Diurnal decline in the photosynthetic capacity of uppermost leaves  in an eggplant canopy grown in a horticultural greenhouse

Nomura, Kazuko H.; SAITO, M.; ITO, M.; Yamane, Shinzō; Iwao, Tadashige; TADA, I.; Yamazaki, Takeshi; ONO, S.; Yasutake, Daisuke; Kitano, Masaharu

doi:10.32615/ps.2022.040

Cited by 3 publications

(2 citation statements)

References 42 publications

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“…Surprisingly, distinct from previous findings Nomura et al, 2022), Tp was little affected under this apparently sink-limited state (Figs. 5.2 and 5.6).…”

Section: Feedback Inhibition Of Whole-plant Sink Limitation On Leaf P...contrasting

confidence: 99%

Exploring the potential of modifying leaf colour to increase rice productivity via improving photosynthesis and source-sink relationships

Zhou

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“…Surprisingly, distinct from previous findings Nomura et al, 2022), Tp was little affected under this apparently sink-limited state (Figs. 5.2 and 5.6).…”

Section: Feedback Inhibition Of Whole-plant Sink Limitation On Leaf P...contrasting

confidence: 99%

Exploring the potential of modifying leaf colour to increase rice productivity via improving photosynthesis and source-sink relationships

Zhou

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“…Variations in leaf physiology affect gas exchange. Nomura et al (2022) indicated that lower net CO 2 assimilation in eggplant reflected the accumulation of non-structural carbohydrates in the leaves.…”

Section: Diurnal Changes In Photosynthesismentioning

confidence: 99%

Climate change increases net CO ₂ assimilation in the leaves of strawberry, but not yield

Menzel

2023

The Journal of Horticultural Science and Biotechnology

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Fruit growth in strawberry is dependent on photosynthesis in the leaves. The main scenarios for climate change include an increase in the concentration of CO 2 in the atmosphere and an increase in temperature. This review examined photosynthesis in strawberry. The mean photosynthetic photon flux (PPF) for the saturation of CO 2 assimilation was 1,031 ± 447 µmol per m 2 per s, the median was 1,000 µmol per m 2 per s, and the range was from 467 to 2,200 µmol per m 2 per s (N = 59). The mean concentration of CO 2 for the saturation of assimilation was 869 ± 306 ppm, the median was 900 ppm, and the range was from 410 to 1,750 ppm (N = 32). The optimum temperature range for CO 2 assimilation was 20° to 30°C, with lower photosynthesis at lower or higher temperatures. The optimum temperatures for photosynthesis are higher than those for flowering and fruit growth. The impact of climate change on production varies across growing areas. In warm locations, higher temperatures increase photosynthesis, but not yield. In cool locations, higher temperatures increase plant growth and the length of the production season, but this comes at the expense of flower initiation.

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Triose phosphate utilization in leaves is modulated by whole-plant sink–source ratios and nitrogen budgets in rice

Zhou,

Zhang,

van der Putten

et al. 2023

Journal of Experimental Botany

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Triose phosphate utilization (TPU) is a biochemical process indicating carbon sink–source (im)balance within leaves. When TPU limits leaf photosynthesis, photorespiration-associated amino acid exports probably provide an additional carbon outlet and increase leaf CO2 uptake. However, whether TPU is modulated by whole-plant sink–source relations and nitrogen (N) budgets remains unclear. We address this question by model analyses of gas-exchange data measured on leaves at three growth stages of rice plants grown at two N levels. Sink–source ratio was manipulated by panicle pruning, by using yellower-leaf variant genotypes, and by measuring photosynthesis on adaxial and abaxial leaf sides. Across all these treatments, higher leaf N content resulted in the occurrence of TPU limitation at lower intercellular CO2 concentrations. Photorespiration-associated amino acid export was greater in high-N leaves, but was smaller in yellower-leaf genotypes, panicle-pruned plants, and for abaxial measurement. The feedback inhibition of panicle pruning on rates of TPU was not always observed, presumably because panicle pruning blocked N remobilization from leaves to grains and the increased leaf N content masked feedback inhibition. The leaf-level TPU limitation was thus modulated by whole-plant sink–source relations and N budgets during rice grain filling, suggesting a close link between within-leaf and whole-plant sink limitations.

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Diurnal decline in the photosynthetic capacity of uppermost leaves in an eggplant canopy grown in a horticultural greenhouse

Abstract: Highlights• Diurnal variations in eggplant leaf photosynthetic capacity were investigated • Concurrent measurements of gas exchange and chlorophyll fluorescence were conducted • Vcmax, Jmax, and TPU declined by approximately 15% toward the end of the day

Cited by 3 publications

References 42 publications

Exploring the potential of modifying leaf colour to increase rice productivity via improving photosynthesis and source-sink relationships

Exploring the potential of modifying leaf colour to increase rice productivity via improving photosynthesis and source-sink relationships

Climate change increases net CO ₂ assimilation in the leaves of strawberry, but not yield

Triose phosphate utilization in leaves is modulated by whole-plant sink–source ratios and nitrogen budgets in rice

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Diurnal decline in the photosynthetic capacity of uppermost leaves in an eggplant canopy grown in a horticultural greenhouse

Abstract: Highlights• Diurnal variations in eggplant leaf photosynthetic capacity were investigated • Concurrent measurements of gas exchange and chlorophyll fluorescence were conducted • Vcmax, Jmax, and TPU declined by approximately 15% toward the end of the day

Cited by 3 publications

References 42 publications

Exploring the potential of modifying leaf colour to increase rice productivity via improving photosynthesis and source-sink relationships

Exploring the potential of modifying leaf colour to increase rice productivity via improving photosynthesis and source-sink relationships

Climate change increases net CO 2 assimilation in the leaves of strawberry, but not yield

Triose phosphate utilization in leaves is modulated by whole-plant sink–source ratios and nitrogen budgets in rice

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Product

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Climate change increases net CO ₂ assimilation in the leaves of strawberry, but not yield