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Roots meshed in waste materials could clean dirty water

A new water treatment system, developed by Penn State researchers, utilizes discarded materials and plant communities to remove pollutants from wastewater. The system has shown to be effective in reducing pollutants by over 90% within three days, making it a promising alternative for conserving global fresh water supplies.

BSSA tip sheet for April 2010

This BSSA tip sheet documents the long history of earthquake monitoring by the Southern California Seismic Network (SCSN), detailing its evolving sensitivity over time. Researchers also examine the predictive capability of models to estimate ground shaking during large earthquakes in the San Francisco Bay Area.

SourceSeismological Society of America·JournalBulletin of the Seismological Society of America·DateApr 11, 2010

How plants put down roots

Scientists have discovered how plants form their first roots by identifying key genes and hormones involved in the process. The discovery of transcription factor MONOPTEROS and its role in activating genes TMO5 and TMO7 could lead to breeding plants with improved root systems.

SourceMax-Planck-Gesellschaft·JournalNature·DateMar 15, 2010

Root or shoot

Researchers at the Salk Institute discover two genetic master switches that determine a plant's polar axis, with one group promoting root development and the other shoot growth. The study reveals an antagonistic relationship between these switches, which are regulated by multiple mechanisms to ensure proper spatial distribution.

SourceSalk Institute·JournalNature·DateFeb 28, 2010

Roots key to second Green Revolution

Researchers have found that shallow-rooted bean plants can thrive in poor soil conditions, improving crop production by 600% and decreasing erosion. Shallow-rooted soybeans are also being developed for low-phosphorus soils, while efforts are underway to improve nitrogen efficiency in corn.

The roots of food security

Researchers found that auxin hormones regulate root branching in plants, enabling more efficient nutrient uptake and storage, which can support high-yield crops and enhance food security.

SourceMax-Planck-Gesellschaft·JournalProceedings of the National Academy of Sciences·DateJan 27, 2010

Exploring the Stone Age pantry

Researchers have discovered that early Homo sapiens consumed wild sorghum and other pre-domesticated cereals around 100,000 years ago. This finding broadens our understanding of human evolution by showcasing the importance of dietary transformation through cereal consumption.

SourceUniversity of Calgary·JournalScience·DateDec 17, 2009

When roots lose contact

Researchers found air gaps in roots that formed during dry periods, which partially refilled after irrigation. However, older parts of the taproot showed limited re-establishment of contact, raising concerns about severe drought's impact on plant nutrition.

SourceHelmholtz Association·JournalVadose Zone Journal·DateNov 26, 2009

More food at lower cost

A new study published in Nature Cell Biology has discovered a way to increase the length of root hairs on plants, potentially improving crop yields. This method enables plants to take up minerals and water more efficiently, reducing fertiliser waste and promoting sustainable food production.

SourceUniversity of Bristol·JournalNature Cell Biology·DateDec 14, 2008

Bacteria manage perfume oil production from grass

Scientists discovered bacteria in Vetiver grass roots that enhance essential oil production while altering molecular structure. The bacteria change the oil's properties to include insecticidal, antimicrobial, and antioxidant characteristics.

SourceWiley·JournalEnvironmental Microbiology·DateOct 31, 2008

Study finds that damaged land can restore itself

A new study published in Restoration Ecology reveals that damaged environments can be restored within a matter of years at virtually no cost. Spontaneous revegetation allows plants from surrounding areas to move in and take root, naturally restoring the site.

SourceWiley·JournalRestoration Ecology·DateApr 1, 2008

Human ancestors: more gatherers than hunters?

A recent study of chimpanzees in western Tanzania suggests that early humans may have dug potato-like foods with tools, challenging the long-held assumption that meat was more important for brain evolution. The research found that chimps only dig for roots during the rainy season, when other food sources are abundant.

SourceUniversity of Southern California·JournalProceedings of the National Academy of Sciences·DateNov 12, 2007

Could 'hairy roots' become biofactories?

Rice scientists have successfully grown hairy roots for 4-and-a-half years, a breakthrough that could lead to mass production of medicines like vincristine and vinblastine. The transgenic roots contain genes from both the host plant and bacteria, offering a stable alternative to traditional cell cultures.

SourceRice University·JournalBiotechnology Progress·DateOct 30, 2007

Sowing seed on salty ground

Researchers identified a sodium transporter gene that helps plants grow better in low-nutrient conditions. The OsHKT2;1 transporter allows plants to take up sodium, reducing the toxic effects of salt stress and even enhancing growth under nutrient-poor soils.

SourceEMBO·JournalThe EMBO Journal·DateJun 6, 2007

Salk scientists get to the root of plant cell fate

Researchers at the Salk Institute identified a key role for the TOPLESS gene in plant development, enabling them to engineer plants to grow leaves or flowers instead of roots. This breakthrough allows for the manipulation of plant polarity later in embryogenesis, offering opportunities for agricultural improvements.

SourceSalk Institute·JournalScience·DateJun 8, 2006

Plants discriminate between self and non self

Researchers found that plants grow more and longer secondary roots on the non-self side, suggesting a mechanism based on physiological coordination. This coordination might involve internal pulsing of hormonal or electrical signals that desynchronize when plants are separated.

Underneath it all

Scientists study soil insects to develop sustainable pest control methods, such as using flavanoid compounds and silk to deter pests. Researchers also investigate the impact of genetically modified crops on soil organisms, revealing potential effects on springtails and earthworms.

How roots control plant shoots

Researchers at University of Utah discovered a gene, BPS1, in plant roots that sends chemical signals controlling leaf growth. The study found that manipulating this gene can change the way leaves develop, even when plants have enough food and water.

SourceUniversity of Utah·JournalCurrent Biology·DateOct 4, 2004

Edible urban plants found to contain lead

Researchers at Northwestern University found that leafy vegetables and herbs in Chicago residential gardens are highly likely to be contaminated with lead. The study's findings highlight the importance of testing soil lead levels and developing strategies to ensure safety for urban gardeners and their families.

SourceNorthwestern University·JournalThe Science of The Total Environment·DateNov 21, 2003

UCSD biologists discover key step for 'designer plants' that could clean up heavy metals

Researchers at UCSD have discovered a chemical that allows plants to transport phytochelatins from roots to stems and leaves, enabling them to detoxify heavy metals like lead, arsenic, and cadmium. This finding brings bioremediation, using plants to clean up contaminated soil, closer to reality.

SourceUniversity of California - San Diego·JournalProceedings of the National Academy of Sciences·DateAug 8, 2003

Auxin takes root

Researchers have made significant advances in understanding the molecular pathway of root development by studying the auxin signaling pathway. The study identified a novel plant gene called NAC1, which is expressed in root tips and regulates the effect of auxin on root formation.

SourceCold Spring Harbor Laboratory·JournalGenes & Development·DateNov 30, 2000

Turning salt and water into wine

A new technology called Partial Rootzone Drying (PRD) has emerged as a solution to reduce river water irrigation without exacerbating saline soils. By alternating irrigation patterns, half of the roots can be kept moist while the other half are kept dry, conserving water and maintaining fruit production.

Researcher Identifies Two New Violet Species In Central America

Two new violet species have been discovered in Central America, Hybanthus hespericlivus and Hybanthus denticulatus, characterized by their distinctive physical features. The violets, which are shrubs, were previously misclassified but have now been identified as distinct species through molecular studies.

SourceOhio University·JournalNovon A Journal for Botanical Nomenclature·DateFeb 23, 1998