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drought in Biological News

MU researchers create drought conditions to unearth solutions

COLUMBIA, Mo. Droughts have devastating effects on farmers. In most of the world, droughts are the leading cause of crop failure. Droughts increase consumer costs, kill livestock, reduce crop yields, and trigger wildfires and dust storms, which lead to malnutrition and famine, social unrest and p...

Australia's climate: Drought and flooding in annual rings of tropical trees

Annual rings are acclaimed in representing natural climate archives. For the temperate latitudes it is known that the growth of these annual rings depend mainly on temperature and precipitation. In the tropics, however, with only slight seasonal variations, the correlation is not so evident. No...

Genome of a heat and drought resistant cereal plant analyzed

2009-01-30. The global climate is changing, and this change is already impacting food supply and security. People living in regions already affected by aridity need plants that can thrive / grow under dry conditions. One example is sorghum: Also known as milo, durra, or broomcorn, sorghum is a ...

New technique enables assessment of drought performance

Measurement of chlorophyll fluorescence is an effective way of determining how well plants can cope with low-water conditions. The technique described in the open access journal Plant Methods , published by BioMed Central, allows a quantitative and precise determination of viability in intact, dr...

Synthetic chemical offers solution for crops facing drought

RIVERSIDE, Calif. Crops and other plants are constantly confronted with adverse environmental conditions, lowering yield and costing farmers billions of dollars annually. Plants use specialized signals, called stress hormones, to sense difficult times and adapt to stressful conditions to enhance ...

International team finds key gene that allows plants to survive drought

A team of scientists from Canada, Spain and the United States has identified a key gene that allows plants to defend themselves against environmental stresses like drought, freezing and heat. "Plants have stress hormones that they produce naturally and that signal adverse conditions and help t...

Amazon carbon sink threatened by drought

This release is available in Spanish . The Amazon is surprisingly sensitive to drought, according to new research conducted throughout the world's largest tropical forest. The 30-year study, published today in Science , provides the first solid evidence that drought causes massive carbon ...

UC Riverside botanist to study role of plants in southern California's drought

RIVERSIDE, Calif. A UC Riverside botanist has been awarded a grant from the National Science Foundation to study how Southern California's plants affect the region's drought. Louis Santiago , an assistant professor of physiological ecology in the Department of Botany and Plant Sciences , wil...

Beavers can help ease drought

They may be considered pests, but beaver can help mitigate the effects of drought, and because of that, their removal from wetlands to accommodate industrial, urban and agricultural demands should be avoided, according to a new University of Alberta study. Removal of beaver should be considered...

Moss genome shows how plants invaded the land and learned to survive heat and drought

Berkeley -- Some 400 million years ago, on a lifeless lakeshore lapped by waves, floating algae learned to survive in the open air and launched an invasion that transformed the Earth into a green paradise. The secrets of these first steps onto land are now being revealed thanks to the sequencin...

Amazon forest shows unexpected resiliency during drought

Drought-stricken regions of the Amazon forest grew particularly vigorously during the 2005 drought, according to new research. The counterintuitive finding contradicts a prominent global climate model that predicts the Amazon forest would begin to "brown down" after just a month of drought and ...

More than drought affecting wheat yields

Wheat producers have more than the drought cutting into their yields this year, said two Texas Agricultural Experiment Station researchers. Dr. Tom Allen, Experiment Station assistant research scientist and plant disease diagnostician, saw more than 150 wheat samples sent to the Great Plains Diag...

Anyway you slice it, tomatoes cut through drought with new gene

New tomato research has its roots in yielding more food to feed more people, according to Dr. Kendal Hirschi about results announced today. His team's study appears in today's Proceedings of the National Academy of Sciences. The team made tomato plants over-express the gene, AVP1, which...

Researchers achieve major breakthrough with water desalination system

... Concern over access to clean water is no longer just an issue for the developing world, as California faces its worst drought in recorded history. According to state's Department of Water Resources, supplies in major reservoirs and many groundwater basins are well below avera...

