Health of coral reefs detected from orbit
... twice-weekly basis. Coral bleaching happens when symbiotic algae living in symbiosis with living coral polyps (and providing them their distinctive colours) are expelled. The whitening coral may die with subsequent impacts on the reef ecosystem, and thus fisheries, regional tourism and coastal protection. Co...Understanding the oceans microbes is key to the Earth's future
...he biogeography of these organisms, their roles in symbiotic relationships and pathogenesis, their metabolic capabilities, their impacts on humans, and goals for research, training, and education in marine microbiology. The report outlines a number of recommendations for future research in marine microbiolog...Plants, too, have ways to manage freeloaders
... that are not. The finding illustrates the complex symbiotic relationships that have evolved between organisms, ranging from one-sided parasitism to mutualism, a situation in which both parties benefit. It also suggests that agricultural practices, including heavy use of nitrogen fertilizer, could disrupt thes...Genetic clues to Sodalis deepens knowledge of bacterial diseases
By sequencing the genome of the symbiotic bacterium Sodalis, which lives off the major disea...eukaryotes (animals) that live in association with symbiotic microbes or bacteria. These animals depend on the microbes for vital nutrients they can't otherwise ...Hot-spring bacteria flip a metabolic switch
...tions to this dilemma. For example, plants rely on symbiotic N2-fixing bacteria that live in their roots, far away from the photosynthetic leaves. A different type of cyanobacteria grows in multicellular strands and makes specialized N2-fixing cells called heterocysts that are walled off from the photosyntheti...Scientists seek to unwrap the sweet mystery of the sugar coat on bacteria
...hat surface sugars play in bacterial infection and symbiotic relationships....Science class experiment reveals vitamin B12 secret
...hen he added a laundry whitener to a lab dish, the symbiotic bacteria he studied glowed in ultraviolet light, j... B12. There, researchers have been focusing on how symbiotic bacteria form and invade the nodules in alfalfa roots that provide the plant with nitrogen and the b...Mutation in a single gene switches a fungus-grass symbiosis from mutualistic to antagonistic
A symbiotic relationship is one in which two organisms of diff...rvae then feed on. Plants participate in numerous symbiotic associations. Examples include the nitrogen-fixing bacteria that live in plant roots, the fungus-al...Minimal genome should be twice the size, study shows
...chnera and Wigglesworthia live inside insects in a symbiotic relationship where they provide essential molecules for their hosts in return for essential basic foods. Since evolving from E.coli, the Buchnera and Wigglesworthia genomes have lost some of the genes that they would otherwise need for survival. Usin...Legume compounds may help cancer treatment
...molecules are produced by legumes during the early symbiotic relationship with soil bacteria known as rhizobia. Rhizobia induce legumes to form tiny new root organs called "root nodules." The bacteria live in the nodules and provide the plant with useable nitrogen it can convert into proteins. CILR Chief Inve...Invasive species harms native hardwoods by killing soil fungus
...uspected that the invasive plant might thwart this symbiotic relationship. To test this possibility, they collected soil from five forests in Ontario dominated by four species of native hardwoods. First, the researchers tested seedlings' ability to form mycorrhizal relationships in soil with a history of garl...From climate dynamics to educational research...
... that may be activated or reprogrammed by means of symbiotic interaction at the molecular level. This interaction may occur with fungi, which release phosphates, bacteria, which release nitric oxide, or by plant diseases. This research is of particular importance in agriculture, for example in the search for w...Tiny polyps gorge themselves to survive coral bleaching
...triggers a bleaching event. Once that happens, the symbiotic algae and the brown or green photosynthetic pigments inside are lost. The result is a "bleached" white coral. "In most cases, corals get 100 percent of their daily metabolic energy needs from the algae. Once they are gone, the coral polyp is left wi...New method confirms importance of fungi in Arctic nitrogen cycle
...be attributed mainly to the presence or absence of symbiotic mycorrhizal fungi." The researcher's new technique is shedding light not only on the nitrogen cycle in arctic tundra ecosystems, but can be applied to other nitrogen-poor ecosystems. "In the future, studies of plant nitrogen supply in all nitrogen-po...Viral hitchhiker inhibits Wolbachia bacteria's ability to proliferate
...WOODS HOLE, MA--Scientists studying the widespread symbiotic bacteria Wolbachia have long been interested in its ability to proliferate. One way it does this is by hijacking sperm of its insect hosts and genetically tricking them to bear more infected females, the only sex that transmits the bacteria. Now, a...Giant deep-sea tubeworm's meal ticket comes in as a skin infection
...isher says, "that understandingthe early stages of symbiotic interactionswill help us to understand the early stagesof host-pathogen interactions, andvice-versa."...Surprising symbiosis: Glassy-winged sharpshooter eats with friends
...eads that matched neither the insect nor its known symbiotic B. cicadellinicola bacteria. A large amount of the leftover DNA mapped to another bacterium, S. muelleri. Sure enough, when they pooled the bits of sample DNA that came from S. muelleri, the team found all the essential amino acid synthesis pathways....New research may reduce global need for nitrogen fertilizers
...e the ability to fix nitrogen which they owe to a symbiotic relationship with nitrogen-fixing bacteria in root nodules. Legumes are often used as a rotation crop to naturally enhance the nitrogen content of soils. Scientists have been working for a number of years to understand the symbiosis between legumes a...Corals switch skeleton material as seawater changes
... is also causing the corals to bleach (lose their symbiotic algae) and die, ultimately leading to the destruction of the coral reefs, which protect the coasts from these storms," Ries said. "All that being said, it is also important to note that the magnesium-calcium ratio of seawater changes only over millio......ization of the interactions between poplar and its symbiotic associate, Laccaria bicolor, allows us to explore the coordinated response to environmental stressors, such as drought and extreme temperature, and other biological factors, providing a new dimension to climate change research and a step further towa...