Articles tagged with Chloroplasts
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A recent study mapped the evolutionary history of Asia-Pacific Balanophora species, revealing its retained plastids despite losing photosynthetic genes. This allows it to survive entirely as a parasite on specific tree roots, with some species producing seeds without fertilization.
Scientists have created a micro-algal platform that allows for automated and fast testing of chloroplast genetic modifications, opening up plant chloroplasts to high-throughput applications. This platform enables researchers to fine-tune genetic circuits and identify which modifications have real potential.
Researchers at DGIST discovered a new regulatory factor called 'chlorella RNA' that regulates the aging of plant leaves. The study found that chlorella RNA affects the transcriptional regulation activity of chloroplasts, leading to a decline in photosynthetic function and degradation of chloroplasts.
The study found that DLDG1 regulates NPQ by controlling proton conductivity within the thylakoid membrane through CFo-CF1 ATP synthase activity. The dldg1hope2 double mutant showed faster NPQ induction than the hope2 mutant, indicating a complex relationship between DLDG1 and NPQ regulation.
Researchers from Chiba University identified a previously unreported gene, LIRI1, which plays a crucial role in regulating the balance between starch and lipid storage in plant leaves. The study suggests that LIRI1 promotes carbon allocation by activating starch production and inhibiting starch degradation.
Chloroplast NTT proteins facilitate ATP/ADP transfer, playing a crucial role in photosynthesis and crop yields. The study's findings support the endosymbiotic theory, suggesting that chloroplasts evolved from cyanobacteria through horizontal gene transfer.
Researchers analyzed chloroplast genomes of cacao trees from northern Peru to determine the species' age and diversity. The study found that the current known diversity diversified during the Pliocene or Miocene epochs, approximately 7.5 million years ago.
A new study identifies the crucial role of BoYgl-2 in chloroplast RNA editing and chlorophyll biosynthesis, leading to innovative crop breeding strategies for enhanced plant productivity and agricultural sustainability. The research provides a molecular blueprint for understanding leaf color formation in cabbage.
Researchers found that ornamental never never plants can store water for up to 45 days, maintaining photosynthetic activity and chloroplast structure unchanged. This helps them adapt to drought conditions, a challenge for many crops.
A new study explores the origin of chloroplasts, finding they likely produced chemical energy for cells before shifting to carbon assimilation. The researchers used bioinformatics methods and experiments to determine that plastids from red algae and glaucophytes resemble more ancient stages of evolution.
Researchers have shed new light on gene expression by visualizing ribosomes in unprecedented detail. The study reveals a molecular mechanism for mRNA delivery to the ribosome, advancing our understanding of gene expression at the molecular level.
Researchers found that the cell's chloroplast shrinks by 40% in bright white light, minimizing damage. The structure responsible is a network of thin filaments that can contract and expand in all directions.
A study on the genetic diversity of mango species reveals extensive cross-hybridization among species, offering implications for breeding and conservation efforts. The research provides a detailed genetic framework for understanding how hybridization has shaped the Mangifera genus, shedding light on the evolution of mangoes.
Scientists have successfully integrated chloroplasts from algae into hamster cells, allowing the cells to undergo photosynthesis and producing oxygen and energy. This breakthrough could lead to the development of artificial tissues that can grow in size without limitations due to low oxygen levels, paving the way for innovative biotech...
Researchers develop novel method to study ribosomes producing D1 protein, identifying 140 additional proteins involved in its assembly. STIC2 and SRP54 proteins play key roles in correct incorporation of central proteins into thylakoid membrane.
A University of Bonn study reveals that plants use special molecules called Tipp-Ex proteins to correct defective gene copies. However, these proteins are only permitted to work in chloroplasts and mitochondria, not in the cytosol where they could cause fatal miscorrections.
Researchers have discovered the first known nitrogen-fixing organelle within a eukaryotic cell, which challenges current understanding of biological nitrogen fixation. The discovery provides insight into ocean ecosystems and has potential implications for agriculture.
Researchers studied Prorocentrum cordatum to understand its molecular processes, revealing a unique photosynthetic machinery that may help it adapt to changing light conditions. The findings could lead to improved understanding of harmful algal blooms and their role in climate change.
Researchers at John Innes Centre used cryo-EM to visualize the structural architecture of chloroplast RNA polymerase and build a detailed atomic model. The study reveals new insights into transcription, a fundamental step in making photosynthetic proteins, and how these proteins interact with DNA and mRNA.
