Global yield gaps can be reduced through breeding and improved agronomy. However, signs of yield plateaus from wheat and rice grown in intensively farmed systems indicate a need for new strategies if output is to continue to increase. Approaches to improve photosynthesis are suggested as a solution. Empirical evidence supporting this approach comes from small-scale free-CO air enrichment and transgenic studies. However, the likely achievable gains from improving photosynthesis are less understood. Models predict maximum increases in yield of 5.3-19.1% from genetic manipulation depending on crop, environment, and approach, but uncertainty remains in the presence of stress. This review seeks to provide context to the rationale for improving photosynthesis, highlight areas of uncertainty, and identify the steps required to create more accurate projections.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.copbio.2024.103144 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Ascorbic acid is involved in melatonin-induced salinity tolerance of maize ( L.) by regulating antioxidant and photosynthetic capacities.
Photosynthetica
January 2025
College of Agronomy, Specialty Corn Institute, Shenyang Agricultural University, 110866 Shenyang, Liaoning Province, China.
Melatonin (MT), an indole compound, can boost plant growth under abiotic stress conditions. This experiment aims to elucidate the synergistic effect of MT and ascorbic acid (AsA) in mitigating salinity stress by assessing the photosynthetic and antioxidant capacity of the maize inbred lines H123 and W961. The results indicated that exogenous MT and AsA significantly improved photosynthetic efficiency and biomass of maize under salinity stress.
View Article and Find Full Text PDFEffects of tillage methods on photosynthetic performance of different functional leaf groups of summer maize in coastal saline-alkali farmland.
Photosynthetica
January 2025
College of Agronomy, Shandong Agricultural University, Tai'an, 271018 Shandong, China.
This study aims to determine the changes in the photosynthetic performance of leaves at different leaf positions and their correlation and to screen out the basic tillage methods suitable for improving the yield. The decrease in soil salt content significantly improved the PSII performance index and quantum yield for electron transport of the bottom leaf group, synergistically enhanced the photosynthetic performance of summer maize leaves (especially the bottom leaf group), and enhanced the correlation between the bottom, middle (including the ear leaf), and upper leaf groups. Under subsoiling tillage conditions, the bottom leaves could produce more carbohydrates to meet the normal growth of the root system, promote the photosynthesis of the middle leaf group at the ear position, and increase the nutrient output of the upper leaf group to the female ear in the middle and later stages of maize aging.
View Article and Find Full Text PDFEngineering Cascade Bio-solar Cells Inspired by the Z-Scheme of Oxygenic Photosynthesis: Layered Chlorophyll and Bacterio-chlorophyll Derivatives.
ChemSusChem
January 2025
Kwansei Gakuin University: Kansei Gakuin Daigaku, Department of Applied Chemistry for Environment, 1 Gakuen-Uegahara, 669-1330, Sanda, JAPAN.
The natural Z-scheme of oxygenic photosynthesis efficiently drives electron transfer from photosystem II (PSII) to photosystem I (PSI) via an electron transport chain, despite the lower energy levels of PSII. Inspired by this sophisticated mechanism, we present a layered cascade bio-solar cell (CBSC) that emulates the Z-scheme. In this design, chlorophyll derivatives (Chl) act as PSI analogs, while bacteriochlorophyll derivatives (BChl) serve as PSII analogs in the active layer.
View Article and Find Full Text PDFMultielement-Doped Tungstic Acids via Submerged Photosynthesis for Enhanced All-Solar Photoelectrochemical Responses.
ACS Appl Mater Interfaces
January 2025
Center for Advanced Research of Energy and Materials, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo 060-8628, Japan.
Bifunctional electrode materials that can convert solar energy into electricity and store chemical energy are a functional strategy for resolving the instability of solar energy. However, most commonly used transition metal oxide semiconductor materials lack broadband wavelength absorption responses, resulting in incomplete solar energy utilization. Herein, multielement-doped MoWO·0.
View Article and Find Full Text PDF'Domesticability': were some species predisposed for domestication?
Trends Ecol Evol
January 2025
Biological Sciences, University of Southampton, Life Sciences Building 85, Highfield Campus, Southampton, SO17 1BJ, UK. Electronic address:
Crop domestication arises from a coevolutionary process between plants and humans, resulting in predictable and improved resources for humans. Of the thousands of edible species, many were collected or cultivated for food, but only a few became domesticated and even fewer supply the bulk of the plant-based calories consumed by humans. Why so few species became fully domesticated is not understood.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!