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Symbiosis in Biological News

Coral's addiction to 'junk food'

... facing grave threats from climate change. The symbiosis between coral a primitive animal and ... of knowledge about the metabolism of the coral symbiosis in the journal Plant Cell and Environment. Coral symbiosis takes place mainly in clear, clean nutrient-poor ...

A common genetic mechanism discovered in nitrogen-fixing plants

... and agronomic role. Arbuscular mycorrhizal symbiosis (which links a plant to a fungus) thus gives ... recent era, about 60 million years B. P., the symbiosis which became established between soil bacteria, ... genetic signalling mechanisms operating in the symbiosis between leguminous plants and Rhizobium type ...

Evolution of root nodule symbiosis with nitrogen-fixing bacteria

... and other nutrients from the soil. This kind of symbiosis is called an arbuscular mycorrhiza, and evolved ... bacteria. In this so-called root nodule symbiosis bacteria live in the root cells of the host ... that genes involved in the arbuscular mycorrhiza symbiosis might have been recruited for nodulation, as ...

Stanford scientists find heat-tolerant coral reefs that may resist climate change

... things about the cellular and genetic mechanisms that allow this symbiosis to function, and about the mechanisms that come into play when the symbiosis is breaking down under stress," Pringle said. "The longer-range hope is ...

American Society for Microbiology honors Jo Handelsman

... Teaching (WPST) to enhance undergraduate biology education by training a new generation of scientific teachers. She also created the "Summer symbiosis Program," a ten-week research experience for undergraduates who are paired with WPST Mentoring Program graduate and postdoctoral students. Under ...

Studies shed light on collapse of coral reefs

... by 50 percent and promote the dissolving of coral skeletons, the researchers noted in their report. "With some of the new findings about coral symbiosis and calcification, and how it works, coral biologists are now starting to think more outside the box," Weis said. "Maybe there's something we could ...

Food security: It starts with seed

... of research in his lab include the genetic modification of soybean seed composition and improvement of biological nitrogen fixation in the model symbiosis between soybean and Sinorhizobium fredii USDA257. The publishing of Modification of Seed Composition to Promote Health and Nutrition coincides ...

Mites on hissing coackroach may benefit humans with allergies

... the molds, the mites have a role in reducing allergic reactions to cockroaches." The research is published in the current issue of the journal symbiosis . he Madagascar hissing cockroach, or Gromphadorhina portentosa, grows to between 2 and 3 inches long and 1 inch wide, and makes its ...

An underwater drugstore?

... an arsenal of compounds that could work to fight infections. We're now culturing huge amounts of microorganisms, such as actinobacteria, that live in symbiosis with marine sponges." Marine sponges were recently made famous by the popular Nickelodeon TV cartoon SpongeBob SquarePants, which features a sea ...

Wielding microbe against microbe, beetle defends its food source

... could follow. "There are perhaps 10 million species of insects on the planet," says University of Wisconsin-Madison evolutionary biologist and symbiosis expert, Cameron Currie, who led the study with Harvard University chemist Jon Clardy. "So, if insects associate with actinomycetes like this more ...

New indicator uncovered that can predict coral health

... and shelter. Over the last 20 years it has been made clear that there are many different types of dinoflagellates in corals and that the unions or symbiosis between a given coral and their dinoflagellates can be very specific." It had previously been considered that all dinoflagellates found in coral ...

Can you rescue a rainforest? The answer may be yes

... so long removed from a fertile rainforest support that much growth? Leopold says that may be because of mycorrhizae, microscopic fungi that form a symbiosis with tree roots. Research at Cornell and BTI shows that without them, many plants can't grow as well. After 50 years, the fungi seem to still be ...

Surprising symbiosis: Glassy-winged sharpshooter eats with friends

... inside its cells. Although insect-bacteria symbiosis is common, this is the first genomic analysis of ... project. "My initial interest in sharpshooter symbiosis was in the hope that we could find out exactly ... of how it works." "This is why this sharpshooter symbiosis is so important ?it has given us a good model ...

Giant deep-sea tubeworm's meal ticket comes in as a skin infection

... it collects. "It is anabsolutely obligate symbiosis for the worm,"Fisher explains. "If the larvae do ... remain. "Biologists are realizing that symbiosis isnot an oddity in nature, but rather thenorm," ... "Most -- if not all --animals and plants exist in symbiosis withsome forms of microbes. We ...

