Articles tagged with Seed Germination
UPL3 E3 ubiquitin ligase promotes light-induced seed germination by degrading PIF1. The study reveals a critical role for UPL3 in mediating PIF1 degradation through the 26S proteasome pathway.
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.
Plant cells rely on fatty acids during seed to seedling stage; PEX11 protein helps regulate peroxisome size changes. Researchers create mutants with altered PEX11 genes, observing massive peroxisomes that don't shrink back down, revealing the protein's critical role in plant growth.
A study by Kobe University discovered that wild orchid seeds require fungi from decaying logs to germinate. The team found a consistent association between young and adult plants with coral-shaped rhizomes and wood-decaying fungi, suggesting an essential role for these fungi in the orchid's nutritional needs.
Researchers at the University of Missouri discovered that soybeans employ differential transpiration as a natural defense strategy to cool reproductive tissues under extreme weather conditions. This adaptation allows plants to save significant amounts of water while protecting their flowers and seed pods.
Seeds can achieve speeds up to 29 miles per hour and reach shooting distances of up to 12 meters, propelled by high-pressure explosions. The fruit stem straightens up during ripening, creating an optimal angle for maximum distance.
Researchers uncover pivotal role of ZmCCT2 in regulating maize mesocotyl length and adapting to high altitudes. Significant associations between genetic variations and mesocotyl lengths were found, highlighting the essential function of ZmCCT2 in promoting cell elongation.
Saharan mustard is overwhelming native plants' seed bank, reducing biodiversity and weakening ecosystems. The invasive species can crowd out native species, altering ecosystem function.
A new species of manzanita has been discovered on the central coast of California, but its survival is already at risk due to urban development. The species, Arctostaphylos nipumu, lacks a protective burl that allows some other manzanitas to resprout after wildfires.
A new study from Holden Forests & Gardens reveals that climate warming can change the order of seed germination, giving more responsive plants an advantage and ultimately altering plant communities. This shift in 'assembly order' could have a lasting impact on ecosystem function and species composition.
Researchers found that even large portions of seed reserves can be removed without affecting germination. However, seedling growth is impacted by increased granivory, leading to thinner leaves and reduced mechanical defenses. Large seed size serves as a defense mechanism, balancing dispersal and predation demands.
A recent study from the University of Guam found that cycad cotyledons contribute to successful seedling growth through photosynthesis. The research reveals a robust cotyledon strategy for improving seedling persistence and biodiversity in competitive forest communities.
A recent UC Riverside study found that raking dead grass can boost California's native wildflower diversity, reducing fire danger and increasing plant community changes. The simple, low-cost method of removing invasive grass layers allows native seeds to germinate and grow.
Researchers found that maritime pine seeds retain memories of temperature conditions experienced during embryonic development, influencing gene expression and potentially affecting tree growth. The study suggests epigenetic mechanisms could play a crucial role in helping trees adapt to environmental stressors and climate change.
A Dartmouth-led study reveals the fundamental genetic pathways and biological mechanisms behind the corpse flower's heat production and odorous chemicals. The researchers identify a new component of the corpse flower's odor, an organic chemical called putrescine, which is released when the plant blooms.
A team of physicists analyzed biophotons from lentil seeds to test if they play a role in plant information transport. Their statistical analyses support the emergence of plant 'intelligence', where biophotonic emission carries information for communication and cooperation among cells.
A study by UNESP found that smoke from two concentrations stimulates germination in 32% of plant species, with some grasses growing faster. The results could aid restoration strategies for degraded areas and offer a competitive advantage to certain Cerrado species after fires.
Research found that cold-tolerant melon seeds exhibit higher neutral invertase activity, enabling sustained sucrose decomposition into glucose, supporting seed germination. Soaking seeds in exogenous glucose improves germination rates under low temperatures.
Researchers found that combining aquaponic wastewaters with hydrothermal liquefaction aqueous phase (HTL-AP) solutions up to 8% can support plant growth without inhibiting germination. This alternative nutrient source has the potential to increase circularity in food production systems and reduce reliance on chemical fertilizers.
Researchers at CRAG have made groundbreaking discoveries on seed germination, identifying key regulatory features and non-coding RNAs that drive the process. The study reveals that transcription restarts much earlier than previously thought, opening up new avenues for investigation into the role of the non-coding genome.
Researchers at the University of Zurich have discovered a signal that activates the female gamete in thale cress, a model plant species. This breakthrough could lead to the development of apomixis, a form of asexual reproduction that would allow crop plants to be propagated more easily and efficiently.
