in sensing growth hormones in plants, shedding light on the enigmatic karrikin signaling pathway.
Plant cells use RNA signals to coordinate growth, but these signals require a special escort protein to reach the right cells. Without this protein, plants fail to develop properly, highlights a crucial step in understanding how information is exchanged between cells.
A new study reveals that balancing iron and phosphorus levels is crucial to prevent chlorosis, a condition associated with yellowing leaves. The research team found that removing phosphorus can help restore photosynthesis, highlighting the need for more environmentally friendly agricultural practices.
A team of researchers from UC Riverside has discovered how a small molecule called auxin triggers the growth process in plants. By analyzing cell walls, they found that auxin lowers pH levels, causing cells to become acidic and soften, allowing them to expand and grow.
Researchers at Tel Aviv University discovered a central mechanism in plants that helps them deal with drought conditions and water shortages. They found that the ABA signal molecule is stored in inactive state in leaves and released under desired conditions, allowing plants to rapidly respond to changing environmental conditions.
Researchers discovered a novel type of bivalent chromatin that enables plants to quickly produce defense compounds like camalexin in response to pathogens. This understanding could inform strategies to improve crop yields and combat global hunger.
Researchers have identified a key component of plants' light response, allowing them to regulate gene expression and control stem growth. By reducing PIF protein activity, they can slow down stem growth and promote leaf and seed production, leading to increased crop yields and improved food supply.
The Center for Research on Programmable Plant Systems (CROPPS) will develop technologies connected to the internet and cloud to listen to and learn how plants sense and respond to their environments. This two-way communication system aims to help scientists improve crop management by better understanding plant biology.
Researchers found that herbivory and wounding on tomato leaves elicit strong electrical signals, which interact with JA signaling to confer resistance. GLR genes play a crucial role in regulating these signals and JA accumulation.
Researchers discovered a central component of plant threat detection, MSL10, which registers pressure changes and sends warning signals to adjacent leaves. This finding supports the link between electrical and hydraulic signalling in plants.
Scientists have discovered that ferns can actively close their stomata in response to low humidity or the hormone ABA, similar to flowering plants. This finding confirms that the earliest land plants were able to control water loss through stomata, providing valuable insights into plant evolution and climate change adaptation.
The New Roots for Restoration Biology Integration Institute aims to integrate plant traits, communities, and the soil ecosphere to advance restoration of natural and agricultural ecosystems. The project seeks to understand how root traits influence plant interactions with each other and with the soil.
A recent study found that tomato fruits can communicate with the rest of the plant through electrical signals, warning it of caterpillar attacks. This phenomenon may allow for early detection of infestations and more targeted control measures.
Scientists from Würzburg, Germany, have identified a protein in the plant Arabidopsis thaliana that detects and translates acidic conditions into an electrical signal. This discovery could lead to more tolerant crops for waterlogging conditions.
A researcher at Tokyo University of Science discovered a menthol-like compound that enhances plant defense against pests. The compound, valine menthyl ester (ment-Val), can be used as an alternative to chemical pesticides and has shown promise in reducing pest damage to various crops.
Recent discoveries have revealed a complex picture of plant defense, with responses to PRR receptor signaling and NLR signaling extensively overlapping. The two immune branches are now considered to be more intimately connected than previously thought, leading to a re-thought model of separate ETI and PTI pathways.
Researchers have developed a device that can deliver electrical signals to and from plants, enabling the creation of plant-based technological systems. The device can detect and transmit electrical signals to monitor crop health and stimulate plants to perform tasks, such as closing leaves or picking up objects.
Researchers found that beta-cyclocitral produced by plants after herbivore attack increases defense responses and inhibits the production of metabolites for growth in Arabidopsis thaliana. This volatile signal opens up new possibilities for developing herbicides or antimicrobial agents that block the methylerythritol 4-phosphate pathway.
Researchers have discovered how plants use their metabolism to sense time and conserve energy, shedding light on the 'plant clock'. This understanding could help optimize crop growth in various conditions, such as different seasons and latitudes. The study's findings may lead to more reliable food production and improved yields.
Plants have evolved a defense system to warn themselves of predator attacks and ward off damage. Elicitors, such as molecular patterns and saliva proteins, trigger an 'SOS signal', initiating defense responses.
A team of scientists has found that Venus flytrap electrical signals generate magnetic fields, detected using atomic magnetometers. The magnetic signals are weak, but comparable to human nerve impulse signals.
Scientists have discovered a signal that causes roots to stop growing in hard soils, but after disabling it, roots can push through compacted soil. This discovery could help plants grow in damaged soils, reducing crop yields by up to 50%.
Researchers found that plants use rapid oscillations of stems and leaves due to wind to activate molecular switches, allowing them to respond to environmental changes. This discovery highlights the importance of plant sensitivity to mechanical signals, enabling them to prepare for storms.
Researchers have isolated sensory hairs from the Venus flytrap and identified genes that convert mechanical stimuli into electrical signals. The discovery sheds light on how plants can detect and respond to touch, revolutionizing our understanding of plant biology.