A recent study published in Plant Physiology reveals the inner workings of photosynthesis and plant productivity by investigating the interaction between RBL10 and ACP4 proteins. The researchers identified that these proteins act independently in parallel ways to affect lipid biosynthesis, paving the way for engineering crop plants wit...
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 discovered plants spread out inherited mutations through random differences between offspring, aiding in crop yield and disease resistance. This process, known as segregation, relies on the plant's ability to generate randomness.
A new study reveals that chloroplasts are essential for plant immunity, with stromules forming around the nucleus to transport pro-defense signals. Researchers have identified a key protein involved in stromule biogenesis during immunity, opening up new avenues for understanding and engineering resistance to pathogens.
X- and y-type thioredoxins play a crucial role in maintaining the redox balance of photosynthesis during fluctuating light conditions. The study found that these proteins facilitate electron transport through the electron transport chain, preventing photoinhibition and promoting plant growth.
The study reveals that magnesium transport proteins are essential for plant metabolism and chloroplast functioning, impacting growth and yield. The analysis of three newly identified magnesium release and transporter proteins shows their importance in photosynthesis.
A study by Eötvös Loránd University researchers reveals that the iron uptake mechanism by plastids in the absence of light is similar to photosynthesis. This discovery has significant implications for our understanding of plant-based foods as a source of essential iron for humans.
A joint research team from City University of Hong Kong and collaborators developed a stable artificial photocatalytic system that mimics natural chloroplasts to convert carbon dioxide into methane, a valuable fuel, very efficiently using light. The new system achieved a highly efficient solar-to-fuel efficiency rate of 15%, surpassing...
Researchers at the Carl R. Woese Institute for Genomic Biology found that manipulating chloroplast size is unlikely to improve photosynthetic efficiency in crops. They created tobacco lines with enlarged and reduced chloroplasts, but field tests showed minimal effects on productivity.
A team from the University of Illinois has created 3D reconstructions of C4 plant cell structures, revealing new information on chloroplast size and plasmodesmata distribution. This work aims to improve modeling and production of biodiesel and biojet fuel.
Researchers found that TaMADS29 interacts with TaNF-YB1 to regulate early grain development in bread wheat. The complex helps prevent excessive ROS accumulation, promotes nutrient transport into the endosperm, and allows normal grain filling.
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 at Sogang University and Harbin Institute of Technology developed artificial mitochondria and chloroplasts to create sustainable cells. These organelles can produce energy through sunlight or glucose breakdown.
A team from Australian National University has modified the protein folding properties of bacteria by adding multiple components from plant chloroplasts. This enables them to study and speed up plant Rubisco, a slow protein that requires 'chaperones' for operation.
Scientists at Max Planck Institute discovered that paternal chloroplasts can be transmitted to offspring under cold conditions, allowing for selective breeding of traits from genetic material. This finding may enable plant breeders to use chloroplast genes in new ways.
Researchers at the University of Amsterdam found that chloroplasts in plant cells exhibit glassy behavior under low-light conditions, allowing them to quickly move and optimize photosynthesis. In bright light, these 'glassy' states transition into fluid-like phases for efficient movement and light-avoidance.
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 demonstrate that protein CGL160 recruits ATP synthases to assemble efficient photosynthetic machinery. This discovery sheds light on chloroplast development and adaptation to varying light conditions.
An international team of researchers has used data science to reveal the universal rules shaping cells' power stations. The study found that genes encoding subunits of larger cellular machines are most likely to be retained in organelle DNA.
Researchers at CSU found that a gene called MSH1 helps keep plant mitochondrial genomes mutation-free, allowing for quick sorting of normal and diseased DNA. This process is more efficient in plants than in humans, where mutations are passed down through generations.
Researchers from Osaka University discovered a new type of protein in red algae Cyanidioschyzon merolae associated with chloroplast protein import and targeting mechanism. The study found that red algae use distinct mechanisms involving GTP-binding proteins to transport proteins across the inner membrane of chloroplasts.
A group of researchers discovered a new species of green algae, Gormaniella terricola, in Central New York State. The alga's unique chloroplast genome was found to contain DNA from fungi and bacteria, highlighting the importance of horizontal transfer.
