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Doddrell NH, Lawson T, Raines CA, Wagstaff C, Simkin AJ. Feeding the world: impacts of elevated [CO 2] on nutrient content of greenhouse grown fruit crops and options for future yield gains. HORTICULTURE RESEARCH 2023; 10:uhad026. [PMID: 37090096 PMCID: PMC10116952 DOI: 10.1093/hr/uhad026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 02/13/2023] [Indexed: 05/03/2023]
Abstract
Several long-term studies have provided strong support demonstrating that growing crops under elevated [CO2] can increase photosynthesis and result in an increase in yield, flavour and nutritional content (including but not limited to Vitamins C, E and pro-vitamin A). In the case of tomato, increases in yield by as much as 80% are observed when plants are cultivated at 1000 ppm [CO2], which is consistent with current commercial greenhouse production methods in the tomato fruit industry. These results provide a clear demonstration of the potential for elevating [CO2] for improving yield and quality in greenhouse crops. The major focus of this review is to bring together 50 years of observations evaluating the impact of elevated [CO2] on fruit yield and fruit nutritional quality. In the final section, we consider the need to engineer improvements to photosynthesis and nitrogen assimilation to allow plants to take greater advantage of elevated CO2 growth conditions.
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Affiliation(s)
- Nicholas H Doddrell
- NIAB, New Road, East Malling, Kent, ME19 6BJ UK
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights, Reading, Berkshire RG6 6DZ, UK
| | - Tracy Lawson
- School of Life Sciences, University of Essex, Colchester CO4 4SQ, UK
| | | | - Carol Wagstaff
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights, Reading, Berkshire RG6 6DZ, UK
| | - Andrew J Simkin
- NIAB, New Road, East Malling, Kent, ME19 6BJ UK
- School of Biosciences, University of Kent, Canterbury, United Kingdom CT2 7NJ, UK
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Liu P, Ning F, Li H, Zhang Y, Zhang Q, Wang R, Wang X, Chen X, Li J. Adaptive nitrogen inputs sustain water-nitrogen use and improve maize productivity with varied precipitation conditions on a semi-arid agroecosystem. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:2262-2272. [PMID: 36694202 DOI: 10.1002/jsfa.12468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/25/2023] [Indexed: 06/17/2023]
Abstract
BACKGROUND Maize productivity in semi-arid regions is increasingly at risk because of the sparse and uneven precipitation, and it is also restricted by excessive or insufficient fertilization management strategies. A 4-year (2016-2019) field experiment was therefore conducted to show the effects of fertilizer with five nitrogen levels (0, 75-90, 150-180, 270, and 360 kg ha-1 , represented as N0 , N75-90 , N150-180 , N270 , N360 , respectively) under two variable precipitation patterns (rainy at pre-anthesis in 2016 and 2018 versus dry at pre-anthesis in 2017 and 2019) on soil water storage (SWS), water use efficiency (WUE), nitrogen use efficiency (NUE), and maize yield in the Loess Plateau. RESULTS Nitrogen inputs increased the amount of above-ground dry matter and the WUE for dry matter (WUEd). Dry years at pre-anthesis significantly reduced dry matter accumulation and kernel number per plant. However, soil water storage before sowing (SWSs) decreased from 440 mm in 2016 to 384 mm in 2019, and the increase in fertilization resulted in the water imbalance. Both the maximum grain yield and WUE for grain yield were found in N270 under rainy years at pre-anthesis, whereas in N150-180 under dry years at pre-anthesis. The average nitrogen recovery efficiency (NRE), nitrogen agronomy efficiency (NAE) and nitrogen partial factor productivity (NPFP) decreased with increases in N application, compared with N360 , the NRE,NAE and NPFP of N150-180 increased by 63.5%, 189.2% and 135.5%, respectively. CONCLUSIONS Reducing basal N fertilizers could enhance maize yield and maintain moderate water and nitrogen productivity in years with less rainfall. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Pengzhao Liu
- College of Agronomy, Northwest A&F University, Yangling, China
- Key Laboratory of Crop Physiology and Tillage Science in Northwestern Loess Plateau, Ministry of Agriculture, Yangling, China
| | - Fang Ning
- Taiyuan Agricultural Technology Extension and Service Center, Taiyuan, China
| | - Haoyu Li
- College of Agronomy, Northwest A&F University, Yangling, China
- Key Laboratory of Crop Physiology and Tillage Science in Northwestern Loess Plateau, Ministry of Agriculture, Yangling, China
| | - Yuanhong Zhang
- College of Agronomy, Northwest A&F University, Yangling, China
- Key Laboratory of Crop Physiology and Tillage Science in Northwestern Loess Plateau, Ministry of Agriculture, Yangling, China
| | - Qi Zhang
- College of Agronomy, Northwest A&F University, Yangling, China
- Key Laboratory of Crop Physiology and Tillage Science in Northwestern Loess Plateau, Ministry of Agriculture, Yangling, China
| | - Rui Wang
- College of Agronomy, Northwest A&F University, Yangling, China
- Key Laboratory of Crop Physiology and Tillage Science in Northwestern Loess Plateau, Ministry of Agriculture, Yangling, China
| | - Xiaoli Wang
- College of Agronomy, Northwest A&F University, Yangling, China
- Key Laboratory of Crop Physiology and Tillage Science in Northwestern Loess Plateau, Ministry of Agriculture, Yangling, China
| | - Xiaoli Chen
- College of Agronomy, Northwest A&F University, Yangling, China
- Key Laboratory of Crop Physiology and Tillage Science in Northwestern Loess Plateau, Ministry of Agriculture, Yangling, China
| | - Jun Li
- College of Agronomy, Northwest A&F University, Yangling, China
- Key Laboratory of Crop Physiology and Tillage Science in Northwestern Loess Plateau, Ministry of Agriculture, Yangling, China
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An YQ, Qin ZT, Li DD, Zhao RQ, Bi BS, Wang DW, Ma DJ, Xi Z. The combined formulation of brassinolide and pyraclostrobin increases biomass and seed yield by improving photosynthetic capacity in Arabidopsis thaliana. FRONTIERS IN PLANT SCIENCE 2023; 14:1138563. [PMID: 37063198 PMCID: PMC10090558 DOI: 10.3389/fpls.2023.1138563] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 03/13/2023] [Indexed: 06/19/2023]
Abstract
In the context of global food crisis, applying the phytohormone-brassinosteroids (BRs) in combination with the fungicide-pyraclostrobin (Pyr) was beneficial for plant quality and productivity in several field trials. However, in addition to the benefits of disease control due to the innate fungicidal activity of Pyr, it remains to be understood whether the coapplication of BL+ Pyr exerts additional growth-promoting effects. For this purpose, the effects of BL treatment, Pyr treatment, and BL+ Pyr treatment in Arabidopsis thaliana were compared. The results showed that the yield increased at a rate of 25.6% in the BL+Pyr group and 9.7% in the BL group, but no significant change was observed in the Pyr group. Furthermore, the BL+Pyr treatment increased the fresh weight of both the leaves and the inflorescences. In contrast, the Pyr and BL treatments only increased the fresh weight of leaves and inflorescences, respectively. Additionally, the BL + Pyr treatment increased the Pn, Gs, Tr, Vc, max, Jmax, VTPU, ETR, Fv'/Fm', ΦPSII, Rd, AYE and Rubisco enzyme activity by 26%, 38%, 40%, 16%, 19%, 15%, 9%, 10%, 17%, 179%, 18% and 32%, respectively. While, these paraments did not change significantly by the BL or Pyr treatments. Treatment with BL + Pyr and Pyr, rather than BL, improved the chlorophyll a and chlorophyll b contents by upregulating genes related to chlorophyll biosynthesis and downregulating genes related to chlorophyll degradation. Additionally, according to transcriptomic and metabolomic analysis, the BL+ Pyr treatment outperformed the individual BL or Pyr treatments in activating the transcription of genes involved in photosynthesis and increasing sugar accumulation. Our results first validated that the combined usage of BL and Pyr exerted striking synergistic effects on enhancing plant biomass and yield by increasing photosynthetic efficiency. These results might provide new understanding for the agricultural effects by the co-application of BL and Pyr, and it might stimulate the efforts to develop new environment-friendly replacement for Pyr to minimize the ecotoxicology of Pyr.
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Affiliation(s)
- Ya-Qi An
- *Correspondence: Ya-Qi An, ; Zhen Xi,
| | | | | | | | | | | | | | - Zhen Xi
- *Correspondence: Ya-Qi An, ; Zhen Xi,
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Bäurle I, Laplaze L, Martin A. Preparing for an uncertain future: molecular responses of plants facing climate change. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:1297-1302. [PMID: 36516413 PMCID: PMC10010605 DOI: 10.1093/jxb/erac493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 12/12/2022] [Indexed: 05/12/2023]
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Wang Q, Yang S, Fan M, Feng P, Zhu L, Chen H, Wang J. A natural variation in the promoter of GRA117 affects carbon assimilation in rice. PLANTA 2023; 257:77. [PMID: 36894728 DOI: 10.1007/s00425-023-04109-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 02/27/2023] [Indexed: 06/18/2023]
Abstract
GRA117 is crucial in the process of carbon assimilation in rice as it regulates the development of chloroplasts, which in turn facilitates the Calvin-Benson cycle. Carbon assimilation is a critical process for plant growth, and despite numerous relevant studies, there are still unknown constraints. In this study, we isolated a rice mutant, gra117, which exhibited seedling albinism, delayed chloroplast development, decreased chlorophyll content, reduced yield, and seedling stress susceptibility, as compared to WT. Our further investigations revealed that gra117 had a significantly lower net photosynthetic carbon assimilation rate, as well as reduced levels of Rubisco enzyme activity, RUBP, PGA, carbohydrate, protein content, and dry matter accumulation. These findings provide evidence for decreased carbon assimilation in gra117. By mapping cloning, we discovered a 665 bp insertion in the GRA117 promoter region that decreases GRA117 transcriptional activity and causes the gra117 phenotype. GRA117 encodes PfkB-type fructokinase-like 2, which is subcellularly localized in chloroplasts and is widely expressed in various rice tissues, particularly at high levels in leaf tissues. GRA117 transcription is regulated by the core region 1029 bp before the start codon. Our quantitative RT-PCR and Western blot assays showed that GRA117 promotes the expression and translation of photosynthetic genes. RNA-Seq analysis revealed that GRA117 plays a significant role in photosynthetic carbon fixation, carbon metabolism, and chloroplast ribosome-related pathways. Our study supports that GRA117 promotes the Calvin-Benson cycle by regulating chloroplast development, ultimately leading to enhanced carbon assimilation in rice.
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Affiliation(s)
- Qi Wang
- Key Laboratory of Rice Biology and Genetic Breeding in Northeast China (Ministry of Agriculture and Rural Areas), Rice Research Institute of Shenyang Agricultural University, Shenyang, 110866, People's Republic of China
| | - Shenglong Yang
- Key Laboratory of Rice Biology and Genetic Breeding in Northeast China (Ministry of Agriculture and Rural Areas), Rice Research Institute of Shenyang Agricultural University, Shenyang, 110866, People's Republic of China
| | - Mingqian Fan
- Key Laboratory of Rice Biology and Genetic Breeding in Northeast China (Ministry of Agriculture and Rural Areas), Rice Research Institute of Shenyang Agricultural University, Shenyang, 110866, People's Republic of China
| | - Pulin Feng
- Key Laboratory of Rice Biology and Genetic Breeding in Northeast China (Ministry of Agriculture and Rural Areas), Rice Research Institute of Shenyang Agricultural University, Shenyang, 110866, People's Republic of China
| | - Lin Zhu
- Key Laboratory of Rice Biology and Genetic Breeding in Northeast China (Ministry of Agriculture and Rural Areas), Rice Research Institute of Shenyang Agricultural University, Shenyang, 110866, People's Republic of China
| | - Hongwei Chen
- Key Laboratory of Rice Biology and Genetic Breeding in Northeast China (Ministry of Agriculture and Rural Areas), Rice Research Institute of Shenyang Agricultural University, Shenyang, 110866, People's Republic of China
| | - Jiayu Wang
- Key Laboratory of Rice Biology and Genetic Breeding in Northeast China (Ministry of Agriculture and Rural Areas), Rice Research Institute of Shenyang Agricultural University, Shenyang, 110866, People's Republic of China.
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Wang XQ, Zeng ZL, Shi ZM, Wang JH, Huang W. Variation in Photosynthetic Efficiency under Fluctuating Light between Rose Cultivars and its Potential for Improving Dynamic Photosynthesis. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12051186. [PMID: 36904047 PMCID: PMC10005413 DOI: 10.3390/plants12051186] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/09/2023] [Accepted: 02/21/2023] [Indexed: 06/09/2023]
Abstract
Photosynthetic efficiency under both steady-state and fluctuating light can significantly affect plant growth under naturally fluctuating light conditions. However, the difference in photosynthetic performance between different rose genotypes is little known. This study compared the photosynthetic performance under steady-state and fluctuating light in two modern rose cultivars (Rose hybrida), "Orange Reeva" and "Gelato", and an old Chinese rose plant Rosa chinensis cultivar, "Slater's crimson China". The light and CO2 response curves indicated that they showed similar photosynthetic capacity under steady state. The light-saturated steady-state photosynthesis in these three rose genotypes was mainly limited by biochemistry (60%) rather than diffusional conductance. Under fluctuating light conditions (alternated between 100 and 1500 μmol photons m-2 m-1 every 5 min), stomatal conductance gradually decreased in these three rose genotypes, while mesophyll conductance (gm) was maintained stable in Orange Reeva and Gelato but decreased by 23% in R. chinensis, resulting in a stronger loss of CO2 assimilation under high-light phases in R. chinensis (25%) than in Orange Reeva and Gelato (13%). As a result, the variation in photosynthetic efficiency under fluctuating light among rose cultivars was tightly related to gm. These results highlight the importance of gm in dynamic photosynthesis and provide new traits for improving photosynthetic efficiency in rose cultivars.
