1
|
Leconte JML, Marco M, Nicolas B, Gabriela B, Sébastien C, Olivier C, Alexis C, Marc L, Rémy M, Nicolas P, Camille T, Clémence P, Virginie MT, Langlade NB. Multi-scale characterisation of cold response reveals immediate and long-term impacts on cell physiology up to seed composition in sunflower. PLANT, CELL & ENVIRONMENT 2024. [PMID: 38828995 DOI: 10.1111/pce.14941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 03/27/2024] [Accepted: 04/28/2024] [Indexed: 06/05/2024]
Abstract
Early sowing can help summer crops escape drought and can mitigate the impacts of climate change on them. However, it exposes them to cold stress during initial developmental stages, which has both immediate and long-term effects on development and physiology. To understand how early night-chilling stress impacts plant development and yield, we studied the reference sunflower line XRQ under controlled, semi-controlled and field conditions. We performed high-throughput imaging of the whole plant parts and obtained physiological and transcriptomic data from leaves, hypocotyls and roots. We observed morphological reductions in early stages under field and controlled conditions, with a decrease in root development, an increase in reactive oxygen species content in leaves and changes in lipid composition in hypocotyls. A long-term increase in leaf chlorophyll suggests a stress memory mechanism that was supported by transcriptomic induction of histone coding genes. We highlighted DEGs related to cold acclimation such as chaperone, heat shock and late embryogenesis abundant proteins. We identified genes in hypocotyls involved in lipid, cutin, suberin and phenylalanine ammonia lyase biosynthesis and ROS scavenging. This comprehensive study describes new phenotyping methods and candidate genes to understand phenotypic plasticity better in response to chilling and study stress memory in sunflower.
Collapse
Affiliation(s)
- Jean Michel Louis Leconte
- Université de Toulouse, INRAE, UMR LIPME, Castanet-Tolosan, France
- SYNGENTA SEEDS, Saint Sauveur, France
| | - Moroldo Marco
- Université de Toulouse, INRAE, UMR LIPME, Castanet-Tolosan, France
| | - Blanchet Nicolas
- Université de Toulouse, INRAE, UMR LIPME, Castanet-Tolosan, France
- Université de Toulouse, INRAE, UE APC, Castanet-Tolosan, France
| | - Bindea Gabriela
- INSERM, Laboratory of Integrative Cancer Immunology, Paris, France
- Centre de Recherche des Cordeliers, Sorbonne Université, Université Paris Cité, Paris, France
- Equipe Labellisée Ligue Contre le Cancer, Paris, France
| | | | - Catrice Olivier
- Université de Toulouse, INRAE, UMR LIPME, Castanet-Tolosan, France
| | | | | | - Marandel Rémy
- Université de Toulouse, INRAE, UE APC, Castanet-Tolosan, France
| | - Pouilly Nicolas
- Université de Toulouse, INRAE, UMR LIPME, Castanet-Tolosan, France
| | - Tapy Camille
- Université de Toulouse, INRAE, UMR LIPME, Castanet-Tolosan, France
| | | | | | | |
Collapse
|
2
|
Akula NN, Abdelhakim L, Knazovický M, Ottosen CO, Rosenqvist E. Plant responses to co-occurring heat and water deficit stress: A comparative study of tolerance mechanisms in old and modern wheat genotypes. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 210:108595. [PMID: 38581807 DOI: 10.1016/j.plaphy.2024.108595] [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: 01/04/2024] [Revised: 03/11/2024] [Accepted: 04/01/2024] [Indexed: 04/08/2024]
Abstract
Global climate change increases the likelihood of co-occurrence of hot and dry spells with increased intensity, frequency, and duration. Studying the impact of the two stresses provide a better understanding of tolerance mechanisms in wheat, and our study was focused on revealing plant stress responses to different severities of combined stress at two phenophases in old and modern wheat genotypes. During the stem elongation and anthesis stages, plants were exposed to four treatments: control, deficit irrigation, combined heat, and deficit irrigation at 31 °C (HD31) and 37 °C (HD37). The modern genotypes were less affected by deficit irrigation at stem elongation as they maintained higher photosynthesis, stomatal conductance, and leaf cooling than old genotypes. When the HD37 stress was imposed during anthesis, the modern genotypes exhibited superior performance compared to the old, which was due to their higher photosynthetic rates resulting from improved biochemical regulation and a higher chlorophyll content. The plant responses varied during two phenophases under the combined stress exposure. Genotypes subjected to HD37 stress during stem elongation, photosynthesis was mainly controlled by stomatal regulation, whereas at anthesis it was predominated by biochemical regulation. These findings contribute to a deeper comprehension of plant tolerance mechanisms in response to different intensities of co-occurring hot and dry weather conditions.
Collapse
Affiliation(s)
- Nagashree N Akula
- Department of Food Science, Plant, Food & Climate, Aarhus University, Agro Food Park 48, DK-8200, Aarhus N, Denmark.
| | - Lamis Abdelhakim
- Department of Food Science, Plant, Food & Climate, Aarhus University, Agro Food Park 48, DK-8200, Aarhus N, Denmark
| | - Mikulás Knazovický
- Department of Food Science, Plant, Food & Climate, Aarhus University, Agro Food Park 48, DK-8200, Aarhus N, Denmark
| | - Carl-Otto Ottosen
- Department of Food Science, Plant, Food & Climate, Aarhus University, Agro Food Park 48, DK-8200, Aarhus N, Denmark
| | - Eva Rosenqvist
- Department of Plant and Environmental Sciences, Crop Sciences, University of Copenhagen, Hoejbakkegaard Allé 9, DK-2630, Taastrup, Denmark
| |
Collapse
|
3
|
Attia H, Alamer KH. Supplementation of Jasmonic acid Mitigates the Damaging Effects of Arsenic Stress on Growth, Photosynthesis and Nitrogen Metabolism in Rice. RICE (NEW YORK, N.Y.) 2024; 17:31. [PMID: 38671283 PMCID: PMC11052983 DOI: 10.1186/s12284-024-00709-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024]
Abstract
Experiments were conducted to evaluate the role of exogenously applied jasmonic acid (JA; 0.1 and 0.5 µM) in alleviating the toxic effects of arsenic (As; 5 and 10 µM) stress in rice. Plants treated with As showed considerable decline in growth attributes like height, fresh and dry weight of plant. Arsenic stress reduced the content of δ-amino livulenic acid (δ-ALA), glutamate 1-semialdehyde (GSA), total chlorophylls and carotenoids, with more reduction evident at higher (10 µM) As concentrations, however exogenously supplied JA alleviated the decline to considerable extent. Arsenic stress mediated decline in photosynthetic gas exchange parameters, Fv/Fm (PSII activity) and Rubisco activity was alleviated by the exogenous treatment of JA. Arsenic stress caused oxidative damage which was evident as increased lipid peroxidation, lipoxygenase activity and hydrogen peroxide concentrations however, JA treatment declined these parameters. Treatment of JA improved the activity of nitrate reductase and glutamate synthase under unstressed conditions and also alleviated the decline triggered by As stress. Activity of antioxidant enzymes assayed increased due to As stress, and the supplementation of JA caused further increase in their activities. Moreover, the content of proline, free amino acids and total phenols increased significantly due to JA application under stressed and unstressed conditions. Treatment of JA increased the content of nitrogen and potassium while as reduced As accumulation significantly.
