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Seeds in Biological News

Caltech scientists control complex nucleation processes using DNA origami seeds

PASADENA, Calif.--The construction of complex man-made objects--a car, for example, or even a pizza--almost invariably entails what are known as "top-down" processes, in which the structure and order of the thing being built is imposed from the outside (say, by an automobile assembly line, or the ...

K-State researchers work with university in Ghana to create biofuels from native tree seeds

A short rainy season and desertification make growing food in northern Ghana difficult enough. It doesn't help that in this western African country there is little fuel available to power tractors for planting crops or to power grain milling. Researchers at Kansas State University think that th...

USGS science picks -- leads, feeds and story seeds

In this edition of Science Picks, discover details about the recent major earthquake in China, including expectations for aftershocks, and find out about a hypothetical earthquake scenario unveiled for Southern California and new publications on how to trek along the Hayward fault line. Learn abou...

Plant studies reveal how, where seeds store iron

Biologists have learned where and how some plant seeds store iron, a valuable discovery for scientists working to improve the iron content of plants. Their research helps address the worldwide problem of iron deficiency and malnutrition in humans. The team found that iron is stored in the develop...

Plant studies reveal how, where seeds store iron

Biologists have learned where and how some plant seeds store iron, a valuable discovery for scientists working to improve the iron content of plants. Their research helps address the worldwide problem of iron deficiency and malnutrition in humans. The team found that iron is stored in the develop...

GM crop that holds on to its seeds offers higher yields

Researchers have found a way of boosting the yield of a major crop by stopping its seedpods from bursting open. Indian mustard (Brassica juncea) is the most important oilseed crop in India after groundnut. It is grown largely to produce cooking oil from the seeds. However, because the seedpods op...

Smaller plants punch above their weight in the forest, say Queen's biologists

...eir canopies where smaller species thrive. Smaller plants are much more effective than large trees at utilizing available resources. They also produce seeds at a much younger age and higher rate than their bigger counterparts, and establish much more quickly thus competing with the seedlings of larger spe...

Herbicide diversity needed to keep Roundup effective

...ows the practice will drastically reduce weeds and seeds that are resistant to a popular herbicide. Exce...lmost eliminate resistant marestail and its viable seeds in the soil. "Another herbicide application is ...percent decrease in the number of viable marestail seeds in the soil. Continuing with only Roundup and R...

Ozone depletes oil seed rape productivity

...ilseed rape plants. Combined with the results of previous studies which have shown a decrease in oil, protein and carbohydrate content of oilseed rape seeds in high ozone, these results (to be presented at the Society for Experimental Biology Annual Main Meeting in Glasgow on 29th June 2009) could signal a...

Ozone depletes oil seed rape productivity

...ilseed rape plants. Combined with the results of previous studies which have shown a decrease in oil, protein and carbohydrate content of oilseed rape seeds in high ozone, these results (to be presented at the Society for Experimental Biology Annual Main Meeting in Glasgow on 29th June 2009) could signal a...

Autonomous robot detects shrapnel

... exploring the use of surgical robots in the field, and this advance could play a role." In addition to its applications recovering the radioactive seeds used in treating prostate cancer, Smith said the system could also prove useful in removing foreign, metallic objects from the eye. Advances in ult...

Protecting the food crops of the future

...University, Brendan Davies, says: "Flowers are vital to the plant reproduction process as pollination leads to the development of the fruit, where the seeds are found. Everything that we eat comes from flowering plants - even the food that is fed to livestock. This means that the long-term future of the wo...

Global warming increasing the dispersal of flora in Northern forests

...result of stronger winds caused by global warming, seeds and pollen are being carried over longer distances... turbulent vertical streams, in particular, spread seeds very efficiently, even over long distances. Th... degrees Celsius warmer increased the dispersal of seeds and the speed at which populations spread througho...

