Ozone and Heavy Metals

Reactions of coniferous and deciduous trees in the context of above ground (ozone) and below ground (heavy metals) pollution

Aim of the project

Roots after stress caused by ozone and heavy metals

The following questions/hypotheses will be answered: Are the effects of ozone in the air and heavy metals in the soil independent (additive) or do they reduce or reenforce each other?

Hypothesis 1

• Airborne stress => cell injury in the leaf => reduced photosynthesis => reduced root growth => 'starving’ of the roots through missing carbon.

Hypothesis 2

• Soilborne stress => cell injury in the roots => signal substances => reduced growth by water shortage => closure of the stomata and by this reduced ozone uptake. Are there common mechanisms of cell injury or signal substances? Which bioindications and new methods are useful for research with woody plants and applications in the field?

Download these Posters

	Title / Description	Size
	Günthardt-Goerg M.S., Vollenweider P., 2002: Heavy metal allocation and toxicity: different strategy of a conifer, a deciduous tree, and a forb Projekte der FE Walddynamik	1.1 MB
	Günthardt-Goerg M.S., Vollenweider P., Egli P., 2000: Sichtbare Reaktionen auf Ozon und/oder Schwermetalle bei Pflanzen (1.) Projekte der FE Walddynamik	493 KB
	Günthardt-Goerg M.S., Vollenweider P., Egli P., 2000: Sichtbare Reaktionen auf Ozon und/oder Schwermetalle bei Pflanzen (2.) Projekte der FE Walddynamik	978 KB
	Günthardt-Goerg M.S., Vollenweider P., Egli P., 2000: Sichtbare Reaktionen auf Ozon und/oder Schwermetalle bei Pflanzen (3.) Projekte der FE Walddynamik	1.3 MB

Links

• Ozone Validation Centre
  
• From Cell to Tree Framework
  
• Ozone-Quiz

Contact

• Madeleine S. Goerg-Günthardt