Article
Biology
Florence R. Danila, Vivek Thakur, Jolly Chatterjee, Soumi Bala, Robert A. Coe, Kelvin Acebron, Robert T. Furbank, Susanne von Caemmerer, William Paul Quick
Summary: C-4 photosynthesis is improved by altering the ABCG transporter gene associated with suberin synthesis, demonstrating that a functional suberin lamellae is crucial for efficient photosynthesis in plants like S. viridis.
COMMUNICATIONS BIOLOGY
(2021)
Article
Plant Sciences
Yi Ning Xu, Xuming Wang, Yan Ran Sun, Hai Tao Liu, Lei Li, Rudi Schaufele, Hans Schnyder, Xiao Ying Gong
Summary: This study investigates the effect of vapour pressure deficit (VPD) on the CO2-concentrating mechanism and bundle-sheath leakiness of low-leakiness C4 species. The results show that high VPD leads to an increase in photosynthetic 13C discrimination and bundle-sheath leakiness, which are positively correlated with leaf nitrogen content and intrinsic water-use efficiency.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2023)
Article
Plant Sciences
Qingchen Zhang, Yan Li, Weigang Xu, Yu Zhang, Xueli Qi, Yuhui Fang, Chaojun Peng
Summary: This study found that various combinations of maize genes had significant effects on the photosynthesis of Arabidopsis, with PCKM showing the best performance in improving photosynthetic rate and plant dry weight.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
Yuanfen Gao, Xuewu He, Huayang Lv, Hanmei Liu, Yangping Li, Yufeng Hu, Yinghong Liu, Yubi Huang, Junjie Zhang
Summary: This study found that brassinosteroids can improve photosynthesis efficiency in maize by regulating transcription factors ZmNF-YC2 and ZmbHLH157, thus increasing yield.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Plant Sciences
Jinyao Yan, Xiaolei Ye, Yi Song, Tao Ren, Chongming Wang, Xiaokun Li, Rihuan Cong, Zhifeng Lu, Jianwei Lu
Summary: This study found that phosphorus (P) and potassium (K) have synergistic effects on crop photosynthesis and productivity. The addition of P gradually removed the limiting factor of P availability and improved photosynthesis. Meanwhile, the addition of K enhances the overall uptake of P and promotes plant growth, mitigating P restrictions on photosynthesis by prioritizing investment in metabolic P fractions.
Review
Plant Sciences
Cristina R. G. Sales, Yu Wang, Jochem B. Evers, Johannes Kromdijk
Summary: This article outlines potential strategies for improving C-4 photosynthesis to increase crop yields, highlighting major bottlenecks limiting the C-4 NADP-malic enzyme pathway under different conditions. It emphasizes the need for further experimental verification of potential limiting factors under drought, heat, and chilling stress conditions.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Article
Plant Sciences
Yu Wang, Samantha S. Stutz, Carl J. Bernacchi, Ryan A. Boyd, Donald R. Ort, Stephen P. Long
Summary: A study using a dynamic model of NADP-malic enzyme C-4 photosynthesis found that induction of the C-4 pathway was faster than that of the C-3 pathway during transitions from dark or shade to high light, resulting in a transient increase in bundle-sheath CO2 leakiness. The study also developed a new method to track CO2 leakiness under nonsteady-state conditions. The results showed that CO2 leakiness was significantly higher in the early stages of induction compared to steady-state conditions.
Article
Plant Sciences
Yukimi Y. Taniguchi, Udo Gowik, Yuto Kinoshita, Risa Kishizaki, Naoaki Ono, Akiho Yokota, Peter Westhoff, Yuri N. Munekage
Summary: C-4 plants are believed to have evolved from C-3 plants through various intermediate stages, involving changes in gene expression and cell-specific control. Research results indicate that during the establishment of C-4 photosynthesis, gene expression increases gradually and cell-specific control strengthens.
