Articles tagged with Symbiosis
Researchers discovered nitrate reductase plays a crucial role in regulating nitrogen-responsive nodulation, balancing costs and benefits of symbiosis according to nitrogen availability. The enzyme maintains internal nitrate levels, preventing excessive nitrate accumulation and suppressing root nodule formation.
Researchers at Penn State will use the funding to develop new tools for investigating the genetics underpinning relationships between mosquitoes and various microbes. The projects aim to improve scientific understanding of mosquito-borne pathogens and eventually enable new discoveries that could help inhibit disease spread.
A new study reveals that brief warm temperatures disrupt the internal bacterial ecosystem of dwarf spiders, leading to a sudden comeback of male offspring. The research found that thermal stress triggers a transgenerational shift in microbial dynamics, with a rival bacterium blocking the feminizing bacteria and allowing males to thrive.
Researchers have identified a pathogenic microorganism that invades the gut of stink bugs by masquerading as a symbiotic microorganism, leading to nearly 100% mortality. This discovery could lead to the development of new biological pesticides with high species-specificity and lower environmental impact.
Researchers at UC Berkeley have found that algae parasitized coral, exploiting a cellular organelle to obtain nutrients. This symbiotic relationship could hold the key to understanding why reefs are dying due to warming oceans.
Researchers found that acid-modified and alkaline biochars helped reduce stress from saline-alkali soil, improving soil conditions and supporting alfalfa performance. Alkaline biochar promoted biomass growth, while acid-modified biochar improved soil chemistry and root defense in highly alkaline soils.
Leaffooted bug nymphs must play a 'game of roulette' to acquire bacterial symbionts needed for survival and growth within a limited time frame. The study found that delayed symbiont acquisition leads to reduced survivorship, adult weight, and increased development time.
Dr. Natalie Hoffmann receives the inaugural Jane Silverthorne Postdoctoral Fellowship to investigate plant cell wall plasticity during arbuscular mycorrhizal symbioses. She aims to understand how plants remodel their cell walls to allow beneficial fungi to grow through them.
Researchers found that soil fungi are essential for native forest re-growth and ecosystem health on Palmyra Atoll. The symbiotic relationship between Pisonia trees and fungal partners is critical for the atoll's unique ecosystem.
Researchers discovered that sea urchin eggs can integrate chromoplast-derived carotenoid crystals, which enhance larval development and increase their survival rate by 50%. This integration enables the larvae to adapt to different environments.
Researchers found that gut microbial communities in estuarine fish are driven by functional traits rather than evolutionary history. The study identified three distinct enterotypes associated with dietary habits and migratory behaviors, revealing specific metabolic adaptations tailored to each host's lifestyle.
A new study reveals that carefully designed biochar amendments can improve plant growth and soil health in saline-alkali soils by reshaping plant metabolism and microbial communities. Alkaline biochar was found to stimulate key metabolic pathways, while acid-modified biochar enhanced root development and activated plant defense systems.
Researchers found that combining biochar with beneficial bacteria significantly improves phosphorus availability, reshaping plant development and increasing crop yields in greenhouse-grown cherry tomatoes. The study also showed that this approach can enhance soil fertility and crop productivity without increasing fertilizer inputs.
A recent study found that Vibrio fischeri bacteria are essential for the healthy development of Hawaiian bobtail squid. The bacteria produce a protein called SypC, which prompts the development of the squid's light-organ. Without SypC, developmental disruptions occur, highlighting the crucial communication between bacteria and host.
Researchers developed a system combining biochar with arbuscular mycorrhizal fungi to target specific pollutants in red mud. The results showed that each fungal species played a distinct role in detoxifying arsenic and lead, as well as improving soil health.
Researchers at Texas A&M University and DEVCOM Army Research Laboratory developed a hybrid foam with a 3D-printed plastic skeleton, offering tunable, lightweight and ultra-durable properties. The composite combines ordinary foam with plastic struts, allowing it to absorb more energy and withstand greater forces.
Researchers discovered a short amino acid motif in NIN that confers broader DNA binding specificity, essential for rhizobial infection and nitrogen fixation. This finding suggests NIN evolved by co-opting preexisting molecular features of ancestral NLP transcription factors.
Climate change alters high-elevation meadows, causing plant communities to shift towards shrub-dominated landscapes. The changes also affect the soil ecosystem, with declines in mycorrhizal fungi and increases in decomposers.
Researchers at the Boyce Thompson Institute have developed new tools to study the molecular level of plant-fungus partnerships. By identifying key proteins involved in nutrient exchange, they aim to develop crop varieties that form more effective symbioses, reducing fertilizer costs and improving crop resilience.