Researchers develop a mathematical model that analyzes the future survival of plants in a changing climate by studying how far wind can carry seeds. The model provides fast and reliable predictions of seed movement, considering factors like seed type, plant height, and wind speed.
Researchers found that over 80% of the bamboo's flowering culms did not produce viable seeds, indicating a lack of sexual regeneration via germination. This may lead to widespread ecological changes and loss of a valuable resource.
The study reveals two OsRALF peptides essential for pollen tube germination and elongation, crucial for double fertilization. Exogenous application of these peptides enhances pollen tube elongation, while inhibiting germination at higher concentrations.
Researchers at KAUST have isolated a desert microbial strain that enhances drought resilience in Arabidopsis and alfalfa, promoting water use efficiency without affecting crop yields. The microbes modify epigenetic status of drought stress genes and actively change plant root architecture.
A new study by Rice University bioscientists reveals how plant cells collaborate to fuel growth, shedding light on corresponding mechanisms in human cells. The findings focus on the role of enzyme MIEL1 and its human counterpart PIRH2 in breaking down protein coatings on lipid droplets.
A study by the University of Tsukuba found that changes in F1-hybrid metabolites lead to increased biomass in Arabidopsis plants. The researchers analyzed 202 Arabidopsis lines and found altered production of intermediate metabolites of the TCA cycle in high-heterosis combinations.
Researchers from Washington University in St. Louis suggest that ancient humans may have chosen certain wild plants for domestication based on their ability to be easily 'tamed'. Plants with high plasticity, or the capacity to respond to environmental changes, can produce more yields and easier-to-sprout seeds.
A team of MIT researchers has created an 'unclonable' label system to combat counterfeit seeds in Africa, where fake seeds can cost farmers up to two-thirds of expected crop yields. The system uses biodegradable silk-based tags with unique codes that cannot be replicated.
Researchers at UNIGE discovered that seeds have an internal thermometer-like mechanism to delay or block germination if temperatures are too high. This mechanism is implemented by the endosperm tissue, which controls germination and seedling growth.
Phytochromes play a dual role in seed germination of Aethionema arabicum, stimulating but also inhibiting germination. The study reveals that high light intensity and duration inhibit germination, while short exposure favors germination, indicating a genetic basis for adaptation to environmental requirements.
A team of researchers at Kyoto University found that the brown lemur is responsible for regenerating large fruit trees in Madagascar's Ankarafantsika National Park. The study shows that lemur seed dispersal can lead to a 1.5% survival rate of seeds, contributing significantly to forest diversity.
Researchers discover chemical inhibitor TIS108 significantly lowers Striga infestation without affecting plant growth or grain yield. The study shows canonical strigolactones contribute to seed germination in root parasitic weeds and play a major role in stimulating invasion by Striga.
A new study found that cover crops grown concurrently with cash crops can effectively reduce weed biomass in California orchards. The researchers discovered that planting cover crops early in the growing season, when adequate moisture is available, results in predictable and abundant plant cover.
Researchers from University of Göttingen found that plant water stress, not termites, causes Namibia's fairy circles. The grasses within the circles died immediately after rainfall due to strong depletion of water, while surrounding grasses thrived.
A team of Brazilian researchers has developed a novel technique using light and artificial intelligence to identify the maturity stages of soybean seeds. The method utilizes chlorophyll fluorescence and machine learning algorithms to classify commercial seeds with high accuracy. This innovation avoids destroying seeds, which are then c...
Rapid seed dispersal by hornets is essential for the short-lived seeds of Aquilaria sinensis due to their vulnerability to desiccation. The hornets consume fruit elaiosomes and deposit seeds in damp shade, allowing germination.
Researchers find that microplastics impede internal activity of seeds during germination, leading to stunted growth. The study used a novel technique called biospeckle optical coherence tomography (bOCT) to demonstrate the effects of polyethylene microplastics on lentil seedlings.
A team from KAUST has developed a low-cost system for imaging plant growth dynamics noninvasively and at high throughput. The Mutiple XL ab system combines computer vision and pattern recognition technologies with machine learning to analyze and quantify root growth dynamics.
Researchers discovered a bZIP23-PER1A module that regulates rice seed vigor, improving crop quality. They found two cultivars with huge phenotypic differences, Kasalath and Jigeng88, and identified a novel detoxification pathway to enhance seed vigor.
A recent study revealed that current tomato cultivars are vulnerable to the emerging ToBRFV, a damaging virus affecting tomatoes and other crops. The research also developed a molecular detection tool to identify infectious virus particles carried on contaminated seeds.