Collapse
Affiliation(s)
- Houneida Attia
- Department of Biology, College of Sciences, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia.
| | - Khalid H Alamer
- Biological Sciences Department, Faculty of Science and Arts, King Abdulaziz University, Rabigh, 21911, Saudi Arabia
| |
Collapse
|
4
|
Li L, Li Y, Ding G. Response mechanism of carbon metabolism of Pinus massoniana to gradient high temperature and drought stress. BMC Genomics 2024; 25:166. [PMID: 38347506 PMCID: PMC10860282 DOI: 10.1186/s12864-024-10054-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 01/25/2024] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND The carbon metabolism pathway is of paramount importance for the growth and development of plants, exerting a pivotal regulatory role in stress responses. The exacerbation of drought impacts on the plant carbon cycle due to global warming necessitates comprehensive investigation into the response mechanisms of Masson Pine (Pinus massoniana Lamb.), an exemplary pioneer drought-tolerant tree, thereby establishing a foundation for predicting future forest ecosystem responses to climate change. RESULTS The seedlings of Masson Pine were utilized as experimental materials in this study, and the transcriptome, metabolome, and photosynthesis were assessed under varying temperatures and drought intensities. The findings demonstrated that the impact of high temperature and drought on the photosynthetic rate and transpiration rate of Masson Pine seedlings was more pronounced compared to individual stressors. The analysis of transcriptome data revealed that the carbon metabolic pathways of Masson Pine seedlings were significantly influenced by high temperature and drought co-stress, with a particular impact on genes involved in starch and sucrose metabolism. The metabolome analysis revealed that only trehalose and Galactose 1-phosphate were specifically associated with the starch and sucrose metabolic pathways. Furthermore, the trehalose metabolic heat map was constructed by integrating metabolome and transcriptome data, revealing a significant increase in trehalose levels across all three comparison groups. Additionally, the PmTPS1, PmTPS5, and PmTPPD genes were identified as key regulatory genes governing trehalose accumulation. CONCLUSIONS The combined effects of high temperature and drought on photosynthetic rate, transpiration rate, transcriptome, and metabolome were more pronounced than those induced by either high temperature or drought alone. Starch and sucrose metabolism emerged as the pivotal carbon metabolic pathways in response to high temperature and drought stress in Masson pine. Trehalose along with PmTPS1, PmTPS5, and PmTPPD genes played crucial roles as metabolites and key regulators within the starch and sucrose metabolism.
Collapse
Affiliation(s)
- Liangliang Li
- Forest Resources and Environment Research Center, Key Laboratory of Forest Cultivation in Plateau Mountain of Guizhou Province, College of Forestry, Guizhou University, 550001, Guiyang, China
- Institute of Mountain Resources of Guizhou Province, Guiyang, China, 550001
| | - Yan Li
- Forest Resources and Environment Research Center, Key Laboratory of Forest Cultivation in Plateau Mountain of Guizhou Province, College of Forestry, Guizhou University, 550001, Guiyang, China
| | - Guijie Ding
- Forest Resources and Environment Research Center, Key Laboratory of Forest Cultivation in Plateau Mountain of Guizhou Province, College of Forestry, Guizhou University, 550001, Guiyang, China.
| |
Collapse
|
5
|
Xu C, Wang Y, Yang H, Tang Y, Liu B, Hu X, Hu Z. Cold acclimation alleviates photosynthetic inhibition and oxidative damage induced by cold stress in citrus seedlings. PLANT SIGNALING & BEHAVIOR 2023; 18:2285169. [PMID: 38015652 PMCID: PMC10761016 DOI: 10.1080/15592324.2023.2285169] [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: 09/17/2023] [Accepted: 11/11/2023] [Indexed: 11/30/2023]
Abstract
Cold stress seriously inhibits plant growth and development, geographical distribution, and yield stability of plants. Cold acclimation (CA) is an important strategy for modulating cold stress, but the mechanism by which CA induces plant resistance to cold stress is still not clear. The purpose of this study was to investigate the effect of CA treatment on the cold resistance of citrus seedlings under cold stress treatment, and to use seedlings without CA treatment as the control (NA). The results revealed that CA treatment increased the content of photosynthetic pigments under cold stress, whereas cold stress greatly reduced the value of gas exchange parameters. CA treatment also promoted the activity of Rubisco and FBPase, as well as led to an upregulation of the transcription levels of photosynthetic related genes (rbcL and rbcS),compared to the NA group without cold stress. In addition, cold stress profoundly reduced photochemical chemistry of photosystem II (PSII), especially the maximum quantum efficiency (Fv/Fm) in PSII. Conversely, CA treatment improved the chlorophyll a fluorescence parameters, thereby improving electron transfer efficiency. Moreover, under cold stress, CA treatment alleviated oxidative stress damage to cell membranes by inhibiting the concentration of H2O2 and MDA, enhancing the activities of superoxide dismutase (SOD), catalase (CAT), ascorbic acid peroxidase (APX) and glutathione reductase (GR), accompanied by an increase in the expression level of antioxidant enzyme genes (CuZnSOD1, CAT1, APX and GR). Additionally, CA also increased the contents of abscisic acid (ABA) and salicylic acid (SA) in plants under cold stress. Overall, we concluded that CA treatment suppressed the negative effects of cold stress by enhancing photosynthetic performance, antioxidant enzymes functions and plant hormones contents.
Collapse
Affiliation(s)
- Chao Xu
- Nanchang Key Laboratory of Germplasm Innovation and Utilization of Fruit and Tea, Jiangxi Academy of Agricultural Sciences, Nanchang, P. R. China
- Institute of Environment and Sustainable Development in Agriculture, CAAS, Beijing, P. R. China
| | - Yuting Wang
- Nanchang Key Laboratory of Germplasm Innovation and Utilization of Fruit and Tea, Jiangxi Academy of Agricultural Sciences, Nanchang, P. R. China
| | - Huidong Yang
- Nanchang Key Laboratory of Germplasm Innovation and Utilization of Fruit and Tea, Jiangxi Academy of Agricultural Sciences, Nanchang, P. R. China
| | - Yuqing Tang
- Nanchang Key Laboratory of Germplasm Innovation and Utilization of Fruit and Tea, Jiangxi Academy of Agricultural Sciences, Nanchang, P. R. China
| | - Buchun Liu
- Institute of Environment and Sustainable Development in Agriculture, CAAS, Beijing, P. R. China
| | - Xinlong Hu
- Nanchang Key Laboratory of Germplasm Innovation and Utilization of Fruit and Tea, Jiangxi Academy of Agricultural Sciences, Nanchang, P. R. China
| | - Zhongdong Hu
- Nanchang Key Laboratory of Germplasm Innovation and Utilization of Fruit and Tea, Jiangxi Academy of Agricultural Sciences, Nanchang, P. R. China
| |
Collapse
|
6
|
Lv H, Liang C, Liu W, Chen N, Li X, Wang Q, Yao X, Wang J, Zhu L, Wang J. Multi-level biological effects of diverse alkyl chains phthalate esters on cotton seedlings (Gossypium hirsutum L.): Insights into individual, physiological-biochemical and molecular perspectives. JOURNAL OF HAZARDOUS MATERIALS 2023; 460:132352. [PMID: 37619280 DOI: 10.1016/j.jhazmat.2023.132352] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/18/2023] [Accepted: 08/19/2023] [Indexed: 08/26/2023]
Abstract
Phthalate esters (PAEs) are organic contaminants that pose environmental threat and safety risks to soil health and crop production. However, the ecological toxicity of different PAEs to cotton and the underlying mechanisms are not clear. This study investigated the ecotoxic effects and potential mechanisms of different alkyl-chain PAEs, including dioctyl phthalate (DOP), dibutyl phthalate (DBP), and diethyl phthalate (DEP) on cotton seedlings at multiple levels. The results showed that PAEs significantly hindered the growth and development of cotton. The chlorophyll content decreased by 1.87-31.66 %, accompanied by non-stomatal photosynthetic inhibition. The antioxidant system was activated by the three PAEs in cotton seedlings, while the osmotic potential was boosted intracellularly. Additionally, PAEs significantly interfered with functional gene expression and exhibited genotoxicity. Risk assessment results indicated that the ecotoxicity was DOP >DBP >DEP, with a "dose-response" relationship. The affinity between the three PAEs and catalase increased as the alkyl chain length increased, further supporting the toxicity sequence. Surprisingly, the bioconcentration factors of short-chain DEP were 8.07 ± 5.89 times and 1837.49 ± 826.83 times higher than those of long-chain DBP and DOP, respectively. These results support the ecological risk assessment of PAEs in cotton and provide new insights into determining the toxicity levels of different PAEs.
