Welcome To Website IAS

Hot news

Independence Award

- First Rank - Second Rank - Third Rank

Labour Award

- First Rank - Second Rank -Third Rank

National Award

 - Study on food stuff for animal(2005)

 - Study on rice breeding for export and domestic consumption(2005)


- Hybrid Maize by Single Cross V2002 (2003)

- Tomato Grafting to Manage Ralstonia Disease(2005)

- Cassava variety KM140(2010)

Website links
Vietnamese calendar
Visitors summary
 Curently online :  5
 Total visitors :  4282052

GM Poplar Field Trials Result to Sustainable Biomass Production Without Isoprene Emission
Thursday, 2020/01/16 | 07:54:14

A group of scientists were able to successfully developed genetically modified (GM) poplar trees that do not emit the gas isoprene. Two field trials in the US showed that the GM poplars were not affected by their non-production of isoprene and they grew normally just like conventional poplars.


Isoprene is a gas produced by poplar plants like palms and eucalyptus in their leaves during growth as a response to climate stress. Isoprene helps the plant cope up against stress by signaling cellular processes to produce protective molecules. When the emitted isoprene from poplars reacts with pollution gasses in the air, they produce the respiratory irritant ozone. Another effect of isoprene is the higher level of atmospheric aerosol production, which is known to contribute to global warming. Poplar trees cover an area of about 36,294 square miles at present and due to their applications in biofuel, wood, and paper production, their isoprene emission has greatly increased in the last 15 years and may become a threat to the human health and our atmosphere.


A team of scientists from the University of Arizona, Helmholtz Research Center, Portland State University and Oregon State University developed the GM poplars using RNA interference or gene silencing. In this case, the scientists turned off the poplar's trait to produce isoprene. They found that the GM poplars were not affected by the stressful climates during biomass production while not having to rely on isoprene production to respond to the high Arizona temperatures during the trials. GM poplars were still able to make cellulose for biofuel production and were able to cope even without isoprene because most plantation growth took place during the cooler and wetter time of the year. They pointed out that the high biomass production of the poplar's natural seasonal cycle of growth occurs when isoprene is needed the least.


The developers are optimistic that poplars can be grown without isoprene emission and still produce enough biomass for biofuel and wood production. This will allow greater environment sustainability while developing large-scale biomass production sources as alternative to fossil fuels.


Read more from the University of Arizona

Figure: GM poplar, University of Arizona

Back      Print      View: 20

[ Other News ]___________________________________________________
  • Beyond genes: Protein atlas scores nitrogen fixing duet
  • 2016 Borlaug CAST Communication Award Goes to Dr. Kevin Folta
  • FAO and NEPAD team up to boost rural youth employment in Benin, Cameroon, Malawi and Niger
  • Timely seed distributions in Ethiopia boost crop yields, strengthen communities’ resilience
  • Parliaments must work together in the final stretch against hunger
  • Empowering women farmers in the polder communities of Bangladesh
  • Depression: let’s talk
  • As APEC Concludes, CIP’s Food Security and Climate Smart Agriculture on Full Display
  • CIAT directly engages with the European Cocoa Industry
  • Breeding tool plays a key role in program planning
  • FAO: Transform Agriculture to Address Global Challenges
  • Uganda Holds Banana Research Training for African Scientists and Biotechnology Regulators
  • US Congress Ratifies Historic Global Food Security Treaty
  • Fruit Fly`s Genetic Code Revealed
  • Seminar at EU Parliament Tackles GM Crops Concerns
  • JICA and IRRI ignites a “seed revolution” for African and Asian farmers
  • OsABCG26 Vital in Anther Cuticle and Pollen Exine Formation in Rice
  • Akira Tanaka, IRRI’s first physiologist, passes away
  • WHO calls for immediate safe evacuation of the sick and wounded from conflict areas
  • Farmer Field School in Tonga continues to break new ground in the Pacific for training young farmers
Designed & Powered by WEBSO CO.,LTD