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Affiliation(s)
- Xiao-Qian Wang
- School of Life Sciences, Northwest University, Xi’an 710069, China
- Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Zhi-Lan Zeng
- Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zi-Ming Shi
- Flower Research Institute of Yunnan Academy of Agricultural Sciences, Kunming 650205, China
| | - Ji-Hua Wang
- Flower Research Institute of Yunnan Academy of Agricultural Sciences, Kunming 650205, China
| | - Wei Huang
- Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
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Biofortification of mungbean (Vigna radiata L. (Wilczek)) with boron, zinc and iron alters its grain yield and nutrition. Sci Rep 2023; 13:3506. [PMID: 36864063 PMCID: PMC9981609 DOI: 10.1038/s41598-023-30539-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 02/24/2023] [Indexed: 03/04/2023] Open
Abstract
Mungbean [Vigna radiata L. (Wilczek)] is considered as an extremely nutritious crop possessing a high level of micronutrients, but their low bioavailability in the crop leads to micronutrient malnutrition in humans. Therefore, the present study was conducted to investigate the potential of nutrients viz. boron (B), zinc (Zn) and iron (Fe) biofortification on productivity, nutrient concentration and uptake as well as the economics of mungbean cultivation. In the experiment, the various combinations of RDF with ZnSO4.7H2O (0.5%), FeSO4.7H2O (0.5%) and borax (0.1%) were applied to mungbean variety ML 2056. The combined foliar application of Zn, Fe and B was highly efficient in increasing the yield of grain as well as straw in mungbean exhibiting maximum values i.e. 944 kg ha-1 and 6133 kg ha-1, respectively. Similar results for B, Zn and Fe concentration in grain (27.3 mg kg-1, 35.7 mg kg-1 and 187.1 mg kg-1, respectively) and straw (21.1 mg kg-1, 18.6 mg kg-1 and 376.1 mg kg-1, respectively) of mungbean were observed. Also, uptake of Zn and Fe by grain (31.3 g ha-1 and 164.4 g ha-1, respectively), as well as straw (113.7 g ha-1 and 2295.0 g ha-1, respectively), was maximum for the above treatment. Whereas, the B uptake was found to enhance significantly through the combined application of B, Zn and Fe, where the values 24.0 g ha-1 and 128.7 g ha-1 corresponded to grain and straw, respectively. Thus, combined use of ZnSO4.7H2O (0.5%) + FeSO4.7H2O (0.5%) and borax (0.1%) significantly improved the yield outcomes, the concentration of B, Zn and Fe, uptake and economic returns of mungbean cultivation to alleviate the B, Zn and Fe deficiency.
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Zhao L, Tang Q, Song Z, Yin Y, Wang G, Li Y. Increasing the yield of drip-irrigated rice by improving photosynthetic performance and enhancing nitrogen metabolism through optimizing water and nitrogen management. FRONTIERS IN PLANT SCIENCE 2023; 14:1075625. [PMID: 36909451 PMCID: PMC9997648 DOI: 10.3389/fpls.2023.1075625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
Drip irrigation under plastic film mulching is an important technique to achieve water-conserving and high-efficiency rice (Oryza sativa L.) production in arid areas, but the grain yield of drip-irrigated rice is much lower than the expected yield (10.9-12.05 t·hm-2) in practical production applications. Therefore, we hope to further understand the photosynthetic physiological mechanism of drip-irrigated rice yield formation by optimizing water and nitrogen management during the growth period and provide a scientific reference for improving yield and nitrogen use efficiency (NUE) of drip-irrigated rice in arid areas. In 2020 and 2021, T-43 (a drought-resistant; V1) and Liangxiang-3 (a drought-sensitive cultivar; V2) were cultivated under two water treatments (W1: limited drip irrigation, 10200 m3·hm-2; W2: deficit drip irrigation, 8670 m3·hm-2) and three nitrogen fertilization modes with different ratios of seedling fertilizer:tillering fertilizer:panicle fertilizer:grain fertilizer (N1, 30%:50%:13%:7%; N2, 20%:40%:30%:10%; and N3, 10%:30%:40%:20%). The photosynthetic characteristics, nitrogen metabolism, yield, and NUE were analysed. The results showed that compared with other treatments, the W1N2 resulted in 153.4-930.3% higher glutamate dehydrogenase (GDH) contents and 19.2-49.7% higher net photosynthetic rates (P n) in the leaves of the two cultivars at 20 days after heading, as well as higher yields and NUE. The two cultivars showed no significant difference in the physiological changes at the panicle initiation stage, but the P n, abscisic acid (ABA), indole acetic acid (IAA), gibberellic acid (GA3), and zeatin riboside (ZR) levels of V1 were higher than those of V2 by 53.1, 25.1, 21.1, 46.3 and 36.8%, respectively, at 20 days after heading. Hence, V1 had a higher yield and NUE than V2. Principal component analysis revealed that P n and GDH were the most important physiological factors affecting rice yield performance. In summary, the W1N2 treatment simultaneously improved the yield and NUE of the drought-resistant rice cultivar (T-43) by enhancing the photosynthetic characteristics and nitrogen transport capacity and coordinating the balance of endogenous hormones (ABA, IAA, GA3, and ZR) in the leaves.
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Affiliation(s)
- Lei Zhao
- Key Laboratory of Oasis Eco-Agriculture, Xinjiang Production and Construction Group, Shihezi University, Shihezi, Xinjiang, China
| | - Qingyun Tang
- Key Laboratory of Oasis Eco-Agriculture, Xinjiang Production and Construction Group, Shihezi University, Shihezi, Xinjiang, China
| | - Zhiwen Song
- Key Laboratory of Oasis Eco-Agriculture, Xinjiang Production and Construction Group, Shihezi University, Shihezi, Xinjiang, China
| | - Yongan Yin
- Xinjiang Tianye Group Ltd., Shihezi, Xinjiang, China
| | - Guodong Wang
- Institute of Farmland Water Conservancy and Soil-Fertilizer, Xinjiang Academy of Agricultural Reclamation Science or Key Laboratory of Northwest Oasis Water-Saving Agriculture, Ministry of Agriculture and Rural Affairs, Shihezi, Xinjiang, China
| | - Yuxiang Li
- Key Laboratory of Oasis Eco-Agriculture, Xinjiang Production and Construction Group, Shihezi University, Shihezi, Xinjiang, China
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Sood S, Joshi DC, Rajashekara H, Tiwari A, Bhinda MS, Kumar A, Kant L, Pattanayak A. Deciphering the genomic regions governing major agronomic traits and blast resistance using genome wide association mapping in finger millet. Gene 2023; 854:147115. [PMID: 36526121 DOI: 10.1016/j.gene.2022.147115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 11/30/2022] [Accepted: 12/09/2022] [Indexed: 12/15/2022]
Abstract
Finger millet (Eleusine coracana L.) is climate resilient minor millet of Asia and Africa with wide adaptation and unparallel nutritional profile. To date, genomic resources available in finger millet are scanty and genetic control of agronomic traits remains elusive. Here, a collection of eco-geographically diverse 186 genotypes was quantified for variation in 13 agronomic traits and reaction to blast to identify marker-trait associations (MTAs) using genotyping-by-sequencing (GBS) and genome-wide association study (GWAS). GBS generated 2977 high quality single nucleotide polymorphism (SNPs) markers and identified three subpopulations with varying admixture levels. General linear and mixed model approaches of GWAS to correct for population structure and genetic relatedness identified 132 common MTAs for agronomic traits across the years. The phenotypic variance explained by the makers varied from 4.8% (TP692389-flag leaf width) to 20% (TP714446-green fodder weight). Of these, 26 MTAs showed homology with candidate genes having role in plant growth, development and photosynthesis in the genomes of foxtail millet, rice, maize, wheat and barley. We also found 4 common MTAs for neck blast resistance, which explained 5.9-15.1% phenotypic variance. Three MTAs for neck blast resistance showed orthologues in related genera having putative functions in pathogen defense in plants. The results of this work lay a foundation for understanding the genetic architecture of agronomic traits and blast resistance in finger millet and provide a framework for genomics assisted breeding.
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Affiliation(s)
- Salej Sood
- ICAR- Central Potato Research Institute, Shimla, Himachal Pradesh, India.
| | - D C Joshi
- ICAR-Vivekananda Institute of Hill Agriculture, Almora, Uttarakhand, India.
| | - H Rajashekara
- ICAR- Directorate of Cashew Research, Puttur, Karnataka, India
| | - Apoorv Tiwari
- G B Pant University of Agriculture and Technology, Pantnagar, India
| | - M S Bhinda
- ICAR-Vivekananda Institute of Hill Agriculture, Almora, Uttarakhand, India
| | - Anil Kumar
- G B Pant University of Agriculture and Technology, Pantnagar, India
| | - Lakshmi Kant
- ICAR-Vivekananda Institute of Hill Agriculture, Almora, Uttarakhand, India
| | - A Pattanayak
- ICAR- Indian Institute of Agricultural Biotechnology, Ranchi, India
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Meloni M, Gurrieri L, Fermani S, Velie L, Sparla F, Crozet P, Henri J, Zaffagnini M. Ribulose-1,5-bisphosphate regeneration in the Calvin-Benson-Bassham cycle: Focus on the last three enzymatic steps that allow the formation of Rubisco substrate. FRONTIERS IN PLANT SCIENCE 2023; 14:1130430. [PMID: 36875598 PMCID: PMC9978339 DOI: 10.3389/fpls.2023.1130430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
The Calvin-Benson-Bassham (CBB) cycle comprises the metabolic phase of photosynthesis and is responsible for carbon fixation and the production of sugar phosphates. The first step of the cycle involves the enzyme ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) which catalyzes the incorporation of inorganic carbon into 3-phosphoglyceric acid (3PGA). The following steps include ten enzymes that catalyze the regeneration of ribulose-1,5-bisphosphate (RuBP), the substrate of Rubisco. While it is well established that Rubisco activity acts as a limiting step of the cycle, recent modeling studies and experimental evidence have shown that the efficiency of the pathway is also impacted by the regeneration of the Rubisco substrate itself. In this work, we review the current understanding of the structural and catalytic features of the photosynthetic enzymes that catalyze the last three steps of the regeneration phase, namely ribose-5-phosphate isomerase (RPI), ribulose-5-phosphate epimerase (RPE), and phosphoribulokinase (PRK). In addition, the redox- and metabolic-based regulatory mechanisms targeting the three enzymes are also discussed. Overall, this review highlights the importance of understudied steps in the CBB cycle and provides direction for future research aimed at improving plant productivity.
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Affiliation(s)
- Maria Meloni
- Department of Pharmacy and Biotechnologies, University of Bologna, Bologna, Italy
| | - Libero Gurrieri
- Department of Pharmacy and Biotechnologies, University of Bologna, Bologna, Italy
| | - Simona Fermani
- Department of Chemistry “G. Ciamician”, University of Bologna, Bologna, Italy
- Interdepartmental Centre for Industrial Research Health Sciences & Technologies, University of Bologna, Bologna, Italy
| | - Lauren Velie
- Department of Biochemistry and Molecular Biology, University of Massachusetts Amherst, Amherst, MA, United States
| | - Francesca Sparla
- Department of Pharmacy and Biotechnologies, University of Bologna, Bologna, Italy
| | - Pierre Crozet
- Laboratory of Computational and Quantitative Biology, Sorbonne Université, CNRS, Institut de Biologie Paris-Seine, Paris, France
| | - Julien Henri
- Laboratory of Computational and Quantitative Biology, Sorbonne Université, CNRS, Institut de Biologie Paris-Seine, Paris, France
| | - Mirko Zaffagnini
- Department of Pharmacy and Biotechnologies, University of Bologna, Bologna, Italy
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Fan S, Amombo E, Avoga S, Li Y, Yin Y. Salt-responsive bermudagrass microRNAs and insights into light reaction photosynthetic performance. FRONTIERS IN PLANT SCIENCE 2023; 14:1141295. [PMID: 36875615 PMCID: PMC9975589 DOI: 10.3389/fpls.2023.1141295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 01/31/2023] [Indexed: 06/18/2023]
Abstract
INTRODUCTION Bermudagrass (Cynodon dactylon L.) is a warm-season grass with high drought and salt tolerance. However, its cultivation as a silage crop is limited by its lower forage value when compared to other C4 crops. Because of its high genetic variability in abiotic stress tolerance, bermudagrass-mediated genetic breeding offers significant promise for introducing alternative fodder crops in saline and drought-affected regions, and improved photosynthetic capacity is one way for increasing forage yield. METHODS Here, we used RNA sequencing to profile miRNAs in two bermudagrass genotypes with contrasting salt tolerance growing under saline conditions. RESULTS Putatively, 536 miRNA variants were salt-inducible, with the majority being downregulated in salt-tolerant vs sensitive varieties. Also, seven miRNAs putatively targeted 6 genes which were significantly annotated to light reaction photosynthesis. Among the microRNAs, highly abundant miRNA171f in the salt tolerant regime targeted Pentatricopeptide repeat-containing protein and dehydrogenase family 3 member F1 both annotated to electron transport and Light harvesting protein complex 1 genes annotated to light photosynthetic reaction in salt tolerant regime vs salt sensitive counterparts. To facilitate genetic breeding for photosynthetic capacity, we overexpressed miR171f in Medicago tracantula which resulted in a substantial increase in the chlorophyll transient curve, electron transport rate, quantum yield of photosystem II non photochemical quenching, NADPH and biomass accumulation under saline conditions while its targets were downregulated. At ambient light level the electron transport was negatively correlated with all parameters while the NADPH was positively associated higher dry matter in mutants. DISCUSSION These results demonstrate that miR171f improves photosynthetic performance and dry matter accumulation via transcriptional repression of genes in the electron transport pathway under saline conditions and thus a target for breeding.
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Affiliation(s)
- Shugao Fan
- School of Resources and Environmental Engineering, Ludong University, Yantai, China
| | - Erick Amombo
- African Sustainable Agriculture Institute, Mohammed VI Polytechnic University, Laayoune, Morocco
| | - Sheila Avoga
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Science, Wuhan, China
| | - Yating Li
- School of Resources and Environmental Engineering, Ludong University, Yantai, China
| | - Yanling Yin
- School of Resources and Environmental Engineering, Ludong University, Yantai, China
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Pan Y, Cao Y, Chai Y, Meng X, Wang M, Wang G, Guo S. Identification of photosynthetic parameters for superior yield of two super hybrid rice varieties: A cross-scale study from leaf to canopy. FRONTIERS IN PLANT SCIENCE 2023; 14:1110257. [PMID: 36866365 PMCID: PMC9971572 DOI: 10.3389/fpls.2023.1110257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
Enhancing photosynthetic capacity is widely accepted as critical to advancing crop yield. Therefore, identifying photosynthetic parameters positively related to biomass accumulation in elite cultivars is the major focus of current rice research. In this work, we assessed leaf photosynthetic performance, canopy photosynthesis, and yield attributes of super hybrid rice cultivars Y-liangyou 3218 (YLY3218) and Y-liangyou 5867 (YLY5867) at tillering stage and flowering stage, using inbred super rice cultivars Zhendao11(ZD11) and Nanjing 9108 (NJ9108) as control. A diurnal canopy photosynthesis model was applied to estimate the influence of key environmental factors, canopy attributes, and canopy nitrogen status on daily aboveground biomass increment (AMDAY). Results showed that primarily the light-saturated photosynthetic rate at tillering stage contributed to the advancing yield and biomass of super hybrid rice in comparison to inbred super rice, and the light-saturated photosynthetic rate between them was similar at flowering stage. At tillering stage, the higher CO2 diffusion capacity, together with higher biochemical capacity (i.e., maximum carboxylation rate of Rubisco, maximum electron transport rate (J max), and triose phosphate utilization rate) favored leaf photosynthesis of super hybrid rice. Similarly, AMDAY in super hybrid rice was higher than inbred super rice at tillering stage, and comparable at flowering stage partially due to increased canopy nitrogen concentration (SLNave) of inbred super rice. At tillering stage, model simulation revealed that replacement of J max and g m in inbred super rice by super hybrid rice always had a positive effect on AMDAY, and the averaged AMDAY increment was 5.7% and 3.4%, respectively. Simultaneously, the 20% enhancement of total canopy nitrogen concentration through the improvement of SLNave (TNC-SLNave) resulted in the highest AMDAY across cultivars, with an average increase of 11.2%. In conclusion, the advancing yield performance of YLY3218 and YLY5867 was due to the higher J max and g m at tillering stage, and TCN-SLNave is a promising target for future super rice breeding programs.
