Articles tagged with Arabidopsis
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Researchers discovered that Arabidopsis plants boost their immune system in the morning to prepare for the greatest fungal spore release. The daily cycle of defense compounds is safer and more efficient than constant production, allowing plants to adapt to pathogens' schedules.
Researchers have discovered two proteins, Feronia and Nortia, crucial for both fertilization and resistance to powdery mildew infections in plants. These proteins, essential for seed formation, also facilitate fungal invasion, making it challenging to breed resistant yet fertile plants.
Researchers have identified a miniature ecosystem consisting of a plant and a tiny fly that spends its entire life cycle on the plant. The discovery provides a model system for studying plant-insect interactions on a genetic and molecular level.
Researchers from Warwick University isolated a gene responsible for regulating CONSTANS expression, a key inducer of flowering in Arabidopsis. The discovery could enable more predictable flowering and better scheduling of crops.
A team of researchers discovered the molecular mechanisms governing Gerbera's unique inflorescence structure, characterized by three different flower types. The study highlights an expanded gene family that likely plays a new role in the formation of this complex structure, differing from Arabidopsis species.
A Purdue University scientist has discovered a long-sought gene that controls soybean stem growth, allowing for the creation of new plant varieties with desirable characteristics. The gene, Dt1, was found to be responsible for determining whether a soybean's stem continues to grow after flowering.
Researchers may be able to induce apomixis in sexually reproducing plants, a process that produces genetically identical seeds without meiosis. This breakthrough has significant implications for crop improvement and could reduce the need for expensive seed purchases.
Scientists have identified a specific N-glycan that enables arabidopsis plants to recognize and resist bacterial infections. This discovery could lead to the development of new plant varieties with built-in immunity against diseases.
A US-German team studied genetic changes in Arabidopsis thaliana over 30 generations, finding that new mutations occur frequently, with an average of one per genome per generation. The study also reveals that not all parts of the genome are equally affected and provides new estimates for when species split up.
Scientists found an inverse relationship between gene duplication and alternative splicing in plants, with implications for diversity in animals and humans. The study reveals distinct defense strategies between fast-growing and woody perennial trees.
Researchers have discovered how a 'genetic symphony' of genes affects plant development, enabling potential disease resistance and increased yields. The study found that combining different ACS genes regulates ethylene production, which impacts various aspects of plant growth.
The updated TAIR9 genome release includes detailed information on all 33,518 genes of Arabidopsis thaliana, including 114 newly discovered genes and 168 new pseudogenes. The new features promise to accelerate research on designing new crops for food, biofuels, industrial materials, and medicines.
The American Society of Plant Biologists (ASPB) awarded 15 students with the 2009 Summer Undergraduate Research Fellowship to conduct meaningful research in plant biology. The fellowship recipients included Kevin Cooper, Ying Goh, Sharon Holifield, Emily Lin, Dianne Pater, Evan Pratt, and Shelley Sianta, among others.
A three-year NSF grant will help improve protein production in crops through research on Arabidopsis gene conversion. The study aims to understand how plants control protein synthesis and identify key steps and factors involved.
Researchers found a naturally occurring compound, azelaic acid, that primes plants' immune systems, allowing them to mount faster and stronger defense responses. The compound, already tested in humans for skin conditions, could lead to an inexpensive and environmentally safe way to improve crop resistance.
Researchers found that reduced light quality leads to decreased sensitivity to jasmonic acid, a hormone involved in plant defense. This allows plants to redirect resources away from defense and towards growth, but may increase vulnerability to herbivores in densely planted crops.
A team of scientists has discovered unusual differences in the natural mechanisms that turn off genes in corn, providing new insight into how the crop protects itself from damage. The research found an extra layer of protective small RNAs in corn, which play a key role in repressing repetitive sequences, including mobile DNA elements.
A team of plant geneticists has identified a gene called sparse inflorescence1 (spi1) essential in controlling the development of the maize plant's growth hormone auxin synthesis. This discovery sheds light on the complex process of organ formation and development in maize.
Researchers at the University of Missouri have uncovered the genetic pathway that controls abscission in plants, shedding light on this fundamental physiological process. The discovery has significant implications for regulating fruit quality and pre-harvest fruit drop in commercial industries.
Researchers discovered a previously thought non-essential gene linked to salt tolerance in arabidopsis, which may aid in developing plants resistant to high salt levels. The finding clarifies the role of complex-N-glycan and could lead to improved crop yields in salt-affected areas.
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.