Collapse
Affiliation(s)
- Huijuan Lv
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271000, China
| | - Chunliu Liang
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271000, China
| | - Wenrong Liu
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271000, China
| | - Na Chen
- Ningyang Environmental Monitoring Centre, Ningyang, Tai'an, Shandong 271400, China
| | - Xianxu Li
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271000, China
| | - Qian Wang
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271000, China
| | - Xiangfeng Yao
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271000, China
| | - Jinhua Wang
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271000, China
| | - Lusheng Zhu
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271000, China
| | - Jun Wang
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271000, China.
| |
Collapse
|
7
|
Xu W, Wuyun T, Chen J, Yu S, Zhang X, Zhang L. Responses of Trollius chinensis to drought stress and rehydration: From photosynthetic physiology to gene expression. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 201:107841. [PMID: 37331075 DOI: 10.1016/j.plaphy.2023.107841] [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: 03/26/2023] [Revised: 05/20/2023] [Accepted: 06/13/2023] [Indexed: 06/20/2023]
Abstract
Drought stress occurs more frequently in recent years due to the global climate change. Widely distributed in northern China, Mongolia, and Russia, Trollius chinensis Bunge has high medicinal and ornamental values and is often exposed to drought stress, while the mechanism underlying its drought response is still unclear. In this study, we applied 74-76% (control, CK), 49-51% (mild drought), 34-36% (moderate drought), and 19-21% (severe drought, SD) of the soil gravimetric water content to T. chinensis, and measured leaf physiological characteristics on the 0, 5th, 10th, 15th day after the soil reaching the set drought severities, and on the 10th day after rehydration. The results showed that many physiological parameters, such as chlorophyll contents, Fv/Fm, ΦPSⅡ, Pn, and gs decreased with the deepening of severity and duration of drought stress and recovered to some extent after rehydration. On the 10th day of drought stress, leaves in SD and CK were selected for RNA-Seq, and 1649 differentially expressed genes (DEGs) were found, including 548 up-regulated and 1101 down-regulated DEGs. Gene Ontology enrichment found that the DEGs were mainly enriched in catalytic activity and thylakoid. Koyto Encyclopedia of Genes and Genomes enrichment found that DEGs were enriched in some metabolic pathways such as carbon fixation and photosynthesis. Among them, the differential expression of genes related to photosynthesis process, ABA biosynthesis and signaling pathway, such as NCED, SnRK2, PsaD, PsbQ, and PetE, might explain why T. chinensis could tolerate and recover from as long as 15 days of severe drought conditions.
Collapse
Affiliation(s)
- Wenyi Xu
- College of Landscape Architecture, Zhejiang A&F University, Hangzhou, 311300, China; College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin, 150030, China
| | - Tana Wuyun
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Tartu, 51006, Estonia.
| | - Jing Chen
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin, 150030, China
| | - Shuhan Yu
- College of Landscape Architecture, Zhejiang A&F University, Hangzhou, 311300, China
| | - Xinyang Zhang
- College of Landscape Architecture, Zhejiang A&F University, Hangzhou, 311300, China
| | - Lu Zhang
- College of Landscape Architecture, Zhejiang A&F University, Hangzhou, 311300, China.
| |
Collapse
|
8
|
Das S, Lizon F, Gevaert F, Bialais C, Duong G, Ouddane B, Souissi S. Assessing indicators of arsenic toxicity using variable fluorescence in a commercially valuable microalgae: Physiological and toxicological aspects. JOURNAL OF HAZARDOUS MATERIALS 2023; 452:131215. [PMID: 37001210 DOI: 10.1016/j.jhazmat.2023.131215] [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: 12/08/2022] [Revised: 02/17/2023] [Accepted: 03/13/2023] [Indexed: 05/03/2023]
Abstract
Indicators signaling Arsenic (As) stress through physiology of microalgae using non-destructive methods like variable fluorescence are rare but requisite. This study reports stress markers indicating arsenic (As) toxicity (in two concentrations 11.25 µg/L and 22.5 µg/L compared to a control) exposed to a microalga (Diacronema lutheri), using fast repetition rate fluorometry (FRRf). Growth and physiological parameters such as cell density, chl a and the maximum quantum yield Fv/Fm showed coherence and impeded after the exponential phase (day 9 - day 12) in As treatments compared to the control (p < 0.05). On contrary photo-physiological constants were elevated showing higher optical (aLHII) and functional [Sigma (σPSII)] absorption cross-section for the As treatments (p < 0.05) further implying the lack of biomass production yet an increase in light absorption. In addition, As exposure increased the energy dissipation by heat (NPQ-NSV) showing a strong relationship with the de-epoxidation ratio (DR) involving photoprotective pigments. Total As bioaccumulation by D. lutheri showed a strong affinity with Fe adsorption throughout the algal growth curve. This study suggests some prompt photo-physiological proxies signaling As contamination and endorsing its usefulness in risk assessments, given the high toxicity and ubiquitous presence of As in the ecosystem.
Collapse
Affiliation(s)
- Shagnika Das
- Univ. Lille, CNRS, Univ. Littoral Côte d'Opale, IRD, UMR 8187 - LOG - Laboratoire d'Océanologie et de Géosciences, Station marine de Wimereux, F-59000 Lille, France; Amity Institute of Marine Science and Technology, Amity Institute of Biotechnology, Amity University, Noida, UP, India.
| | - Fabrice Lizon
- Univ. Lille, CNRS, Univ. Littoral Côte d'Opale, IRD, UMR 8187 - LOG - Laboratoire d'Océanologie et de Géosciences, Station marine de Wimereux, F-59000 Lille, France
| | - François Gevaert
- Univ. Lille, CNRS, Univ. Littoral Côte d'Opale, IRD, UMR 8187 - LOG - Laboratoire d'Océanologie et de Géosciences, Station marine de Wimereux, F-59000 Lille, France
| | - Capucine Bialais
- Univ. Lille, CNRS, Univ. Littoral Côte d'Opale, IRD, UMR 8187 - LOG - Laboratoire d'Océanologie et de Géosciences, Station marine de Wimereux, F-59000 Lille, France
| | - Gwendoline Duong
- Univ. Lille, CNRS, Univ. Littoral Côte d'Opale, IRD, UMR 8187 - LOG - Laboratoire d'Océanologie et de Géosciences, Station marine de Wimereux, F-59000 Lille, France
| | - Baghdad Ouddane
- Univ. Lille, CNRS, UMR 8516 - LASIRE - Equipe Physico-chimie de l'Environnement, Bâtiment C8, F-59000 Lille, France
| | - Sami Souissi
- Univ. Lille, CNRS, Univ. Littoral Côte d'Opale, IRD, UMR 8187 - LOG - Laboratoire d'Océanologie et de Géosciences, Station marine de Wimereux, F-59000 Lille, France
| |
Collapse
|
9
|
Waheeda K, Kitchel H, Wang Q, Chiu PL. Molecular mechanism of Rubisco activase: Dynamic assembly and Rubisco remodeling. Front Mol Biosci 2023; 10:1125922. [PMID: 36845545 PMCID: PMC9951593 DOI: 10.3389/fmolb.2023.1125922] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 01/31/2023] [Indexed: 02/12/2023] Open
Abstract
Ribulose-1,5-bisphosphate (RuBP) carboxylase-oxygenase (Rubisco) enzyme is the limiting step of photosynthetic carbon fixation, and its activation is regulated by its co-evolved chaperone, Rubisco activase (Rca). Rca removes the intrinsic sugar phosphate inhibitors occupying the Rubisco active site, allowing RuBP to split into two 3-phosphoglycerate (3PGA) molecules. This review summarizes the evolution, structure, and function of Rca and describes the recent findings regarding the mechanistic model of Rubisco activation by Rca. New knowledge in these areas can significantly enhance crop engineering techniques used to improve crop productivity.
Collapse
Affiliation(s)
- Kazi Waheeda
- School of Molecular Sciences, Arizona State University, Tempe, AZ, United States,Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ, United States
| | - Heidi Kitchel
- School of Molecular Sciences, Arizona State University, Tempe, AZ, United States,Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ, United States
| | - Quan Wang
- Laboratory of Chemical Physics, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Po-Lin Chiu
- School of Molecular Sciences, Arizona State University, Tempe, AZ, United States,Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ, United States,*Correspondence: Po-Lin Chiu,
| |
Collapse
|
10
|
Zhang S, Tan X, Zhou Y, Liu N. Effects of a heavy metal (cadmium) on the responses of subtropical coastal tree species to drought stress. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:12682-12694. [PMID: 36114969 DOI: 10.1007/s11356-022-22696-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 08/19/2022] [Indexed: 06/15/2023]
Abstract
With global climate change and increased industrialization, drought and heavy metals have become common abiotic stress factors for coastal vegetation. In this study, we investigated the ecophysiological responses of the seedlings of three subtropical coastal tree species (Barringtonia racemosa, Hibiscus tiliaceus, and Terminalia neotaliala) to drought stress (D), cadmium addition (Cd), and their combined effects (Cd + D). The results showed that, for all three plant species, treatment D significantly decreased Amax, Y(II), qP, and ETR; increased the concentrations of PRO, soluble sugars, ABA, MDA, and O2-; and increased the activity of Rubisco. The concentrations of soluble sugars, MDA, and O2- were similar for treatments D and Cd; the only difference was that qP, Amax, and ETR values of B. racemosa and the Amax value of H. tiliaceus were significantly lower in treatment Cd than in control. The concentrations of PRO, soluble sugars, ABA, and MDA were significantly lower for treatment Cd + D than for treatment D. The O2- concentration was positively correlated with the concentrations of soluble sugars and PRO, indicating that osmoregulation was important for the responses of the plants to oxidative stress. ABA was positively correlated with MDA, indicating that ABA was involved in the response to oxidative stress. These results, which show that Cd may weaken the physiological responses of coastal plants to drought stress by increasing ABA accumulation, may provide guidance for coastal ecosystem management in South China.
