Tag: "seeds" at biology news
Researchers ID chlorophyll-regulating gene
...critical gene for plants that start their lives as seeds
buried in soil. They say the burial of seeds
was an adaptation that likely helped plants spread from humid, wet climates to drier, hostile enviro...
Green, leafy spinach may soon power cellphones and laptops
... water trapped within it, similar to the way plant seeds
hoard oils that maintain the seeds' integrity in dry conditions. BUILDING THE SANDWICH The bottom layer of the molecular electronic device is transparent glass coated with a conductive material. A thin layer of gold helps the chemical re...
Tobacco promising factory for biopharmaceuticals
...asy to alter genetically and produces thousands of seeds
and a great deal of biomass. As a non-food crop, genetically manipulated tobacco will not pose a safety threat to products consumed by humans. "Since tobacco is neither a food nor a feed-crop, transgenic tobacco will not enter our food chain," Zhang ...
Oldest evidence for processing of wild cereals: starch grains from barley, wheat, on grinding stone
...ut analysis of the numerous macroscopic remains of seeds
and fruits found there. When Piperno and Weiss me...ected as food and when did people begin to process seeds
and underground plant organs to turn them into more digestible and nutritious dietary elements"...
Forest managers can fight invasive species that come with roads
...ds using a variety of dispersal patterns. Usually, seeds
of invasive species are spread by animals or wind over short distances, but on rare occasions can also be spread over long distances by animals, wind or vehicles. When successful, these long-distance dispersal events allow invasive species to rapidly...
Duke study disputes idea that trees can 'relocate' quickly in response to climate change
...as the fact that when you start to look at how far seeds
disperse for modern trees and put that together with models of population spread, it's very difficult for a population of trees to move that fast." Instead of analyzing fossil data, Clark did population modeling in concert with McLachlan, a post-doct...
Ancient brewery discovered on mountaintop in Peru
...ery, researchers also found large deposits of used seeds
from the Peruvian pepper tree, Schinus molle. Chicha brewed with these pepper seeds
would have produced a spicy beer. "Today Peruvians make chicha primarily from corn, a tradition pas...
Healthy fats and oils essential to satisfy calorie-conscious consumers
...ing acceptance of GM seeds. "Genetically modified seeds
address the concerns pertaining to the amount of linolenic acids and free fatty acids in oils and offer many advantages such as high yield, better product shelf life, and a decreased usage of crop protection chemicals," explains Technical Insights Re...
'Weed from hell' found in Texas
...lons, the fruit or "apples" contain more than 100 seeds
and are readily eaten by cattle and wildlife, including deer, wild hogs, raccoons and birds. The seeds, which are not digested, may be quickly distributed over a wide area, Redmon said. The weed is native to Argentina and central Brazil. In the Uni...
New insight into cancer metastasis
...s to travel to distant organ sites, like dandelion seeds
scattered in the winds. "Twist is probably the first gene regulator that has been tied so definitively to human cancer metastasis," says Yang. Andrea Richardson, a pathologist at Brigham and Women's Hospital and coauthor o...
Parting genomes: UA biologists discover seeds of speciation
...rly stages of diverging into separate species. The seeds
of speciation are sown when distinct factions of a species cease reproducing with one another. When the two groups can no longer interbreed, or prefer not to, they stop exchanging genes and eventually go their own evolutionary ways, forming separate ...
Genetic barrier to self-pollination identified
...rediction was that the transgenic plants would set seeds
upon self-pollination (i.e., becoming self-compati...e genes controlling self-incompatibility, then all seeds
produced will be hybrids resulting from cross-pollination between two different lines. This would fa...
Domesticated tree crops may be the 'future of forestry'
...es with ideal growth characteristics, sowing their seeds
and planting out seedlings. However, ideal parents are no guarantee that the next generation of trees will exhibit the same traits. "The problem with conventional breeding is that you get a mix of the traits from the two parents, so for whatever qual...
Fat cells heal skull defects in mice, Stanford research shows
...t in determining cell fate. "The analogy is one of seeds
and soil," said Longaker. "The cells are the seeds, and the soil that enables them to form bone consists of the scaffolding and the signals of neighboring cells." Because more than 95 percent of the new bone growth was made up of implanted cells, res...
When plants need ants' help, bigger is better
Not surprisingly, tiny ants just can't tote seeds
as far as their bigger cousins. Because seeds
are more likely to survive and sprout if they're farther from the mother plant, it's best for plants...
Mexican farmers effectively cultivate phenotypic diversity in maize
...s are sown from one crop cycle to another with the seeds
of the ears from the previous harvest. However, fr... seeds. Each farmer thus judges the value of these seeds
according to their characteristics. Selection criteria are still a highly individual choice and depe...
Bye-bye Bio 101: Teach science the way you do science
...ors and other innovators have started planting the seeds
of change. The next step is to disseminate their ideas, products and practices, says Bruns. To help do that, HHMI is supporting a new peer-reviewed, web-based journal called Cell Biology Education: A Journal of Life Science Education. HHMI and the Na...
Tips from the Journals of the American Society for Microbiology
...ays and for 84 to 203 days after radish and carrot seeds
were planted. "It is remarkable that a one-time application of contaminated irrigation water or compost can result in pathogen contamination of radishes and carrots well beyond their growing cycle," say the researches. "Our resul...
Chestnut trees to spread across landscape again, says Purdue scientist
... 2006, we expect to have blight-resistant chestnut seeds
to release on a limited basis," Jacobs said. "In a...0 to 12 years, we'll see significant quantities of seeds
planted throughout the landscape." The breeding program involves many generations of crosses b...
Scientists develop new cloning technique that dramatically shortens the search for genes
...cess begins by randomly zapping thousands of plant seeds
with radiation, then growing the exposed seeds
in a lab. The goal is to raise a mutant plant with an obvious physical mutation, then search through...
1 2 3 4 5 6 7 8 9 10