Welcome To Website IAS

Hot news
Achievement

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)

VIFOTEC Award

- Hybrid Maize by Single Cross V2002 (2003)

- Tomato Grafting to Manage Ralstonia Disease(2005)

- Cassava variety KM140(2010)

Centres
Website links
Vietnamese calendar
Library
Visitors summary
 Curently online :  5
 Total visitors :  7516995

Study Finds Plants Sacrifice `Daughters` to Survive the Cold
Wednesday, 2017/07/05 | 08:05:03

A team of biologists from the National University of Singapore (NUS) has found that some plants selectively kill part of their roots to survive under cold weather conditions.

 

The team experimented on Arabidopsis roots to look at the effect of chilling temperature on root development and growth. They found that a temperature of four degree Celsius leads to DNA damage in the root stem cells of Arabidopsis, as well as their early descendants. However, only the columella stem cell daughters die preferentially, and the death of these daughter cells allows maintenance of a functional stem cell niche. Inhibition of the DNA damage response in these daughter cells prevents their death, but increases the probability that the other stem cells in the root stem cell niche will die due to the cold, leading to the plant's death.

 

Dr. Hong Jing Han, first author of the study, explains, "The sacrificial mechanism improves the root's ability to withstand other low temperature-related stresses. When optimal temperatures are restored, the plant stem cells can divide at a faster rate, which will in turn enhance recovery and survival of the plant."

 

For more details, read the NUS News.

 

FIGURE: Assistant Professor Xu Jian (right) and Dr Hong Jing Han (left), together with their research team at the National University of Singapore, found that the Arabidopsis (in photo) may selectively kill part of their roots to survive under cold weather conditions.

Back      Print      View: 554

[ 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