Article
Plant Sciences
Elena Shuyskaya, Zulfira Rakhmankulova, Maria Prokofieva, Luizat Saidova, Kristina Toderich, Pavel Voronin
Summary: This study investigates the effects of different levels of salt stress on the growth, photosynthesis, and ion accumulation in a halophyte plant. The results show that low salinity leads to decreased biomass and photosynthesis intensity, while moderate salinity results in reduced electron transport and increased ion accumulation. These findings provide insights into the adaptive mechanisms of plants under different salt levels.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Ecology
Amanda K. Garcia, Colleen M. Cavanaugh, Betul Kacar
Summary: The oldest and most wide-ranging signal of biological activity on Earth is the carbon isotope composition of organic materials preserved in rocks. Despite billions of years of changes on Earth, the organic carbon isotopic composition record from the global marine biosphere remains relatively unchanged.
Article
Plant Sciences
David B. Medeiros, Hirofumi Ishihara, Manuela Guenther, Laise Rosado de Souza, Alisdair R. Fernie, Mark Stitt, Stephanie Arrivault
Summary: C-4 photosynthesis is less efficient in low irradiance due to factors such as excessive enzyme flux, decarboxylation restriction, impaired CO2 concentration mechanism, and increased photorespiration.
Article
Plant Sciences
Ivan G. Tarakanov, Daria A. Tovstyko, Maxim P. Lomakin, Alexander S. Shmakov, Nikolay N. Sleptsov, Alexander N. Shmarev, Vladimir A. Litvinskiy, Alexander A. Ivlev
Summary: The optimization of LED lighting protocols for indoor plant growing systems requires both basic and applied research. This study investigated the plant responses to different wavelengths of light, showing that red light promoted photorespiration while blue light accelerated carboxylation. Observations of light environments missing specific spectral regions supported these findings.
Article
Plant Sciences
Victoria C. Clarke, Annamaria De Rosa, Baxter Massey, Aleu Mani George, John R. Evans, Susanne von Caemmerer, Michael Groszmann
Summary: Increasing mesophyll conductance can improve the efficiency of C-3 photosynthesis, but attempts to enhance it through modified aquaporin activity were unsuccessful.
JOURNAL OF EXPERIMENTAL BOTANY
(2022)
Article
Plant Sciences
Z. F. Rakhmankulova, E. V. Shuyskaya, M. Yu. Prokofieva
Summary: Research on the carbon-concentrating mechanism (CCM) in plants with intermediate C-3-C-4 (C-2) photosynthesis type and resistance to arid climate is important due to global climate changes. This study investigated two populations of C-3-C(4)Sedobassia sedoides under osmotic stress and found differences in photosynthesis type and stress tolerance mechanisms between the populations.
RUSSIAN JOURNAL OF PLANT PHYSIOLOGY
(2023)
Article
Agronomy
Andreu Mairata, Ignacio Tortosa, Cyril Douthe, Jose Mariano Escalona, Alicia Pou, Hipolito Medrano
Summary: In this study, different parameters were used to evaluate the water use efficiency (WUE) in grapevine genotypes, with carbon isotopic discrimination (δC-13) showing potential as a better indicator due to its integration over the synthesis time of the sample analyzed.
Article
Plant Sciences
Walter Krystler Israel, Alexander Watson-Lazowski, Zhong-Hua Chen, Oula Ghannoum
Summary: The photosynthetic type of grasses affects their intrinsic water use efficiency. C-4 grasses have higher intrinsic water use efficiency and CO2 assimilation rates, and lower stomatal conductance and operational stomatal aperture. Stomatal size and density do not vary according to the photosynthetic type. Overall, intrinsic water use efficiency and stomatal conductance depend most on operational stomatal aperture and density of open stomata.
JOURNAL OF EXPERIMENTAL BOTANY
(2022)
Article
Plant Sciences
Ling Pan, Barbara George-Jaeggli, Andrew Borrell, David Jordan, Fiona Koller, Yazen Al-Salman, Oula Ghannoum, Francisco J. Cano
Summary: In C-4 plants like sorghum, leaf width is negatively correlated with intrinsic water-use efficiency and positively correlated with stomatal conductance. Results highlight the important role of leaf width in shaping internal water-use efficiency through coordination of vein and stomatal traits, affecting stomatal aperture.
