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 :  2
 Total visitors :  6318778

Transgenic Common Bean Offers More Sustainable Strategy Against Whitefly
Thursday, 2022/09/08 | 08:34:40

Brazilian researchers developed a line of transgenic common bean that was found to have a significant mortality effect against whitefly (Bemisia tabaci) while producing no effects on other insects. This can potentially provide farmers an alternative measure to combat the devastating pest without resulting to chemical pesticides.

 

Whiteflies are vectors to viruses that can affect yield and grain quality of crops. It is also a common pest of the common bean, and farmers often use chemical pesticides to control it and the spread of disease. Previous studies have identified common bean cultivars with tolerance to the whitefly through antixenosis, but no common bean cultivar has been developed or registered for resistance to whitefly up to now.

 

Scientists from Brazil, where the common bean is produced in three growing seasons per year, developed the first common bean transgenic line with tolerance to whitefly. They were able to produce two transgenic lines using an intron-hairpin construct to induce post-transcriptional silencing against the whitefly vATPase (Bt-vATPasegene, with stable expression of siRNA. The presence of bands was confirmed by Northern blot analysis. Bioassay experiments were also performed, and the transgenic common bean Bt-22.5 line was found to have significant mortality on adult whiteflies. They also found that the transgenic bean did not affect the virus transmission of the insects, nor were there any effects on non-target insects like black aphids, leafminers, and the whitefly parasitoid Encarsia formosa. It also did not show any other phenotypical difference.

 

The transgenic common bean can be an additional IPM tool against the whitefly that can help reduce the use of pesticides which, in turn, can reduce environmental and financial costs.

 

More details of the study can be found in Frontiers in Plant Science.

 

Back      Print      View: 58

[ Other News ]___________________________________________________
  • Egypt Holds Workshop on New Biotech Applications
  • UN Agencies Urge Transformation of Food Systems
  • Taiwan strongly supports management of brown planthopper—a major threat to rice production
  • IRRI Director General enjoins ASEAN states to invest in science for global food security
  • Rabies: Educate, vaccinate and eliminate
  • “As a wife I will help, manage, and love”: The value of qualitative research in understanding land tenure and gender in Ghana
  • CIP Director General Wells Reflects on CIP’s 45th Anniversary
  • Setting the record straight on oil palm and peat in SE Asia
  • Why insect pests love monocultures, and how plant diversity could change that
  • Researchers Modify Yeast to Show How Plants Respond to Auxin
  • GM Maize MIR162 Harvested in Large Scale Field Trial in Vinh Phuc, Vietnam
  • Conference Tackles Legal Obligations and Compensation on Biosafety Regulations in Vietnam
  • Iloilo Stakeholders Informed about New Biosafety Regulations in PH
  • Global wheat and rice harvests poised to set new record
  • GM Maize Harvested in Vietnam Field Trial Sites
  • New label for mountain products puts premium on biological and cultural diversity
  • The Nobel Prize in Physiology or Medicine 2016
  • Shalabh Dixit: The link between rice genes and rice farmers
  • People need affordable food, but prices must provide decent livelihoods for small-scale family farmers
  • GM Seeds Market Growth to Increase through 2020 Due to Rise in Biofuels Use

 

Designed & Powered by WEBSO CO.,LTD