Researchers have found that altering carotenoid metabolism in tomato plants increases fruit yield by up to 77% and enhances nutritional content. The modified plants also show improved tolerance to abiotic stresses like drought and salinity.
A team of researchers at the University of Copenhagen has identified a group of proteins, called CURT1, that control the development of green leaves in plants. This discovery sheds new light on photosynthesis, which is essential for life on Earth and could lead to more efficient CO2 absorption.
Researchers aim to produce enough mRNA vaccines from spinach and lettuce to rival traditional shots. They're exploring chloroplasts as a key to making plant-based mRNA vaccines that can be stored at room temperature.
A study compared four common DNA extraction methods and found that each method produced slightly different results due to varying 'how' factors. Researchers can now make informed decisions about their methods to optimize results.
Scientists have produced a detailed structure of the central complex of photosynthesis in the model plant Arabidopsis, revealing information about chlorophyll and lipid molecules. The high-resolution image was obtained using cryogenic electron microscopy, enabling a comparison of plants' photosystem II complexes with unprecedented detail.
Researchers analyze Plakobranchus ocellatus type black sea slug genome, finding chloroplasts retain photosynthetic capability for months. The study reveals no evidence of algal genes encoded on the sea slug genome, suggesting alternative mechanisms behind kleptoplasty.
A new genetic technique edits every chloroplast in a plant without changing its nuclear DNA. Researchers achieved this by modifying chloroplast genes specifically and removing the DNA editing tool, which cannot be inherited by future seeds. This approach could potentially solve both technical challenges and controversies surrounding GMOs.
A German-Japanese research team has deciphered the 3D structure of a metalloprotein that catalyzes RNA editing in all plant cells. The DYW domain's activation is triggered by a zinc atom and a gating domain, providing a sophisticated regulation mechanism for chloroplasts and mitochondria.
Research finds that small chloroplasts in plant epidermal cells play a crucial role in controlling the entry of fungal pathogens. The study reveals that these chloroplasts migrate to the surface layer in response to fungal attacks, blocking their invasion into plant cells.
Researchers have identified a genetic mechanism called CHLORAD that plays a crucial role in the tomato ripening process. Activated CHLORAD systems produce more lycopene, a health-promoting compound, resulting in faster red coloration and higher nutritional value.
A research group has identified a genetic mechanism called CHLORAD that regulates tomato ripening by promoting carotenoid production and altering chloroplast transformation. Activated CHLORAD systems produce tomatoes with more lycopene, leading to higher nutritional quality and attractive color.
Ion transporters in chloroplasts play a crucial role in regulating gene expression, influencing the efficiency of photosynthesis. This discovery has significant implications for enhancing photosynthetic efficiency under unfavorable environmental conditions.
A team of engineers has created a new material by infusing 3D printer ink with chloroplasts from spinach. This living material can be strengthened up to six times its original strength through photosynthesis and exhibits self-repairing properties.
Researchers find that nuclei, chloroplasts, and pyrenoids can persist for weeks and months after cell death in eukaryotic cells, challenging previous assumptions about their decay rate. This discovery helps to narrow the age range of complex life on Earth, suggesting its emergence around 1,700 million years ago.
Researchers have discovered how sea slugs protect chloroplasts from damage caused by light, allowing them to continue photosynthesis. The findings provide insight into this unique animal-chloroplast relationship and its potential implications for longevity.
A team of researchers at CSIC and CRAG has discovered a new method to transform chloroplasts in leaves into chromoplasts, which produce high levels of carotenoids. This process can increase the nutritional value of crops and provide a sustainable source for the food and cosmetic industries.
Researchers find that manipulating magnesium intake can improve photosynthetic efficiency and growth in rice plants. By understanding the daily pattern of magnesium uptake, scientists may be able to develop new strategies for improving crop yields and addressing global food shortages.
Researchers introduce fluorescence protein sensors into live plants to visualize dynamic changes in NADPH level and NADH/NAD+ ratio in different cell types. This allows for the study of photosynthesis and photorespiration, revealing the close connection between subcellular compartments for efficient metabolism.
A Max Planck research team led by Tobias Erb developed an artificial chloroplast platform capable of capturing and converting greenhouse gas carbon dioxide with light. The system, created using synthetic biology and microfluidics, outperforms previous synthetic-biological approaches in binding rates for carbon dioxide.