Om Parkash of the University of Massachusetts Amherst leads a research team that uses genetic engineering to produce rice plants that block the uptake of arsenic, which could increase production of this valuable crop and provide safer food supplies for millions.
“By increasing the activity of certain genes, we can create strains of rice that are highly resistant to arsenic and other toxic metals,” says Parkash, a professor of plant, soil and insect sciences. “Rice plants modified in this way accumulate several-fold less arsenic in their above-ground tissues, and produce six to seven times more biomass, making the rice safer to eat and more productive.” This could help alleviate the current world-wide rice shortage.
Deep tube wells installed to provide drinking water in Bangladesh and other countries are producing water with naturally occurring levels of arsenic that greatly exceed safe limits in drinking water. Groundwater is then being used to irrigate rice paddies, and this irrigation is causing a buildup of arsenic in topsoils that is toxic to the rice plants, reducing the amount of rice that can be produced in a given area.
According to Parkash, arsenic builds up in all parts of the plant, including the rice grains used for food, creating health problems in hundreds of thousands of people, including several forms of cancer. Arsenic is also present in the rice straw used as animal fodder, causing arsenic to enter the food chain in dairy products and meat, and affecting the health of animals.
“Already on the Indian subcontinent, particularly in Bangladesh and West Bengal, there are more than 300,000 people who have developed cancer from arsenic poisoning by drinking contaminated water and eating contaminated food,” says Parkash. “The World Health Organization has dubbed this one of the major environmental disasters in human history.”
Parkash is currently working with the UMass Amherst Office of Commercial Ventures and Intellectual Property and several interested companies to bring this technology to the marketplace. “Basically, the companies will use our gene constructs in new or existing rice lines, producing hybrid rice that will go through the cultivation and seed production stage,” says Parkash. “Then the new strains of rice will be commercialized and brought to market.”
Parkash’s research is funded through the Massachusetts Technology Transfer Center from the Office of the President of the University of Massachusetts. A podcast featuring research by Parkash can be found at http://www.umasstechcast.org.
Om Parkash | newswise
Microjet generator for highly viscous fluids
13.02.2018 | Tokyo University of Agriculture and Technology
Sweet route to greater yields
08.02.2018 | Rothamsted Research
For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.
In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...
Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale
Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...
For photographers and scientists, lenses are lifesavers. They reflect and refract light, making possible the imaging systems that drive discovery through the microscope and preserve history through cameras.
But today's glass-based lenses are bulky and resist miniaturization. Next-generation technologies, such as ultrathin cameras or tiny microscopes, require...
Scientists from the University of Zurich have succeeded for the first time in tracking individual stem cells and their neuronal progeny over months within the intact adult brain. This study sheds light on how new neurons are produced throughout life.
The generation of new nerve cells was once thought to taper off at the end of embryonic development. However, recent research has shown that the adult brain...
Theoretical physicists propose to use negative interference to control heat flow in quantum devices. Study published in Physical Review Letters
Quantum computer parts are sensitive and need to be cooled to very low temperatures. Their tiny size makes them particularly susceptible to a temperature...
15.02.2018 | Event News
13.02.2018 | Event News
12.02.2018 | Event News
21.02.2018 | Life Sciences
21.02.2018 | Life Sciences
21.02.2018 | Materials Sciences