Collapse
Affiliation(s)
- Shike Zhang
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, 510650, Guangzhou, China
- University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Xuan Tan
- College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Yuheng Zhou
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, 510650, Guangzhou, China
- University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Nan Liu
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, 510650, Guangzhou, China.
- College of Life Sciences, Gannan Normal University, 341000, Ganzhou, China.
| |
Collapse
|
11
|
Fang L, Martre P, Jin K, Du X, van der Putten PEL, Yin X, Struik PC. Neglecting acclimation of photosynthesis under drought can cause significant errors in predicting leaf photosynthesis in wheat. GLOBAL CHANGE BIOLOGY 2023; 29:505-521. [PMID: 36300859 PMCID: PMC10091787 DOI: 10.1111/gcb.16488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 09/14/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
Extreme climatic events, such as heat waves, cold snaps and drought spells, related to global climate change, have become more frequent and intense in recent years. Acclimation of plant physiological processes to changes in environmental conditions is a key component of plant adaptation to climate change. We assessed the temperature response of leaf photosynthetic parameters in wheat grown under contrasting water regimes and growth temperatures (Tgrowth ). Two independent experiments were conducted under controlled conditions. In Experiment 1, two wheat genotypes were subjected to well-watered or drought-stressed treatments; in Experiment 2, the two water regimes combined with high, medium and low Tgrowth were imposed on one genotype. Parameters of a biochemical C3 -photosynthesis model were estimated at six leaf temperatures for each factor combination. Photosynthesis acclimated more to drought than to Tgrowth . Drought affected photosynthesis by lowering its optimum temperature (Topt ) and the values at Topt of light-saturated net photosynthesis, stomatal conductance, mesophyll conductance, the maximum rate of electron transport (Jmax ) and the maximum rate of carboxylation by Rubisco (Vcmax ). Topt for Vcmax was up to 40°C under well-watered conditions but 24-34°C under drought. The decrease in photosynthesis under drought varied among Tgrowth but was similar between genotypes. The temperature response of photosynthetic quantum yield under drought was partly attributed to photorespiration but more to alternative electron transport. All these changes in biochemical parameters could not be fully explained by the changed leaf nitrogen content. Further model analysis showed that both diffusional and biochemical parameters of photosynthesis and their thermal sensitivity acclimate little to Tgrowth , but acclimate considerably to drought and the combination of drought and Tgrowth . The commonly used modelling approaches, which typically consider the response of diffusional parameters, but ignore acclimation responses of biochemical parameters to drought and Tgrowth , strongly overestimate leaf photosynthesis under variable temperature and drought.
Collapse
Affiliation(s)
- Liang Fang
- Department of Plant Sciences, Centre for Crop Systems AnalysisWageningen University and ResearchWageningenThe Netherlands
| | - Pierre Martre
- LEPSEUniv Montpellier, INRAE, Institut Agro MontpellierMontpellierFrance
| | - Kaining Jin
- Department of Plant Sciences, Centre for Crop Systems AnalysisWageningen University and ResearchWageningenThe Netherlands
| | - Xinmiao Du
- Department of Plant Sciences, Centre for Crop Systems AnalysisWageningen University and ResearchWageningenThe Netherlands
| | - Peter E. L. van der Putten
- Department of Plant Sciences, Centre for Crop Systems AnalysisWageningen University and ResearchWageningenThe Netherlands
| | - Xinyou Yin
- Department of Plant Sciences, Centre for Crop Systems AnalysisWageningen University and ResearchWageningenThe Netherlands
| | - Paul C. Struik
- Department of Plant Sciences, Centre for Crop Systems AnalysisWageningen University and ResearchWageningenThe Netherlands
| |
Collapse
|
12
|
Lal MK, Sharma N, Adavi SB, Sharma E, Altaf MA, Tiwari RK, Kumar R, Kumar A, Dey A, Paul V, Singh B, Singh MP. From source to sink: mechanistic insight of photoassimilates synthesis and partitioning under high temperature and elevated [CO 2]. PLANT MOLECULAR BIOLOGY 2022; 110:305-324. [PMID: 35610527 DOI: 10.1007/s11103-022-01274-9] [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: 12/31/2021] [Accepted: 04/10/2022] [Indexed: 05/27/2023]
Abstract
Photosynthesis is the vital metabolism of the plant affected by abiotic stress such as high temperature and elevated [CO2] levels, which ultimately affect the source-sink relationship. Triose phosphate, the primary precursor of carbohydrate (starch and sucrose) synthesis in the plant, depends on environmental cues. The synthesis of starch in the chloroplasts of leaves (during the day), the transport of photoassimilates (sucrose) from source to sink, the loading and unloading of photoassimilates, and the accumulation of starch in the sink tissue all require a highly regulated network and communication system within the plant. These processes might be affected by high-temperature stress and elevated [CO2] conditions. Generally, elevated [CO2] levels enhance plant growth, photosynthetic rate, starch synthesis, and accumulation, ultimately diluting the nutrient of sink tissues. On the contrary, high-temperature stress is detrimental to plant development affecting photosynthesis, starch synthesis, sucrose synthesis and transport, and photoassimilate accumulation in sink tissues. Moreover, these environmental conditions also negatively impact the quality attributes such as grain/tuber quality, cooking quality, nutritional status in the edible parts and organoleptic traits. In this review, we have attempted to provide an insight into the source-sink relationship and the sugar metabolites synthesized and utilized by the plant under elevated [CO2] and high-temperature stress. This review will help future researchers comprehend the source-sink process for crop growth under changing climate scenarios.
Collapse
Affiliation(s)
- Milan Kumar Lal
- ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
- ICAR-Central Potato Research Institute, Shimla, Himachal Pradesh, 171001, India
| | - Nitin Sharma
- ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
- Dr Yashwant, Singh Parmar University of Horticulture & Forestry, Nauni, Solan, Himachal Pradesh, 173230, India
| | - Sandeep B Adavi
- ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
| | - Eshita Sharma
- Dietetics & Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, 176061, India
- Department of Molecular Biology and Biochemistry, Guru Nanak Dev University, Amritsar, India
| | | | - Rahul Kumar Tiwari
- ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
- ICAR-Central Potato Research Institute, Shimla, Himachal Pradesh, 171001, India.
| | - Ravinder Kumar
- ICAR-Central Potato Research Institute, Shimla, Himachal Pradesh, 171001, India.
| | - Awadhesh Kumar
- ICAR-National Rice Research Institute, Cuttack, Odisha, 753006, India
| | - Abhijit Dey
- Department of Life Sciences, Presidency University, 86/1 College Street, Kolkata, West Bengal, 700073, India
| | - Vijay Paul
- ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
| | - Brajesh Singh
- ICAR-Central Potato Research Institute, Shimla, Himachal Pradesh, 171001, India
| | - Madan Pal Singh
- ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
| |
Collapse
|
13
|
Xu Y, Feng Z, Peng J, Tarvainen L. Elevated ozone decreases the activity of Rubisco in poplar but not its activation under fluctuating light. TREE PHYSIOLOGY 2022; 42:1762-1775. [PMID: 35445727 DOI: 10.1093/treephys/tpac043] [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: 10/09/2021] [Accepted: 04/04/2022] [Indexed: 06/14/2023]
Abstract
Increasing tropospheric ozone (O3) is well-known to decrease leaf photosynthesis under steady-state light through reductions in biochemical capacity. However, the effects of O3 on photosynthetic induction and its biochemical limitations in response to fluctuating light remain unclear, despite the rapid fluctuations of light intensity occurring under field conditions. In this study, two hybrid poplar clones with different O3 sensitivities were exposed to elevated O3. Dynamic photosynthetic CO2 response measurements were conducted to quantify the impact of elevated O3 and exposure duration on biochemical limitations during photosynthetic induction. We found that elevated O3 significantly reduced the steady-state light-saturated photosynthetic rate, the maximum rate of carboxylation (Vcmax) and Rubisco content. In addition, elevated O3 significantly decreased the time constants for slow phases and weighting of the fast phase of the Vcmax induction in poplar clone '546' but not in clone '107'. However, elevated O3 did not affect the time, it took to reach a given percentage of full Vcmax activation or photosynthetic induction in either clone. Overall, photosynthetic induction was primarily limited by the activity of Rubisco rather than the regeneration of ribulose-1,5-biphosphate regardless of O3 concentration and exposure duration. The lack of O3-induced effects on the activation of Rubisco observed here would simplify the simulation of impacts of O3 on nonsteady-state photosynthesis in dynamic photosynthetic models.