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Affiliation(s)
- Yonghui Pan
- Jiangsu Provincial Key Lab for Organic Solid Waste Utilization, National Engineering Research Center for Organic-based Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Yiwen Cao
- Jiangsu Provincial Key Lab for Organic Solid Waste Utilization, National Engineering Research Center for Organic-based Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Yixiao Chai
- Jiangsu Provincial Key Lab for Organic Solid Waste Utilization, National Engineering Research Center for Organic-based Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Xusheng Meng
- Jiangsu Provincial Key Lab for Organic Solid Waste Utilization, National Engineering Research Center for Organic-based Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Min Wang
- Jiangsu Provincial Key Lab for Organic Solid Waste Utilization, National Engineering Research Center for Organic-based Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Guanjun Wang
- Center of Agricultural Green Development Promotion, Fuyang, Anhui, China
| | - Shiwei Guo
- Jiangsu Provincial Key Lab for Organic Solid Waste Utilization, National Engineering Research Center for Organic-based Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, Jiangsu, China
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Ermakova M, Lopez-Calcagno PE, Furbank RT, Raines CA, von Caemmerer S. Increased sedoheptulose-1,7-bisphosphatase content in Setaria viridis does not affect C4 photosynthesis. PLANT PHYSIOLOGY 2023; 191:885-893. [PMID: 36282540 PMCID: PMC9922425 DOI: 10.1093/plphys/kiac484] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 09/28/2022] [Indexed: 05/05/2023]
Abstract
Sedoheptulose-1,7-bisphosphatase (SBPase) is one of the rate-limiting enzymes of the Calvin cycle, and increasing the abundance of SBPase in C3 plants provides higher photosynthetic rates and stimulates biomass and yield. C4 plants usually have higher photosynthetic rates because they operate a biochemical CO2-concentrating mechanism between mesophyll and bundle sheath cells. In the C4 system, SBPase and other enzymes of the Calvin cycle are localized to the bundle sheath cells. Here we tested what effect increasing abundance of SBPase would have on C4 photosynthesis. Using green foxtail millet (Setaria viridis), a model C4 plant of NADP-ME subtype, we created transgenic plants with 1.5 to 3.2 times higher SBPase content compared to wild-type plants. Transcripts of the transgene were found predominantly in the bundle sheaths suggesting the correct cellular localization of the protein. The abundance of ribulose-1,5-bisphosphate carboxylase/oxygenase large subunit was not affected in transgenic plants overexpressing SBPase, and neither was leaf chlorophyll content or photosynthetic electron transport parameters. We found no association between SBPase content in S. viridis and saturating rates of CO2 assimilation. Moreover, a detailed analysis of CO2 assimilation rates at different CO2 partial pressures, irradiances, and leaf temperatures showed no improvement of photosynthesis in plants overexpressing SBPase. We discuss the potential implications of these results for understanding the role of SBPase in regulation of C4 photosynthesis.
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Affiliation(s)
- Maria Ermakova
- Centre of Excellence for Translational Photosynthesis, Division of Plant Science, Research School of Biology, The Australian National University, Canberra 2600, Australia
- School of Biological Sciences, Monash University, Melbourne, Victoria 3800, Australia
| | - Patricia E Lopez-Calcagno
- School of Biological Sciences, University of Essex, Colchester CO4 3SQ, UK
- School of Natural and Environmental Sciences, Newcastle University, Newcastle NE1 7RU, UK
| | - Robert T Furbank
- Centre of Excellence for Translational Photosynthesis, Division of Plant Science, Research School of Biology, The Australian National University, Canberra 2600, Australia
| | - Christine A Raines
- School of Biological Sciences, University of Essex, Colchester CO4 3SQ, UK
| | - Susanne von Caemmerer
- Centre of Excellence for Translational Photosynthesis, Division of Plant Science, Research School of Biology, The Australian National University, Canberra 2600, Australia
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Manning T, Birch R, Stevenson T, Nugent G, Whitney S. Bacterial Form II Rubisco can support wild-type growth and productivity in Solanum tuberosum cv. Desiree (potato) under elevated CO 2. PNAS NEXUS 2023; 2:pgac305. [PMID: 36743474 PMCID: PMC9896143 DOI: 10.1093/pnasnexus/pgac305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 12/22/2022] [Indexed: 02/05/2023]
Abstract
The last decade has seen significant advances in the development of approaches for improving both the light harvesting and carbon fixation pathways of photosynthesis by nuclear transformation, many involving multigene synthetic biology approaches. As efforts to replicate these accomplishments from tobacco into crops gather momentum, similar diversification is needed in the range of transgenic options available, including capabilities to modify crop photosynthesis by chloroplast transformation. To address this need, here we describe the first transplastomic modification of photosynthesis in a crop by replacing the native Rubisco in potato with the faster, but lower CO2-affinity and poorer CO2/O2 specificity Rubisco from the bacterium Rhodospirillum rubrum. High level production of R. rubrum Rubisco in the potRr genotype (8 to 10 µmol catalytic sites m2) allowed it to attain wild-type levels of productivity, including tuber yield, in air containing 0.5% (v/v) CO2. Under controlled environment growth at 25°C and 350 µmol photons m2 PAR, the productivity and leaf biochemistry of wild-type potato at 0.06%, 0.5%, or 1.5% (v/v) CO2 and potRr at 0.5% or 1.5% (v/v) CO2 were largely indistinguishable. These findings suggest that increasing the scope for enhancing productivity gains in potato by improving photosynthate production will necessitate improvement to its sink-potential, consistent with current evidence productivity gains by eCO2 fertilization for this crop hit a ceiling around 560 to 600 ppm CO2.
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Affiliation(s)
- Tahnee Manning
- School of Science, RMIT University, Bundoora, VIC 3083, Australia
| | - Rosemary Birch
- Australian Research Council Centre of Excellence for Translational Photosynthesis, Research School of Biology, The Australian National University, 134 Linnaeus Way, Acton, ACT 0200, Australia
| | - Trevor Stevenson
- School of Science, RMIT University, Bundoora, VIC 3083, Australia
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Bowerman AF, Byrt CS, Roy SJ, Whitney SM, Mortimer JC, Ankeny RA, Gilliham M, Zhang D, Millar AA, Rebetzke GJ, Pogson BJ. Potential abiotic stress targets for modern genetic manipulation. THE PLANT CELL 2023; 35:139-161. [PMID: 36377770 PMCID: PMC9806601 DOI: 10.1093/plcell/koac327] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 11/03/2022] [Indexed: 05/06/2023]
Abstract
Research into crop yield and resilience has underpinned global food security, evident in yields tripling in the past 5 decades. The challenges that global agriculture now faces are not just to feed 10+ billion people within a generation, but to do so under a harsher, more variable, and less predictable climate, and in many cases with less water, more expensive inputs, and declining soil quality. The challenges of climate change are not simply to breed for a "hotter drier climate," but to enable resilience to floods and droughts and frosts and heat waves, possibly even within a single growing season. How well we prepare for the coming decades of climate variability will depend on our ability to modify current practices, innovate with novel breeding methods, and communicate and work with farming communities to ensure viability and profitability. Here we define how future climates will impact farming systems and growing seasons, thereby identifying the traits and practices needed and including exemplars being implemented and developed. Critically, this review will also consider societal perspectives and public engagement about emerging technologies for climate resilience, with participatory approaches presented as the best approach.
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Affiliation(s)
- Andrew F Bowerman
- ARC Training Centre for Accelerated Future Crops Development, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Caitlin S Byrt
- ARC Training Centre for Accelerated Future Crops Development, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Stuart John Roy
- ARC Training Centre for Accelerated Future Crops Development, University of Adelaide, South Australia, Australia
- School of Agriculture, Food and Wine & Waite Research Institute, University of Adelaide, Glen Osmond, South Australia, Australia
| | - Spencer M Whitney
- ARC Training Centre for Accelerated Future Crops Development, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Jenny C Mortimer
- ARC Training Centre for Accelerated Future Crops Development, University of Adelaide, South Australia, Australia
- School of Agriculture, Food and Wine & Waite Research Institute, University of Adelaide, Glen Osmond, South Australia, Australia
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Rachel A Ankeny
- ARC Training Centre for Accelerated Future Crops Development, University of Adelaide, South Australia, Australia
- School of Humanities, University of Adelaide, North Terrace, South Australia, Australia
| | - Matthew Gilliham
- ARC Training Centre for Accelerated Future Crops Development, University of Adelaide, South Australia, Australia
- School of Agriculture, Food and Wine & Waite Research Institute, University of Adelaide, Glen Osmond, South Australia, Australia
| | - Dabing Zhang
- ARC Training Centre for Accelerated Future Crops Development, University of Adelaide, South Australia, Australia
- School of Agriculture, Food and Wine & Waite Research Institute, University of Adelaide, Glen Osmond, South Australia, Australia
| | - Anthony A Millar
- ARC Training Centre for Accelerated Future Crops Development, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Greg J Rebetzke
- CSIRO Agriculture & Food, Canberra, Australian Capital Territory, Australia
| | - Barry J Pogson
- ARC Training Centre for Accelerated Future Crops Development, The Australian National University, Canberra, Australian Capital Territory, Australia
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Wu A, Brider J, Busch FA, Chen M, Chenu K, Clarke VC, Collins B, Ermakova M, Evans JR, Farquhar GD, Forster B, Furbank RT, Groszmann M, Hernandez‐Prieto MA, Long BM, Mclean G, Potgieter A, Price GD, Sharwood RE, Stower M, van Oosterom E, von Caemmerer S, Whitney SM, Hammer GL. A cross-scale analysis to understand and quantify the effects of photosynthetic enhancement on crop growth and yield across environments. PLANT, CELL & ENVIRONMENT 2023; 46:23-44. [PMID: 36200623 PMCID: PMC10091820 DOI: 10.1111/pce.14453] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 09/27/2022] [Indexed: 05/29/2023]
Abstract
Photosynthetic manipulation provides new opportunities for enhancing crop yield. However, understanding and quantifying the importance of individual and multiple manipulations on the seasonal biomass growth and yield performance of target crops across variable production environments is limited. Using a state-of-the-art cross-scale model in the APSIM platform we predicted the impact of altering photosynthesis on the enzyme-limited (Ac ) and electron transport-limited (Aj ) rates, seasonal dynamics in canopy photosynthesis, biomass growth, and yield formation via large multiyear-by-location crop growth simulations. A broad list of promising strategies to improve photosynthesis for C3 wheat and C4 sorghum were simulated. In the top decile of seasonal outcomes, yield gains were predicted to be modest, ranging between 0% and 8%, depending on the manipulation and crop type. We report how photosynthetic enhancement can affect the timing and severity of water and nitrogen stress on the growing crop, resulting in nonintuitive seasonal crop dynamics and yield outcomes. We predicted that strategies enhancing Ac alone generate more consistent but smaller yield gains across all water and nitrogen environments, Aj enhancement alone generates larger gains but is undesirable in more marginal environments. Large increases in both Ac and Aj generate the highest gains across all environments. Yield outcomes of the tested manipulation strategies were predicted and compared for realistic Australian wheat and sorghum production. This study uniquely unpacks complex cross-scale interactions between photosynthesis and seasonal crop dynamics and improves understanding and quantification of the potential impact of photosynthesis traits (or lack of it) for crop improvement research.