Researchers discovered that beneficial fungi enhance plant resistance to disease by remodelling the plant cell membrane at pathogen infection sites. This transformation coincides with a significant reduction in pathogen colonisation and offers critical new insights into how plants coordinate defences in complex natural environments.
Researchers have identified a new species of ancient symbiotic fungus preserved within a 407-million-year-old plant fossil from Scotland. The discovery provides unprecedented three-dimensional insight into one of the earliest known plant–fungus partnerships, known as mycorrhiza.
A breakthrough study from Aarhus University identified two amino acid changes that allow plants to switch off their immune system and form symbiosis with nitrogen-fixing bacteria. This discovery could lead to breeding crops like wheat, barley, and maize that can fix nitrogen themselves, reducing the need for artificial fertilizer.
A new species of sea anemone has been discovered building shell-like homes for hermit crabs. The anemone secretes a carcinoecium that expands and reinforces the crab's shell, forming a mutualistic relationship between the two species.
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 found that bean plants and other species evolved a predisposition for the symbiosis at least three times, supporting a long-standing theory. This biological trick allows plants to access atmospheric nitrogen, boosting crop yields.
Researchers studied a microscopic alliance between algae and cyanobacteria to understand how bacteria lose genes and adapt to increasing host dependence. The study found that the level of integration between the symbionts affects genome size, gene content, and metabolic pathways.
Researchers from Kyoto University discovered a new shrimp roommate, Betaeus levifrons, living in Japanese mud shrimp (Upogebia major) burrows on the Pacific coast of Hokkaido. This symbiotic relationship highlights the unique ecological and evolutionary processes underlying these interactions.
Researchers at OIST found that only cyanobacteria Trichormus azollae are true symbionts of Azolla ferns, with their genomes showing extreme decay and loss of genes. The study sheds light on the genomic impacts of symbiosis and its potential applications in food security.
Anemonefish evolved into diverse species due to distinct ecological lifestyles, including swimming efficiency, muscle architecture, and behavior. The study challenges long-held ideas about host specialization, positioning anemonefish as a new model system for studying ecological and evolutionary forces.
Research shows how tropical plants like Squamellaria manage rival ant colonies by physically separating them within the plant's domatia. The compartments act as individual flats, preventing physical contact and allowing multiple ant species to coexist peacefully.
Researchers at Nara Institute of Science and Technology have found beneficial microbes in rice roots that can support plant growth and reduce the need for synthetic fertilizers. The study reveals an increase in microbial diversity as plants mature, with nitrogen-fixing bacteria enriching the soil.
Researchers found that dual symbioses between trees and mycorrhizal fungi enhance tree fitness, making them less sensitive to drought and nutrient scarcity. This cooperation enables trees to colonize a larger territory and adapt to harsher climates, particularly in dry areas.
Researchers identify CLE16 peptide as key molecule promoting symbiotic relationship between plants and beneficial soil fungi. Supplementing with this peptide or its fungal equivalent can enhance nutrient exchange and strengthen these traits in crops.
Researchers at Kobe University discovered that gut microbes convert glucose into short-chain fatty acids when fed sugar, highlighting a new symbiotic relationship. This finding could lead to the development of novel therapeutics for regulating gut microbiota and their metabolites.
Anemonefish provide food to bubble-tip anemones through active provisioning, which increases the host's growth rate. This symbiotic behavior is crucial for the anemonefish as it benefits them by making their hosts larger.
Coral larvae reduce metabolism and increase nitrogen uptake to resist bleaching in high temperatures. This adaptation allows the coral to conserve energy and resources, while also limiting algal overgrowth and maintaining symbiotic relationships.
A study on attine ants reveals that beneficial bacteria live on the surface of their exoskeletons, which nourish these bacteria. The researchers found that these bacteria, including Pseudonocardia, are thought to have initially been gut symbionts and became cuticular symbionts around 20 million years ago.
Researchers discovered a bacterial parasite that infects the nuclei of deep-sea mussels, reproducing to over 80,000 cells while keeping its host alive. The parasite produces proteins that suppress apoptosis, an 'arms race' with the host cell, and acquires nutrients from host components.
Researchers challenge single-origin theory of root nodule symbiosis, identifying multiple origins and ideal experimental systems to better understand symbiotic relationships. The findings suggest a lesser role for shared genetic machinery in genetically engineering crop plants to work with nitrogen-fixing bacteria.
Researchers discovered that the regeneration process of certain marine worms is controlled by a common transcription factor called runt, which also regulates the communication with the algae living inside them. This finding sheds light on the complex interactions between species in symbiotic relationships.