Collapse
Affiliation(s)
- Yansen Xu
- School of Applied Meteorology, Nanjing University of Information Science & Technology, Pukou, Nanjing 210044, China
| | - Zhaozhong Feng
- School of Applied Meteorology, Nanjing University of Information Science & Technology, Pukou, Nanjing 210044, China
| | - Jinlong Peng
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Chaoyang, Beijing 100101, China
| | - Lasse Tarvainen
- Department of Biological and Environmental Sciences, University of Gothenburg, PO Box 461, Gothenburg SE-405 30, Sweden
| |
Collapse
|
14
|
Photosynthetic Responses, Growth, Production, and Tolerance of Traditional Varieties of Cowpea under Salt Stress. PLANTS 2022; 11:plants11141863. [PMID: 35890497 PMCID: PMC9320130 DOI: 10.3390/plants11141863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/06/2022] [Accepted: 07/06/2022] [Indexed: 11/16/2022]
Abstract
Highlights Abstract Cowpea is the main subsistence crop—protein source—for the Brazilian semi-arid region. The use of salt-stress-tolerant varieties can improve crop yields. We evaluated the effect of irrigation with brackish water on the growth, photosynthetic responses, production, and tolerance of fifteen traditional varieties of cowpea. The experiment was conducted in randomized blocks, in a 15 × 2 factorial scheme, composed of 15 traditional varieties of cowpea and two salinity levels of irrigation water (0.5 and 4.5 dS m−1), with five replicates. Plants were grown in pots containing 10 dm3 of soil for 80 days. The reduction in the photosynthetic rate of cowpea varieties occurs mainly due to the decrease in stomatal conductance caused by salt stress. Salt stress increased the electron transport rate and photochemical quenching of cowpea varieties, but stress-tolerant varieties increased the CO2 assimilation rate and instantaneous carboxylation efficiency. The Ceará, Costela de Vaca, Pingo de Ouro, Ovo de Peru, and Sempre Verde varieties are tolerant to salt stress. Salt stress decreases 26% of the production of tolerant varieties to salt stress and 54% of susceptible varieties. The present findings show the existence of variability for saline stress tolerance in traditional varieties of cowpea and that Ceará, Costela de Vaca, Pingo de Ouro, and Ovo de Peru varieties are more suitable for crops irrigated with saline water.
Collapse
|
15
|
Chen Y, Chu C, He F, Fang S. A mechanistic model for nitrogen-limited plant growth. ANNALS OF BOTANY 2022; 129:583-592. [PMID: 35136940 PMCID: PMC9007093 DOI: 10.1093/aob/mcac018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 02/06/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND AND AIMS Nitrogen is often regarded as a limiting factor to plant growth in various ecosystems. Understanding how nitrogen drives plant growth has numerous theoretical and practical applications in agriculture and ecology. In 2004, Göran I. Ågren proposed a mechanistic model of plant growth from a biochemical perspective. However, neglecting respiration and assuming stable and balanced growth made the model unrealistic for plants growing in natural conditions. The aim of the present paper is to extend Ågren's model to overcome these limitations. METHODS We improved Ågren's model by incorporating the respiratory process and replacing the stable and balanced growth assumption with a three-parameter power function to describe the relationship between nitrogen concentration (Nc) and biomass. The new model was evaluated based on published data from three studies on corn (Zea mays) growth. KEY RESULTS Remarkably, the mechanistic growth model derived in this study is mathematically equivalent to the classical Richards model, which is the most widely used empirical growth model. The model agrees well with empirical plant growth data. CONCLUSIONS Our model provides a mechanistic interpretation of how nitrogen drives plant growth. It is very robust in predicting growth curves and the relationship between Nc and relative growth rate.
Collapse
Affiliation(s)
- Yongfa Chen
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Chengjin Chu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Fangliang He
- Department of Renewable Resources, University of Alberta, Edmonton, AB, T6G 2H1, Canada
| | - Suqin Fang
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| |
Collapse
|
16
|
Navarro-León E, Paradisone V, López-Moreno FJ, Rios JJ, Esposito S, Blasco B. Effect of CAX1a TILLING mutations on photosynthesis performance in salt-stressed Brassica rapa plants. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2021; 311:111013. [PMID: 34482916 DOI: 10.1016/j.plantsci.2021.111013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 07/25/2021] [Accepted: 08/02/2021] [Indexed: 06/13/2023]
Abstract
Salinity is an important environmental factor that reduces plant productivity in many world regions. It affects negatively photosynthesis causing a growth reduction. Likewise, calcium (Ca2+) is crucial in plant stress response. Therefore, the modification of Ca2+ cation exchangers (CAX) transporters could be a potential strategy to increase plant tolerance to salinity. Using Targeting Induced Local Lesions in Genomes (TILLING), researchers generated three mutants of Brassica rapa CAX1a transporter: BraA.cax1a-7, BraA.cax1a-4, and BraA.cax1a-12. The aim of this study was to test the effect of those mutations on salt tolerance focusing on the response to the photosynthesis process. Thus, the three BraA.cax1a mutants and the parental line (R-o-18) were grown under salinity conditions, and parameters related to biomass, photosynthesis performance, glucose-6-phosphate dehydrogenase (G6PDH, EC 1.1.1.49), and soluble carbohydrates were measured. BraA.cax1a-4 provided higher biomass and a better photosynthetic performance manifested by higher water use efficiency (WUE), Fv/Fm, electron fluxes, and Rubisco (EC 4.1.1.39) values. In addition, BraA.cax1a-4 presented increased osmotic protection through myo-inositol accumulation. On the other hand, BraA.cax1a-7 produced some negative effects on photosynthesis performance and lower G6PDH and Rubisco accumulations. Therefore, this study points out BraA.cax1a-4 as a useful mutation to improve photosynthetic performance in plants grown under saline conditions.
Collapse
Affiliation(s)
- Eloy Navarro-León
- Department of Plant Physiology, Faculty of Sciences, University of Granada, 18071, Granada, Spain.
| | - Valeria Paradisone
- Dipartimento di Biologia, Università di Napoli "Federico II", Complesso Universitario di Monte Sant'Angelo, Via Cinthia, 80126, Napoli, Italy.
| | | | - Juan José Rios
- Department of Plant Physiology, Faculty of Sciences, University of Granada, 18071, Granada, Spain.
| | - Sergio Esposito
- Dipartimento di Biologia, Università di Napoli "Federico II", Complesso Universitario di Monte Sant'Angelo, Via Cinthia, 80126, Napoli, Italy.
| | - Begoña Blasco
- Department of Plant Physiology, Faculty of Sciences, University of Granada, 18071, Granada, Spain.
| |
Collapse
|
17
|
Six C, Ratin M, Marie D, Corre E. Marine Synechococcus picocyanobacteria: Light utilization across latitudes. Proc Natl Acad Sci U S A 2021; 118:e2111300118. [PMID: 34518213 PMCID: PMC8463805 DOI: 10.1073/pnas.2111300118] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/03/2021] [Indexed: 02/08/2023] Open
Abstract
The most ubiquitous cyanobacteria, Synechococcus, have colonized different marine thermal niches through the evolutionary specialization of lineages adapted to different ranges of temperature seawater. We used the strains of Synechococcus temperature ecotypes to study how light utilization has evolved in the function of temperature. The tropical Synechococcus (clade II) was unable to grow under 16 °C but, at temperatures >25 °C, induced very high growth rates that relied on a strong synthesis of the components of the photosynthetic machinery, leading to a large increase in photosystem cross-section and electron flux. By contrast, the Synechococcus adapted to subpolar habitats (clade I) grew more slowly but was able to cope with temperatures <10 °C. We show that growth at such temperatures was accompanied by a large increase of the photoprotection capacities using the orange carotenoid protein (OCP). Metagenomic analyzes revealed that Synechococcus natural communities show the highest prevalence of the ocp genes in low-temperature niches, whereas most tropical clade II Synechococcus have lost the gene. Moreover, bioinformatic analyzes suggested that the OCP variants of the two cold-adapted Synechococcus clades I and IV have undergone evolutionary convergence through the adaptation of the molecular flexibility. Our study points to an important role of temperature in the evolution of the OCP. We, furthermore, discuss the implications of the different metabolic cost of these physiological strategies on the competitiveness of Synechococcus in a warming ocean. This study can help improve the current hypotheses and models aimed at predicting the changes in ocean carbon fluxes in response to global warming.