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Affiliation(s)
- Alex Wu
- ARC Centre of Excellence for Translational Photosynthesis, Centre for Crop Science, Queensland Alliance for Agriculture and Food InnovationThe University of QueenslandBrisbaneQueenslandAustralia
| | - Jason Brider
- ARC Centre of Excellence for Translational Photosynthesis, Centre for Crop Science, Queensland Alliance for Agriculture and Food InnovationThe University of QueenslandBrisbaneQueenslandAustralia
| | - Florian A. Busch
- ARC Centre of Excellence for Translational Photosynthesis, Division of Plant Science, Research School of BiologyThe Australian National UniversityCanberraAustralian Capital TerritoryAustralia
- School of BiosciencesUniversity of BirminghamBirminghamUK
- Birmingham Institute of Forest ResearchUniversity of BirminghamBirminghamUK
| | - Min Chen
- ARC Centre of Excellence for Translational Photosynthesis, School of Life and Environmental Science, Faculty of ScienceUniversity of SydneySydneyNew South WalesAustralia
| | - Karine Chenu
- ARC Centre of Excellence for Translational Photosynthesis, Centre for Crop Science, Queensland Alliance for Agriculture and Food InnovationThe University of QueenslandBrisbaneQueenslandAustralia
| | - Victoria C. Clarke
- ARC Centre of Excellence for Translational Photosynthesis, Division of Plant Science, Research School of BiologyThe Australian National UniversityCanberraAustralian Capital TerritoryAustralia
| | - Brian Collins
- College of Science and EngineeringJames Cook UniversityTownsvilleQueenslandAustralia
| | - Maria Ermakova
- ARC Centre of Excellence for Translational Photosynthesis, Division of Plant Science, Research School of BiologyThe Australian National UniversityCanberraAustralian Capital TerritoryAustralia
| | - John R. Evans
- ARC Centre of Excellence for Translational Photosynthesis, Division of Plant Science, Research School of BiologyThe Australian National UniversityCanberraAustralian Capital TerritoryAustralia
| | - Graham D. Farquhar
- ARC Centre of Excellence for Translational Photosynthesis, Division of Plant Science, Research School of BiologyThe Australian National UniversityCanberraAustralian Capital TerritoryAustralia
| | - Britta Forster
- ARC Centre of Excellence for Translational Photosynthesis, Division of Plant Science, Research School of BiologyThe Australian National UniversityCanberraAustralian Capital TerritoryAustralia
| | - Robert T. Furbank
- ARC Centre of Excellence for Translational Photosynthesis, Division of Plant Science, Research School of BiologyThe Australian National UniversityCanberraAustralian Capital TerritoryAustralia
| | - Michael Groszmann
- ARC Centre of Excellence for Translational Photosynthesis, Division of Plant Science, Research School of BiologyThe Australian National UniversityCanberraAustralian Capital TerritoryAustralia
| | - Miguel A. Hernandez‐Prieto
- ARC Centre of Excellence for Translational Photosynthesis, School of Life and Environmental Science, Faculty of ScienceUniversity of SydneySydneyNew South WalesAustralia
| | - Benedict M. Long
- ARC Centre of Excellence for Translational Photosynthesis, Division of Plant Science, Research School of BiologyThe Australian National UniversityCanberraAustralian Capital TerritoryAustralia
| | - Greg Mclean
- ARC Centre of Excellence for Translational Photosynthesis, Centre for Crop Science, Queensland Alliance for Agriculture and Food InnovationThe University of QueenslandBrisbaneQueenslandAustralia
| | - Andries Potgieter
- ARC Centre of Excellence for Translational Photosynthesis, Centre for Crop Science, Queensland Alliance for Agriculture and Food InnovationThe University of QueenslandBrisbaneQueenslandAustralia
| | - G. Dean Price
- ARC Centre of Excellence for Translational Photosynthesis, Division of Plant Science, Research School of BiologyThe Australian National UniversityCanberraAustralian Capital TerritoryAustralia
| | - Robert E. Sharwood
- Hawkesbury Institute for the EnvironmentWestern Sydney UniversityRichmondNew South WalesAustralia
| | - Michael Stower
- ARC Centre of Excellence for Translational Photosynthesis, Centre for Crop Science, Queensland Alliance for Agriculture and Food InnovationThe University of QueenslandBrisbaneQueenslandAustralia
| | - Erik van Oosterom
- ARC Centre of Excellence for Translational Photosynthesis, Centre for Crop Science, Queensland Alliance for Agriculture and Food InnovationThe University of QueenslandBrisbaneQueenslandAustralia
| | - Susanne von Caemmerer
- ARC Centre of Excellence for Translational Photosynthesis, Division of Plant Science, Research School of BiologyThe Australian National UniversityCanberraAustralian Capital TerritoryAustralia
| | - Spencer M. Whitney
- ARC Centre of Excellence for Translational Photosynthesis, Division of Plant Science, Research School of BiologyThe Australian National UniversityCanberraAustralian Capital TerritoryAustralia
| | - Graeme L. Hammer
- ARC Centre of Excellence for Translational Photosynthesis, Centre for Crop Science, Queensland Alliance for Agriculture and Food InnovationThe University of QueenslandBrisbaneQueenslandAustralia
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Photosynthesis and Salt Exclusion Are Key Physiological Processes Contributing to Salt Tolerance of Canola ( Brassica napus L.): Evidence from Physiology and Transcriptome Analysis. Genes (Basel) 2022; 14:genes14010003. [PMID: 36672744 PMCID: PMC9858917 DOI: 10.3390/genes14010003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 12/12/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022] Open
Abstract
Plant salt tolerance is controlled by various physiological processes such as water and ion homeostasis, photosynthesis, and cellular redox balance, which are in turn controlled by gene expression. In the present study, plants of six canola cultivars (DGL, Dunkled, Faisal Canola, Cyclone, Legend, and Oscar) were evaluated for salt tolerance by subjecting them to 0 or 200 mM NaCl stress. Based on growth, cultivars DGL, Dunkled, and Faisal Canola were ranked as salt tolerant, while cultivars Cyclone, Legend, and Oscar were ranked as salt-sensitive ones. Differential salt tolerance in these canola cultivars was found to be associated with a relatively lower accumulation of Na+ and greater accumulation of K+ in the leaves, lower oxidative damage (MDA), and better antioxidative defense system (Superoxide dismutase, SOD; peroxidase, POD, and catalase, CAT). Cultivar Oscar was the poorest to discriminate Na+ and K+ uptake and accumulation in leaves and had poor antioxidant potential to scavenge ROS. Salt stress did not affect the structural stability of photosystem-II (PSII) till three weeks, thereafter it caused a significant decrease. Salt stress increased the performance index (PIABS) by increasing the density of active reaction centers in Oscar. Salt stress decreased the antenna size thereby lowering the absorption and trapping energy flux, and maintaining the electron transport with an increase in heat dissipation. This may represent a potential mechanism to cope with salt stress. Transcriptome analysis of salt-sensitive cultivar Oscar further revealed that salt stress down-regulated DEGs related to hormonal signal transduction pathways, photosynthesis, and transcription factors, while DEGs related to the biosynthesis of amino acid and ion transport were up-regulated. In conclusion, salt tolerance in canola cultivars was associated with ion exclusion and maintenance of photosynthesis. Salt stress sensitivity in cultivar Oscar was mainly associated with poor control of ion homeostasis which caused oxidative stress and reduced photosynthetic efficiency.
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Li Y, Ma J, Gao X, Tie J, Wu Y, Tang Z, Hu L, Yu J. Exogenous brassinosteroids alleviate calcium deficiency-induced tip-burn by maintaining cell wall structural stability and higher photosynthesis in mini Chinese Cabbage. FRONTIERS IN PLANT SCIENCE 2022; 13:999051. [PMID: 36570895 PMCID: PMC9780586 DOI: 10.3389/fpls.2022.999051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 10/31/2022] [Indexed: 06/17/2023]
Abstract
Tip-burn has seriously affected the yield, quality and commodity value of mini Chinese cabbage. Calcium (Ca2+) deficiency is the main cause of tip-burn. In order to investigate whether exogenous brassinosteroids (BRs) can alleviate tip-burn induced by calcium (Ca2+) deficiency and its mechanism, in this study, Ca2+ deficiency in nutrient solution was used to induced tip-burn, and then distilled water and BRs were sprayed on leaves to observe the tip-burn incidence of mini Chinese cabbage. The tip-burn incidence and disease index, leaf area, fluorescence parameters (Fv/Fm, NPQ, qP andφPSII) and gas exchange parameters (Tr, Pn, Gs and Ci), pigment contents, cell wall components, mesophyll cell ultrastructure and the expression of genes related to chlorophyll degradation were measured. The results showed that exogenous BRs reduced the tip-burn incidence rate and disease index of mini Chinese cabbage, and the tip-burn incidence rate reached the highest on the ninth day after treatment. Exogenous BRs increased the contents of cellulose, hemifiber, water-soluble pectin in Ca2+ deficiency treated leaves, maintaining the stability of cell wall structure. In addition, BRs increased photosynthetic rate by increasing the activities of Ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) and fructose 1,6-bisphosphatase (FBPase) related to Calvin cycle, maintaining relatively complete chloroplast structure and higher chlorophyll content via down-regulating the expression of BrPPH1 and BrPAO1 genes related to chlorophyll degradation. In conclusion, exogenous BRs alleviated calcium deficiency-induced tip-burn by maintaining cell wall structural stability and higher photosynthesis.
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Affiliation(s)
- Yutong Li
- Gansu Provincial Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou, China
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Jizhong Ma
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Xueqin Gao
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Jianzhong Tie
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Yue Wu
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Zhongqi Tang
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Linli Hu
- Gansu Provincial Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou, China
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Jihua Yu
- Gansu Provincial Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou, China
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
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69
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Sukhova E, Ratnitsyna D, Sukhov V. Simulated Analysis of Influence of Changes in H +-ATPase Activity and Membrane CO 2 Conductance on Parameters of Photosynthetic Assimilation in Leaves. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11243435. [PMID: 36559546 PMCID: PMC9783116 DOI: 10.3390/plants11243435] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/03/2022] [Accepted: 12/05/2022] [Indexed: 05/09/2023]
Abstract
Photosynthesis is an important process in plants which influences their development and productivity. Many factors can control the efficiency of photosynthesis, including CO2 conductance of leaf mesophyll, which affects the CO2 availability for Rubisco. It is known that electrical stress signals can decrease this conductance, and the response is probably caused by inactivation of H+-ATPase in the plasma membrane. In the current work, we analyzed the influence of both CO2 conductance in the plasma membrane, and chloroplast envelopes and H+-ATPase activity on photosynthetic CO2 assimilation, using a two-dimensional mathematical model of photosynthesis in leaves. The model included a description of assimilation on the basis of the Farquhar-von Caemmerer-Berry model, ion transport through the plasma membrane, diffusion of CO2 in the apoplast, and transport of CO2 through the plasma membrane and chloroplast envelope. The model showed that the photosynthetic CO2 assimilation rate was mainly dependent on the plasma membrane and chloroplast envelope conductance; direct influence of the H+-ATPase activity (through changes in pH and CO2/HCO3- concentration ratio) on this rate was weak. In contrast, both changes in CO2 conductance of the plasma membrane and chloroplast envelopes and changes in the H+-ATPase activity influenced spatial heterogeneity of the CO2 assimilation on the leaf surface in the simulated two-dimensional system. These effects were also observed under simultaneous changes in the CO2 conductance of the plasma membrane and H+-ATPase activity. Qualitatively similar influence of changes in the CO2 conductance of the plasma membrane and chloroplast envelopes, and changes in the H+-ATPase activity on photosynthesis were shown for two different densities of stomata in the simulated leaf; however, lowering the density of stomata decreased the assimilation rate and increased the heterogeneity of assimilation. The results of the model analysis clarify the potential influence of H+-ATPase inactivation on photosynthesis, and can be the basis for development of new methods for remote sensing of the influence of electrical signals.
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Lysenko V, D. Rajput V, Kumar Singh R, Guo Y, Kosolapov A, Usova E, Varduny T, Chalenko E, Yadronova O, Dmitriev P, Zaruba T. Chlorophyll fluorometry in evaluating photosynthetic performance: key limitations, possibilities, perspectives and alternatives. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2022; 28:2041-2056. [PMID: 36573148 PMCID: PMC9789293 DOI: 10.1007/s12298-022-01263-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 10/25/2022] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
Non-destructive methods for the assessment of photosynthetic parameters of plants are widely applied to evaluate rapidly the photosynthetic performance, plant health, and shifts in plant productivity induced by environmental and cultivation conditions. Most of these methods are based on measurements of chlorophyll fluorescence kinetics, particularly on pulse modulation (PAM) fluorometry. In this paper, fluorescence methods are critically discussed in regard to some their possibilities and limitations inherent to vascular plants and microalgae. Attention is paid to the potential errors related to the underestimation of thylakoidal cyclic electron transport and anoxygenic photosynthesis. PAM-methods are also observed considering the color-addressed measurements. Photoacoustic methods are discussed as an alternative and supplement to fluorometry. Novel Fourier modifications of PAM-fluorometry and photoacoustics are noted as tools allowing simultaneous application of a dual or multi frequency measuring light for one sample.
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Affiliation(s)
- Vladimir Lysenko
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
| | - Vishnu D. Rajput
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
| | - Rupesh Kumar Singh
- Centre of Molecular and Environmental Biology, Department of Biology, Campus of Gualtar, University of Minho, Braga, Portugal
| | - Ya Guo
- School of IoT Engineering, Jiangnan University, Wuxi, China
| | - Alexey Kosolapov
- Russian Research Institute for the Integrated Use and Protection of Water Resources, Rostov-on-Don, Russia
| | - Elena Usova
- Russian Research Institute for the Integrated Use and Protection of Water Resources, Rostov-on-Don, Russia
| | - Tatyana Varduny
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
| | - Elizaveta Chalenko
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
| | - Olga Yadronova
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
| | - Pavel Dmitriev
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
| | - Tatyana Zaruba
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
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Makino A, Suzuki Y, Ishiyama K. Enhancing photosynthesis and yield in rice with improved N use efficiency. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 325:111475. [PMID: 36167261 DOI: 10.1016/j.plantsci.2022.111475] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/27/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
The success of the dwarf breeding of rice, called the Green Revolution in Asia, resulted from increased source and sink capacities depending on significant inputs of N fertilizer. Although N fertilization is essential for increasing cereal production, large inputs of N application have significantly impacted the environment. Transgenic rice overproducing Rubisco has demonstrated increased yields with improved N use efficiency for increasing biomass production under high N fertilization in a paddy field. A large grain cultivar, Akita 63, had a high yield by enlarging the sink capacity without photosynthesis improvement. However, source capacity strongly limited the yield potential under high N fertilization. Enhancing photosynthesis is important for further increasing the yield of current high-yielding cultivars. Developing innovative rice plants with both high photosynthesis and large sink capacity is essential.
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Affiliation(s)
- Amane Makino
- Graduate School of Agricultural Science, Tohoku University, 468-1 Aramaki-Aoba, Aoba-ku, Sendai 980-8572, Japan.
| | - Yuji Suzuki
- Faculty of Agriculture, Iwate University, Morioka, Iwate 020-8550, Japan
| | - Keiki Ishiyama
- Graduate School of Agricultural Science, Tohoku University, 468-1 Aramaki-Aoba, Aoba-ku, Sendai 980-8572, Japan
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72
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Biomolecular Strategies for Vascular Bundle Development to Improve Crop Yield. Biomolecules 2022; 12:biom12121772. [PMID: 36551200 PMCID: PMC9775962 DOI: 10.3390/biom12121772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 11/17/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022] Open
Abstract
The need to produce crops with higher yields is critical due to a growing global population, depletion of agricultural land, and severe climate change. Compared with the "source" and "sink" transport systems that have been studied a lot, the development and utilization of vascular bundles (conducting vessels in plants) are increasingly important. Due to the complexity of the vascular system, its structure, and its delicate and deep position in the plant body, the current research on model plants remains basic knowledge and has not been repeated for crops and applied to field production. In this review, we aim to summarize the current knowledge regarding biomolecular strategies of vascular bundles in transport systems (source-flow-sink), allocation, helping crop architecture establishment, and influence of the external environment. It is expected to help understand how to use sophisticated and advancing genetic engineering technology to improve the vascular system of crops to increase yield.
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73
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Zhan N, Huang L, Wang Z, Xie Y, Shang X, Liu G, Wu Z. Comparative transcriptomics and bioinformatics analysis of genes related to photosynthesis in Eucalyptus camaldulensis. PeerJ 2022; 10:e14351. [PMID: 36389400 PMCID: PMC9661968 DOI: 10.7717/peerj.14351] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 10/16/2022] [Indexed: 11/13/2022] Open
Abstract
The timber species Eucalyptus camaldulensis is one of the most important in southern China. Therefore, it is essential to understand the photosynthetic pattern in eucalyptus leaves. In the present study, eighteen photosynthesis-related genes were analyzed using bioinformatics methods. The results indicated that there were ten differentially expressed ribose-5-phosphate isomerase genes (RPI), and six of them were up-regulated in the mature leaves compared to the young leaves, while others were down-regulated. The differential expression of four rubisco methyltransferase genes (RBCMT) were observed. Two of them were up-regulated, while two were down-regulated in mature leaves compared to young leaves. Furthermore, two ribulose-phosphate-3-epimerase genes (RPE) were up-regulated in the mature leaves compared to the young leaves. In contrast, two genes involved in triosephosphate isomerase (TIM) were down-regulated in mature leaves compared with young leaves. The current study provides basic information about the transcriptome of E. camaldulensis and lays a foundation for further research in developing and utilizing important photosynthetic genes.