The partnership aims to reduce the 'flood of information' in TAIR by allowing researchers to directly enter their own data through a web interface. This will increase data input from Plant Physiology articles, enhancing the overall dataset in TAIR.
Researchers at Cold Spring Harbor Laboratory have identified a new class of long short interfering RNAs (lsiRNAs) in Arabidopsis that are induced by bacterial infection or specific growth conditions. These lsiRNAs have unique biogenesis and target degradation pathways, suggesting they may play important roles in host immunity.
Scientists have developed a new type of rice that grows better and uses water more efficiently than other rice crops. The HARDY gene improves key features of the grain crop, leading to increased biomass under both drought and non-drought conditions.
Researchers find that mis-regulated immune systems can establish reproductive barriers in plants, leading to hybrid necrosis. This phenomenon challenges the classical definition of a species and suggests that speciation may be a gradual process.
Researchers at the University of North Carolina and Max Planck Institute discovered that an autoimmune response can create a barrier to producing viable offspring in plants. This phenomenon, known as hybrid necrosis, can be triggered by specific gene combinations, suggesting a potential early step in the development of new species.
A widely studied plant species has revised its understanding of sex evolution and genetic heritage, with self-pollination emerging at least a million years ago. This finding contradicts previous estimates and suggests that sex may be more trouble than it's worth in plant evolution.
Researchers found nearly four percent of Arabidopsis genes are variable and some are non-functional, revealing a highly adaptable plant with a streamlined genome. The study suggests that environmental conditions drive gene variation, enabling plants to adapt to different climates.
Researchers have identified three key proteins that work together to execute plant innate immunity in the mustard weed Arabidopsis. These proteins are homologous to human spliceosome-associated components, suggesting potential parallels between animal and plant immune systems.
Two studies published in The Plant Cell reveal the role of NAC transcription factors NST1 and NST3 in regulating secondary wall thickening in woody tissues of Arabidopsis. These genes are found to be redundantly involved in promoting secondary wall formation, with one gene compensating for the loss of function of the other.
Researchers found that different regions require varying amounts of cold to delay flowering, with some requiring as little as four weeks of cold. This discovery could help breed crops that can thrive in changing climates.
Researchers at Purdue University have developed a new approach to rapidly identify the gene responsible for high sodium levels in plants, shedding light on the likely origin of such differences. The method combines DNA microarrays with genetic databases to pinpoint genetic variations, offering a tool to study diverse plant properties.
Researchers create transgenic Arabidopsis plants by introducing genes into bacteria Agrobacterium, which then infect the plant cells. This method allows scientists to identify and characterize specific gene functions in plants. The technique enables the development of pest-resistant crops, vitamin-enriched foods, and more.
Researchers have successfully unraveled the first tree genome, that of the poplar, revealing approximately 45,000 genes. This knowledge can help accelerate bio-ethanol production and improve trees' efficiency in processing biomass for paper and energy.
Researchers at the Salk Institute and UCLA developed a high-density microarray technique to capture genome-wide DNA methylation patterns in Arabidopsis, a plant species. This breakthrough has significant implications for understanding human genome analysis, stem cell biology, and therapeutic cloning.
The European Commission has allocated €12 million to the AGRON-OMICS project, a collaborative research effort aiming to enhance understanding of plant growth and development. The project will focus on the model plant Arabidopsis thaliana, exploring molecular components controlling growth and their interactions.
Researchers have discovered how plants use genes to fight off powdery mildew disease, a common fungal infection that affects over 9,000 species of plants. By disabling protective genes in Arabidopsis thaliana, the researchers found that a complex gene system can signal cell death and spare healthy cells from infection.
Researchers will determine the functions of approximately 4,400 nuclear genes in Arabidopsis, focusing on chloroplast-targeted proteins that trigger photosynthesis. This project could lead to significant advances in human health and agriculture by optimizing plant productivity and nutrient production.
Researchers from the University of Delaware made a breakthrough in studying small RNAs by applying Massively Parallel Signature Sequencing (MPSS) to Arabidopsis. The study identified over 75,000 different small RNA sequences and provided quantitative information on their abundance and regulation.
Researchers at Yale and Cold Spring Harbor Laboratory have identified 80 genes active in petal and stamen development using gene trapping. These findings provide insights into how gene activity is allocated during flower development, shedding light on critical roles in plant reproduction like cross-pollination and seed production.
