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Tag: "seeds" at biology news

Acid rain causing decline in sugar maples, say researchers

...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...

Unique soybean lines hold promise for producing allergy-free soybeans

..., Joseph said. After the two lines were isolated, seeds were sent to the Danforth Center for additional mo...erman, a lead scientist at Danforth who probed the seeds with post-doctoral researcher Monica A. Schmidt. "We then isolated the gene responsible for the lesi...

More than drought affecting wheat yields

...nocked the grain from the heads, Allen said. These seeds germinated into a heavy volunteer wheat crop, which went uncontrolled through the summer. The wheat curl mite over-summered on this "green bridge" and moved into the new crop. Control of volunteer wheat this summer will be key to controlling the wh...

Study provides new understanding of spontaneous hybridization

...ts that attack sunflowers, they also produced more seeds than the uncrossed plants. "The results show for the first time that adaptive trait introgression can be a potent evolutionary force, broadening our view of the mechanisms by which populations adapt to their environments," explain the authors. ...

Genetic snooze button governs timing of spring flowers

...e organs of plants and are responsible for forming seeds and fruit. As their name implies, biennials compl...rients from the valuable root to the production of seeds and flowers. And although Amasino and his group have demystified some of the molecular underpinnin...

Tiny airborne particles are a major cause of climate change

...and desert dust. These tiny particles serve as the seeds around which water vapor in the air condenses, for...reviously found evidence to suggest that the extra seeds planted in the atmosphere by the emission of man-made aerosols (pollution, forest fires, and fuel co...

It's all in the genes

...Borneo in Southeast Asia, where he is planting the seeds for further study. ...

Bt cotton in China fails to reap profit after seven years

... the Bacillus thuringiensis gene inserted into the seeds to produce toxins. But these toxins are lethal only to leaf-eating bollworms. After seven years, populations of other insects - such as mirids - have increased so much that farmers are now having to spray their crops up to 20 times a growing season t...

UC San Diego biologists solve plant growth hormone enigma

... novelty items. For example, Zhao points out that seeds significantly increase the effort and waste involved in producing tomato sauce. "This study is a real tour de force," commented Martin Yanofsky, a professor of biology at UCSD, who was not one of the authors of the study. "People have been trying t...

Discovery may speed forest biotechnology

...sm that causes them to begin flowering and produce seeds ?a major step forward in understanding the basic genetics of tree growth. The findings were made by scientists from the Swedish University of Agricultural Sciences, Oregon State University and two other institutions, and published in the journal Sci...

Strawberries by design

...The rapid growth of new shoots, the high number of seeds generated and the ease in which new plants may be established, make this plant an ideal candidate as a platform for large-scale studies to elucidate gene function. The new protocol involves taking strawberry plant tissue from its original site and ...

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

...ontrol of grass inflorescence architecture because seeds of cereal grasses (e.g. rice, wheat, maize) provide most of the world's food. Grass seeds are borne on axillary branches, whose branching patterns dictate most of the variation in form seen ...

Researchers release new variety of asparagus

...ate the females, leading to seed production. These seeds are then sold and planted by farmers who produce t...ntually will buy. "The first commercial harvest of seeds has only just been completed," Roose said. DePaoli asparagus is similar in taste to previous variet...

CU, USDA team to curb two invasive, poisonous vines

...common milkweed, swallow-worts release lightweight seeds with featherlike tails that are dispersed by wind and passing deer. Interestingly, between two to eight plants can germinate from each seed. ...

Pleasing plant shapes explained by new computer model

...vals. This creates the striking spiral patterns of seeds observed in sunflowers, daisies, and many other plants. Other patterns, such as branching at right angles observed in lilac branching, can be also be simulated using different parameter values. The subject of the study was a plant called Arabidopsi...

Sweetgum tree could help lessen shortage of bird flu drug

...de, researchers say. Chemists have found that the seeds of the sweetgum fruit contain significant amounts ...harvested when they are still green and before the seeds have been dispersed, Poon says. Each tree can hold hundreds, if not thousands, of seedpods. ...

The secret love life of plants

A large portion of plant seeds is endosperm. It has the important task of nourishing the plant embryo during the early stages of its development. In flowering plants, there is a complicated double-fertilisation mechanism that arises among embryos and endosperm. They develop toge...

Plants, too, have ways to manage freeloaders

...a greenhouse at UC Berkeley, Povich planted lupine seeds collected from two lupine species at the site. As the seeds sprouted, he inoculated each plant with one of 10 different strains of bacteria, then harvested the ...

Wild Gorillas Handy with a Stick

...nuts in the wild; orangutans use sticks to extract seeds from the spiny, sharp husk of Neesia fruits in the wild, and bonobos use various tools, including moss as sponges and leafy twigs to swat away bees.) That no one has ever observed wild gorillas using tools—despite decades of intensive study—prompted ...

Scientists map one of biology's critical light-sensing structures

...e of most crops, as most of what we eat comes from seeds and fruits produced by flowers. In another scenario, it may be possible to dampen the role of phytochromes in crop plants to avoid having them compete with each other for light when grown close together in a field. ...

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