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Affiliation(s)
- Ni Zhan
- Research Institute of Fast-growing Trees, Chinese Academy of Forestry, Zhanjiang, Guangdong, China,Langfang Normal University, Langfang, Hebei, China
| | - Liejian Huang
- Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou, Guangdong, China
| | - Zhen Wang
- Langfang Normal University, Langfang, Hebei, China
| | - Yaojian Xie
- Research Institute of Fast-growing Trees, Chinese Academy of Forestry, Zhanjiang, Guangdong, China
| | - Xiuhua Shang
- Research Institute of Fast-growing Trees, Chinese Academy of Forestry, Zhanjiang, Guangdong, China
| | - Guo Liu
- Research Institute of Fast-growing Trees, Chinese Academy of Forestry, Zhanjiang, Guangdong, China
| | - Zhihua Wu
- Research Institute of Fast-growing Trees, Chinese Academy of Forestry, Zhanjiang, Guangdong, China
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74
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Ermakova M, Heyno E, Woodford R, Massey B, Birke H, von Caemmerer S. Enhanced abundance and activity of the chloroplast ATP synthase in rice through the overexpression of the AtpD subunit. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:6891-6901. [PMID: 35904136 PMCID: PMC9629782 DOI: 10.1093/jxb/erac320] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 07/21/2022] [Indexed: 06/02/2023]
Abstract
ATP, produced by the light reactions of photosynthesis, acts as the universal cellular energy cofactor fuelling all life processes. Chloroplast ATP synthase produces ATP using the proton motive force created by solar energy-driven thylakoid electron transport reactions. Here we investigate how increasing abundance of ATP synthase affects leaf photosynthesis and growth of rice, Oryza sativa variety Kitaake. We show that overexpression of AtpD, the nuclear-encoded subunit of the chloroplast ATP synthase, stimulates both abundance of the complex, confirmed by immunodetection of thylakoid complexes separated by Blue Native-PAGE, and ATP synthase activity, detected as higher proton conductivity of the thylakoid membrane. Plants with increased AtpD content had higher CO2 assimilation rates when a stepwise increase in CO2 partial pressure was imposed on leaves at high irradiance. Fitting of the CO2 response curves of assimilation revealed that plants overexpressing AtpD had a higher electron transport rate (J) at high CO2, despite having wild-type-like abundance of the cytochrome b6f complex. A higher maximum carboxylation rate (Vcmax) and lower cyclic electron flow detected in transgenic plants both pointed to an increased ATP production compared with wild-type plants. Our results present evidence that the activity of ATP synthase modulates the rate of electron transport at high CO2 and high irradiance.
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Affiliation(s)
| | | | - Russell Woodford
- Centre of Excellence for Translational Photosynthesis, Division of Plant Science, Research School of Biology, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Baxter Massey
- Centre of Excellence for Translational Photosynthesis, Division of Plant Science, Research School of Biology, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Hannah Birke
- Centre of Excellence for Translational Photosynthesis, Division of Plant Science, Research School of Biology, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Susanne von Caemmerer
- Centre of Excellence for Translational Photosynthesis, Division of Plant Science, Research School of Biology, The Australian National University, Canberra, Australian Capital Territory, Australia
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75
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Suzuki Y, Shiina M, Takegahara-Tamakawa Y, Miyake C, Makino A. Overexpression of Chloroplast Triosephosphate Isomerase Marginally Improves Photosynthesis at Elevated CO2 Levels in Rice. PLANT & CELL PHYSIOLOGY 2022; 63:1500-1509. [PMID: 35921240 DOI: 10.1093/pcp/pcac115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 07/12/2022] [Accepted: 08/03/2022] [Indexed: 06/15/2023]
Abstract
We recently suggested that chloroplast triosephosphate isomerase (cpTPI) has moderate control over the rate of CO2 assimilation (A) at elevated CO2 levels via the capacity for triose phosphate utilization (TPU) in rice (Oryza sativa L.) from its antisense-suppression study. In the present study, the effects of cpTPI overexpression on photosynthesis were examined in transgenic rice plants overexpressing the gene encoding cpTPI. The amounts of cpTPI protein in the two lines of transgenic plants were 4.8- and 12.1-folds higher than in wild-type plants, respectively. The magnitude of the increase approximately corresponded to the increase in transcript levels of cpTPI. A at CO2 levels of 100 and 120 Pa increased by 6-9% in the transgenic plants, whereas those at ambient and low CO2 levels were scarcely affected. Similar increases were observed for TPU capacity estimated from the CO2 response curves of A. These results indicate that the overexpression of cpTPI marginally improved photosynthesis at elevated CO2 levels via improvement in TPU capacity in rice. However, biomass production at a CO2 level of 120 Pa did not increase in transgenic plants, suggesting that the improvement in photosynthesis by cpTPI overexpression was not sufficient to improve biomass production in rice.
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Affiliation(s)
- Yuji Suzuki
- Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka, 020-8550 Japan
| | - Mizuki Shiina
- Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka, 020-8550 Japan
| | | | - Chikahiro Miyake
- Graduate School of Agricultural Science, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe, 657-8501 Japan
| | - Amane Makino
- Graduate School of Agricultural Science, Tohoku University, 468-1 Aramaki-Aoba, Aoba-ku, Sendai, 980-8572 Japan
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76
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A Flashforward Look into Solutions for Fruit and Vegetable Production. Genes (Basel) 2022; 13:genes13101886. [PMID: 36292770 PMCID: PMC9602186 DOI: 10.3390/genes13101886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/26/2022] [Accepted: 10/13/2022] [Indexed: 12/02/2022] Open
Abstract
One of the most important challenges facing current and future generations is how climate change and continuous population growth adversely affect food security. To address this, the food system needs a complete transformation where more is produced in non-optimal and space-limited areas while reducing negative environmental impacts. Fruits and vegetables, essential for human health, are high-value-added crops, which are grown in both greenhouses and open field environments. Here, we review potential practices to reduce the impact of climate variation and ecosystem damages on fruit and vegetable crop yield, as well as highlight current bottlenecks for indoor and outdoor agrosystems. To obtain sustainability, high-tech greenhouses are increasingly important and biotechnological means are becoming instrumental in designing the crops of tomorrow. We discuss key traits that need to be studied to improve agrosystem sustainability and fruit yield.
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77
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Biotechnological Advances to Improve Abiotic Stress Tolerance in Crops. Int J Mol Sci 2022; 23:ijms231912053. [PMID: 36233352 PMCID: PMC9570234 DOI: 10.3390/ijms231912053] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/02/2022] [Accepted: 10/06/2022] [Indexed: 11/16/2022] Open
Abstract
The major challenges that agriculture is facing in the twenty-first century are increasing droughts, water scarcity, flooding, poorer soils, and extreme temperatures due to climate change. However, most crops are not tolerant to extreme climatic environments. The aim in the near future, in a world with hunger and an increasing population, is to breed and/or engineer crops to tolerate abiotic stress with a higher yield. Some crop varieties display a certain degree of tolerance, which has been exploited by plant breeders to develop varieties that thrive under stress conditions. Moreover, a long list of genes involved in abiotic stress tolerance have been identified and characterized by molecular techniques and overexpressed individually in plant transformation experiments. Nevertheless, stress tolerance phenotypes are polygenetic traits, which current genomic tools are dissecting to exploit their use by accelerating genetic introgression using molecular markers or site-directed mutagenesis such as CRISPR-Cas9. In this review, we describe plant mechanisms to sense and tolerate adverse climate conditions and examine and discuss classic and new molecular tools to select and improve abiotic stress tolerance in major crops.
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78
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Hackauf B, Siekmann D, Fromme FJ. Improving Yield and Yield Stability in Winter Rye by Hybrid Breeding. PLANTS (BASEL, SWITZERLAND) 2022; 11:2666. [PMID: 36235531 PMCID: PMC9571156 DOI: 10.3390/plants11192666] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 09/27/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
Rye is the only cross-pollinating small-grain cereal. The unique reproduction biology results in an exceptional complexity concerning genetic improvement of rye by breeding. Rye is a close relative of wheat and has a strong adaptation potential that refers to its mating system, making this overlooked cereal readily adjustable to a changing environment. Rye breeding addresses the emerging challenges of food security associated with climate change. The systematic identification, management, and use of its valuable natural diversity became a feasible option in outbreeding rye only following the establishment of hybrid breeding late in the 20th century. In this article, we review the most recent technological advances to improve yield and yield stability in winter rye. Based on recently released reference genome sequences, SMART breeding approaches are described to counterbalance undesired linkage drag effects of major restorer genes on grain yield. We present the development of gibberellin-sensitive semidwarf hybrids as a novel plant breeding innovation based on an approach that is different from current methods of increasing productivity in rye and wheat. Breeding of new rye cultivars with improved performance and resilience is indispensable for a renaissance of this healthy minor cereal as a homogeneous commodity with cultural relevance in Europe that allows for comparatively smooth but substantial complementation of wheat with rye-based diets, supporting the necessary restoration of the balance between human action and nature.
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Affiliation(s)
- Bernd Hackauf
- Julius Kühn Institute, Institute for Breeding Research on Agricultural Crops, Rudolf-Schick-Platz 3a, 18190 Sanitz, Germany
| | - Dörthe Siekmann
- Hybro Saatzucht GmbH & Co. KG, Langlinger Straße 3, 29565 Wriedel, Germany
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79
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Kannan B, Liu H, Shanklin J, Altpeter F. Towards oilcane: preliminary field evaluation of metabolically engineered sugarcane with hyper-accumulation of triacylglycerol in vegetative tissues. MOLECULAR BREEDING : NEW STRATEGIES IN PLANT IMPROVEMENT 2022; 42:64. [PMID: 37313011 PMCID: PMC10248597 DOI: 10.1007/s11032-022-01333-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 09/24/2022] [Indexed: 06/15/2023]
Abstract
We recently generated oilcane, a metabolically engineered sugarcane with hyper-accumulation of energy dense triacylglycerol in vegetative tissues. Refinement of this strategy in high biomass crops like sugarcane may result in elevated lipid yields that exceed traditional oilseed crops for biodiesel production. This is the first report of agronomic performance, stable co-expression of lipogenic factors, and TAG accumulation in transgenic sugarcane under field conditions. Co-expression of WRI1; DGAT1, OLE1, and RNAi suppression of PXA1 was stable during the 2-year field evaluation and resulted in TAG accumulation up to 4.4% of leaf DW. This TAG accumulation was 70-fold higher than in non-transgenic sugarcane and more than 2-fold higher than previously reported for the same line under greenhouse conditions. TAG accumulation correlated highest with the expression of WRI1. However, constitutive expression of WRI1 was negatively correlated with biomass accumulation. Transgenic lines without WRI1 expression accumulated TAG up to 1.6% of leaf DW and displayed no biomass yield penalty in the plant cane. These findings confirm sugarcane as a promising platform for the production of vegetative lipids and will be used to inform strategies to maximize future biomass and lipid yields. The main conclusion is that constitutive expression of WRI1 in combination with additional lipogenic factors (DGAT1-2, OLE1, PXA1) in sugarcane under field conditions leads to hyper-accumulation of TAG and reduces biomass yield. Supplementary Information The online version contains supplementary material available at 10.1007/s11032-022-01333-5.
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Affiliation(s)
- Baskaran Kannan
- Agronomy Department, Plant Molecular and Cellular Biology Program, Genetics Institute, University of Florida, IFAS, Gainesville, FL USA
| | - Hui Liu
- Biosciences Department, Brookhaven National Laboratory, Upton, Brookhaven, NY USA
| | - John Shanklin
- Biosciences Department, Brookhaven National Laboratory, Upton, Brookhaven, NY USA
| | - Fredy Altpeter
- Agronomy Department, Plant Molecular and Cellular Biology Program, Genetics Institute, University of Florida, IFAS, Gainesville, FL USA
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80
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Uridylation and the SKI complex orchestrate the Calvin cycle of photosynthesis through RNA surveillance of TKL1 in Arabidopsis. Proc Natl Acad Sci U S A 2022; 119:e2205842119. [PMID: 36095196 PMCID: PMC9499578 DOI: 10.1073/pnas.2205842119] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
RNA uridylation, catalyzed by terminal uridylyl transferases (TUTases), represents a conserved and widespread posttranscriptional RNA modification in eukaryotes that affects RNA metabolism. In plants, several TUTases, including HEN1 SUPPRESSOR 1 (HESO1) and UTP: RNA URIDYLYLTRANSFERASE (URT1), have been characterized through genetic and biochemical approaches. However, little is known about their physiological significance during plant development. Here, we show that HESO1 and URT1 act cooperatively with the cytoplasmic 3'-5' exoribonucleolytic machinery component SUPERKILLER 2 (SKI2) to regulate photosynthesis through RNA surveillance of the Calvin cycle gene TRANSKETOLASE 1 (TKL1) in Arabidopsis. Simultaneous dysfunction of HESO1, URT1, and SKI2 resulted in leaf etiolation and reduced photosynthetic efficiency. In addition, we detected massive illegitimate short interfering RNAs (siRNAs) from the TKL1 locus in heso1 urt1 ski2, accompanied by reduced TKL1/2 expression and attenuated TKL activities. Consequently, the metabolic analysis revealed that the abundance of many Calvin cycle intermediates is dramatically disturbed in heso1 urt1 ski2. Importantly, all these molecular and physiological defects were largely rescued by the loss-of-function mutation in RNA-DEPENDENT RNA POLYMERASE 6 (RDR6), demonstrating illegitimate siRNA-mediated TKL silencing. Taken together, our results suggest that HESO1- and URT1-mediated RNA uridylation connects to the cytoplasmic RNA degradation pathway for RNA surveillance, which is crucial for TKL expression and photosynthesis in Arabidopsis.
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81
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Pascual LS, Segarra-Medina C, Gómez-Cadenas A, López-Climent MF, Vives-Peris V, Zandalinas SI. Climate change-associated multifactorial stress combination: A present challenge for our ecosystems. JOURNAL OF PLANT PHYSIOLOGY 2022; 276:153764. [PMID: 35841741 DOI: 10.1016/j.jplph.2022.153764] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 06/30/2022] [Accepted: 07/03/2022] [Indexed: 05/28/2023]
Abstract
Humans negatively influence Earth ecosystems and biodiversity causing global warming, climate change as well as man-made pollution. Recently, the number of different stress factors have increased, and when impacting simultaneously, the multiple stress conditions cause dramatic declines in plant and ecosystem health. Although much is known about how plants and ecosystems are affected by each individual stress, recent research efforts have diverted into how these biological systems respond to several of these stress conditions applied together. Studies of such "multifactorial stress combination" concept have reported a severe decrease in plant survival and microbiome biodiversity along the increasing number of factors in a consistent directional trend. In addition, these results are in concert with studies about how ecosystems and microbiota are affected by natural conditions imposed by climate change. Therefore, all this evidence should serve as an important warning in order to decrease pollutants, create strategies to deal with global warming, and increase the tolerance of plants to multiple stressful factors in combination. Here we review recent studies focused on the impact of abiotic stresses on plants, agrosystems and different ecosystems including forests and microecosystems. In addition, different strategies to mitigate the impact of climate change in ecosystems are discussed.