Collapse
Affiliation(s)
- Christophe Six
- Centre National de la Recherche Scientifique, Sorbonne Université, UMR 7144, Adaptation et Diversité en Milieu Marin, group Ecology of Marine Plankton, Station Biologique de Roscoff, 29680 Roscoff, France;
| | - Morgane Ratin
- Centre National de la Recherche Scientifique, Sorbonne Université, UMR 7144, Adaptation et Diversité en Milieu Marin, group Ecology of Marine Plankton, Station Biologique de Roscoff, 29680 Roscoff, France
| | - Dominique Marie
- Centre National de la Recherche Scientifique, Sorbonne Université, UMR 7144, Adaptation et Diversité en Milieu Marin, group Ecology of Marine Plankton, Station Biologique de Roscoff, 29680 Roscoff, France
| | - Erwan Corre
- Department Analysis and Bioinformatics for Marine Science, Fédération de Recherche 2424, 29680 Roscoff, France
| |
Collapse
|
18
|
Rillema R, Hoang Y, MacCready JS, Vecchiarelli AG. Carboxysome Mispositioning Alters Growth, Morphology, and Rubisco Level of the Cyanobacterium Synechococcus elongatus PCC 7942. mBio 2021; 12:e0269620. [PMID: 34340540 PMCID: PMC8406218 DOI: 10.1128/mbio.02696-20] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 07/01/2021] [Indexed: 12/23/2022] Open
Abstract
Cyanobacteria are the prokaryotic group of phytoplankton responsible for a significant fraction of global CO2 fixation. Like plants, cyanobacteria use the enzyme ribulose 1,5-bisphosphate carboxylase/oxidase (Rubisco) to fix CO2 into organic carbon molecules via the Calvin-Benson-Bassham cycle. Unlike plants, cyanobacteria evolved a carbon-concentrating organelle called the carboxysome-a proteinaceous compartment that encapsulates and concentrates Rubisco along with its CO2 substrate. In the rod-shaped cyanobacterium Synechococcus elongatus PCC 7942, we recently identified the McdAB system responsible for uniformly distributing carboxysomes along the cell length. It remains unknown what role carboxysome positioning plays with respect to cellular physiology. Here, we show that a failure to distribute carboxysomes leads to slower cell growth, cell elongation, asymmetric cell division, and elevated levels of cellular Rubisco. Unexpectedly, we also report that even wild-type S. elongatus undergoes cell elongation and asymmetric cell division when grown at the cool, but environmentally relevant, growth temperature of 20°C or when switched from a high- to ambient-CO2 environment. The findings suggest that carboxysome positioning by the McdAB system functions to maintain the carbon fixation efficiency of Rubisco by preventing carboxysome aggregation, which is particularly important under growth conditions where rod-shaped cyanobacteria adopt a filamentous morphology. IMPORTANCE Photosynthetic cyanobacteria are responsible for almost half of global CO2 fixation. Due to eutrophication, rising temperatures, and increasing atmospheric CO2 concentrations, cyanobacteria have gained notoriety for their ability to form massive blooms in both freshwater and marine ecosystems across the globe. Like plants, cyanobacteria use the most abundant enzyme on Earth, Rubisco, to provide the sole source of organic carbon required for its photosynthetic growth. Unlike plants, cyanobacteria have evolved a carbon-concentrating organelle called the carboxysome that encapsulates and concentrates Rubisco with its CO2 substrate to significantly increase carbon fixation efficiency and cell growth. We recently identified the positioning system that distributes carboxysomes in cyanobacteria. However, the physiological consequence of carboxysome mispositioning in the absence of this distribution system remains unknown. Here, we find that carboxysome mispositioning triggers changes in cell growth and morphology as well as elevated levels of cellular Rubisco.
Collapse
Affiliation(s)
- Rees Rillema
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, Michigan, USA
| | - Y Hoang
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, Michigan, USA
| | - Joshua S. MacCready
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, Michigan, USA
| | - Anthony G. Vecchiarelli
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, Michigan, USA
| |
Collapse
|
19
|
Combined Proteomic and Physiological Analysis of Chloroplasts Reveals Drought and Recovery Response Mechanisms in Nicotiana benthamiana. PLANTS 2021; 10:plants10061127. [PMID: 34199332 PMCID: PMC8228571 DOI: 10.3390/plants10061127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/08/2021] [Accepted: 05/11/2021] [Indexed: 11/17/2022]
Abstract
Chloroplasts play essential roles in plant metabolic processes and stress responses by functioning as environmental sensors. Understanding chloroplast responses to drought stress and subsequent recovery will help the ability to improve stress tolerance in plants. Here, a combined proteomic and physiological approach was used to investigate the response mechanisms of Nicotiana benthamiana chloroplasts to drought stress and subsequent recovery. Early in the stress response, changes in stomatal movement were accompanied by immediate changes in protein synthesis to sustain the photosynthetic process. Thereafter, increasing drought stress seriously affected photosynthetic efficiency and led to altered expression of photosynthesis- and carbon-fixation-related proteins to protect the plants against photo-oxidative damage. Additional repair mechanisms were activated at the early stage of recovery to restore physiological functions and repair drought-induced damages, even while the negative effects of drought stress were still ongoing. Prolonging the re-watering period led to the gradual recovery of photosynthesis at both physiological and protein levels, indicating that a long repair process is required to restore plant function. Our findings provide a precise view of drought and recovery response mechanisms in N. benthamiana and serve as a reference for further investigation into the physiological and molecular mechanisms underlying plant drought tolerance.
Collapse
|
20
|
Salvi AM, Smith DD, Adams MA, McCulloh KA, Givnish TJ. Mesophyll photosynthetic sensitivity to leaf water potential in Eucalyptus: a new dimension of plant adaptation to native moisture supply. THE NEW PHYTOLOGIST 2021; 230:1844-1855. [PMID: 33630331 DOI: 10.1111/nph.17304] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 02/11/2021] [Indexed: 06/12/2023]
Abstract
Photosynthetic sensitivity to drought is a fundamental constraint on land-plant evolution and ecosystem function. However, little is known about how the sensitivity of photosynthesis to nonstomatal limitations varies among species in the context of phylogenetic relationships. Using saplings of 10 Eucalyptus species, we measured maximum CO2 -saturated photosynthesis using A-ci curves at several different leaf water potentials (ψleaf ) to quantify mesophyll photosynthetic sensitivity to ψleaf (MPS), a measure of how rapidly nonstomatal limitations to carbon uptake increase with declining ψleaf . MPS was compared to the macroclimatic moisture availability of the species' native habitats, while accounting for phylogenetic relationships. We found that species native to mesic habitats have greater MPS but higher maximum photosynthetic rates during non-water-stressed conditions, revealing a trade-off between maximum photosynthesis and drought sensitivity. Species with lower turgor loss points have lower MPS, indicating coordination among photosynthetic and water-relations traits. By accounting for phylogenetic relationships among closely related species, we provide the first compelling evidence that MPS in Eucalyptus evolved in an adaptive fashion with climatically determined moisture availability, opening the way for further study of this poorly explored dimension of plant adaptation to drought.