Researchers found that local gravitational tides modulate the cyclical behavior of organisms, even in the absence of other rhythmic influences. The study questions the validity of free-run experiments and highlights the importance of considering gravitational oscillations in biological research.
Researchers have uncovered the first fossil evidence of a rare botanical condition known as precocious germination, where seeds sprout before leaving the fruit. A 40-million-year-old pine cone encased in Baltic amber shows embryonic stems emerging from the seeds, providing insight into plant biology and ecology.
A new chemical discovered by a UC Riverside team helps dormant seeds germinate, increasing crop yields and food supply. The compound, Antabactin, blocks ABA hormone receptors, allowing seeds to sprout in response to environmental stressors.
Researchers found that genetically identical seeds can have varying germination times due to the ABA-GA network, which allows for a 'bistable switch' behavior. This variability in germination time can be beneficial for plants growing in unpredictable environments, such as agriculture and natural areas.
Researchers successfully germinated seven ancient Judean date palm seeds from archaeological sites, gaining genetic insights into the evolution of crops. The study suggests that hybridization between date palms and wild Cretan palms occurred over 2,200 years ago, influencing agricultural practices.
Researchers at NYU Abu Dhabi have successfully sequenced the genome of previously extinct date palm varieties that lived over 2,000 years ago. The study reveals how these plants evolved over time, including increasing levels of genes from another species due to hybridization.
Recent experiments by Alexander Volkov have shown that plasma delivery improves seed surface properties, accelerating germination and water uptake. The study suggests that plasma could increase yields in countries with harsh winters, particularly for unusual or high-value crops.
A study by UNSW researchers found that tropical plants are more at risk from climate change than previously thought, with over 20% predicted to face temperatures above their upper limit. This is because they are near their maximum seed germination temperatures, and even small temperature increases could push them over the edge.
A recent study from the University of Illinois found that the Harrington Seed Destructor (HSD) killed nearly 100% of US agronomic weed seeds in a lab study. The HSD, an impact mill developed and widely used in Australia, was tested on common US weeds without field conditions. The study shows that even damaged seeds don
Researchers discovered that thiol redox switches play a central role in enabling energy release efficiently during seed germination. These molecular switches kick-start mitochondrial energy metabolism, allowing seeds to conserve stored energy reserves for years or even centuries.
A team of researchers at Nagoya University has discovered a highly potent and selective molecule, SPL7, that can induce suicidal germination in Striga seeds, allowing for effective control over the parasitic weed. This breakthrough could alleviate Striga infestation and save crop losses worth billions of US dollars every year.
Researchers discovered a crucial gene that regulates seed germination based on light conditions, enhancing plant survival. The MFT gene helps seeds decide whether to germinate, allowing them to thrive in optimal environments.
Researchers at Université de Genève reveal the mechanism of seed germination, where proplastids differentiate into chloroplasts within 48 hours. The process is controlled by growth hormone gibberellic acid and protein TOC159, ensuring rapid transition to autonomous growth.
Researchers at King Abdullah University of Science & Technology (KAUST) have developed the first specific inhibitor for uncontrollable plant pest Striga hermonthica, a parasitic plant affecting global food security. The breakthrough discovery uses a binding molecule to inhibit seed germination.
Researchers have created a low-cost, DIY kit for growing orchids from seed, which can lead to the preservation of endangered species and efficient seed conservation. The kit's high humidity levels and symbiotic mycorrhizal fungi facilitate germination and growth.
A new study reveals a group of cells acting as a 'brain' in plant embryos, assessing environmental conditions and dictating germination timing. The plant's decision on when to germinate is controlled by two types of cells promoting dormancy or germination, communicating through hormone signals.
Researchers developed a study to determine physical dormancy breaking mechanisms of uhaloa seeds, which can be achieved through manual and mechanical scarification, dry heat exposure, or hot water immersion. The optimal protocol is using an electric drum scarifier with 80-grit sandpaper for 15-30 seconds to achieve high germination rates.
A low-dose application of nonionic surfactant applied directly to seed as a component of a seed treatment significantly increases seed germination rate and synchrony. Under deficit irrigation conditions, this coating promotes seedling emergence and plant growth, offering potential for water conservation in urban landscapes.
Researchers from Iowa State University have developed effective propagation protocols for swamp tupelo (Nyssa biflora) and black gum (Nyssa sylvatica), a native Nyssa species. The study found that cold stratification enhances speed and uniformity of germination, while extracts of fruit pulp inhibit seed germination.