Articles tagged with Seedlings
A recent WSSA research article reveals that focusing solely on deer or invasive shrubs yields little forest health improvement. Instead, managing both threats is necessary to promote tree regeneration and plant community restoration, according to a study spanning over 10 years in Ohio.
A University of Maryland study reveals that young plants face a hidden trade-off between fighting disease and growing, leading to reduced reproductive fitness. Plants with stronger disease resistance as seedlings produce fewer flowers and seeds over their lifetime.
A CSU study reveals trees are contracting in response to climate change, failing to regenerate in hottest areas and not expanding into cooler climates. Human-assisted tree migration is proposed as a solution to help forests adapt to climate change.
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.
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 new study reveals that nutrient enrichment driven by agriculture and fossil fuel combustion poses a significant risk to tropical forest dynamics. This phenomenon can disrupt forest composition and resilience, particularly in the face of global climate change.
A study by University of California - Davis researchers found that well-timed tree planting can boost forest recovery by up to 200% in hotter, drier areas. However, competition from shrubs can hinder this process, and the outcome depends on climate, soil, and vegetation conditions.
Scientists discovered that gophers, which were introduced to a devastated area after the 1980 eruption, helped regenerate plant and animal life through their digging. The bacteria and fungi they brought to the surface helped plants establish themselves and survive.
Researchers have successfully established new sacred fir forests on a nearby volcano to serve as overwintering sites for monarch butterflies, which are projected to disappear from their current habitats due to global warming.
A new study reveals that two specific genes in the RNA interference pathway play a crucial role in preventing virus transmission from parent to progeny in plants. This discovery could lead to healthier crops and potentially reduce the transmission of diseases like Zika from mothers to human children.
The University of Guam study found that under-plant mirrors can increase available ambient light in shaded areas, leading to improved seedling survival and growth. The innovative protocol uses mirrors instead of colored plastic mulch, resulting in a significant boost in plant performance with minimal costs.
Researchers used tree regeneration patterns to predict changes in US forests' carbon stocks, finding that 29% will lose and 55% will replace carbon. This study identifies vulnerable areas and prioritizes strategies for resilient forest management.
Researchers at Oregon State University found that wildfire smoke can reduce temperature stress on young seedlings, making them more resilient to extreme heat events. The study showed a significant cooling effect of wildfire smoke, similar to an increase in canopy cover, which can provide benefits for tree regeneration.
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.
Scientists monitored seedlings in North Borneo's natural and restored forests, finding low survival rates in logged areas. This suggests that different restoration approaches may have longer-term implications for forest recovery, including carbon sequestration and biodiversity.
A study published in PNAS reveals that light controls the post-transcriptional splicing of genes regulating photosynthesis in mesophyll cells. This process is co-regulated by AtPRMT5 and COP1, allowing plants to adapt to changing light conditions.
Researchers at Eötvös Loránd University investigated how high salt concentrations affect wheat seedlings growing deep in the soil. They found that sodium has the most negative effect, while potassium and calcium chloride salts can be considered more environmentally friendly. High salt concentrations slow down greening process.
Researchers studied how 4-year-old tree species respond to extended drought and heat, finding that different species have varying levels of drought tolerance. The study's findings can help shape forest management policy and understand future landscape changes.
A new study reveals a severe bottleneck in US tree nurseries, with only 56% meeting the volume needed for conservation and reforestation. The lack of diverse species and locally adapted trees hinders efforts to plant billions of trees to combat climate change.
Researchers developed a smart agrochemical delivery platform using biomimetic mineralization, which improves crop yield and fruit zinc content. The platform, named MiZIFs, uses zeolitic imidazolate frameworks to encapsulate a synthetic growth regulator, promoting plant growth and stress tolerance.
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.
Adding Amazonian dark earth to soils increases plant growth by 3-8 times compared to control soil. The nutrient-rich soil also supports a greater biodiversity of beneficial bacteria and archaea, which transform chemical particles into nutrients. This 'secret weapon' could help speed up forest restoration projects worldwide.