New crops needed for new climate

...ictoria, Australia have found an increase in toxic compounds, a decrease in protein content and a decreased yield in plants grown under high CO 2 and drought conditions. The research, to be presented by Dr Ros Gleadow on 29 June 2009 at the Society for Experimental Biology Annual Meeting in Glasgow, has...

US-Mexico border wall could threaten wildlife species

...all group will go extinct. "Isolating populations not only reduces genetic diversity," he added, "it makes the animals more susceptible to disease, drought and other weather extremes, and predation. We've seen one or two mountain lions knock down populations of sheep once they get a taste for mutton." ...

Anti-biotech groups obstruct forest biotechnology

... journal Nature Biotechnology . Lacking that, the potential will be lost to use this powerful tool to create trees that grow faster, better resist drought or disease, restore threatened species, reduce costs, contribute to renewable energy, sequester carbon, improve environmental cleanup, and produce bad...

New crops needed for new climate

...ictoria, Australia have found an increase in toxic compounds, a decrease in protein content and a decreased yield in plants grown under high CO 2 and drought conditions. The research, to be presented by Dr Ros Gleadow on 29 June 2009 at the Society for Experimental Biology Annual Meeting in Glasgow, has...

Midget plant gets makeover

...nced plant genome in the world and is the most commonly used experimental plant today. Its small size and fast growth allow large-scale experiments on drought and salt tolerance, resistance to plant diseases, and other topics with a direct impact on economic and food quality issues to be carried out quickly ...

Troubled waters: Low Apalachicola River flow may hurt gulf fisheries

...es (COAPS) at Florida State. Though much of the scientific research examining the consequences of low-flow conditions, primarily caused by extended drought in recent years, has focused on the Apalachicola River and the estuary system of Apalachicola Bay, the Florida State researchers instead examined the ...

World Day to Combat Desertification focuses on human security

... this year's World Day to Combat Desertification is 'Conserving land and water = Securing our common future'. Desertification, land degradation and drought (DLDD) deprive people of food, water and their homes and can undermine security and even trigger conflicts. According to the UN Convention to Combat D...

CU-Boulder study shows Maya intensively cultivated manioc 1,400 years ago

...ong been known to be staples of the ancient Maya, but they are sensitive to drought and require fertile soils, said Sheets. "As 'high anxiety' crops, they r...ya," said Sheets. "But manioc, which grows well in poor soils and is highly drought resistant did not. I like to think of manioc like an old Chevy gathering d...

Counting sheep in climate change predictions

...g a mathematical simulation. The sheep appear to be vulnerable to increased drought in the area - a side-effect of global climate change. More severe drought will eventually lead to a decrease in the sheep population. Being able t...

NASA uses satellite to unearth innovation in crop forecasting

...." By definition, the severity of agricultural drought is determined by root-zone soil water content. So ...ne soil moisture prediction also directly improves drought monitoring. And Bolten says results from AMSR-E ar...aso the hardest. And the U.S. is not unaffected -- drought in 2008 led to an estimated $1.1 billion in crop l...

Hunt for 'climate-ready' crops accelerates as organizations search seed collections worldwide

...search for novel traits with tolerance to heat and drought stresses in Chilean maize crop collections; a proj...probe crop collections for critical traits such as drought or heat tolerance. GCP is offering funding for sci...proving nutritional quality in maize, by adding in drought tolerance so that new varieties can benefit the mo...

Human role in Indonesian polluting forest fires -- Guido van der Werf in Nature Geoscience

..., but since then Kalimantan has become far more prone to fires prone during drought years. The population of Sumatra grew rapidly in the 1960s. However, a comp...temperature, appeared to be an equally important factor. Although severe drought provides the conditions conducive for forest fires, it is often humans who ...

Scientists urge global action to preserve water supplies for billions worldwide

... California and Himalayan Asia" workshop held at UC San Diego issued a conference declaration May 6 that noted heavy rains in Indian deserts, a recent drought in what is typically one of the wettest place on earth along the foot of the Himalayas, and other extreme weather events in recent decades. Major ...

