Popular Info Popular Info

Title
Artificial Skin That Detect Pressure and Heat
20-Year-old to launch world’s first ocean cleaning system in 2016
Science, Technology and Innovation Award Ceremony!
Approach to carbon capture
የጎሚኖ ማሽን
How is our smartphone damaging our health?
Air Pollution Linked To Risk of Childhood Autism
A lithium-ion battery which can warn of fire hazard
በውሃ የሚሰራ መበየጃ
Spin Cycle
Nest Thermostat
The Worlds Smallest Book
Ethiopian Wins Yara Award
Water Based Nuclear Battery
Wearable Con Tactless Wallet
Wireless Heated Mug
Self-Healing Concrete
ሞፈር ላይ የሚገጠም በመስመር መዝሪያ መሳሪያ
What Technology park is? And it’s strategic importance
ተንቀሻቃሽ የብሎኬት ማምረቻ
Cars That Can Drive Themselves
የመሬት ምንጣፍ ማምረቻ ማሽን
Technology for Producing Hydrogen Fuel
Paddy/Wheat thresher
Hacking Photosynthesis
Crops Survive Extreme Heat and Drought.
Smart material from Chewing.
Audi has made a synthetic, high-grade fuel from plant sugars
Solar Power for Portable Device
Batteries included a solar cell that stores its own power
The new super planet
Octopus Arm Inspires Future Surgical Tool
Converting Carbon Dioxide Into a Valuable Resource.
Sun-power For Drinking Water
Mini agricultural plow machine
Paddy/wheat reaper harvester
Rubber Meets The Road With New Carbon
What is Uber?
Digital intelligence
Top 10 technologies of 2014
Battery technologies
Fueling cars with water
Unique waste cleanup for rural areas.
Plastic waste management
Plants found to alter soil types
High protien diets lead to lower blood pressure
Wind turbines become more efficient with added rotors
Drone Deliveries In Project Wing trials
charging Battery Modules in Electric Cars.
Harvesting energy from walking around.
Encryption: a source of trouble
New technology turns manure into clean water
Top 10 Emerging Technologies of 2015
Solvable silicon circuits and sensors
Electric power transmitted wirelessly in japan
Famous wheat gene discovered
GM eucalyptus approved for commercial use in brazil
One Billion Trees a Year Using Drone Technology
Material Harder Than Diamond.
New gold nano cluster technology improves solar cell performance
New discovery will enhance yield and quality of cerial and bio energy crops
Researchers investigated the charge transport perovskite solar cells
Ethiopia agriculture hotline provides opportunities for farmers
First Head Transplant Could Happen In Two Years
Battery 'can charge phone in 1 min'
Latest in clean water tech: tech bicycle
Electric power for transportation sector
Engineering Environmentally Friendly Dam.
Moth Species for Biological Weed Control
Oxides could advance memory devices
Mind reading headphones play music based on your mood
Skin wearable health monitors technology
Plant Receptors for Pathogens
Brain controlled bionic legs are finally here
New cloaking device uses ordinary lense to hide objects
Don't drink bottle warm water, study says
Electrical Stimulation Proven To Accelerate Healing.
Smart bulb that can adjust itself based on your behavior
Producing plants and animal meal without soil
Training workshop on STI data collection has been conducted
Simple computer test can detect early signs of alzheimer daises
Hazar Seed Industry Coming To Ethiopia
Sunflower shaped dish makes power, fresh water
Biologists delay the aging process by remote control
China plans to clone everything from beef cattle to the family dog in this giant factory!
Energy drinks raise blood pressure, study finds
New UN Initiative to Boost Access to Science and Technology
Changing temperature power in hard to reach places
Solar cell efficiency improved with new polymer device
Scientists might be able to change the cells in blind people’s eyes, giving them the power to see again.
Plants prepackage beneficial microbes in their seeds
Ethiopia; WB to assist Ethiopians industrial development
China’s Huawei boosts schools connectivity through projects in Ethiopia
New technology tha prolonged power in mobile devices
Car manufacturers make their own green technology choices regardless of policy
Smart, eco-friendly new battery made of seeds and pine resin
Microbe Produces Ethanol From Switch Grass
Converting Food Waste To Other Products
Ontogenetic therapy will allow blind people to see again
Fingerprint using sweat could solve decade old crimes
European commission launches scientific debate on how to feed the planet
MIT engineers develop new technologies to battle super bugs
New method to control nano particles with light and magnet
First commercial quantities of cellulose ethanol from woody biomass marketed
New Technology For Graphene Commercialization.
Harnessing Kinetic Energy From Door Movement

News News

Back

Hacking Photosynthesis

Scientists of Cornell University working with plant enzymes have figured out a way to enhance photosynthesis, creating turbocharged crops that could one day lead to crazy high agricultural yields.
The world's population is projected to pass nine billion by 2050. And across the planet, crop yield is limited by the efficiency of photosynthesis capturing sunlight to produce sugar and oxygen from carbon dioxide and water. The conversion of CO2 to sugar is mediated by an enzyme called Rubisco. And in plants, it's a somewhat inefficient, slow-working enzyme. To compensate, plants have to produce a lot of it.  Rubisco is possibly the most abundant protein on Earth, Nature reports, accounting for up to half of all the leaf's soluble protein. This tobacco plant depends on a cyanobacterial enzyme for carbon fixation that works faster than the plant counterpart. Incorporation of this enzyme could lead to increases in the rate of photosynthesis and agricultural yield.  But there might be another way. Photosynthetic microbes called cyanobacteria have a faster form of Rubisco that's coupled with CO2-concentrating mechanisms. However, attempts at replacing the CO2-converting machinery in plants with that of cyanobacteria have been unsuccessful.
By replacing the gene for the carbon-fixing enzyme in tobacco plants with two genes for the cyanobacterial version, their engineered plants perform photosynthesis and have higher rates of CO2 turnover than plants with the native version of the enzyme. When grown in an elevated CO2 environment
This is the first time that a plant has been created through genetic engineering to fix all of its carbon by a cyanobacterial enzyme. And it is an important first step in creating plants with more efficient photosynthesis.
The researchers made several other genetic substitutions to include proteins for manufacturing the enzyme. Sometimes Rubisco wants to react with oxygen instead of CO2, which is a waste of energy.
Rubisco in plants is less reactive with oxygen and the tradeoff is that it slows down carbon fixing and photosynthesis. Fast-fixing Rubisco in cyanobacteria is way more reactive with oxygen. To cope with that, cyanobacteria protect the enzyme in special micro-compartments, called carboxysomes, which keep oxygen out and concentrate CO2 for efficient photosynthesis. .
http://www.iflscience.com












 

 

19-09-2014 03:28 PM