We have located links that may give you full text access.
On the interactions among zinc availability and responses to ozone stress in durum wheat seedlings.
Seedlings of durum wheat [Triticum turgidum subsp. durum (Desf.) Husn] were exposed to zinc nutrition and to ozone (O3 ) in a factorial combination: adequate (+Zn treatment) or no Zn (-Zn) in the nutrient solution, followed by exposure to either ozone-free air (filtered air, FA) or to 150 nL L-1 ozone (O3 ) for 4 h. Although omitting Zn from the nutrient solution failed to impose a genuine Zn deficiency, -Zn*FA durum wheat seedlings showed a typical deficiency behaviour, i.e. Zn mobilisation from root to shoot. Such inter-organ Zn redistribution, however, did not occur in -Zn*O3 plants. Exposure to each stress singly decreased the activity and the protein amount of foliar plasma membrane H+ -ATPase, but not stress combination, which even increased the H+ -ATPase expression with respect to control. In the -Zn*O3 plants, moreover, the foliar activities of the plasma membrane-bound NAD(P)H-dependent superoxide synthase and of Cu,Zn-superoxide dismutase, and the transcripts abundance of the luminal binding protein and of the protein disulphide isomerase, were also stimulated. It is proposed that, even in the absence of actual Zn starvation, the perception of deficiency conditions could trigger changes in redox homoeostasis at the plasma membrane level, helpful in compensating an O3 -dependent oxidative damage.
Full text links
Related Resources
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app
All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.
By using this service, you agree to our terms of use and privacy policy.
Your Privacy Choices
You can now claim free CME credits for this literature searchClaim now
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app