Evidence of 600-million-year old fungi-algae symbiosis discovered in marine fossils

... United States have found evidence of lichen-like symbiosis in 600-million-year-old fossils from South China. ... in the May 13 issue of Science ("Lichen-Like symbiosis 600 Million Years Ago"). Yuan, Xiao, and their ... of modern lichens demonstrate that the lichen symbiosis evolved many times," Taylor said. "The ability ...

A new plant-bacterial symbiotic mechanism promising for crop applications

... Tropicales et Méditerranéennes’ and its partners (1), taking as model a symbiosis between a tropical aquatic legume, Aeschynomene, and Bradyrhizobium, ... a glimpse of future agricultural applications. Many plants live in symbiosis with bacteria, but the mechanisms are known for only a small number of ...

Ocean sampling yields environmental sources of coral symbionts

... of the symbiotic organisms that reef corals need for survival. The symbiosis between special algal species and reef corals is the foundation of a ... and biologically complex ecosystem, but our understanding of how this symbiosis is established by new corals has been limited by the fact that the ...

Life in the extreme

... from Université Pierre et Marie Curie in France has found unique bacterial symbiosis with mussels. Symbiotic associations between bivalves (mussels) and ... from chemical compounds instead of light) and also some chemoautotrophic symbiosis (using a symbiont to derive energy from chemical compounds). However some ...

DOE JGI sequences, releases genome of symbiotic tree fungus

... The DNA sequence of Laccaria bicolor, a fungus that forms a beneficial symbiosis with trees and inhabits one of the most ecologically and commercially ... enables us to advance the understanding of how functional genomics of this symbiosis enhances biomass production and carbon management, particularly through ...

Pesticides choke pathway for nature to produce nitrogen for crops

... are cutting the lines of communication between the host plant and symbiotic bacteria. This is the mechanism by which these chemicals reduce symbiosis and nitrogen fixation." Fox began the project as a doctoral student with John A. McLachlan, director of the Center for Bioenvironmental Research ...

Corals that can fight global warming may one day help fragile reefs

... "Although corals are near the base of the evolutionary tree, they are complicated animals." The complexities arise from different levels of symbiosis within a coral, both with bacteria on the surface and algae in the interior. Moreover, the warmer waters cause increased virulence of some pathogens ...

Extraordinary life found around deep-sea gas seeps

... gas or hydrogen sulphide escapes from large stores deep below. Like hydrothermal vents, cold seeps support unique communities of animals living in symbiosis with microbes that can convert these energy-rich chemicals to living matter (a form of 'chemosynthesis') in the absence of sunlight. New Zealand ...

Health of coral reefs detected from orbit

... Envisat could potentially monitor impacted coral reefs worldwide on a 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 ...

Digging in the dirt for life's biochemical foundations

... controlled laboratory environment, so "the big challenge now will be to see whether the same mechanism is important for entire plants growing in symbiosis [partnership] with the fungi in soil, where other nitrogen sources may be more easily available," Fitter says. "Moving to the field is always ...

Ants win a waxy race

... do not use claws, but without adhesive pads, they have no grip and fall off the surface. A second specialist ant (Camponotus schmitzi) lives in symbiosis with a pitcher plant which forms a slippery home coming when it rains. The plant used its slippery charateristic to catch insects, which slip and ...

Fungus-farming termites descend from an African rain forest Eve

... in their nests, termites have been able to export this rain forest process into the savannas. The marrying of termites and fungi in a mutualistic symbiosis has thus allowed both partners to conquer the savannah: agricultural termites and their mutualistic fungi are both more successful in this habitat ...

Stealth Worms May Improve Insect Pest Control

... in matching nematodes to pests, Stock says. "Yet these nematodes are so powerful and pathogenic not in and of themselves, but because they live in symbiosis with bacteria," Stock concludes. "Both the bacteria and the nematode need each other to survive, making them not only good as biological agents, but ...

Symbiotic bacteria protect hunting wasps from fungal infestation

... and his colleagues at the Biocenter of the University of Würzburg show that the European beewolf Philanthus triangulum has evolved a defensive symbiosis with a new species of bacteria of the genus Streptomyces. Interestingly, this genus comprises the most important group of bacteria for the production ...
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