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Affiliation(s)
- Lidia S Pascual
- Department of Biology, Biochemistry and Environmental Sciences, University Jaume I, Av. de Vicent Sos Baynat, s/n, Castelló de la Plana, 12071, Spain
| | - Clara Segarra-Medina
- Department of Biology, Biochemistry and Environmental Sciences, University Jaume I, Av. de Vicent Sos Baynat, s/n, Castelló de la Plana, 12071, Spain
| | - Aurelio Gómez-Cadenas
- Department of Biology, Biochemistry and Environmental Sciences, University Jaume I, Av. de Vicent Sos Baynat, s/n, Castelló de la Plana, 12071, Spain
| | - María F López-Climent
- Department of Biology, Biochemistry and Environmental Sciences, University Jaume I, Av. de Vicent Sos Baynat, s/n, Castelló de la Plana, 12071, Spain
| | - Vicente Vives-Peris
- Department of Biology, Biochemistry and Environmental Sciences, University Jaume I, Av. de Vicent Sos Baynat, s/n, Castelló de la Plana, 12071, Spain
| | - Sara I Zandalinas
- Department of Biology, Biochemistry and Environmental Sciences, University Jaume I, Av. de Vicent Sos Baynat, s/n, Castelló de la Plana, 12071, Spain.
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82
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Pradhan S, Tyagi R, Sharma S. Combating biotic stresses in plants by synthetic microbial communities: Principles, applications, and challenges. J Appl Microbiol 2022; 133:2742-2759. [PMID: 36039728 DOI: 10.1111/jam.15799] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 08/24/2022] [Indexed: 11/29/2022]
Abstract
Presently, agriculture worldwide is facing the major challenge of feeding the increasing population sustainably. The conventional practices have not only failed to meet the projected needs, but also led to tremendous environmental consequences. Hence, to ensure a food-secure and environmentally sound future, the major thrust is on sustainable alternatives. Due to challenges associated with conventional means of application of biocontrol agents in the management of biotic stresses in agro-ecosystems, significant transformations in this context is needed. The crucial role played by soil microbiomes in efficiently and sustainably managing the agricultural production has unfolded a newer approach of rhizospheric engineering that shows immense promise in mitigating biotic stresses in an eco-friendly manner. The strategy of generating synthetic microbial communities (SynCom), by integrating omics approaches with traditional techniques of enumeration and in-depth analysis of plant-microbe interactions, is encouraging. The review discusses the significance of the rhizospheric microbiome in plant's fitness, and its manipulation for enhancing plant attributes. The focus of the review is to critically analyze the potential tools for the design and utilization of SynCom as a sustainable approach for rhizospheric engineering to ameliorate biotic stresses in plants. Further, based on the synthesis of reports in the area, we have put forth possible solutions to some of the critical issues that impair the large-scale application of SynComs in agriculture.
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Affiliation(s)
- Salila Pradhan
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, New Delhi
| | - Rashi Tyagi
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, New Delhi
| | - Shilpi Sharma
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, New Delhi
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83
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Altaf MM, Diao XP, Altaf MA, Ur Rehman A, Shakoor A, Khan LU, Jan BL, Ahmad P. Silicon-mediated metabolic upregulation of ascorbate glutathione (AsA-GSH) and glyoxalase reduces the toxic effects of vanadium in rice. JOURNAL OF HAZARDOUS MATERIALS 2022; 436:129145. [PMID: 35739696 DOI: 10.1016/j.jhazmat.2022.129145] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 04/21/2022] [Accepted: 05/10/2022] [Indexed: 06/15/2023]
Abstract
Although beneficial metalloid silicon (Si) has been proven to reduce the toxicity of several heavy metals, there is a lack of understanding regarding Si potential function in mitigating phytotoxicity induced by vanadium (V). In this study, effect of Si (1.5 mM) on growth, biomass production, V uptake, reactive oxygen species (ROS), methylglyoxal (MG) formation, selected antioxidants enzymes activities, glyoxalase enzymes under V stress (35 mg L-1) was investigated in hydroponic experiment. The results showed that V stress reduced rice growth, caused V accumulation in rice. Addition of Si to the nutritional medium increased plant growth, biomass yield, root length, root diameter, chlorophyll parameters, photosynthetic assimilation, ion leakage, antioxidant enzymes activities under V stress. Notably, Si sustained V-homeostasis and alleviated V caused oxidative stress by boosting ascorbate (AsA) levels and the activity of antioxidant enzymes in V stressed rice plants. Furthermore, Si protected rice seedlings against the harmful effects of methylglyoxal by increasing the activity of glyoxalase enzymes. Additionally, Si increased the expression of numerous genes involved in the detoxification of reactive oxygen species (e.g., OsCuZnSOD1, OsCaTB, OsGPX1, OsAPX1, OsGR2, and OsGSTU37) and methylglyoxal (e.g., OsGLYI-1 and OsGLYII-2). The findings supported that Si can be applied to plants to minimize the V availability to plant, and also induced V stress tolerance.
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Affiliation(s)
- Muhammad Mohsin Altaf
- College of Ecology and Environment, Hainan University, Haikou 570228, PR China; State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, PR China
| | - Xiao-Ping Diao
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, PR China; School of Biology, Hainan Normal University, Haikou 571158, PR China.
| | | | - Atique Ur Rehman
- Department of Agronomy, Bahauddin Zakariya University, Multan, Pakistan
| | - Awais Shakoor
- Department of Environment and Soil Sciences, University of Lleida, Avinguda Alcalde Rovira Roure 191, Lleida 25198, Spain
| | - Latif Ullah Khan
- College of Tropical Crops, Hainan University, Haikou 570228, PR China
| | - Basit Latief Jan
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Parvaiz Ahmad
- Department of Botany, GDC Pulwama, Jammu and Kashmir 192301, India
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84
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Ruiz-Vera UM, Acevedo-Siaca LG, Brown KL, Afamefule C, Gherli H, Simkin AJ, Long SP, Lawson T, Raines CA. Field-grown ictB tobacco transformants show no difference in photosynthetic efficiency for biomass relative to the wild type. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:4897-4907. [PMID: 35561330 PMCID: PMC9366323 DOI: 10.1093/jxb/erac193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 05/12/2022] [Indexed: 06/15/2023]
Abstract
In this study, four tobacco transformants overexpressing the inorganic carbon transporter B gene (ictB) were screened for photosynthetic performance relative to the wild type (WT) in field-based conditions. The WT and transgenic tobacco plants were evaluated for photosynthetic performance to determine the maximum rate of carboxylation (Vc, max), maximum rate of electron transport (Jmax), the photosynthetic compensation point (Γ*), quantum yield of PSII (ΦPSII), and mesophyll conductance (gm). Additionally, all plants were harvested to compare differences in above-ground biomass. Overall, transformants did not perform better than the WT on photosynthesis-, biomass-, and leaf composition-related traits. This is in contrast to previous studies that have suggested significant increases in photosynthesis and yield with the overexpression of ictB, although not widely evaluated under field conditions. These findings suggest that the benefit of ictB is not universal and may only be seen under certain growth conditions. While there is certainly still potential benefit to utilizing ictB in the future, further effort must be concentrated on understanding the underlying function of the gene and in which environmental conditions it offers the greatest benefit to crop performance. As it stands at present, it is possible that ictB overexpression may be largely favorable in controlled environments, such as greenhouses.
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Affiliation(s)
- Ursula M Ruiz-Vera
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, 1206 W Gregory Drive, Urbana, IL, USA
- Bayer CropScience LLC, Bayer Marana Greenhouse, 9475 N Sanders Rd, Tucson, AZ, USA
| | - Liana G Acevedo-Siaca
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, 1206 W Gregory Drive, Urbana, IL, USA
- International Maize and Wheat Improvement Center (CIMMYT), México-Veracruz, El Batán Km. 45, Mexico
| | - Kenny L Brown
- School of Life Sciences, University of Essex, Wivenhoe Park, Colchester CO4 3SQ, UK
- N2 Applied AS, Hagaløkkveien 7, 1383 Asker, Norway
| | - Chidi Afamefule
- School of Life Sciences, University of Essex, Wivenhoe Park, Colchester CO4 3SQ, UK
| | - Hussein Gherli
- School of Life Sciences, University of Essex, Wivenhoe Park, Colchester CO4 3SQ, UK
| | - Andrew J Simkin
- School of Biosciences, University of Kent, Canterbury CT2 7NJ, UK
- Crop Science and Production Systems, NIAB-EMR, New Road, East Malling, Kent, UK
| | - Stephen P Long
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, 1206 W Gregory Drive, Urbana, IL, USA
- Lancaster Environment Centre, University of Lancaster, Lancaster, UK
| | - Tracy Lawson
- School of Life Sciences, University of Essex, Wivenhoe Park, Colchester CO4 3SQ, UK
| | - Christine A Raines
- School of Life Sciences, University of Essex, Wivenhoe Park, Colchester CO4 3SQ, UK
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85
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Momayyezi M, Rippner DA, Duong FV, Raja PV, Brown PJ, Kluepfel DA, Earles JM, Forrestel EJ, Gilbert ME, McElrone AJ. Structural and functional leaf diversity lead to variability in photosynthetic capacity across a range of Juglans regia genotypes. PLANT, CELL & ENVIRONMENT 2022; 45:2351-2365. [PMID: 35642731 PMCID: PMC9543909 DOI: 10.1111/pce.14370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 05/17/2022] [Accepted: 05/28/2022] [Indexed: 06/15/2023]
Abstract
Similar to other cropping systems, few walnut cultivars are used as scion in commercial production. Germplasm collections can be used to diversify cultivar options and hold potential for improving crop productivity, disease resistance and stress tolerance. In this study, we explored the anatomical and biochemical bases of photosynthetic capacity and response to water stress in 11 Juglans regia accessions in the U.S. department of agriculture, agricultural research service (USDA-ARS) National Clonal Germplasm. Net assimilation rate (An ) differed significantly among accessions and was greater in lower latitudes coincident with higher stomatal and mesophyll conductances, leaf thickness, mesophyll porosity, gas-phase diffusion, leaf nitrogen and lower leaf mass and stomatal density. High CO2 -saturated assimilation rates led to increases in An under diffusional and biochemical limitations. Greater An was found in lower-latitude accessions native to climates with more frost-free days, greater precipitation seasonality and lower temperature seasonality. As expected, water stress consistently impaired photosynthesis with the highest % reductions in lower-latitude accessions (A3, A5 and A9), which had the highest An under well-watered conditions. However, An for A3 and A5 remained among the highest under dehydration. J. regia accessions, which have leaf structural traits and biochemistry that enhance photosynthesis, could be used as commercial scions or breeding parents to enhance productivity.
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Affiliation(s)
- Mina Momayyezi
- Department of Viticulture and EnologyUniversity of CaliforniaDavisCaliforniaUSA
| | | | - Fiona V. Duong
- Department of Viticulture and EnologyUniversity of CaliforniaDavisCaliforniaUSA
| | - Pranav V. Raja
- Department of Viticulture and EnologyUniversity of CaliforniaDavisCaliforniaUSA
| | - Patrick J. Brown
- Department of Plant SciencesUniversity of CaliforniaDavisCaliforniaUSA
| | | | - J. Mason Earles
- Department of Viticulture and EnologyUniversity of CaliforniaDavisCaliforniaUSA
| | | | | | - Andrew J. McElrone
- Department of Viticulture and EnologyUniversity of CaliforniaDavisCaliforniaUSA
- USDA‐ARS, Crops Pathology and Genetics Research UnitDavisCaliforniaUSA
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86
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Kelly S. The quest for more food. Science 2022; 377:370-371. [PMID: 35862546 DOI: 10.1126/science.add3882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Rice yield is increased by boosting nitrogen uptake and photosynthesis.
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Affiliation(s)
- Steven Kelly
- Department of Plant Sciences, University of Oxford, Oxford, UK
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87
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Chang TG, Shi Z, Zhao H, Song Q, He Z, Van Rie J, Den Boer B, Galle A, Zhu XG. 3dCAP-Wheat: An Open-Source Comprehensive Computational Framework Precisely Quantifies Wheat Foliar, Nonfoliar, and Canopy Photosynthesis. PLANT PHENOMICS 2022; 2022:9758148. [PMID: 36059602 PMCID: PMC9394111 DOI: 10.34133/2022/9758148] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Accepted: 06/18/2022] [Indexed: 11/24/2022]
Abstract
Canopy photosynthesis is the sum of photosynthesis of all above-ground photosynthetic tissues. Quantitative roles of nonfoliar tissues in canopy photosynthesis remain elusive due to methodology limitations. Here, we develop the first complete canopy photosynthesis model incorporating all above-ground photosynthetic tissues and validate this model on wheat with state-of-the-art gas exchange measurement facilities. The new model precisely predicts wheat canopy gas exchange rates at different growth stages, weather conditions, and canopy architectural perturbations. Using the model, we systematically study (1) the contribution of both foliar and nonfoliar tissues to wheat canopy photosynthesis and (2) the responses of wheat canopy photosynthesis to plant physiological and architectural changes. We found that (1) at tillering, heading, and milking stages, nonfoliar tissues can contribute ~4, ~32, and ~50% of daily gross canopy photosynthesis (Acgross; ~2, ~15, and ~-13% of daily net canopy photosynthesis, Acnet) and absorb ~6, ~42, and ~60% of total light, respectively; (2) under favorable condition, increasing spike photosynthetic activity, rather than enlarging spike size or awn size, can enhance canopy photosynthesis; (3) covariation in tissue respiratory rate and photosynthetic rate may be a major factor responsible for less than expected increase in daily Acnet; and (4) in general, erect leaves, lower spike position, shorter plant height, and proper plant densities can benefit daily Acnet. Overall, the model, together with the facilities for quantifying plant architecture and tissue gas exchange, provides an integrated platform to study canopy photosynthesis and support rational design of photosynthetically efficient wheat crops.