Natural seed treatment could drastically cut pesticide use

...dge Technology Centre found that plants grown from seeds dipped in jasmonic acid are considerably more resi...saw promising results when researchers treated the seeds of tomato plants, sweet pepper and maize. Red spid...rch is very exciting.' Applying jasmonic acid to seeds protects many crops for at least ten weeks after g...

Researchers engineer metabolic pathway in mice to prevent diet-induced obesity

...n, a graduate student on Liao's team and an author of the study. "We know plants and bacteria digest fats differently from humans, from mammals. Plant seeds usually store a lot of fat. When they germinate, they convert the fat to sugar to grow. The reason they can digest fat this way is because they have a...

Shatter-resistant brassicas

...ods are prone to shatter, causing a 10-25% loss of seeds and up to 70% in some cases. "By artificially p... model plant Arabidopsis , completely sealing the seeds inside," says Dr Lars stergaard from the John Inne...l feed. Brassica plants normally disperse their seeds by a pod-shattering mechanism. Although this mecha...

Scientists announce top 10 new species, issue SOS

...nal inflorescence with countless flowers. After fruiting, the palm dies and collapses. Soon after the original publication of the species description, seeds were disseminated throughout the palm grower community, to raise money for its conservation by the local villagers. It has since become a highly prize...

NASA uses satellite to unearth innovation in crop forecasting

... Soil moisture is essential for seeds to germinate and for crops to grow. But record droughts and scorching temperatures in certain parts of the globe in recent years have caused soil to d...

Scientists announce top 10 new species; issue SOS

...nal inflorescence with countless flowers. After fruiting, the palm dies and collapses. Soon after the original publication of the species description, seeds were disseminated throughout the palm grower community, to raise money for its conservation by the local villagers. It has since become a highly prize...

American Chemical Society's Weekly PressPac -- May 13, 2009

...dapt. The researchers found that soybean plant seeds exposed to radiation produced different amounts and types of protein than seeds from unexposed plants. The proteins protected the seeds from radio-contaminated environment. Interestingly...

Managing Douglas-fir forests for diversity

...ot removed, and these stands may provide wildlife cover for shade in summer and warmth in the winter. The stands with hardwoods will provide hardwood seeds for wildlife food, and birds can use hardwood layers in the understory for nesting and foraging. Douglas-fir mortality from black stain root disease ...

Food security: It starts with seed

...r titles include "Engineering Proteins for Improved Nutritional Value"; "Reducing Peanut Allergy Risks by Means of Genetic Modification"; "Engineering seeds for the Production and Delivery of Oral Vaccines"; and "Engineering Plants to Produce Polyunsaturated Fatty Acids". Hari Krishnan, a research molec...

Darwin in a test tube

...rved that the different finches were each adapted for the specific types of seeds that served as their primary food source. The big-beaked birds were indigenous to the places where the big seeds grew; in areas where there were also small seeds, there were also small-bea...

Ben-Gurion University of the Negev signs collaborative contract with Bayer CropScience

...BioScience, one of the three business groups of Bayer CropScience AG, plays a prominent international role in the development and commercialization of seeds and traits for agricultural crops. The company uses plant biotechnology and refinement techniques to develop varieties that are adapted to the requir...

UGA licenses invention that kills food-borne pathogens in minutes

...trained personnel; and because it may be harmful to the environment, it also is subject to environmental regulations. Chlorine may also damage certain seeds and delicate sprouts. "We can't rely on chlorine any longer," Doyle said. "In addition to being safer and more acceptable in terms of appearance...

Pest management specialist Charles Summers wins prestigious Woodworth Award

...roplasma, Spiroplasma kunkelii, is seed-borne in cobs left in the field overwinter. This provides a ready source of inoculums in the spring when these seeds germinate. This is especially important where corn follows corn." His research also found that corn leafhopper completes its development from egg t...

AGU journal highlights -- March 25, 2009

...nts yield meteorological clues Airborne acid may help soot turn into cloud seeds Understanding sea temperature-atmospheric pressure links in North Atlanti...0.1029/2008GL036359 4. Airborne acid may help soot turn into cloud seeds Carbon soot aerosols from combustion of fossil fuels and forest fires d...