Researchers found a symbiotic relationship between cyanobacteria UCYN-A and marine algae, B. bigelowii, where UCYN-A fix nitrogen gas into ammonium without regulating dinitrogen use. This suggests they may be on the path to becoming organelle-like structures.
Researchers have identified two genetic factors, LSH1/LSH2, that promote the production of specialized root cells required for nitrogen-fixing bacteria to thrive in legumes. This discovery brings us closer to engineering non-legume crops to develop root nodule organs and reduce our reliance on industrial nitrogen fertilizers.
Groundbreaking research reveals key insights into plant-AM fungi interactions, including the roles of two proteins, CKL1 and CKL2, which control lipid flow essential for fungal survival. This symbiosis could lead to advances in agricultural sustainability and crop resilience.
A recent study at The Hebrew University of Jerusalem documented a groundbreaking observation of phoresy involving a myrmecophile pseudoscorpion on a myrmecophile scorpion. The study reveals the first recorded instance of this symbiotic relationship, where the pseudoscorpion attaches to the scorpion for dispersal into new environments.
Researchers found that the IAA-miR164a-NAC100L1 module induces callose deposition to mediate graft incompatible cucumber/pumpkin seedlings. The module regulates callose synthase activity and interacts with NAC100L1 to enhance symbiotic incompatibility.
Researchers found that specific algae from the genus Breviolum help Caribbean octocorals withstand heat waves and bleaching events. The study provides clues for the future of coral reefs and highlights the need for further research to better understand the ecosystem.
Researchers found a tradeoff between fast growth and heat tolerance in corals, with thermally sensitive algae dominating faster growth but only in cooler water. This study helps predict reef futures and inform conservation strategies, highlighting the complexity of coral growth on a reef.
New research reveals that adult coral can handle more heat and keep growing thanks to heat-evolved symbionts. The study found that these symbionts enhanced coral recovery from bleaching and improved heat tolerance without compromising growth.
Researchers at Kyoto University have found three new species of animals living together in harmony with worms in dead coral rocks. The discovery highlights the importance of community structure and biodiversity patterns in cryptofauna, suggesting that symbiotic relationships are omnipresent in the ocean.
A study by Hokkaido University researchers has discovered a wide diversity of symbiotic, photosynthetic microalgae associated with small, worm-like animals called acoels. Acoels form relationships with single-celled microalgae, storing them below their outer surface and creating energy using sunlight.
Researchers discovered a species of fungus that fosters a unique symbiotic relationship with oilseed rape plants, increasing flavonoid biosynthesis and enhancing plant defense against pests. This breakthrough offers promising potential for sustainable agriculture and minimizing ecological footprints.
Researchers have identified a new process by which sugar is released by symbiotic algae, showing the cell wall plays a crucial role in symbiosis and carbon circulation. The findings provide an important piece of the jigsaw puzzle for understanding carbon cycling in marine environments.
Researchers found that competition between beneficial bacterial strains degrades the service they provide to plants, resulting in smaller benefits. The study used native California plant and eight compatible nitrogen-fixing bacterial strains to directly measure their ability to infect plants and provide benefits.
Researchers at Penn State discovered that bioluminescent bacteria use a small RNA molecule called Qrr1 to coordinate their behavior and colonize the squid's light organ. This mechanism is likely widespread among bacteria, enabling them to exploit quorum sensing pathways.
A recent study has shown that the mutual symbiosis between bacteria and fungi can be fragile, as a specific protein maintains the balance. When this protein is absent, the bacteria are trapped within fungal hyphae and die.
Researchers have identified a phenomenon that could help coral reef managers plan and act for the future. Ocean processes during El Niño strengthened the North Equatorial Counter Current, driving cooler plankton-rich waters to Palmyra's coral reefs and enabling them to better manage heat stress.
Scientists discover that warmer temperatures cause sea sponges to lose essential microbes, leading to tissue poisoning and necrosis. This study highlights the impact of climate change on marine ecosystems and the potential loss of medicinal molecules.
Researchers found that plants allocate a significant amount of carbon to mycorrhizal fungi, equivalent to roughly one-third of carbon emitted yearly by fossil fuels. This discovery highlights the importance of understanding fungal networks in soil ecosystems and their role in mitigating climate change.
Researchers have discovered a common virus hidden within the genomes of coral symbionts, which can threaten the stability of the symbiotic partnership. Climate change and stress can trigger the release of this non-retroviral RNA virus, leading to disease in corals.
Researchers discovered fragments of RNA viruses embedded in coral partners' genomes, dating back 160 million years. The discovery provides insights into how corals fight off viral infections and may hold the key to understanding the ecological impact of viruses on reef health.