Physiological and Proteomic Evidence for the Interactive Effects of Post-Anthesis Heat Stress and Elevated CO2 on Wheat

PROTEOMICS ◽  
2018 ◽  
Vol 18 (23) ◽  
pp. 1800262 ◽  
Author(s):  
Xiaxiang Zhang ◽  
Petra Högy ◽  
Xuna Wu ◽  
Iris Schmid ◽  
Xiulin Wang ◽  
...  
2021 ◽  
Author(s):  
Sachin Gorakshnath Chavan ◽  
Remko Duursma ◽  
Michael Tausz ◽  
Oula Ghannoum

To investigate the interactive effects of elevated CO2 and heat stress (HS), we grew two contrasting wheat cultivars, early-maturing Scout and high-tillering Yitpi, under non-limiting water and nutrients at ambient (aCO2, 450 ppm) or elevated (eCO2, 650 ppm) CO2 and 22°C in the glasshouse. Plants were exposed to two 3-day HS cycles at the vegetative (38.1°C) and/or flowering (33.5°C) stage. At aCO2, both wheat cultivars showed similar responses of photosynthesis and mesophyll conductance to temperature and produced similar grain yield. Relative to aCO2, eCO2 enhanced photosynthesis rate and reduced stomatal conductance and maximal carboxylation rate (Vcmax). During HS, high temperature stimulated photosynthesis at eCO2 in both cultivars, while eCO2 stimulated photosynthesis in Scout. Electron transport rate (Jmax) was unaffected by any treatment. eCO2 equally enhanced biomass and grain yield of both cultivars in control, but not HS, plants. HS reduced biomass and yield of Scout at eCO2. Yitpi, the cultivar with higher grain nitrogen, underwent a trade-off between grain yield and nitrogen. In conclusion, eCO2 improved photosynthesis of control and HS wheat, and improved biomass and grain yield of control plants only. Under well-watered conditions, HS was not detrimental to photosynthesis or growth but precluded a yield response to eCO2.


Data in Brief ◽  
2020 ◽  
Vol 28 ◽  
pp. 105004
Author(s):  
Jemaa Essemine ◽  
Jikai Li ◽  
Genyun Chen ◽  
Mingnan Qu
Keyword(s):  

Oecologia ◽  
2004 ◽  
Vol 142 (3) ◽  
pp. 465-473 ◽  
Author(s):  
Hugh A. L. Henry ◽  
Elsa E. Cleland ◽  
Christopher B. Field ◽  
Peter M. Vitousek

Trees ◽  
2005 ◽  
Vol 19 (6) ◽  
pp. 712-721 ◽  
Author(s):  
Chun-Wang Xiao ◽  
Osbert J. Sun ◽  
Guang-Sheng Zhou ◽  
Jing-Zhu Zhao ◽  
Gang Wu

Horticulturae ◽  
2021 ◽  
Vol 7 (11) ◽  
pp. 474
Author(s):  
T. Casey Barickman ◽  
Skyler Brazel ◽  
Akanksha Sehgal ◽  
C. Hunt Walne ◽  
Wei Gao ◽  
...  

Temporal and spatial variations in ozone levels and temporal changes in solar radiation greatly influence ultraviolet radiation incidence to crops throughout their growth, yet the interactive effects of CO2 and UV-B radiation on Basil production under sunlight environmental conditions has not been studied. Basil ‘Genovese’ plants grown under sunlit plant growth chambers were subjected to a combination of supplemental UV-B (0 and 10 kJ m−2d−1) and ambient (420 ppm) and elevated (720 ppm) CO2 treatments for 38 days after 14 days of germination. UV-B radiation treatments caused a decrease in basil stem branching, fresh mass, and stem dry mass under both CO2 treatments when harvested after 17 and 38 days of treatment. There was also an increase in basil leaf surface wax under UV-B (10 kJ m−2d−1) treatment compared to controls (0 kJ m−2d−1). Elevated CO2 treatments caused a decrease in morphological features, including specific leaf area and fresh mass. Interactive effects between UV-B and CO2 treatments existed for some morphological features, including plant height, root surface area, and average root diameter. Understanding the impacts that CO2 and UV-B radiation treatments have on basilcan improve existing varieties for increased tolerance while simultaneously improving yield, plant morphology, and physiology.


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