bluegrass cultivars that were tolerant of HT exhibited high net photosynthetic rates, and suggested that heat-tolerant cultivars had a greater capacity for photosynthetic electron transport than did the heat-intolerant cultivars. Selecting germplasm that can
Eric Watkins, Bingru Huang, and William A. Meyer
Yin-Tung Wang
10% fresh weight after 15 d in light or darkness, respectively ( Su et al., 2001 ). Neither quantum efficiency nor electron transport rate was affected in plants losing 30% of fresh weight after 30 d of storage at 25 °C. However, subsequent vegetative
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′)/( F m − F o ); photochemical quenching (qP) = ( F m ′ − F s )/( F m ′ − F o ); relative deviation energy from a complete balance between PSI and PSII (1 − qP) = 1 − ( F m ′ − F s )/( F m ′ − F o ′); relative electron transport rate (ETR) = Φ PSII
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stress; this finding is analogous to those found previously in ginkgo cells ( Chen et al., 2014 ). In conclusion, severe salt stress decreases pigment content and activity of photosynthetic electron transport (Φ PSII , q P ), inhibits conversion ( F v / F
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cold stress period. Higher concentrations of ascorbate and ascorbate peroxidase were also observed in evergreens in winter ( Anderson et al., 1992 ). The importance of a balanced adjustment of electron transport and antioxidative systems for avoidance
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phosphorylation pathway, ubiquinol-cytochrome C reductase (spot 386) was identified. This pathway is highly efficient in releasing energy but produces reactive oxygen species (ROS) during electron transport in the mitochondria ( Zsigmond et al., 2008 ). The
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from 12 to 21 h⋅d −1 with DLI at 12 and 17 mol⋅m −2 ⋅d −1 , respectively, which may be caused by the increased daily photochemical integral (the total electron transport through photosystem II integrated over a 24-h period). However, opposite results
Qinglu Ying, Chase Jones-Baumgardt, Youbin Zheng, and Gale Bozzo
electron transport pathway in leaf chloroplasts ( Yabuta et al., 2007 ). It is known that increased proportions of blue light generated by LEDs increase photosynthesis ( Hogewoning et al., 2010 ; Matsuda et al., 2004 , 2007 ). Therefore, the accumulations
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of photosynthesis and electron transport rate regulation in grapevines Plant Cell Environ. 22 39 48 Glenn, D.M. Erez, A. Puterka, G.J. Gundrum, P. 2003 Particle films affect carbon assimilation
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Plant J. 24 693 701 Jiang, Y.P. Cheng, F. Zhou, Y.H. Xia, X.J. Shi, K. Yu, J.Q. 2012 Interactive effects of CO2 enrichment and brassinosteroid on CO 2 assimilation and photosynthetic electron transport in Cucumis sativus. Environ. Expt. Bot. 75 98 106