Navigation Links
Corn dwarfed by temperature dip suitable for growing in mines, caves
Date:5/12/2014

WEST LAFAYETTE, Ind. - Lowering temperatures for two hours each day reduces the height of corn without affecting its seed yield, a Purdue study shows, a technique that could be used to grow crops in controlled-environment facilities in caves and former mines.

Raising the crops in isolated and enclosed environments would help prevent genetically modified pollen and seed from escaping into the ecosystem and crossing with wild plants.

Cary Mitchell, professor of horticulture, said the technique could be particularly useful for growing transgenic crops to produce high-value medicinal products such as antibodies for the budding plant-derived industrial and pharmaceutical compounds industry.

"Grains of corn could be engineered to produce proteins that could be extracted and processed into medicine, pharmaceuticals and nutraceuticals such as essential vitamins," he said. "This is a young industry, but what we've done is show that you can successfully grow these high-value crops in contained environments."

Mitchell described corn as a "good candidate crop" for the industry because of the plant's bounty of seeds and well-characterized genome, which can be modified in many ways. Using plants as "factories" to generate bioactive medicines would be far cheaper than the current methods that rely on cell cultures from mammals, he said.

But raising corn - a towering crop that needs bright light and heat - in a dark, cool, underground mine presented a challenge to Mitchell and then-postdoctoral researchers Yang Yang and Gioia Massa. They installed a growth chamber with insulation and yellow and blue high-intensity discharge lamps in a former limestone mine in Marengo, Indiana, to test how corn would react to an environment in which its growing conditions - light, temperature, humidity and carbon dioxide - were tightly controlled. To their surprise, the hybrid corn responded by growing "too well," said Yang.

"We coddled the plants with such luxurious conditions that the corn was touching the lamps before it had even tasseled," he said.

To reduce the corn's height, the researchers borrowed a trick used by the greenhouse industry to dwarf Christmas poinsettias. Using a growth chamber that mimicked the temperature conditions and carbon dioxide levels of the Marengo mine, they dropped the temperature to 60 degrees Fahrenheit for the first two hours of each photoperiod, the time in which the corn received light. The temperature was restored to 80 degrees for 14 hours and then lowered to 65 degrees for eight hours of darkness.

The temperature dip dwarfed stalk height by 9 to 10 percent and reduced stalk diameter by 8 to 9 percent without significantly affecting the number and weight of the seeds.

"This is a technique you could easily do in a mine or cave," Mitchell said. "It is an affordable, non-chemical means of taking genetically modified crops to harvest maturity without getting any kind of pollen or seed into the ecosystem."

He said that former mines could be prime locations to grow high-value, transgenic plants because their natural coolness lessens the need to ventilate the heat produced by lamps. The high levels of carbon dioxide in mines also promote plant growth.

"Productivity in a controlled environment is superior to that in the field, and you can raise more than one crop per year," Mitchell said. "Controlled environment agriculture is going to be one of the big movements of the 21st century."


'/>"/>

Contact: Natalie van Hoose
nvanhoos@purdue.edu
765-496-2050
Purdue University
Source:Eurekalert  

Related medicine news :

1. MadgeTech, Inc. Develops Temperature Recorder for Harsh Environments
2. Heart Deaths Rise With Extreme Temperatures, Study Finds
3. Body Temperature May Matter After Cardiac Arrest
4. Temperature Sensors Market is Expected to Reach $4.51 Billion Units by 2016 with an Estimated CAGR of 5.6% - New Report by MarketsandMarkets
5. General Plastics to Spotlight Latest High-Temperature Tooling and Thermoformable Foam Boards at AeroDef(R) Manufacturing
6. Home hot water temperatures remain a burn hazard for young and elderly
7. Low-Temperature Benchtop Chillers Provide Robust Cooling for Laboratory Equipment
8. MadgeTech, Inc. Introduces the New Extended Temperature Range for the HiTemp140 Data Logger Series
9. MadgeTech, Inc. Introduces the New Temp1000IS Intrinsically Safe High Temperature Data Logger
10. Cell nucleus protein in brown fat cells governs daily control of body temperature
11. Disease Outbreaks Can Be Correlated with Increased Air Temperatures and Changes in Precipitation Reports White Paper
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Corn dwarfed by temperature dip suitable for growing in mines, caves
(Date:5/27/2016)... ... ... Southland Log Homes , designer and manufacturer of America’s Favorite Log ... be found on its website at SouthlandLogHomes.com. , The designs of the wood ... craftsmanship of timber post and beam construction. The result is a barn that ...
(Date:5/27/2016)... , ... May 27, 2016 , ... W.S. Badger ... announced today that it has been recognized as one of the best small businesses ... was named as one of nine small businesses providing progressive benefits to new parents ...
(Date:5/27/2016)... (PRWEB) , ... May 27, 2016 , ... With over ... to walk, the demand for a sustainable product to aid in the rehabilitation process ... aid in the recovery of individuals with hemiplegia due to stroke. , Ekso Bionics ...
(Date:5/27/2016)... New York, NY (PRWEB) , ... May 27, ... ... caregivers to casual readers, this installment is bolstered by inspiring human-interest stories, courtesy ... trends and tech within the industry, from leading advocates, associations and industry leaders ...
(Date:5/27/2016)... ... ... Beleza Medspa has initiated a new program to assist active ... time that Coolsculpting is being used for for more than just cosmetic purposes. ... the prescribed body-fat standard, measured by the circumference-based tape method. The tape-test is ...
Breaking Medicine News(10 mins):
(Date:5/27/2016)... May 27, 2016 Hutchison ... company focused on the highly lucrative global oncology ... pipeline of potential first-in-class or best-in-class tyrosine kinase ... development with strategic partners. HCM,s profitable Chinese healthcare ... market. We expect progress of the mid-to-late-stage pipeline ...
(Date:5/27/2016)... 27, 2016 Amarantus BioScience Holdings, Inc. ... products for Regenerative Medicine, Neurology and Orphan Diseases, today announced that ... at two upcoming investor conferences: SeeThru Equity MicroCap ... New York City , NY When: ... Marcum MicroCap Conference   Where: Grand Hyatt Hotel, 109 ...
(Date:5/26/2016)... , May 26, 2016 According to ... Waste Management Market - U.S. Industry Analysis, Size, Share, Growth, ... market in the U.S. was valued at US$ 5.89 Bn ... of 3.4% from 2015 to 2023 to reach US$ 7.99 ... of current and emerging needle free drug delivery devices and ...
Breaking Medicine Technology: