Researchers discovered a UV-B receptor that activates proteins to build defense mechanisms, allowing plants to tolerate harmful UV-B rays. Plants also use UV-B rays to influence growth and development, making them essential for survival.
Researchers used multiplexed shotgun genotyping to uncover species relationships within the North American genus Penstemon. The study confirms ancestral hymenoptera pollination and independent transitions to hummingbird pollination, revealing floral diversity and adaptations.
Researchers have discovered that arsenic accumulates in the nuclei of plants' cells at low concentrations, impairing photosynthesis. The toxic metalloid can cause genetic damage by replacing phosphorus in genes.
The Boreal felt lichen, a critically endangered species, is expected to decline by 49% within 25 years if conservation efforts are not increased. Human impacts such as air pollution and habitat destruction are major contributors to the decline.
Research reveals that giant sequoia leaves respond to environmental conditions, with upper crown leaves having more fibers and transfusion tissue. These traits enable the trees to store more carbon and water, promoting growth and resilience in drought conditions.
Researchers have discovered plant mimicry between Alseuosmia pusilla and Pseudowintera colorata, where the unprotected shrub mimics the chemically-defended tree. The study uses a novel approach to quantify leaf shape using morphometric methods, providing evidence of Batesian mimicry in vascular plants.
The Italian Botanical Society has launched an online open-access journal called Italian Botanist, which covers both Italian and international research in botany and mycology. The new journal is part of Pensoft's portfolio and aims to boost scientific value and international visibility.
Researchers at Université de Genève identified a protein Mac1 that plays a key role in recycling photosystem I components to recover iron. In response to nutrient deficiencies, the alga dismantles its photosystems and recycles some of their components.
Researchers found that snails choose seedlings based on dislike for naturally-omitted scents rather than taste. This discovery suggests harnessing these chemicals could provide an eco-friendly solution to protect crop seedlings from pests.
A new film series by Sarah Betcher explores Alaskan indigenous uses of wild plants for food, medicine and construction materials. The 'Ties to Alaska's Wild Plants' project documents Iñupiat traditions and aims to preserve traditional knowledge in the face of climate change.
A region of specific proteins called SPX domain signals the phosphate status to cells, regulating phosphate uptake. InsP signaling molecules interact with SPX domains to control phosphate homeostasis in various organisms.
Researchers at the University of California, Riverside, found that corn grown in home and community gardens in Southern California has higher genetic diversity than commercial seeds. This discovery highlights the importance of preserving genetic resources through diverse farming practices.
The American Journal of Botany Special Issue delves into the latest research on pollen performance, revealing its complex interactions with female tissues, pollinators, and other processes. The studies shed new light on pollen structure, function, and fitness, highlighting its crucial role in plant reproduction.
Researchers at UC Riverside found a new species of tumbleweed with a dramatically expanded geographic range in just a decade. The species, Salsola ryanii, is an allopolyploid formed from hybridization between two invasive species.
Researchers at Sam Houston State University developed a test to individualize marijuana samples using DNA analysis, linking drugs across cases. Pine pollen has also been found to be a viable source of DNA for criminal investigations, persisting on clothing for up to two weeks and helping link suspects or victims to locations.
A new Australian bush tomato species, Solanum watneyi, has been discovered and named after the botanist character in the book and film adaptation of The Martian. The plant was identified as a relative of the potato and its discovery has sparked recognition from the botanical community.
A recent study found that human influence has accelerated the rate of species change in Wisconsin prairies, with some sites having fewer than 18% of original species and more than 60% non-native species. Controlled fires are being shown to be beneficial for restoring native habitat.
Lena Struwe, a Rutgers University botanist, has identified two flowers encased in ancient amber as belonging to a newly discovered species within the Strychnos genus. The discovery highlights the existence of many undiscovered plant species hidden away in natural history collections worldwide.
Vitamin B6 plays a crucial role in nitrogen metabolism, informing plants of their ammonium content and helping regulate its use. This discovery could lead to the development of new methods to prevent overuse of nitrogen-containing fertilizers, which harm the environment.
Scientists have discovered four new species of deep-water algae from Hawaii, which are similar in appearance to limu palahalaha and hold great cultural significance for Native Hawaiians. The newly discovered species were collected between 200-400 feet deep and are believed to redefine our understanding of algal distributions in Hawaii.