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.
Researchers found no strong evidence that underground fungal networks, known as common mycorrhizal networks (CMNs), offer benefits to trees and their seedlings. While CMNs exist, there is limited understanding of their structure and function in the field, leading to questionable claims about resource transfer and seedling survival.
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 have discovered a new height-reducing gene, Rht13, which enables reduced-height wheat varieties to be planted deeper in dry conditions without seedling emergence issues. This breakthrough could lead to more climate-resilient wheat and improved yields.
A new study found that bats play a crucial role in protecting young tree seedlings from insect damage, with three times fewer bugs and five times more defoliation when bats are absent. The research reveals a mutually beneficial relationship between bats and oak trees, with bats serving as a key predator for insects that harm the trees.
A long-term study in Southeast Asian seasonally dry tropical forests found that El Niño-induced drought increased seedling mortality. Despite being more drought-tolerant than rainforests, SDTFs experienced higher mortality rates under severe and prolonged drought conditions.
A europium-based thin-film coating has been developed to convert UV light to red light, accelerating plant growth. The technology was tested on Swiss chard plants and Japanese larch trees, showing a 1.2-1.4 times greater plant height and biomass in winter conditions.
Researchers studied post-wildfire regeneration in the northern Rocky Mountains, discovering that cool and moist conditions promote seedling growth. Burned trees provide vital functions, including shade and attracting woodpeckers, while seeds can survive even if the tree dies.
Researchers have identified four genes in corn and Arabidopsis that regulate root growth in response to gravity, a trait essential for drought tolerance and efficient water use. The study's approach, leveraging genomic comparisons between distantly related species, has the potential to be applied to other traits.
A new study reveals that conifers release substantial quantities of volatile organic compounds in response to bark-feeding weevils, providing cues to neighboring seedlings. This complex communication process is altered by air pollution.
Researchers found that arctic shrub growth is limited by seed dispersal and fire, not just environmental suitability. The study used high-resolution satellite imagery to estimate shrub expansion in the Arctic region, revealing a discrepancy with previous models.
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 new study reveals that temperate rainforests can play a crucial role in combating climate change by sequestering carbon and mitigating flooding. However, the research also shows that natural expansion of these ecosystems is unlikely to meet UK targets due to fragmentation and degradation.
A study by Brazilian researchers found that these large mammals help regulate plant diversity, productivity, and biomass in understory areas. The spatial structure of plant communities is also influenced, with the Jussara palm playing a key role in attracting animals and dispersing seeds.
A new diagnostic guide for pythium damping-off and root and stem rot of cucurbits has been published, providing a concise resource for growers, diagnosticians, and plant pathologists. The guide summarizes techniques for isolating, identifying, and testing Pythium isolates to combat these diseases.
A recent study has revealed that Fusarium wilt of cotton is more aggressive and diverse than previously understood, affecting Pima and Upland varieties. The researchers identified a population shift towards FOV4, a fourth race of the fungus, which has overcome some resistance in commercial Pima varieties.
Plant biologists at Washington University in St. Louis have developed the first artificial scaffolds that can support individual plant cells, mimicking the properties of plant cell walls. The scaffolds demonstrate promising results for studying plant cell adhesion and growth.
Scientists at KU Leuven developed a method to multiply coconut trees faster and store them more efficiently, preserving genetic diversity and meeting the demand for coconuts. The technique allows thousands of new specimens with the same genetic profile to be obtained, offering potential for coconut plantations worldwide.
Researchers at KU Leuven and the Alliance of Bioversity International have developed a method to multiply coconut trees faster and store them more efficiently in gene banks. This technique allows for the preservation of coconut shoots for eternity through cryopreservation, ensuring the long-term conservation of genetic diversity.
