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Tag: "plant" at biology news

One species, many genomes

...different way of branching - wild varieties of the plant Arabidopsis thaliana are often substantially diffe...in of this small mustard plant, a favorite of many plant biologists. Which detailed differences distinguish the genomes of strains from the polar circle or t...

Research identifies protein that signals flowering in squash plants

...ning factor for the induction of flowering in many plant species. Short day (SD) plants require a short day...In addition to its fundamental importance in basic plant biology, understanding and manipulating the photoperiodic control of flowering time is an important ...

Soils offer new hope as carbon sink

...y involved with NSW DPI in the trials, has a pilot plant at Gosford which is producing minimal amounts for research purposes. "We are hoping the technology will take hold and pyrolysis plants will be built where there is a steady stream of green or other biomass waste providing clean energy that is carb...

Discovery in orange cauliflower may lead to more nutritious crops

... The genetic mutation recently isolated by Cornell plant geneticist Li Li and colleagues -- and described in the December issue of The Plant Cell -- allows the vegetable to hold more beta-carotene, which causes the orange color and is a precursor to the essential nutrient vitamin A. While cauliflower and m...

A new plant-bacterial symbiotic mechanism promising for crop applications

...iosis, which benefits both organisms involved: the plant supplies nutritive elements to the bacteria which ... overexploitation, erosion or desertification. The plant cover thus formed can help achieve ecological restoration, by enriching the soils in nitrogen. Howev...

Pesticides choke pathway for nature to produce nitrogen for crops

...utting the lines of communication between the host plant and symbiotic bacteria. This is the mechanism by which these chemicals reduce symbiosis and nitrogen fixation." Fox began the project as a doctoral student with John A. McLachlan, director of the Center for Bioenvironmental Research at Tulane Univ...

New study finds genetically engineered crops could play a role in sustainable agriculture

...hat this particular modification, which causes the plant to produce an insecticide internally, can have an environmental benefit because large-scale insecticide spraying can be avoided. Organisms such as ladybird beetles, earthworms, and bees in locales with “Bt crops” fared better in field trials than tho...

Researchers examine carbon capture and storage to combat global warming

...orporating carbon capture and storage into a power plant costs $30 to $70 per ton of carbon dioxide-taxes on emissions level the playing field and help make it viable. A policy framework, therefore, is essential for making carbon capture and storage economical, the Stanford researchers said. ''We nee...

Small, self-controlled planes combine plant pathology and engineering

...lane to collect Fusarium samples. A Virginia Tech plant pathologist has developed autonomous unmanned aeri...l fields. David Schmale, assistant professor of plant pathology, physiology, and weed science in the College of Agriculture and Life Sciences, has not onl...

Could fungal collection hold the key to new life-saving drugs?

...ducts. Previous work at SIDR found activities from plant extracts against diabetes, obesity and psoriasis. Professor Alan Harvey, Director of SIDR said: “We are delighted to be working with CABI and to have access to their fantastic source of fungal samples. We hope that this novel source of chemical...

Plants recognize their siblings, biologists discover

... next to whom. It turns out that the docile garden plant isn’t as passive as widely assumed, at least not with strangers. Researchers at McMaster University have found that plants get fiercely competitive when forced to share their pot with strangers of the same species, but they’re accommodating when pott...

Plastic that grows on trees

...chemicals with inexpensive, nonpolluting renewable plant matter. Scientists took a giant step closer to ...gate for petroleum-based chemicals. Glucose, in plant starch and cellulose, is nature’s most abundant sugar. “But getting a commercially viable yield of H...

The kapok connection -- Study explains rainforest similarities

... the same is true for other species and for entire plant communities. "This tree has become locally extinct in parts of the Peruvian Amazon as a result of overexploitation for plywood," Dick said. "It might be saved from widespread extinction by continuing to invade new land areas through oceanic disper...

Potato wart eyed as risk to potato production

... many may be familiar with potato late blight, the plant disease responsible for widespread potato shortage...to economies that depend on potato production, say plant pathologists with The American Phytopathological Society (APS). According to Gary Franc, plant pat...

Researchers demonstrate way to control tree height

...tion of certain genes, mostly taken from the model plant Arabidopsis, which inhibited the action of a class... In trees, the compounds promote the elongation of plant cells – when they are inhibited, the cells do not fully elongate, and plants remain short and stocky...

Endosome-mediated signaling in plants

... the range of endosome-mediated signaling into the plant kingdom. The researchers show that the growth-promoting brassinosteroid receptor (BRI1) is trafficked through endosomes to enhance activation of this growth response pathway, which affects both shoot and root growth. Dr. Chory is hopeful that the...

The mouflons of the Kerguelen archipelago

...n a population. The environment of many animal and plant populations has been modified by human activity. In many cases, we are witnessing a loss of biodiversity. While scientists ask themselves about our impact on the genetic diversity of populations, this study by Denis Réale and his co-workers sheds new...

Modified mushrooms may yield human drugs

...on of various beneficial human drugs, according to plant pathologists who have inserted new genes into mush... B. Swayne Chair in spawn science and professor of plant pathology at Penn State. "Mushrooms could make the ideal vehicle for the manufacture of biopharmace...

Puzzling plankton yield secrets to role in evolution/global photosynthesis

...eococcus emerge at the primitive root of the green plant lineage, dating back nearly 1.5 billion years. Today, these microscopic, free-living creatures, among the smallest eukaryotes ever characterized, barely a micron in diameter, contribute to a significant share of the world’s total photosynthetic acti...

Madagascan tropical forests return thanks to better management and well-defined ownership

...-2000. These dry forests have the highest level of plant endemism (species found only in a particular region) in all of Madagascar and are listed as one of the 200 most important "ecoregions" of the world. The study also shows that the relationship between human population density and deforestation is much...

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