Researchers investigate how plants respond to environmental changes and geographical variation, shedding light on their potential for evolution and adaptability. The study aims to improve predictions of selective pressures and failures for wild plants through comparative studies and genetic analysis.
The discovery of Calathea galdamesiana highlights the importance of botanical research and conservation efforts in Panama. The new species is distinguished by its unique leaf shape and ground-dwelling inflorescences, and was discovered during a biological diversity inventory organized by the Panamanian Ministry of the Environment.
Researchers discovered that seeds have recycled a plant protection mechanism called the cuticle to withstand terrestrial aggressions. The cuticle increases seed viability, resistance to reactive oxygen species, and maintains dormant state, allowing seeds to survive and propagate in new environments.
A recent study published in Nature finds a sharp decline in the association of plant and animal species over the last 6,000 years. This shift is attributed to human population growth and agricultural practices, which have led to changes in ecological conditions.
Researchers found small, well-preserved seed embryos in fossil seeds dating back to the Early Cretaceous, supporting the idea that early angiosperms were small opportunistic colonizers. The tiny embryo size suggests that seed dormancy allowed these early plants to survive harsh conditions.
New fossil evidence reveals that Australia's fire-prone shrubland open vegetation originated at least 70 million years ago. This finding rejects the previous notion that rainforests covered Australia until 40 million years ago and instead suggests that native vegetation types evolved under the influence of fires on a drying continent.
A new coffee tree species, Sommera cusucoana, has been discovered in the Critically Endangered Cusuco National Park in Honduras. The species was identified by a team of scientists led by Daniel Kelly and is characterized by its cream-colored flowers and cherry-like fruits.
By creating inside-out plants, scientists can observe the interior cells synthesizing cellulose in high resolution. The study reveals that plant cells need a high density of enzymes and rapid movement across the cell surface to produce cellulose quickly, with significant implications for plant breeding and industries relying on cellulose.
The Pan-European Species-directories Infrastructure (PESI) project provides a harmonized taxonomic reference system and high-quality data sets to efficiently handle big taxonomic data. It integrates five pillars, including knowledge, consensus, standards, data, and dissemination, to standardize taxonomic information across platforms.
A UC Riverside botanist is studying how trees and shrubs respond to extreme drought in California. He aims to understand which species have survived past droughts and which strategies are most effective.
Researchers discovered a network of transporters involved in controlling hormone ABA transport to seed embryos, ensuring optimal germination timing. This knowledge can be integrated into breeding programs to prevent premature germination and reduce economic losses.
Researchers in Spain are developing hypoallergenic parks to combat seasonal allergies, which affect millions worldwide. The study found that common trees in green spaces can cause unhealthy air quality.
Central Wisconsin pine barrens are vanishing as forest canopy covers more than 90% of the sites, with species diversity remaining relatively unchanged but plant composition drastically altered.
Recent research showed that replacing chemical fertilizer with organic manure significantly decreased greenhouse gas emissions. Organic farming improved crop yields while reversing the agriculture ecosystem's role as a carbon source, becoming a carbon sink.
Researchers found that actin fibers run throughout the cell, forming a network of 'roadways' for material transport. The study's findings could help engineer better cotton fibers, improve plant defense against insects, and alter plant architecture.
A team of scientists successfully transferred a receptor gene from Arabidopsis to wheat, demonstrating that the signalling pathways are conserved between monocots and dicots. The resulting gene confers durable resistance to bacterial diseases, with potential applications in breeding wheat for improved disease resistance.
A new surveillance technique has revealed a diverse population of wheat rust fungus in the UK, with some strains being more aggressive and virulent than others. The findings highlight the threat posed to global food security due to climate change and increased globalization.
Researchers at Trinity College Dublin have discovered that naturally occurring plant-friendly fungi can prevent crop-ravishing diseases from spreading and aid plant survival in testing environmental conditions. These 'symbiotic' relationships between barley and the fungi increase plant survival by up to six times.
A new study suggests that China should conduct national conservation horizon scanning to identify potential environmental problems that have not yet been noticed by society. This could help prevent large-scale environmental disasters, such as the serious haze caused by heavy air pollution in northern China and across the Yangtze River ...
Researchers discovered that aquatic bladderworts like Utricularia consume a wide range of prey, including algae and pollen, in addition to small animals. This diverse diet provides essential nutrients for the plant's survival and growth.