Genetic secrets of date palm unlocked by researchers at Weill Cornell Medical College in Qatar

...fruit is a major source of nutrition in those areas, and the tree itself plays an important role in the development of sustainable agriculture in many drought and saline-affected regions of the world. References in the Qur'an have kept alive the use of dates for medicinal purposes over the centuries. Mr. ...

New Southern California beetle killing oaks

... species in the area. Further tree mortality will increase fire danger and decrease wildlife habitat in southern California. They are also concerned drought and climate change will make more oaks susceptible to an insect that is not native to California. Oak trees have a nearly continuous distribution in t...

NASA study says climate adds fuel to Asian wildfire emissions

...Borneo, and their neighbors. "This link between drought and emissions should be of concern to all of us," ... ecologist at Columbia University in New York. "If drought becomes more frequent with climate change, we can ...ate-sensitive areas like Borneo, human response to drought is a new dynamic affecting feedbacks between clima...

Drugs needed to preserve eggs for reproduction need to be given in stages

...e used by a variety of species, such as brine shrimp and eight-legged tardigrades, a microscopic water-dweller also known as "water bears," to survive drought conditions. Scientists like Dr. Eroglu, are showing that these sugars, such as trehalose used by tardigrades, also can help humans, monkeys and other ...

IVCC and Syngenta start project for novel insecticidal active ingredient for malaria control

...hemical insecticides are not targeted at mosquitoes, their profiles often do not match those required for public health application. This has led to a drought of new public health products. This project aims to identify lead candidate compounds for a new active ingredient that is effective against adult m...

Indigenous peoples at world summit to share climate change observations, coping techniques

...s, and the ranges of plants and animals. UNU researchers say the greatest number of people will be affected by climate change through more frequent drought and spreading desertification, by rising sea levels that inundate coastal communities, through the expanded range of diseases like malaria and dengue ...

Scorpion biodiversity

...on with these, new studies on scorpions show that the environmental pressures brought about by factors such as the amount of sunshine, temperature and drought whether individually or in combination, can act very locally to produce global changes in biodiversity. ...

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

...e been studied in detail and the team found that by removing either of the two genes, the tolerance of the model plant, Arabidopsis, to heat, salt and drought could be increased. This study was published recently in Plant Physiology, an internationally renowned journal. Signed between BGN Technologies th...

Uvalde Center water research could have national, international applications

... UVALDE Intensifying drought conditions in Texas and other parts of the U.S. pl... water conservation." Holloway said the current drought likely serves as an example of what producers in m...n, but it's a tremendous water-saving tool and the drought should convince farmers here and elsewhere in the ...

Keeping golf courses green when fresh water is limited

...hern Nevada, where the population approached two million people. The dual concerns of this population boom and a climate that features frequent severe drought conditions has created an urgent demand for officials to investigate alternative water resources to meet resident and visitor demand. Las Vegas opera...

Science returns to the Capitol Hill spotlight at March 24 exhibition

...ality Agriculture: pathogen outbreaks in agricultural systems, improving drought tolerance in plants Science Policy: the science of science and innovatio...Dakota State University American Society of Plant Biologists, Improving drought Tolerance in Plants, Sarah M. Assmann, Pennsylvania State University Am...

Statement by Sandy Andelman, co-author of 'Drought sensitivity of the Amazon Rainforest'

...uth America play a vital role in climate regulation by absorbing and storing huge amounts of atmospheric carbon. Now the study reveals that increasing drought due to global climate change can cause potentially irreparable damage to the Amazon jungle and its ability to function as a carbon "sink". "In add...

Birds in Flint Hills of Kansas, Oklahoma face population decline despite large habitat

...said. The researchers suggest that land-management practices may offer only part of the explanation for declining bird populations. "There was a drought one of the two years we studied the birds, and in that year birds didn't do well anywhere," With said. "Under global climate change, we may see more p...
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