How will climate change influence grapevine cv. Tempranillo photosynthesis under different soil textures?

Photosynthesis Research
Urtzi LeibarF Morales

Abstract

While photosynthetic responses to elevated CO2, elevated temperature, or water availability have previously been reported for grapevine as responses to single stress factors, reports on the combined effect of multiple stress factors are scarce. In the present work, we evaluated effects of simulated climate change [CC; 700 ppm CO2, 28/18 °C, and 33/53% relative humidity (RH), day/night] versus current conditions (375 ppm CO2, 24/14 °C, and 45/65% RH), water availability (well-irrigated vs. water deficit), and different types of soil textures (41, 19, and 8% of soil clay contents) on grapevine (Vitis vinifera L. cv. Tempranillo) photosynthesis. Plants were grown using the fruit-bearing cutting model. CC increased the photosynthetic activity of grapevine plants grown under well-watered conditions, but such beneficial effects of elevated CO2, elevated temperature, and low RH were abolished by water deficit. Under water-deficit conditions, plants subjected to CC conditions had similar photosynthetic rates as those grown under current conditions, despite their higher sub-stomatal CO2 concentrations. As expected, water deficit reduced photosynthetic activity in association with inducing stomatal closure that prevents water loss. Evide...Continue Reading

References

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Aug 13, 2014·Plant Science : an International Journal of Experimental Plant Biology·J J IrigoyenF Morales
Aug 13, 2014·Plant Science : an International Journal of Experimental Plant Biology·F MoralesA Urdiain

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Citations

Oct 18, 2016·Journal of the Science of Food and Agriculture·Urtzi LeibarOlatz Unamunzaga
Dec 19, 2017·The Science of the Total Environment·A BonfanteF Terribile

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