A special issue of the American Journal of Botany highlights the importance of basic plant science for pressing global issues like applied agriculture. Research fields include plant ecology, evolution, and phylogenetics, which provide tools for cultivated plant production and sustainable agriculture.
Recent advancements reveal polyploidy's ubiquitous nature, facilitating instant speciation and increasing biodiversity. Genome doubling is now recognized as a crucial evolutionary force, especially in plant lineages.
The project aims to digitize images and data on aquatic and wetland plants, mollusks, and fish from the Great Lakes basin, targeting 2,550 species. The goal is to document species invasions and eventually prevent them.
Researchers discovered that a unique twist in the nectar spur of a bird-pollinated flower allows for more efficient pollen placement on sunbirds' heads and bills. This adaptation increases the likelihood of successful pollination and reduces competition among plant species.
The special issue of Applications in Plant Sciences explores bioinformatic methods to analyze plant morphology. Researchers successfully applied automated classification and identification techniques, geometric morphometrics, and skeleton networks to examine plant form.
New research reveals that plants use mechanical stimulation to respond to beneficial fungi and bacteria, enabling mutual exchanges of signals. This mechanism is essential for the symbiotic relationships between plants and mycorrhizal fungi, as well as legumes with rhizobia.
A 15-year study has revealed astonishing cryptic diversity in the New Zealand kanuka genus Kunzea, with 10 new species identified. The discovery challenges a long-held assumption that a single species was mistakenly merged with Australian relatives.
Researchers link tree height to climate conditions, finding hydraulic limitation constrains maximum tree height under drier conditions, while resource allocation constrains it in moist areas. The study, led by University of Wisconsin-Madison professor Thomas Givnish, examined Eucalyptus species in Victoria state, Australia.
A new statistical model predicts the performance of hybrid rice, revolutionizing hybrid breeding in agriculture. The UC Riverside-led research uses genomic prediction to identify high-performance hybrids, increasing grain production and achieving global food security.
Researchers have identified two groups of ancient bacteria as the source of a critical amino acid pathway used by plants to create essential compounds. This breakthrough sheds light on the complex evolution of plant chemical pathways and may lead to increased production of valuable nutrients and medicinal compounds.
A new study published in PNAS suggests that migratory birds evolved from species that lived year-round in North America. Researchers created a model to analyze the evolutionary changes of migratory bird species and found that most species originated from temperate regions before migrating to tropical areas.
A study by conservation biologists highlights the lack of accessible information on fracking fluid chemistry and spill data, raising concerns about chemical contamination and its impact on plants and wildlife. The authors call for increased transparency and cooperation to minimize environmental damage.
A 2°C rise in temperature could improve photosynthesis and antioxidant protection in plants like Stylosanthes capitata Vogel. Leaf area index increased by 32%, aboveground biomass production by 16%.
Scientists applied a new method to Australia's Acacia genus, revealing biologically important but currently unprotected areas. The study confirmed the Wet Tropics rainforests' importance and identified places of 'super-endemism', where old and new species co-exist.
A team of scientists monitored 14 developmental stages of Arabidopsis thaliana flowers using micro-computed tomography and mass spectrometry, revealing distinct metabolic profiles for each stage. These findings provide new insights into the interaction between developmental processes and metabolism in plant development.
Researchers found that birds consume the male reproductive organs while visiting Axinaea flowers, which are attracted by sugar-rich stamen-appendages. This unique mechanism involves a complex 'bellows' organ for pollen dispersal and differs from known bird pollination systems.
A new study at LMU Munich finds that day-length, rather than temperature, determines the timing of leaf emergence in many plant species. This adaptation helps plants avoid late frosts and allows them to thrive in warmer climates.
A two-year project aims to improve Ugandans' diets by increasing high-quality mushroom spawn availability. Researchers will develop a breeding program and indigenous germplasm bank, addressing concerns of soil contamination and introducing spent mushroom compost evaluation.
Scientists have completed the eucalyptus genome sequence, revealing insights into plant growth rate, wood hardness, and flowering. This breakthrough enables researchers to enhance or suppress traits in the tree for improved biomass yield and stress tolerance.
Researchers from Oregon State University have identified the ancestral home of Phytophthora infestans, a costly and deadly plant disease that causes potato late blight. The discovery provides new avenues to discover resistance genes and helps explain the mechanisms of repeated emergence of this disease.