Scientists at Tokyo University of Science discovered endophytic bacteria that can survive extreme conditions within passion fruit seeds. The bacteria were isolated from seedlings grown from cut seeds and found to possess biocatalytic activities related to the metabolism of secondary metabolites, such as resveratrol and piceatannol.
Research finds herbivores weaken early emergers in California grass species, offsetting advantage of early germination. This discovery highlights the role of herbivory in shaping natural selection and evolutionary responses to global environmental changes.
PIF proteins play organ-specific roles in regulating cell division in apical hooks and cotyledons, but not in hypocotyls. Cytokinesis is involved in the apical hook opening, and PIF proteins directly bind to the promoter of BUB3.1, a key regulator of microtubule reorganization during cytokinesis.
A recent study published in the Proceedings of the Royal Society B found that human noise pollution has a lasting impact on plant communities, with decreased seedlings and saplings years after noise removal. The effects persist even after noise is removed from the landscape.
Scientists have discovered that a critically endangered tree species on Guam modifies its leaf function to best exploit prevailing light conditions. The findings provide new insights into the adaptations of trees in response to changing environmental factors.
A study on the eradication of black rats from Palmyra Atoll found a 14-fold increase in seedling biomass, mostly composed of juvenile coconut palms. The removal of rats allowed native species to thrive, but also led to an invasion of coconut palms, which can alter island ecology and deprive native birds of nutrients.
Research shows that information campaigns and free seedlings can encourage diversification in oil palm plantations, increasing tree planting and survival rates. The study emphasizes the need for policies that consider both supply-side and demand-side impacts to reduce environmental degradation.
Researchers used a synchrotron to take detailed X-ray images of ponderosa pine seedlings at various hydration stages. The findings show that the tissue surrounding the xylem, not the xylem itself, dries out when seedlings lose water, revealing new insights into tree seedling growth.
Interplanting native tree species like rosewood and amarillo with teak in Central America's nutrient-poor soils improves soil health, increases water management, and boosts biodiversity. These findings suggest a more sustainable approach to reforestation and may protect the Panama Canal from flooding and drought.
Researchers found that native 'ohi'a seedlings can survive for at least a year in areas with active mortality from Rapid 'ohi'a Death, a fungal disease devastating to Hawaiian forests. Seedlings were six times more likely to die if weeds were allowed to grow around them.
A new study found that commercially available genetic tests for determining hemp plant sex may not be accurate, which could increase yields and reduce prices of CBD production. Researchers at Salisbury University tested three primer pairs and found two to be effective in identifying male seedlings.
Researchers examined spatial patterns of seeds and surviving seedlings to understand mechanisms creating these patterns and potential for plant species coexistence. The study suggests that host-specific natural enemies may inhibit seedling survival near parent trees, leading to regular spacing of plants.
A study by Michigan State University scientists identifies oomycetes as the most abundant seedling pathogens in corn, enabling targeted approaches for disease management. The research has significant implications for breeding hybrids with improved root rot resistance and fungicide sensitivity testing.
Research reveals that coniferous forests struggle to recover after wildfires due to limited seed availability, particularly near severe burn zones. Warm and dry conditions further impede new tree seedling establishment. Land managers are advised to concentrate reforestation efforts in cool, wet areas.
Researchers at Wake Forest University's Center for Amazonian Scientific Innovation found that biochar combined with fertilizer significantly improved height and diameter growth of tree seedlings. The treatment also increased the number of leaves developed by the seedlings.
A field experiment in California's 2017-2018 winter drought revealed a strong correlation between seedling root length and mortality. In contrast, easily measurable adult traits showed only weak correlations with seedling mortality, suggesting that traditional plant traits may not predict ecosystem responses to environmental stress.
The Dauphin Island Sea Lab is leading a five-year project to map and restore SAV in coastal Alabama, aiming to cut the frequency of mapping from every six years to twice within a six-eight year period. The project will also enhance educational resources and cover the restoration of three zones, including areas prone to erosion.