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Affiliation(s)
- Tian-Gen Chang
- National Key Laboratory for Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Zai Shi
- National Key Laboratory for Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Honglong Zhao
- National Key Laboratory for Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Qingfeng Song
- National Key Laboratory for Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Zhonghu He
- Insitute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- International Maize and Wheat Improvement Center (CIMMYT) China Office, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jeroen Van Rie
- BASF Belgium Coordination Center-Innovation Center Gent, Technologiepark-Zwijnaarde 101, 9052 Gent, Belgium
| | - Bart Den Boer
- BASF Belgium Coordination Center-Innovation Center Gent, Technologiepark-Zwijnaarde 101, 9052 Gent, Belgium
| | - Alexander Galle
- BASF Belgium Coordination Center-Innovation Center Gent, Technologiepark-Zwijnaarde 101, 9052 Gent, Belgium
| | - Xin-Guang Zhu
- National Key Laboratory for Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China
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88
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Growth, Yield and Photosynthetic Performance of Winter Wheat as Affected by Co-Application of Nitrogen Fertilizer and Organic Manures. Life (Basel) 2022; 12:life12071000. [PMID: 35888089 PMCID: PMC9319553 DOI: 10.3390/life12071000] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 06/24/2022] [Accepted: 06/26/2022] [Indexed: 11/25/2022] Open
Abstract
The application of organic manures was found to be beneficial, however, the integrated use of organic manures with chemical nitrogen fertilizers has proven more sustainable in increasing the photosynthetic attributes and grain yield of the winter-wheat crop. A multi-factor split-plot design was adopted, nitrogen and manure fertilizer treatments were set in the sub-plots, including nitrogen-gradient treatment of T1:0 kg N ha−1, T2:100 kg N ha−1, T3:200 kg N ha−1, and T4:300 kg N ha−1 (pure nitrogen -fertilizer application) The 25% reduction in nitrogen combined with the manure-fertilizer application includes T5:75 kg N ha−1 nitrogen and 25 kg N ha−1 manure, T6:150 kg N ha−1 nitrogen and 50 kg N ha−1 manure, and T7:225 kg N ha−1 nitrogen and 75 kg N ha−1 manure. The maximum results of the total chlorophyll content and photosynthetic rate were 5.73 mg/g FW and 68.13 m mol m−2 s−1, observed under T4 in Zhongmai 175, as compared to Jindong 22 at the heading stage. However, the maximum results of intercellular CO2 concentration were 1998.47 μmol mol−1, observed under T3 in Jindong 22, as compared to Zhongmai 175 at the tillering stage. The maximum results of LAI were 5.35 (cm2), observed under T7 in Jindong 22, as compared to Zhongmai 175 at the booting stage. However, the maximum results of Tr and Gs were 6.31 mmol H2O m−2 s−1 and 0.90 H2O mol m−2 s−1, respectively, observed under T7 in Zhongmai 175 as compared to Jindong 22 at the flowering stage. The results revealed that grain yield 8696.93 kg ha−1, grains spike−1 51.33 (g), and 1000-grain weight 39.27 (g) were significantly higher, under T3 in Zhongmai 175, as compared to Jindong 22. Moreover, the spike number plot−1 of 656.67 m2 was significantly higher in Jindong 22, as compared to Zhongmai 175. It was concluded from the study that the combined application of nitrogen and manure fertilizers in winter wheat is significant for enhancing seed at the jointing and flowering stages. For increased grain yield and higher economic return, Zhongmai 175 outperformed the other cultivars examined. This research brings awareness toward the nitrogen-fertilizer-management approach established for farmers’ practice, which might be observed as an instruction to increase agricultural management for the winter-wheat-growth season.
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89
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Arshad R, Saccon F, Bag P, Biswas A, Calvaruso C, Bhatti AF, Grebe S, Mascoli V, Mahbub M, Muzzopappa F, Polyzois A, Schiphorst C, Sorrentino M, Streckaité S, van Amerongen H, Aro EM, Bassi R, Boekema EJ, Croce R, Dekker J, van Grondelle R, Jansson S, Kirilovsky D, Kouřil R, Michel S, Mullineaux CW, Panzarová K, Robert B, Ruban AV, van Stokkum I, Wientjes E, Büchel C. A kaleidoscope of photosynthetic antenna proteins and their emerging roles. PLANT PHYSIOLOGY 2022; 189:1204-1219. [PMID: 35512089 PMCID: PMC9237682 DOI: 10.1093/plphys/kiac175] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 03/17/2022] [Indexed: 05/17/2023]
Abstract
Photosynthetic light-harvesting antennae are pigment-binding proteins that perform one of the most fundamental tasks on Earth, capturing light and transferring energy that enables life in our biosphere. Adaptation to different light environments led to the evolution of an astonishing diversity of light-harvesting systems. At the same time, several strategies have been developed to optimize the light energy input into photosynthetic membranes in response to fluctuating conditions. The basic feature of these prompt responses is the dynamic nature of antenna complexes, whose function readily adapts to the light available. High-resolution microscopy and spectroscopic studies on membrane dynamics demonstrate the crosstalk between antennae and other thylakoid membrane components. With the increased understanding of light-harvesting mechanisms and their regulation, efforts are focusing on the development of sustainable processes for effective conversion of sunlight into functional bio-products. The major challenge in this approach lies in the application of fundamental discoveries in light-harvesting systems for the improvement of plant or algal photosynthesis. Here, we underline some of the latest fundamental discoveries on the molecular mechanisms and regulation of light harvesting that can potentially be exploited for the optimization of photosynthesis.
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Affiliation(s)
- Rameez Arshad
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Olomouc 783 71, Czech Republic
- Electron Microscopy Group, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen 9747 AG, The Netherlands
| | - Francesco Saccon
- School of Biological and Behavioural Sciences, Queen Mary University of London, London, UK
| | - Pushan Bag
- Department of Plant Physiology, Umeå Plant Science Centre, Umeå University, Umeå 901 87, Sweden
| | - Avratanu Biswas
- Department of Physics and Astronomy and LaserLaB, Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam 1081 HV, The Netherlands
| | - Claudio Calvaruso
- Institute for Molecular Biosciences, Goethe University of Frankfurt, Frankfurt 60438, Germany
| | - Ahmad Farhan Bhatti
- Laboratory of Biophysics, Wageningen University, Wageningen, the Netherlands
| | - Steffen Grebe
- Department of Life Technologies, MolecularPlant Biology, University of Turku, Turku FI–20520, Finland
| | - Vincenzo Mascoli
- Department of Physics and Astronomy and LaserLaB, Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam 1081 HV, The Netherlands
| | - Moontaha Mahbub
- School of Biological and Behavioural Sciences, Queen Mary University of London, London, UK
- Department of Botany, Jagannath University, Dhaka 1100, Bangladesh
| | - Fernando Muzzopappa
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, Université Paris-Saclay, Gif sur Yvette 1198, France
| | - Alexandros Polyzois
- Université de Paris, Faculté de Pharmacie de Paris, CiTCoM UMR 8038 CNRS, Paris 75006, France
| | | | - Mirella Sorrentino
- Photon Systems Instruments, spol. s.r.o., Drásov, Czech Republic
- Department of Agricultural Sciences, University of Naples Federico II, Naples 80138, Italy
| | - Simona Streckaité
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, Université Paris-Saclay, Gif sur Yvette 1198, France
| | | | - Eva-Mari Aro
- Department of Life Technologies, MolecularPlant Biology, University of Turku, Turku FI–20520, Finland
| | - Roberto Bassi
- Dipartimento di Biotecnologie, Università di Verona, Verona, Italy
| | - Egbert J Boekema
- Electron Microscopy Group, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen 9747 AG, The Netherlands
| | - Roberta Croce
- Department of Physics and Astronomy and LaserLaB, Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam 1081 HV, The Netherlands
| | - Jan Dekker
- Department of Physics and Astronomy and LaserLaB, Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam 1081 HV, The Netherlands
| | - Rienk van Grondelle
- Department of Physics and Astronomy and LaserLaB, Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam 1081 HV, The Netherlands
| | - Stefan Jansson
- Department of Plant Physiology, Umeå Plant Science Centre, Umeå University, Umeå 901 87, Sweden
| | - Diana Kirilovsky
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, Université Paris-Saclay, Gif sur Yvette 1198, France
| | - Roman Kouřil
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Olomouc 783 71, Czech Republic
| | - Sylvie Michel
- Université de Paris, Faculté de Pharmacie de Paris, CiTCoM UMR 8038 CNRS, Paris 75006, France
| | - Conrad W Mullineaux
- School of Biological and Behavioural Sciences, Queen Mary University of London, London, UK
| | - Klára Panzarová
- Photon Systems Instruments, spol. s.r.o., Drásov, Czech Republic
| | - Bruno Robert
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, Université Paris-Saclay, Gif sur Yvette 1198, France
| | - Alexander V Ruban
- School of Biological and Behavioural Sciences, Queen Mary University of London, London, UK
| | - Ivo van Stokkum
- Department of Physics and Astronomy and LaserLaB, Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam 1081 HV, The Netherlands
| | - Emilie Wientjes
- Laboratory of Biophysics, Wageningen University, Wageningen, the Netherlands
| | - Claudia Büchel
- Institute for Molecular Biosciences, Goethe University of Frankfurt, Frankfurt 60438, Germany
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90
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Castorena M, Olson ME, Enquist BJ, Fajardo A. Toward a general theory of plant carbon economics. Trends Ecol Evol 2022; 37:829-837. [PMID: 35717415 DOI: 10.1016/j.tree.2022.05.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 05/12/2022] [Accepted: 05/17/2022] [Indexed: 11/18/2022]
Abstract
Plant life-history variation reflects different outcomes of natural selection given the strictures of resource allocation trade-offs. However, there is limited theory of selection predicting how leaves, stems, roots, and reproductive organs should evolve in concert across environments. Here, we synthesize two optimality theories to offer a general theory of plant carbon economics, named as Gmax theory, that shows how life-history variation is limited to phenotypes that have an approximately similar lifetime net carbon gain per body mass. In consequence, fast-slow economics spectra are the result of trait combinations obtaining similar lifetime net carbon gains from leaves and similar net carbon investment costs in stems, roots, and reproductive organs. Gmax theory also helps explain ecosystem and crop productivity and even helps guide carbon conservation strategies.
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Affiliation(s)
- Matiss Castorena
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ 85719, USA.
| | - Mark E Olson
- Instituto de Biología, Universidad Nacional Autónoma de México, Ciudad de México 04510, México
| | - Brian J Enquist
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ 85719, USA; Santa Fe Institute, 1399 Hyde Park Road, Santa Fe, NM 87501, USA
| | - Alex Fajardo
- Instituto de Investigación Interdisciplinario (I3), Universidad de Talca, Campus Lircay, Talca 3460000, Chile.
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91
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Zeng F, Zhu L, Wang G, Liang Y, Ma D, Wang J. Higher CO 2 Assimilation in Selected Rice Recombinant Inbred Lines Is Driven by Higher CO 2 Diffusion and Light Use Efficiency Related to Leaf Anatomy and Mesophyll Cell Density. FRONTIERS IN PLANT SCIENCE 2022; 13:915050. [PMID: 35812953 PMCID: PMC9261980 DOI: 10.3389/fpls.2022.915050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 05/04/2022] [Indexed: 06/15/2023]
Abstract
Leaf anatomy determining the light distribution within the leaf and exerting influence on CO2 diffusion is considered to have dramatic potential for photosynthesis performance increase. In this study, we observed that two rice recombinant inbred lines, H138 and H217 (RILF11 plants from Sasanishiki × IRAT10), have higher net CO2 assimilation (An) than their parent Sasanishiki due mainly to the improvement of leaf anatomy. Our results showed that An positively correlated with anatomy traits' mesophyll cell number per cross-sectional area (NO.mescell/Acros) and mesophyll area (Ames). NO.mescell/Acros exert direct and indirect effects on An. Compared to Sasanishiki flag leaves, IRAT10, H138, and H217 have higher mesophyll cell numbers. Simultaneously, higher chlorophyll content and expression of genes encoding the light-harvesting protein of PSII and PSI (Lhcb1, 2, 3 and Lhca1, 2, 3) were recorded in IRAT10, H138, and H217, which facilitates light use efficiency. Higher electron transport rate and RuBP concentration were recorded in IRAT10, H138, and H217 flag leaves. Retinoblastoma-related gene (OsRBR1), exerting effects on mesophyll cell density, can be used to modify leaf anatomy for improving leaf photosynthesis. Additionally, higher stomatal conductance and mesophyll conductance were also recorded in H138 and H217 than in Sasanishiki. Furthermore, we modeled mesophyll conductance through anatomical traits, and the results revealed that chloroplast thickness was the dominant factor restricting CO2 diffusion within mesophyll cells rather than cell wall thickness. Higher RuBP content accompanied by higher CO2 concentration within the carboxylation set in H138 and H217 flag leaves contributed to higher CO2 assimilation.
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92
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Vignati E, Lipska M, Dunwell JM, Caccamo M, Simkin AJ. Fruit Development in Sweet Cherry. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11121531. [PMID: 35736682 PMCID: PMC9227597 DOI: 10.3390/plants11121531] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 06/02/2022] [Accepted: 06/04/2022] [Indexed: 05/19/2023]
Abstract
Fruits are an important source of vitamins, minerals and nutrients in the human diet. They also contain several compounds of nutraceutical importance that have significant antioxidant and anti-inflammatory roles, which can protect the consumer from diseases, such as cancer, and cardiovascular disease as well as having roles in reducing the build-up of LDL-cholesterol in blood plasma and generally reduce the risks of disease and age-related decline in health. Cherries contain high concentrations of bioactive compounds and minerals, including calcium, phosphorous, potassium and magnesium, and it is, therefore, unsurprising that cherry consumption has a positive impact on health. This review highlights the development of sweet cherry fruit, the health benefits of cherry consumption, and the options for increasing consumer acceptance and consumption.
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Affiliation(s)
- Edoardo Vignati
- NIAB, New Road, East Malling ME19 6BJ, UK; (E.V.); (M.L.)
- School of Agriculture, Policy and Development, University of Reading, Whiteknights, Reading RG6 6EU, UK;
| | - Marzena Lipska
- NIAB, New Road, East Malling ME19 6BJ, UK; (E.V.); (M.L.)
| | - Jim M. Dunwell
- School of Agriculture, Policy and Development, University of Reading, Whiteknights, Reading RG6 6EU, UK;
| | - Mario Caccamo
- NIAB, Cambridge Crop Research, Lawrence Weaver Road, Cambridge CB3 0LE, UK;
| | - Andrew J. Simkin
- NIAB, New Road, East Malling ME19 6BJ, UK; (E.V.); (M.L.)
- School of Biosciences, University of Kent, Canterbury CT2 7NJ, UK
- Correspondence:
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93
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Srivastava R, Kobayashi Y, Koyama H, Sahoo L. Overexpression of cowpea NAC transcription factors promoted growth and stress tolerance by boosting photosynthetic activity in Arabidopsis. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 319:111251. [PMID: 35487661 DOI: 10.1016/j.plantsci.2022.111251] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/07/2022] [Accepted: 03/10/2022] [Indexed: 05/07/2023]
Abstract
ATAF-like NAC transcription factors are bonafide regulators of stress-signaling. However, their overexpression often exerts growth-retardation by activating ABA-hypersensitivity, chloroplast-degradation, or carbon-starvation. To improve tolerance to multiple stress complying with growth sustainability, we examined two ATAF orthologs, VuNAC1 and VuNAC2, isolated from a drought-hardy cowpea genotype, for a harmonized regulation of stress and growth signaling. The genes were induced by dehydration, NaCl, polyethylene glycol, heat, cold, ABA, and light. Analysis of the promoter-elements and regulatory network corroborated the integration of circadian, hormonal, stress, developmental, and nutrition signals, being VuNAC1/2 the central transcriptional-switch interfacing growth and stress responses. The constitutive gene overexpression in Arabidopsis resulted in an improved embryonic, rosette, and inflorescence growth, under optimum as well as limiting nutrition, in association with increased photosynthetic activity and stomatal-density. The transgenic seedlings manifested tolerance to dehydration, salinity, aluminum, cadmium, and H2O2 toxicity, in addition to ABA-mediated seed dormancy and hypersensitivity. The soil-grown plants survived severe drought and hypersalinity by maintaining the water-status and membrane integrity through the accumulation of stress protectants, such as proline, glutathione, and ascorbate. Unlike their orthologs from other species, VuNAC1/2 conferred tolerance to multiple abiotic stresses in line with improved growth attributes via regulation of photosynthetic controls and nutritional balance, suggesting growth being a crucial component of stress-tolerance and recovery. Such unique stress-responsive transcription factors, which also confer photosynthetic gain, could be sustainable biotechnological tools for developing stress-tolerant crops and translating the improved growth into yield without unintended trade-offs.