A new molecule Pep1 has been isolated from Arabidopsis thaliana, a plant species favored for experimentation, and found in various crop species. The Pep1 peptide regulates pathogen defense in plants, increasing their resistance to diseases and enhancing overall growth.
Researchers at Virginia Tech have identified key genes that regulate wood development using the small plant Arabidopsis. By analyzing the expression of over 25,000 genes, they were able to narrow down the number of potential wood formation genes to less than 500, with a focus on transcription factors.
A recent study by Gary Ditta and coworkers has identified a gene, SEP4, that plays a crucial role in converting leaf-like organs into flowers. The researchers found that the loss of activity of all four closely related genes results in the conversion of flower organs toward leaves.
Scientists from VIB are using RNAi technology to study the function of genes in Arabidopsis thaliana, a model plant with 29,000 genes. The goal is to identify the function of all genes, which will shed light on biological processes in plants and humans.
A team led by Brown ecologist will study how Arabidopsis integrates environmental signals to flower at favorable times. The research aims to improve food production, understand climate change's impact on crops and wild plants, and shed light on genetic variation.
The research team, led by K-State and including institutions in Europe and the US, will study how plants adapt to changing environmental conditions. By understanding these adaptations, scientists can predict plant behavior and develop strategies for conservation and crop improvement.
A groundbreaking study reveals a comprehensive genetic map of important tree genes, enabling scientists to unlock the secrets of tree biology. The database contains over 102,000 gene sequences from the Populus genus, allowing researchers to explore the genetic functions of trees and their responses to environmental stresses.
A Virginia Tech researcher has been awarded $1.8 million to investigate the Arabidopsis genome, a key plant model organism. The project aims to understand the function of SABATH faculty of methyltransferase genes in plants, which could lead to breakthroughs in plant physiology and reproduction.
A team led by Philip Benfey created a detailed mosaic of cells showing where and when 22,000 genes are activated within growing root tissue. The results provide the first global resolution of gene expression for any organism.
Researchers at Duke University have developed a new technique to map the activity of thousands of genes in the roots of Arabidopsis plants, offering insights into how complex tissues develop from a single cell. The study reveals that nearly half of all expressed genes in the root show tissue-specific expression.
Researchers found that Arabidopsis plants from different latitudes exhibit significant variations in their circadian clocks, suggesting an adaptation to optimize fitness. The study identified five chromosomal regions contributing to the clock mechanism, including multiple genes that work together to control different parts of the process.
A recent study published in Science has identified nearly 6,000 protein-encoding genes in the tiny mustard weed Arabidopsis, revolutionizing plant genetics research. This breakthrough allows researchers to quickly identify and modify desirable traits in other plants using these genes.
Virginia Tech leads a national initiative to enlist high school students in analyzing plant genes, leveraging Arabidopsis thaliana's 25,500 genes. The Partnership for Research and Education in Plants aims to bridge the gap between university-based scientists and high school science labs.
Scientists have inactivated almost three-quarters of all genes in the genome of Arabidopsis thaliana, creating a public database of genome-wide gene mutations. The study provides significant new information on the function of individual and groups of genes.
Researchers can now study specific gene function in Arabidopsis by quickly searching for and ordering genetically modified plants with knocked-out genes. Over 21,700 genes were identified as having been turned off using insertional mutagenesis, representing a significant advancement in understanding plant genome functions.
The Salk Institute's latest study, led by Joseph Ecker, provides a detailed map of Arabidopsis genes and their functions. The team has also identified key molecular pathways involved in ethylene gas signaling, which is crucial for plant growth, yield, and drought tolerance.
Researchers at Purdue University have identified nine specific genes that are shut off in plants before they develop from embryos to adults. These genes, part of the LEAFY COTYLEDON (LEC) class, are controlled by a master regulator called PKL, which turns them off to allow plants to develop root and leaf systems. The study's findings m...
Researchers at North Carolina State University found that loblolly pines and Arabidopsis thaliana share 90% of their genes, despite being vastly different in appearance. This suggests that woody and herbaceous plants may have evolved using the same genetic mechanisms.
Researchers at Purdue University have identified a gene that controls the production of plants' outermost protective coating. By manipulating this gene, they may be able to create crops with increased drought resistance. The study found that altering the gene's expression can result in thicker or more rigid cuticles, reducing water los...
Researchers found that Arabidopsis plants respond differently to light and temperature signals, with one gene focused on photosynthesis and the other sensitive to temperature. This discovery suggests that plants have multiple internal clocks operating within a single tissue, allowing them to make critical decisions about flowering.