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Tag: "seeds" at biology news

The kapok connection -- Study explains rainforest similarities

... Africa after the continents split when the trees' seeds traveled across the ocean. The findings, funded...ss in action at the species level. Although single seeds are very unlikely to survive an oceanic voyage and then successfully become established elsewhere, s...

8 plants from South Africa may hold potential for treating high blood pressure

...na occidentalis, a very leafy tropical shrub whose seeds have been used in coffee; called septic weed Solanum nodiflorum, also known as white nightshade Tulbaghia violacea, a bulbous plant with hairless leaves often referred to as society or wild garlic Dried leaves from the plants were groun...

Scientists seek useful traits in wild cottons

... collections in small lots, sometimes as few as 10 seeds per lot. Before their work advances, they must turn a few seeds into more by growing plants in an environmentally-controlled greenhouse. Greenhouse manager...

New success in engineering plant oils

...aboratory have converted an unsaturated oil in the seeds of a temperate plant to the more saturated kind usually found in tropical plants. The research will be published online by the Proceedings of the National Academy of Sciences (PNAS) the week of March 5, 2007. While conversion of an unsaturated oil t...

Radiation therapy combo cures prostate cancer long-term

...llets, each about the size of a grain of rice. The seeds are inserted into the prostate through small needles during a brief outpatient procedure. External beam radiation therapy involves a series of 25 short daily outpatient treatments, where a radiation oncologist precisely directs high energy radiation ...

New technologies coming too fast for Indian farmers

...ferent brands of cottonseed had been sold. But the seeds come and go. In 2005, there were 78 kinds being so...at the farmers' inability to recognize the varying seeds being sold at market contributes to those woes. The farmers' desire for novelty leads to rapid turno...

Producing medicines in plant seeds

...nt University have succeeded in producing in plant seeds proteins that have a very strong resemblance to an...ons and that it is possible to produce them in the seeds of plants, which can have enormous advantages over conventional production methods. Production of ...

Brown team finds crucial protein role in deadly prion spread

.... When the flower dries up and the wind blows, the seeds disperse. Prion protein works the same way. Hsp104 acts like the wind, blowing apart the flower and spreading the seeds." Serio said that prions still multiply without fragmentation. However, she said, they do so at a much slower rate. So a drug t...

Microbes compete with animals for food by making it stink

... valuable food resources -- such as decaying meat, seeds and fruit, a new study suggests. Ecologists have...uggested that microbes are rotting fruits, molding seeds and spoiling meat to make these resources repugnant to other animals, allowing microbes to consume t...

Plant studies reveal how, where seeds store iron

Biologists have learned where and how some plant seeds store iron, a valuable discovery for scientists wo...sing the iron content of seeds. Such nutrient-rich seeds would benefit both human health and agricultural productivity." The findings were published onlin...

How did bilaterally symmetric flowers evolve from radially symmetric ones?

...had higher fitness, measured by both the number of seeds produced per plant and the number of seeds surviving to the juvenile stage, than plants with radially symmetric flowers. "This study reveals...

Plant studies reveal how, where seeds store iron

Biologists have learned where and how some plant seeds store iron, a valuable discovery for scientists wo...sing the iron content of seeds. Such nutrient-rich seeds would benefit both human health and agricultural productivity." The findings were published onlin...

Discovery of the first resistance gene to rice yellow mottle virus

...th on the leaves. The fertility and development of seeds are affected, which causes considerable yield losses at harvest. Transmission of RYMV occurs by way of insect vectors or by straightforward contact between plants. Prevention measures, like direct sowing or the burying of straw, have been implement...

A buffet for early human relatives

...vanna and include potato-like tubers, grasses, and seeds and roots from grasses. If the early hominids ate ...ost commonly found on the African savanna, such as seeds and roots from grasses, and grass-like plants called sedges, which include tubers. They also may hav...

Fragmentation rapidly erodes Amazonian biodiversity

...ed animals such as birds or bats to disperse their seeds and pollen.? Fragmentation is also changing the dynamics and structure of the forest. Tree communities in fragments are highly unstable, losing and gaining species at a high rate. Fragments also tend to lose many of their large trees and become d...

Biotech cotton provides same yield with fewer pesticides

...des and insect growth regulators, number of cotton seeds planted per acre, and the amount and types of plants in the adjacent uncultivated areas. The researchers found that the type of cotton had no effect on how much insect biodiversity was in a particular field. "Yield, pesticides and effects on non-ta...

Researchers find that bumblebees' flower choice matters

... organs, to produce seeds. Plants can only produce seeds from their own species' pollen. The pollen from an...its the first flower on a plant, 80 percent of the seeds are cross-pollinated. But by the time the bees have landed on the fourth flower on that plant, 90 pe...

Herbal medicine silymarin may help sugar-control in people with type II diabetes

...sugar levels. The herbal medicine extracted from seeds of the Milk Thistle, Silybum marianum (silymarin) is known to have antioxidant properties and research published this week in Phytotherapy Research shows that this extract can help people significantly lower the amount of sugar bound to haemoglobin i...

Tamed 11,400 years ago, figs were likely first domesticated crop

...sprout roots and grow into a plant. No grafting or seeds are necessary. Bar-Yosef, Kislev, and Hartmann suggest that this ease of planting, along with improved taste resulting from minor mutations, may explain why figs were domesticated some five millennia before other fruit trees, such as the grape, olive...

Gene therapy prevents the onset of diabetic symptoms in mice

...ressed and have a harder time growing or producing seeds and seedlings. "Because of the detailed measurements for the last 50 years, we know almost exactly how much calcium was removed by acid rain," said Fahey. "Our treatment was designed to replace just that amount of calcium to bring the system to what...

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