Collapse
Affiliation(s)
- Amanda M Salvi
- Department of Botany, University of Wisconsin-Madison, Madison, WI, 53705, USA
| | - Duncan D Smith
- Department of Botany, University of Wisconsin-Madison, Madison, WI, 53705, USA
- School of Ecosystem and Forest Sciences, University of Melbourne, Creswick, Vic., 3363, Australia
- Swinburne University of Technology, John Street, Hawthorn, Vic., 3122, Australia
| | - Mark A Adams
- Swinburne University of Technology, John Street, Hawthorn, Vic., 3122, Australia
| | | | - Thomas J Givnish
- Department of Botany, University of Wisconsin-Madison, Madison, WI, 53705, USA
| |
Collapse
|
21
|
Correia PMP, da Silva AB, Roitsch T, Carmo-Silva E, Marques da Silva J. Photoprotection and optimization of sucrose usage contribute to faster recovery of photosynthesis after water deficit at high temperatures in wheat. PHYSIOLOGIA PLANTARUM 2021; 172:615-628. [PMID: 33010044 DOI: 10.1111/ppl.13227] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 09/22/2020] [Accepted: 09/29/2020] [Indexed: 06/11/2023]
Abstract
Plants are increasingly exposed to events of elevated temperature and water deficit, which threaten crop productivity. Understanding the ability to rapidly recover from abiotic stress, restoring carbon assimilation and biomass production, is important to unravel crop climate resilience. This study compared the photosynthetic performance of two Triticum aestivum L. cultivars, Sokoll and Paragon, adapted to the climate of Mexico and UK, respectively, exposed to 1-week water deficit and high temperatures, in isolation or combination. Measurements included photosynthetic assimilation rate, stomatal conductance, in vitro activities of Rubisco (EC 4.1.1.39) and invertase (INV, EC 3.2.1.26), antioxidant capacity and chlorophyll a fluorescence. In both genotypes, under elevated temperatures and water deficit (WD38°C), the photosynthetic limitations were mainly due to stomatal restrictions and to a decrease in the electron transport rate. Chlorophyll a fluorescence parameters clearly indicate differences between the two genotypes in the photoprotection when subjected to WD38°C and showed faster recovery of Paragon after stress relief. The activity of the cytosolic invertase (CytINV) under these stress conditions was strongly related to the fast photosynthesis recovery of Paragon. Taken together, the results suggest that optimal sucrose export/utilization and increased photoprotection of the electron transport machinery are important components to limit yield fluctuations due to water shortage and elevated temperatures.
Collapse
Affiliation(s)
- Pedro M P Correia
- BioISI-Biosystems and Integrative Sciences Institute, Faculdade de Ciências da Universidade de Lisboa, Lisbon, Portugal
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
| | - Anabela B da Silva
- BioISI-Biosystems and Integrative Sciences Institute, Faculdade de Ciências da Universidade de Lisboa, Lisbon, Portugal
| | - Thomas Roitsch
- Department of Plant and Environmental Sciences, Section of Crop Science, Copenhagen University, Copenhagen, Denmark
- Department of Adaptive Biotechnologies, Global Change Research Institute, CAS, Brno, Czech Republic
| | | | - Jorge Marques da Silva
- BioISI-Biosystems and Integrative Sciences Institute, Faculdade de Ciências da Universidade de Lisboa, Lisbon, Portugal
| |
Collapse
|
22
|
Semedo JN, Rodrigues AP, Lidon FC, Pais IP, Marques I, Gouveia D, Armengaud J, Silva MJ, Martins S, Semedo MC, Dubberstein D, Partelli FL, Reboredo FH, Scotti-Campos P, Ribeiro-Barros AI, DaMatta FM, Ramalho JC. Intrinsic non-stomatal resilience to drought of the photosynthetic apparatus in Coffea spp. is strengthened by elevated air [CO2]. TREE PHYSIOLOGY 2021; 41:708-727. [PMID: 33215189 DOI: 10.1093/treephys/tpaa158] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Accepted: 11/11/2020] [Indexed: 05/10/2023]
Abstract
Growing water restrictions associated with climate changes constitute daunting challenges to crop performance. This study unveils the impacts of moderate (MWD) or severe (SWD) water deficit, and their interaction with air [CO2], on the photosynthetic apparatus of Coffea canephora Pierre ex A. Froehner cv. Conilon Clone 153 (CL153) and Coffea arabica L. cv. Icatu. Seven year-old potted plants grown under 380 (aCO2) or 700 μl l -1 (eCO2) [CO2] gradually reached predawn water potentials between -1.6 and -2.1 MPa (MWD), and below -3.5 MPa (SWD). Under drought, stomata closure was chiefly related to abscisic acid (ABA) rise. Increasing drought severity progressively affected gas exchange and fluorescence parameters in both genotypes, with non-stomatal limitations becoming gradually dominating, especially regarding the photochemical and biochemical components of CL153 SWD plants. In contrast, Icatu plants were highly tolerant to SWD, with minor, if any, negative impacts on the potential photosynthetic functioning and components (e.g., Amax, Fv/Fm, electron carriers, photosystems (PSs) and ribulose-1,5-bisphosphate carboxylase oxygenase (RuBisCO) activities). Besides, drought-stressed Icatu plants displayed increased abundance of a large set of proteins associated with the photosynthetic apparatus (PSs, light-harvesting complexes, cyclic electron flow, RuBisCO activase) regardless of [CO2]. Single eCO2 did not promote stomatal and photosynthetic down-regulation in both genotypes. Instead, eCO2 increased photosynthetic performance, moderately reinforced photochemical (PSs activity, electron carriers) and biochemical (RuBisCO, ribulose-5-phosphate kinase) components, whereas photoprotective mechanisms and protein abundance remained mostly unaffected. In both genotypes, under MWD, eCO2 superimposition delayed stress severity and promoted photosynthetic functioning with lower energy dissipation and PSII impacts, whereas stomatal closure was decoupled from increases in ABA. In SWD plants, most impacts on the photosynthetic performance were reduced by eCO2, especially in the moderately drought affected CL153 genotype, although maintaining RuBisCO as the most sensitive component, deserving special breeder's attention to improve coffee sustainability under future climate scenarios.
Collapse
Affiliation(s)
- José N Semedo
- Unidade de Investigação em Biotecnologia e Recursos Genéticos, Instituto Nacional de Investigação Agrária e Veterinária, I.P. (INIAV), Qta. Marquês, Av. República, Oeiras 2784-505, Portugal
- Unidade de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia (FCT), Universidade NOVA de Lisboa (UNL), Monte de Caparica, Caparica 2829-516, Portugal
| | - Ana P Rodrigues
- Plant Stress and Biodiversity Lab, Centro de Estudos Florestais (CEF), Instituto Superior Agronomia (ISA), Universidade de Lisboa (ULisboa), Quinta do Marquês, Av. República, Oeiras 2784-505, Portugal
- Plant Stress and Biodiversity Lab, Centro de Estudos Florestais (CEF), Instituto Superior Agronomia (ISA), Universidade de Lisboa (ULisboa), Tapada da Ajuda, Lisboa 1349-017, Portugal
| | - Fernando C Lidon
- Unidade de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia (FCT), Universidade NOVA de Lisboa (UNL), Monte de Caparica, Caparica 2829-516, Portugal
| | - Isabel P Pais
- Unidade de Investigação em Biotecnologia e Recursos Genéticos, Instituto Nacional de Investigação Agrária e Veterinária, I.P. (INIAV), Qta. Marquês, Av. República, Oeiras 2784-505, Portugal
- Unidade de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia (FCT), Universidade NOVA de Lisboa (UNL), Monte de Caparica, Caparica 2829-516, Portugal
| | - Isabel Marques
- Plant Stress and Biodiversity Lab, Centro de Estudos Florestais (CEF), Instituto Superior Agronomia (ISA), Universidade de Lisboa (ULisboa), Quinta do Marquês, Av. República, Oeiras 2784-505, Portugal
- Plant Stress and Biodiversity Lab, Centro de Estudos Florestais (CEF), Instituto Superior Agronomia (ISA), Universidade de Lisboa (ULisboa), Tapada da Ajuda, Lisboa 1349-017, Portugal
| | - Duarte Gouveia
- CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI, Université Paris Saclay, Bagnols-sur-Cèze F-F-30200, France
| | - Jean Armengaud
- CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI, Université Paris Saclay, Bagnols-sur-Cèze F-F-30200, France
| | - Maria J Silva
- Unidade de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia (FCT), Universidade NOVA de Lisboa (UNL), Monte de Caparica, Caparica 2829-516, Portugal
- Plant Stress and Biodiversity Lab, Centro de Estudos Florestais (CEF), Instituto Superior Agronomia (ISA), Universidade de Lisboa (ULisboa), Quinta do Marquês, Av. República, Oeiras 2784-505, Portugal
- Plant Stress and Biodiversity Lab, Centro de Estudos Florestais (CEF), Instituto Superior Agronomia (ISA), Universidade de Lisboa (ULisboa), Tapada da Ajuda, Lisboa 1349-017, Portugal
| | - Sónia Martins
- Unidade de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia (FCT), Universidade NOVA de Lisboa (UNL), Monte de Caparica, Caparica 2829-516, Portugal