PLANT CELL AND ENVIRONMENT
(2022)
Article
Plant Sciences
Xin He, Sachin G. Chavan, Ziad Hamoui, Chelsea Maier, Oula Ghannoum, Zhong-Hua Chen, David T. Tissue, Christopher Cazzonelli
Summary: Smart Glass Film (SGF) is a covering material that allows light transmission and blocks solar energy, providing an energy-efficient solution for greenhouse cultivation. The quality and shelf life of capsicum fruits grown under SGF are affected, but fruit ripening and marketable quality remain unchanged.
Article
Thermodynamics
Terry Lin, Mark Goldsworthy, Sachin Chavan, Weiguang Liang, Chelsea Maier, Oula Ghannoum, Christopher I. Cazzonelli, David T. Tissue, Yi-Chen Lan, Subbu Sethuvenkatraman, Han Lin, Baohua Jia, Zhong-Hua Chen
Summary: Smart Glass (SG), a new energy-saving technology for glasshouses, has the potential to reduce cooling energy use and fertigation demand in warm climates. However, it also reduces fruit yield. Re-engineering the spectral characteristics of SG may improve crop yield while maintaining energy and resource savings.
Article
Biology
Jeffrey C. Berry, Mingsheng Qi, Balasaheb Sonawane, Amy Sheflin, Asaph Cousins, Jessica Prenni, Daniel P. Schachtman, Peng Liu, Rebecca S. Bart
Summary: This study explores the challenge posed by environmental variability in field studies and discusses the use of replication and controlling for spatially distributed soil properties to improve the detection and resolution of experimental effects on plant traits and microbial communities.
Review
Plant Sciences
Murray R. Badger, Robert E. Sharwood
Summary: This article discusses the challenges and solutions in the evolution of Rubisco as a CO2-fixing enzyme, highlighting the importance of its catalytic mechanism and kinetic properties. Despite the incomplete understanding of Rubisco, it and its partners have achieved remarkable success in high O-2, low CO2, and variable climatic conditions.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Plant Sciences
Julius Ver Sagun, Wah Soon Chow, Oula Ghannoum
Summary: The quantum yield of photosynthesis depends on the efficiency of light absorption, electron transport, and carbon metabolism. C-3 plants usually have lower quantum yield compared to C-4 plants at warm temperatures, and there are differences among the various C-4 subtypes. This study investigated how six representative grass species with different photosynthesis types acclimated to shade conditions. The results showed that shade significantly reduced light absorption, electron transport, and quantum yield in most species, particularly in C-4 plants.-
PHYSIOLOGIA PLANTARUM
(2022)
Article
Plant Sciences
Urs F. Benning, Lily Chen, Alexander Watson-Lazowski, Clemence Henry, Robert T. Furbank, Oula Ghannoum
Summary: This study compared the expression of sugar sensor genes in C-3 and C-4 grasses, focusing on source tissues of C-4 grasses. The results showed that there is no significant difference in how sugars are sensed between C-4 and C-3 grasses, but there are some contrasts between mesophyll and bundle sheath cells.