Doubling a gene in corn results in giant biomass

... gets much bigger at the end of the season." The ears of corn have fewer seeds compared to the normal corn plant and could be a good feed for livestock. "...dard, Moose said. "The first time I did this, I thought, well, maybe the seeds just didn't get pollinated very well, so I hand pollinated these ears to ma...

Doubling a gene in corn results in giant biomass

... gets much bigger at the end of the season." The ears of corn have fewer seeds compared to the normal corn plant and could be a good feed for livestock. "...dard, Moose said. "The first time I did this, I thought, well, maybe the seeds just didn't get pollinated very well, so I hand pollinated these ears to ma...

Study predicts when invasive species can travel more readily by air

...lant pathogens, happen when people purposely bring fruit aboard, or they may bring in a plant that makes it through inspections, or they may just have seeds stuck in the soles of their shoes." These activities compound over the entire global system, threatening local economies, public health and native...

Probing and controlling 'molecular rattling' may mean better preservatives

...the discovery could help to extend the shelf life of vaccines significantly and also could be applied to preserving other biological materials such as seeds and prepared foods. The insight gained could even help to preserve library books. These measurements can help determine the rate at which the changes ...

Abandon hope

...belief that hope can motivate people to solve overwhelming social and environmental problems. "Is hope a placebo, a distraction, merely sowing the seeds of disillusionment?" they ask, in an opinion piece titled "Abandon Hope." The authors, co-founders and directors of the Conservation Ethics Group, an ...

CSHL researchers identify gene that helps plant cells keep communication channels open

...and keep the channels open by turning on the GAT1 gene in their stem cells. seeds in which this gene failed to work were observed by the CSHL team to give ri... gained notoriety as a major cause of cell death and aging. In mutant plant seeds that lack a functional GAT1 gene, stem cells brim with high levels of these...

Detecting disease in greenhouse plants

...part of U.S. agriculture. Nearly $200 million of food is produced in domestic greenhouses each year, and the facilities play a vital role in producing seeds and transplantable vegetation. Understanding how to keep greenhouse plants healthy can translate to increased revenue for producers. Kenneth R. Sum...

From seed to nuts: human ancestor's face evolved to eat survival foods

...of modern humans may have evolved to allow them to eat large, hard nuts and seeds as part of a survival strategy, according to a new study by an internationa... structurally reinforced face to crack open and ingest large, hard nuts and seeds during periods when preferred, softer foods were in short supply. "An in...

Early humans had 'jaws of steel'

... the size of the objects were larger than the previously hypothesized small seeds and nuts. "These fall-back foods hard nuts and seeds were important survival strategies during a period of changing climates an...

Fighting obesity and illness with a novel approach to nutrition

...roducts. French company Valorex, the lead partner in EUREKA Project E! 3407 EUROAGRI+ OMS, has developed an innovative way of thermo-extruding the seeds from linseed, a plant rich in Omega-3, which makes it highly suitable as an additive for cattle feed. Previous studies conducted by Valorex indica...

Plant soybean early to increase yield

...re planted approximately every 2 weeks starting in late March and ending in early June. Detailed measurements of soybean yield components (pod number, seeds per pod, and seed mass), nodes, and reproductive nodes were counted by hand just before harvest. Oil and protein concentrations were determined by nea...

Gene's past could improve the future of rice

...genes responsible for those traits disappeared. "Humans knew that if the seeds stayed on the plant, or it had a higher yield, they could save some of the seeds to plant next year," Jackson said. "That was unintentional breeding." Th...

New book plants seed for biodiverse food production

...for farmers in Southern African countries to share seeds and their knowledge about them, it also is becomin...on practice for other countries to profit from the seeds and their healing benefits without compensating th...ure." Thompson says the corporate pillaging of seeds is destroying the world's biodiversity, and the bo...
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