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STATE OF ISRAEL I MINISTRY OF AGRICULTURE AND RURAL DEVELOPMENT   
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שלח באימייל הדפס
 
Name: Nurit Firon, Ph.D. (Researcher)
Units: Plant SciencesVegetable and Field Crops
Research Interests / Job description  
Tel:  972-3-9683735
Cell: 050-6220735
Fax:972-3-9669642
Email:  vcfiron@volcani.agri.gov.il
Office location:Field Crops Building, room 111
Address:Department of Vegetable Research,
Institute of Plant Sciences,
A.R.O., The Volcani Center,
P.O.Box 6, Bet Dagan, 50250
Israel

Research Scientist

Research Interests / Job description
A. Solanaceae pollen biology, Pollen temperature-stress-response & thermotolerance.
B. Sweetpotato research - focus on mechanisms involved in storage root initiation and development, and root system architechture.
CV  

  

Research interests

         1. Pollen biology

            Looking into molecular mechanisms involved in microspore maturation in Solanaceae species:

  • Carbohydrate metabolism and starch accumulation during the late phase of pollen maturation.
  • Sucrose & osmolytes accumulation in maturing pollen grains.
  • Genes specifically-expressed during microspore maturation.

2. Molecular mechanisms that contribute to high pollen quality under stress conditions

               The heat-stress-response of developing pollen grains of tomato

  • Involvement of heat shock proteins (Hsps): small Hsps, Hsp70, Hsp90, Hsp100 family members as well as Hsfs.
  • Involvement of reactive oxygen species scavengers: ascorbate peroxidase family members.
  • Involvement of osmolytes and plant hormones.
  • Involvement of regulatory factors (such as DREB1, a transcription factor shown to regulate cold-responsive genes) in HS signaling.
  • We have recently demonstrated that developing pollen posses the capacity for acquired thermotolerance - respective molecular mechanisms are currently studied.

Acquired tolerance of pepper pollen grains to low night temperatures following pre-exposing pepper plants to high day-temperature conditions

  • Imposing high day temperature (HDT) conditions, prevented the adverse low night temperature (LNT) effects on vegetative as well as reproductive development..
  • A correlation between the acquired tolerance effect and sucrose accumulation in mature pollen grains was demonstrated.
  • Additional mechanisms are currently studied..

3. Sweetpotato research

  • Induction of storage root formation: Anatomical and molecular characterization.
  • The effect of root system architechture on storage root formation (yield).
  • The effect of salty water irrigation on quality & yield.
  • Introduction of variety (color, shape) and high-nutrition varieties into Israel.
Updated on: 19/04/16 10:28
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