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Tag: "nutrient" at biology news

The evolution of food plants: Genetic control of grass flower architecture

...rent genes control the architecture as well as the nutrient content in cereal grasses. The ramosa2 (ra2) mutant of maize has increased branching of inflorescences relative to wild type plants, with short branches replaced by long, indeterminate ones, suggesting that the ra2 gene plays an important role in co...

Study: Competition for sex is a 'jungle out there'

...tance of biodiversity hotspots for medicine, food, nutrient cycling, and alternative resources for pollinators of domesticated crops world wide," said collaborator Tia-Lynn Ashman, Ph.D., of the University of Pittsburgh. "The concern is that we are losing habitat really rapidly globally, especially in tropic...

Study by Einstein researchers could lead to a novel strategy for treating obesity

...nted to know whether sustained suppression of this nutrient within the hypothalamus could result in obesity. To find out, they piggybacked an enzyme known to degrade malonyl CoA onto an adeno-associated virus and injected the virus into the hypothalamus of rats. The injections caused a chronic decrease in ma...

Basic research leads to a novel cancer therapy

...ich discovered that by interrupting the oxygen and nutrient supply to tumour cells, it is possible to inhibit cancer development. The Max Planck scientists showed that tumour tissue just a few cubic millimetres in size can create vascular endothelial growth factor (VEGF), which triggers blood vessel developme...

AIDS drug from sunflowers

...ultivate sunflower cells or other plant cells in a nutrient solution together with the mould sclerotinia sclerotiorum and then obtain the enzyme from the liquid,' CEMBIO researcher Ralf Theisen says. 'If things go according to plan, we could produce DCQA at a substantially reduced cost.' From the ceiling of ...

Not just the birds

...ers Aleutian island plant communities by thwarting nutrient subsidies," is published in the February issue of ...ve been observed in regard to an island's size and nutrient deposition. In many cases, a small island with a large perimeter touching the sea receives more nutr...

'Dead zone' summer killed billions of ocean state mussels

... warm temperatures and a lack of circulation, this nutrient rush can cause algae blooms. When the algae dies, ...ummer of 2003. Mussels, however, can help control nutrient overload and hypoxia by consuming phytoplankton, which reduces bottom-dwelling bacteria. "When we lo...

New Research Shows Artificial Light at Night Stimulates Breast Cancer Growth in Laboratory Mice

...e know that many tumors are largely dependent on a nutrient called linoleic acid, an essential fatty acid, in order to grow,?said David Blask, M.D., Ph.D., a neuroendocrinologist with the Bassett Research Institute and lead author on the study. “Melatonin interferes with the tumor’s ability to use linoleic ac...

Gene thwarts some pathogens, gives access to others, could save crops

... root hair. This may have implications in terms of nutrient absorption or total plant biomass." The answers eventually could lead to increased crop yield and decreased produce loss due to Botrytis and other similar pathogens, he said. Currently, the gray mold disease caused by Botrytis destroys about 10 per...

Alaska seal pup diet may hold key to decline of population

....) Except for the fat content of the herring, the nutrient content was the same for both groups, Polasek explained. The researchers monitored the animals in the low fat group to ensure fat intake was not falling below minimal levels, she said. "We don't want to put them in nutritionally stressed situation th...

New tool tracks brain development in babies

...e of brain injury caused by a period of oxygen and nutrient deficiency, usually as a result of complications during delivery. Hypoxic ischemic injury can result in severe motor problems. "The pattern and extent of the brain injury largely determine the neurological and developmental consequences for the newb...

Purdue creates new low-cost system to detect bacteria

...ri dish containing bacterial colonies growing in a nutrient medium. "Unlike conventional methods, we don't have to do any biochemical staining, DNA analysis or other types of manipulation," said Bartek Rajwa, a staff scientist at the Bindley Bioscience Center in Purdue's Discovery Park, the university's hub...

DNA: Bacteria's survival ration

...ors reported, "suggesting that the use of DNA as a nutrient may be a widespread phenomenon." The concept of n.... Nevertheless, Finkel said, DNA remains a backup nutrient for bacteria, being harder to digest than glucose and other simpler food sources. ...

First 'encyclopedia' of nuclear receptors reveals organisms' focus on sex, food

...and physiology in two main areas, reproduction and nutrient metabolism. Receptor networks also have key roles...nto two main clusters to regulate reproduction and nutrient metabolism. Dr. Mangelsdorf said groups of receptors likely interact to control many processes, such...

DOE JGI finishes 100th microbial genome

... Massachusetts. Important player in the carbon and nutrient cycles of aquatic sediments and in the bioremediation of organic and metal contaminants in groundwater. Rhodobacter sphaeroides. Samuel Kaplan, University of Texas Health Sciences Center at Houston. Metabolically diverse, grows in wide variety of ...

Corn waste potentially more than ethanol

...lls were inoculated with domestic wastewater and a nutrient medium containing glucose, the researchers report in the journal Energy and Fuels. Once established, the bacteria colonies were fed the sugary organic liquid obtained from steam exploding of corn stover. The researchers, who include Logan, Yi Zuo, P...

Bacteria can help predict ocean change

...nthly measurements of water temperature, salinity, nutrient content, plant matter and other variables. The researchers found they could predict the makeup of the bacterial population by the conditions in the water more than four times in five. A majority of bacterial species came and went predictably, Fuh...

Invasive species alter habitat to their benefit

...es, and changes occur in natural processes such as nutrient cycling, wildfire frequency and the movement of wa...each marsh with lots of hybrid cattails had higher nutrient levels and heavier mats of dead cattail stems than areas with only native wetland plants. The plants...

Gene therapy injected into the brains' of mice with Huntington's disease

...uld normally die in this disease. The other neural nutrient is called neurturin (NTN). GDNF and NTN also incr...been engineered to transfer the gene for the brain nutrient selectively to the area of the brain where it is needed to protect the degenerating cells. Three gr...

Gut microbes' partnership helps body extract energy from food, store it as fat

...ays the results emphasize the need to consider the nutrient value of the foods we consume in the context of the digestive capacity of our individual gut microbial communities. To help address such questions, Gordon and his colleagues are completing the sequence of the M. smithii genome and sequencing the geno...

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