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Affiliation(s)
- Richa Srivastava
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam, 781039, India
| | - Yuriko Kobayashi
- Faculty of Applied Biological Sciences, Gifu University, 1-1, Yanagido, Gifu 501-1193, Japan
| | - Hiroyuki Koyama
- Faculty of Applied Biological Sciences, Gifu University, 1-1, Yanagido, Gifu 501-1193, Japan
| | - Lingaraj Sahoo
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam, 781039, India.
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94
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Theeuwen TPJM, Logie LL, Harbinson J, Aarts MGM. Genetics as a key to improving crop photosynthesis. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:3122-3137. [PMID: 35235648 PMCID: PMC9126732 DOI: 10.1093/jxb/erac076] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 02/23/2022] [Indexed: 05/02/2023]
Abstract
Since the basic biochemical mechanisms of photosynthesis are remarkably conserved among plant species, genetic modification approaches have so far been the main route to improve the photosynthetic performance of crops. Yet, phenotypic variation observed in wild species and between varieties of crop species implies there is standing natural genetic variation for photosynthesis, offering a largely unexplored resource to use for breeding crops with improved photosynthesis and higher yields. The reason this has not yet been explored is that the variation probably involves thousands of genes, each contributing only a little to photosynthesis, making them hard to identify without proper phenotyping and genetic tools. This is changing, though, and increasingly studies report on quantitative trait loci for photosynthetic phenotypes. So far, hardly any of these quantitative trait loci have been used in marker assisted breeding or genomic selection approaches to improve crop photosynthesis and yield, and hardly ever have the underlying causal genes been identified. We propose to take the genetics of photosynthesis to a higher level, and identify the genes and alleles nature has used for millions of years to tune photosynthesis to be in line with local environmental conditions. We will need to determine the physiological function of the genes and alleles, and design novel strategies to use this knowledge to improve crop photosynthesis through conventional plant breeding, based on readily available crop plant germplasm. In this work, we present and discuss the genetic methods needed to reveal natural genetic variation, and elaborate on how to apply this to improve crop photosynthesis.
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Affiliation(s)
- Tom P J M Theeuwen
- Laboratory of Genetics, Wageningen University & Research, Wageningen, The Netherlands
- Correspondence:
| | - Louise L Logie
- Laboratory of Genetics, Wageningen University & Research, Wageningen, The Netherlands
| | - Jeremy Harbinson
- Biophysics, Wageningen University & Research, Wageningen, The Netherlands
| | - Mark G M Aarts
- Laboratory of Genetics, Wageningen University & Research, Wageningen, The Netherlands
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95
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Sharwood RE, Quick WP, Sargent D, Estavillo GM, Silva-Perez V, Furbank RT. Mining for allelic gold: finding genetic variation in photosynthetic traits in crops and wild relatives. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:3085-3108. [PMID: 35274686 DOI: 10.1093/jxb/erac081] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 02/28/2022] [Indexed: 06/14/2023]
Abstract
Improvement of photosynthetic traits in crops to increase yield potential and crop resilience has recently become a major breeding target. Synthetic biology and genetic technologies offer unparalleled opportunities to create new genetics for photosynthetic traits driven by existing fundamental knowledge. However, large 'gene bank' collections of germplasm comprising historical collections of crop species and their relatives offer a wealth of opportunities to find novel allelic variation in the key steps of photosynthesis, to identify new mechanisms and to accelerate genetic progress in crop breeding programmes. Here we explore the available genetic resources in food and fibre crops, strategies to selectively target allelic variation in genes underpinning key photosynthetic processes, and deployment of this variation via gene editing in modern elite material.
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Affiliation(s)
- Robert E Sharwood
- Hawkesbury Institute for the Environment, Western Sydney University, Richmond, NSW, Australia
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology, Australian National University, Canberra, ACT, Australia
| | - W Paul Quick
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology, Australian National University, Canberra, ACT, Australia
- International Rice Research Institute, Los Baños, Laguna, Philippines
| | - Demi Sargent
- Hawkesbury Institute for the Environment, Western Sydney University, Richmond, NSW, Australia
| | | | | | - Robert T Furbank
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology, Australian National University, Canberra, ACT, Australia
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96
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Burnett AC, Kromdijk J. Can we improve the chilling tolerance of maize photosynthesis through breeding? JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:3138-3156. [PMID: 35143635 PMCID: PMC9126739 DOI: 10.1093/jxb/erac045] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 02/02/2022] [Indexed: 05/11/2023]
Abstract
Chilling tolerance is necessary for crops to thrive in temperate regions where cold snaps and lower baseline temperatures place limits on life processes; this is particularly true for crops of tropical origin such as maize. Photosynthesis is often adversely affected by chilling stress, yet the maintenance of photosynthesis is essential for healthy growth and development, and most crucially for yield. In this review, we describe the physiological basis for enhancing chilling tolerance of photosynthesis in maize by examining nine key responses to chilling stress. We synthesize current knowledge of genetic variation for photosynthetic chilling tolerance in maize with respect to each of these traits and summarize the extent to which genetic mapping and candidate genes have been used to understand the genomic regions underpinning chilling tolerance. Finally, we provide perspectives on the future of breeding for photosynthetic chilling tolerance in maize. We advocate for holistic and high-throughput approaches to screen for chilling tolerance of photosynthesis in research and breeding programmes in order to develop resilient crops for the future.
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Affiliation(s)
- Angela C Burnett
- Department of Plant Sciences, University of CambridgeCambridge, UK
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97
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Sales CRG, Molero G, Evans JR, Taylor SH, Joynson R, Furbank RT, Hall A, Carmo-Silva E. Phenotypic variation in photosynthetic traits in wheat grown under field versus glasshouse conditions. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:3221-3237. [PMID: 35271722 PMCID: PMC9126738 DOI: 10.1093/jxb/erac096] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 03/08/2022] [Indexed: 05/19/2023]
Abstract
Recognition of the untapped potential of photosynthesis to improve crop yields has spurred research to identify targets for breeding. The CO2-fixing enzyme Rubisco is characterized by a number of inefficiencies, and frequently limits carbon assimilation at the top of the canopy, representing a clear target for wheat improvement. Two bread wheat lines with similar genetic backgrounds and contrasting in vivo maximum carboxylation activity of Rubisco per unit leaf nitrogen (Vc,max,25/Narea) determined using high-throughput phenotyping methods were selected for detailed study from a panel of 80 spring wheat lines. Detailed phenotyping of photosynthetic traits in the two lines using glasshouse-grown plants showed no difference in Vc,max,25/Narea determined directly via in vivo and in vitro methods. Detailed phenotyping of glasshouse-grown plants of the 80 wheat lines also showed no correlation between photosynthetic traits measured via high-throughput phenotyping of field-grown plants. Our findings suggest that the complex interplay between traits determining crop productivity and the dynamic environments experienced by field-grown plants needs to be considered in designing strategies for effective wheat crop yield improvement when breeding for particular environments.
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Affiliation(s)
- Cristina R G Sales
- Lancaster Environment Centre, Lancaster University, Library Avenue, Lancaster LA1 4YQ, UK
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK
- Correspondence: or
| | - Gemma Molero
- International Maize and Wheat Improvement Centre (CIMMYT), Int. Apdo. Postal 6-641, 06600 Mexico, DF, Mexico
- KWS Momont Recherche, 7 rue de Martinval, 59246 Mons-en-Pévèle, France
| | - John R Evans
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology, The Australian National University, Canberra ACT 2601, Australia
| | - Samuel H Taylor
- Lancaster Environment Centre, Lancaster University, Library Avenue, Lancaster LA1 4YQ, UK
| | - Ryan Joynson
- Organisms and Ecosystems, Earlham Institute, Norwich Research Park, Norwich NR4 7UG, UK
- Limagrain Europe, CS 3911, 63720 Chappes, France
| | - Robert T Furbank
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology, The Australian National University, Canberra ACT 2601, Australia
| | - Anthony Hall
- Organisms and Ecosystems, Earlham Institute, Norwich Research Park, Norwich NR4 7UG, UK
| | - Elizabete Carmo-Silva
- Lancaster Environment Centre, Lancaster University, Library Avenue, Lancaster LA1 4YQ, UK
- Correspondence: or
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98
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Mercado MA, Studer AJ. Meeting in the Middle: Lessons and Opportunities from Studying C 3-C 4 Intermediates. ANNUAL REVIEW OF PLANT BIOLOGY 2022; 73:43-65. [PMID: 35231181 DOI: 10.1146/annurev-arplant-102720-114201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The discovery of C3-C4 intermediate species nearly 50 years ago opened up a new avenue for studying the evolution of photosynthetic pathways. Intermediate species exhibit anatomical, biochemical, and physiological traits that range from C3 to C4. A key feature of C3-C4 intermediates that utilize C2 photosynthesis is the improvement in photosynthetic efficiency compared with C3 species. Although the recruitment of some core enzymes is shared across lineages, there is significant variability in gene expression patterns, consistent with models that suggest numerous evolutionary paths from C3 to C4 photosynthesis. Despite the many evolutionary trajectories, the recruitment of glycine decarboxylase for C2 photosynthesis is likely required. As technologies enable high-throughput genotyping and phenotyping, the discovery of new C3-C4 intermediates species will enrich comparisons between evolutionary lineages. The investigation of C3-C4 intermediate species will enhance our understanding of photosynthetic mechanisms and evolutionary processes and will potentially aid in crop improvement.
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Affiliation(s)
| | - Anthony J Studer
- Department of Crop Sciences, University of Illinois, Urbana, Illinois, USA; ,
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99
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Drincovich MF, Maurino VG. Adjustments of carbon allocation and stomatal dynamics by target localized strategies to increase crop productivity under changing climates. JOURNAL OF PLANT PHYSIOLOGY 2022; 272:153685. [PMID: 35364488 DOI: 10.1016/j.jplph.2022.153685] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 03/22/2022] [Accepted: 03/22/2022] [Indexed: 06/14/2023]
Abstract
Increasing crop productivity to ensure food security for future generations is one of the greatest challenges in current plant research. This challenge is even greater due to global climate changes, as enhancing crop yields must occur against the backdrop of increasingly changing environments, particularly rising temperatures and water constraints. Global crop yield growth depends on an improved dynamic balance between carbon and water usage. Here we discuss different approaches that highlight the role of vascular tissue and guard cells in attempting to mitigate the carbon-water trade-off. We argue that crop engineering in the future will require the incorporation of a combination of improved traits. Since targeted gene modifications generally produce fewer undesirable pleiotropic effects than constitutive modifications, we envision that modifications of specific cell types, such as phloem companion cells and guard cells, represent an effective approach for adding beneficial gene modifications in the same plant. This approach will enable trait stacking to design future crops with both high yield and resilience to various climate change stresses.
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Affiliation(s)
- Maria F Drincovich
- Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI-CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, University of Rosario, Rosario, Argentina.
| | - Veronica G Maurino
- Molekulare Pflanzenphysiologie, Rheinische Friedrich-Wilhelms-Universität Bonn, Bonn, Germany.
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100
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Lopez MA, Moreira FF, Hearst A, Cherkauer K, Rainey KM. Physiological breeding for yield improvement in soybean: solar radiation interception-conversion, and harvest index. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2022; 135:1477-1491. [PMID: 35275253 DOI: 10.1007/s00122-022-04048-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 01/27/2022] [Indexed: 06/14/2023]
Abstract
KEY MESSAGE Efficiency of light interception, Radiation use efficiency and harvest index can be used as targets to improve grain yield potential in soybean. Grain yield (GY) production can be expressed as the result of three main efficiencies: light interception (Ei), radiation use (RUE), and harvest index (HI). Although dissecting GY through these three efficiencies is not entirely new, there is a lack of knowledge about the phenotypic variation, the genetic architecture, and the relative contribution of these three efficiencies on GY in soybean. This knowledge gap coupled with laborious phenotyping prevents the active consideration of these efficiencies into breeding programs. This study aims to reveal the phenotypic variation, heritability, genetic relationships, genetic architecture, and genomic prediction for Ei, RUE, and HI in soybean. We evaluated a maturity control panel of 383 Recombinant Inbred Lines (RILs) selected from the soybean nested association mapping (SoyNAM) population. Dry matter ground measured along with canopy coverage (CC) from UAS imagery were collected in three environments. Light interception was modeled through a logistic curve using CC as a proxy. The total above-ground biomass collected during the growing season and its respective cumulative light intercepted were used to derive RUE through linear models fitting. Additive-genetic correlations, genome-wide association (GWA) and whole-genome regressions (WGR) were performed to evaluate the relationship between traits, their association with genomic regions, and the feasibility of predicting these efficiencies with genomic information. Correlation analyses considered three groups: the entire data set, and the high- and low-yielding RILs to determine association as a function of the GY. Our results revealed moderate to high phenotypic variation for Ei, RUE, and HI with ranges of 8.5%, 1.1 g MJ-1, and 0.2, respectively. Additive-genetic correlation revealed a strong relationship of GY with HI and moderate with RUE and Ei when whole data set was considered, but negligible contribution of HI on GY when just the top 100 was analyzed. The GWA analyses showed that Ei is associated with three SNPs; two of them located on chromosome 7 and one on chromosome 11 with no previous quantitative trait loci (QTLs) reported for these regions. RUE is associated with four SNPs on chromosomes 1, 7, 11, and 18. Some of these QTLs are novel, while others are previously documented for plant architecture and chlorophyll content. Two SNPs positioned on chromosome 13 and 15 with previous QTLs reported for plant height and seed set, weight and abortion were associated with HI. WGR showed high predictive ability for Ei, RUE, and HI with maximum correlation ranging between 0.75 and 0.80. Future improvements in GY can be expected through strategies prioritizing Ei for short-term results when using high yielding germplasm and RUE for medium- and long-term outcomes. This work is a pioneer attempt to integrate traditional physiological traits into the breeding process in the context of physiological breeding.
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Affiliation(s)
| | | | - Anthony Hearst
- Department of Agricultural and Biological Engineering, Purdue University, West Lafayette, IN, USA
| | - Keith Cherkauer
- Department of Agricultural and Biological Engineering, Purdue University, West Lafayette, IN, USA
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