Article
Plant Sciences
Moges A. Retta, Xinyou Yin, Quang Tri Ho, Rodrigo Watte, Herman N. C. Berghuijs, Pieter Verboven, Wouter Saeys, Francisco Javier Cano, Oula Ghannoum, Paul C. Struik, Bart M. Nicolai
Summary: A novel 3D reaction-diffusion model revealed that movement of mesophyll chloroplasts in C-4 plants increased photosynthesis rate but also increased leakiness. A 3D leaf model was developed to investigate how chloroplast movement affects the CO2 concentrating mechanism. Results showed that movement of chloroplasts towards bundle sheath cells increased light absorption, while avoidance movement decreased it. ATP, NADPH production, and net photosynthetic rate increased for aggregative movement and decreased for avoidance movement. Leakiness increased in both scenarios due to energy imbalance.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Plant Sciences
Lily Chen, Diep R. Ganguly, Sarah H. Shafik, Florence Danila, Christopher P. L. Grof, Robert E. Sharwood, Robert T. Furbank
Summary: The localization of SWEET4 protein in the seed and stem of Setaria viridis suggests its involvement in supplying sugars to carbon sink tissues. SWEET proteins play a crucial role in apoplastic sugar transport during phloem unloading and the post-phloem pathway in developing seeds. The study provides evidence for the role of SWEET proteins in the apoplastic transport pathway and proposes a pathway for post-phloem sugar transport into the seed.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Plant Sciences
Yazen Al-Salman, Oula Ghannoum, Francisco Javier Cano
Summary: Elevated CO2 concentration and water stress decrease stomatal conductance, affecting leaf thermoregulation. It was found that elevated CO2 concentration enhanced photosynthesis and biomass accumulation, but reduced photosynthesis under water and heat stress. The response of sorghum leaves to future climate conditions depends on the trade-off between low stomatal conductance for water use efficiency and drought tolerance, and high stomatal conductance for improved thermoregulation and heat tolerance.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Plant Sciences
Yazen Al-Salman, Francisco J. Cano, Ling Pan, Fiona Koller, Juan Pineiro, David Jordan, Oula Ghannoum
Summary: Sustaining crop productivity and resilience in water-limited environments and under rising temperatures are worldwide concerns. This study investigated the leaf anatomical traits that contribute to intrinsic water use efficiency (iWUE) through its link with leaf width (LW), which is a valuable trait in plant breeding. The research involved growing ten sorghum lines with varying LW under different temperatures to analyze the gas exchange rates and leaf anatomy. The findings showed that narrow leaves had lower stomatal conductance (g(s)) and higher iWUE, as well as smaller intercellular airspaces, stomatal size, hydraulic pathway, and leaf mass per area. Structural modeling revealed a developmental association among leaf anatomical traits that influenced g(s) variation in sorghum. The study emphasized the impact of leaf width on both gas exchange rates and leaf anatomy, highlighting the importance of considering this trait in crop production.
PLANT CELL AND ENVIRONMENT
(2023)
Article
Plant Sciences
Yazen Al-Salman, Oula Ghannoum, Francisco Javier Cano
Summary: Most studies assume midday gas exchange measurements can reflect the leaf's daytime performance, but the fluctuation of stomatal conductance and photosynthesis due to diurnal rhythms can affect water use efficiency. This study on six Sorghum lines found that the highest photosynthesis and stomatal conductance and lowest water use efficiency were observed at midday. Water use efficiency correlated positively with morning and midday values and negatively with the time taken for stomata to close after transition to low light intensity.
Article
Agronomy
Anjan Das, A. D. Munshi, Dhandapani Raju, Sudhir Kumar, Dharmendara Singh, Akshay Talukdar, Dhananjay Hongal, Mir Asif Iquebal, Sandeep Kumar, R. C. Bhattacharya, Pragya Ranjan, Oula Ghannoum, T. K. Behera, S. S. Dey
Summary: By screening and evaluating a large set of Indian-origin cucumber germplasms, eight drought-tolerant genotypes were identified, showing higher drought tolerance and yield stability under field conditions. These research findings provide important references for further studying the drought tolerance mechanisms of cucumber and developing drought-resistant varieties.
GENETIC RESOURCES AND CROP EVOLUTION
(2023)
Article
Plant Sciences
Varsha S. Pathare, Rahele Panahabadi, Balasaheb Sonawane, Anthony Jude Apalla, Nuria Koteyeva, Laura E. Bartley, Asaph B. Cousins
Summary: Changes in hydroxycinnamic acid content can decrease cell wall thickness, increase mesophyll conductance and photosynthesis in C-3 cereals. However, increases in stomatal conductance negate the increased photosynthesis, resulting in no change in intrinsic water use efficiency (WUE). Alteration of hydroxycinnamic acid content can also improve canopy-level WUE and aboveground biomass in rice plants under low water levels.