- Área Departamental de Engenharia Química, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, R. Conselheiro Emídio Navarro 1, Lisboa 1959-007, Portugal
| | - Magda C Semedo
- Unidade de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia (FCT), Universidade NOVA de Lisboa (UNL), Monte de Caparica, Caparica 2829-516, Portugal
- Área Departamental de Engenharia Química, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, R. Conselheiro Emídio Navarro 1, Lisboa 1959-007, Portugal
| | - Danielly Dubberstein
- Plant Stress and Biodiversity Lab, Centro de Estudos Florestais (CEF), Instituto Superior Agronomia (ISA), Universidade de Lisboa (ULisboa), Quinta do Marquês, Av. República, Oeiras 2784-505, Portugal
- Departamento de Ciências Agrárias e Biológicas (DCAB), Centro Universitário do Norte do Espírito Santo (CEUNES), Universidade Federal Espírito Santo (UFES), Rod. BR 101 Norte, Km. 60, Bairro Litorâneo, São Mateu-ES, CEP 29932-540, Brazil
| | - Fábio L Partelli
- Departamento de Ciências Agrárias e Biológicas (DCAB), Centro Universitário do Norte do Espírito Santo (CEUNES), Universidade Federal Espírito Santo (UFES), Rod. BR 101 Norte, Km. 60, Bairro Litorâneo, São Mateu-ES, CEP 29932-540, Brazil
| | - Fernando H Reboredo
- Unidade de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia (FCT), Universidade NOVA de Lisboa (UNL), Monte de Caparica, Caparica 2829-516, Portugal
| | - Paula Scotti-Campos
- Unidade de Investigação em Biotecnologia e Recursos Genéticos, Instituto Nacional de Investigação Agrária e Veterinária, I.P. (INIAV), Qta. Marquês, Av. República, Oeiras 2784-505, Portugal
- Unidade de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia (FCT), Universidade NOVA de Lisboa (UNL), Monte de Caparica, Caparica 2829-516, Portugal
| | - Ana I Ribeiro-Barros
- Unidade de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia (FCT), Universidade NOVA de Lisboa (UNL), Monte de Caparica, Caparica 2829-516, Portugal
- Plant Stress and Biodiversity Lab, Centro de Estudos Florestais (CEF), Instituto Superior Agronomia (ISA), Universidade de Lisboa (ULisboa), Quinta do Marquês, Av. República, Oeiras 2784-505, Portugal
- Plant Stress and Biodiversity Lab, Centro de Estudos Florestais (CEF), Instituto Superior Agronomia (ISA), Universidade de Lisboa (ULisboa), Tapada da Ajuda, Lisboa 1349-017, Portugal
| | - Fábio M DaMatta
- Departamento de Biologia Vegetal, Universidade Federal Viçosa, Viçosa, MG 36570-900, Brazil
| | - José C Ramalho
- Unidade de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia (FCT), Universidade NOVA de Lisboa (UNL), Monte de Caparica, Caparica 2829-516, Portugal
- Plant Stress and Biodiversity Lab, Centro de Estudos Florestais (CEF), Instituto Superior Agronomia (ISA), Universidade de Lisboa (ULisboa), Quinta do Marquês, Av. República, Oeiras 2784-505, Portugal
- Plant Stress and Biodiversity Lab, Centro de Estudos Florestais (CEF), Instituto Superior Agronomia (ISA), Universidade de Lisboa (ULisboa), Tapada da Ajuda, Lisboa 1349-017, Portugal
| |
Collapse
|
23
|
Lauriks F, Salomón RL, Steppe K. Temporal variability in tree responses to elevated atmospheric CO 2. PLANT, CELL & ENVIRONMENT 2021; 44:1292-1310. [PMID: 33368341 DOI: 10.1111/pce.13986] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 12/18/2020] [Accepted: 12/18/2020] [Indexed: 06/12/2023]
Abstract
At leaf level, elevated atmospheric CO2 concentration (eCO2 ) results in stimulation of carbon net assimilation and reduction of stomatal conductance. However, a comprehensive understanding of the impact of eCO2 at larger temporal (seasonal and annual) and spatial (from leaf to whole-tree) scales is still lacking. Here, we review overall trends, magnitude and drivers of dynamic tree responses to eCO2 , including carbon and water relations at the leaf and the whole-tree level. Spring and early season leaf responses are most susceptible to eCO2 and are followed by a down-regulation towards the onset of autumn. At the whole-tree level, CO2 fertilization causes consistent biomass increments in young seedlings only, whereas mature trees show a variable response. Elevated CO2 -induced reductions in leaf stomatal conductance do not systematically translate into limitation of whole-tree transpiration due to the unpredictable response of canopy area. Reduction in the end-of-season carbon sink demand and water-limiting strategies are considered the main drivers of seasonal tree responses to eCO2 . These large temporal and spatial variabilities in tree responses to eCO2 highlight the risk of predicting tree behavior to eCO2 based on single leaf-level point measurements as they only reveal snapshots of the dynamic responses to eCO2 .
Collapse
Affiliation(s)
- Fran Lauriks
- Laboratory of Plant Ecology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Roberto Luis Salomón
- Laboratory of Plant Ecology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
- Department of Natural Resources and Systems, Universidad Politécnica de Madrid (UPM), Madrid, Spain
| | - Kathy Steppe
- Laboratory of Plant Ecology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| |
Collapse
|
24
|
Yang G, Luo Y, Sun L, Cao M, Luo J. Influence of elevated atmospheric CO 2 levels on phytoremediation effect of Festuca arundinacea intercropped with Echinochloa caudata. CHEMOSPHERE 2021; 270:128654. [PMID: 33268095 DOI: 10.1016/j.chemosphere.2020.128654] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 10/12/2020] [Accepted: 10/15/2020] [Indexed: 06/12/2023]
Abstract
Atmospheric CO2 levels have been increasing with increasing industrialization. Studies have shown the growth response of various plant species to climate change and increasing CO2 levels, but variations in phytoremediation caused by elevated CO2 levels, especially in intercropping systems, have rarely been reported. The current study therefore revealed variations in the phytoremediation effect of Festuca arundinacea intercropped with Echinochloa caudata, a pernicious annual weed, exposed to various CO2 levels (280, 400, and 550 ppm). The biomass yield and Cd uptake capacity of monocultured F. arundinacea were found to increase with increasing atmospheric CO2 level, highlighting the promoted phytoremediation efficiency of this species under elevated CO2 levels. Elevated CO2 levels also significantly increased the dry weight of monocultured E. caudata but did not change the Cd content in various parts of the plant. However, the intercropping system decreased the biomass yield of belowground and aerial parts of F. arundinacea under all treatments, since E. caudata competed with it for water and nutrients. The weight reduction of F. arundinacea in the intercropping system increased with increasing CO2 level, because elevated CO2 significantly increased the competitiveness of the weed. Therefore, the Cd phytoremediation efficiency of F. arundinacea intercropped with E. caudata exposed to 280, 400, and 550 ppm CO2 decreased by 46.1%, 81.5%, and 215.0%, respectively, as evidenced by the decreased dry weight of F. arundinacea. Therefore, elevated CO2 levels could decrease the phytoremediation effect of F. arundinacea in fields where weed growth is unavoidable.
Collapse
Affiliation(s)
- Ge Yang
- Key Laboratory of Exploration Technologies for Oil and Gas Resources, Ministry of Education, Yangtze University, Wuhan, China
| | - Yuting Luo
- Key Laboratory of Exploration Technologies for Oil and Gas Resources, Ministry of Education, Yangtze University, Wuhan, China
| | - Lin Sun
- Key Laboratory of Exploration Technologies for Oil and Gas Resources, Ministry of Education, Yangtze University, Wuhan, China
| | - Min Cao
- University of Leicester, University Road, Leicester, LE1 7RH, United Kingdom
| | - Jie Luo
- Key Laboratory of Exploration Technologies for Oil and Gas Resources, Ministry of Education, Yangtze University, Wuhan, China.
| |
Collapse
|
25
|
Advances in Wheat Physiology in Response to Drought and the Role of Plant Growth Promoting Rhizobacteria to Trigger Drought Tolerance. Microorganisms 2021; 9:microorganisms9040687. [PMID: 33810405 PMCID: PMC8066330 DOI: 10.3390/microorganisms9040687] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 03/20/2021] [Accepted: 03/22/2021] [Indexed: 11/17/2022] Open
Abstract
In the coming century, climate change and the increasing human population are likely leading agriculture to face multiple challenges. Agricultural production has to increase while preserving natural resources and protecting the environment. Drought is one of the major abiotic problems, which limits the growth and productivity of crops and impacts 1–3% of all land.To cope with unfavorable water-deficit conditions, plants use through sophisticated and complex mechanisms that help to perceive the stress signal and enable optimal crop yield are required. Among crop production, wheat is estimated to feed about one-fifth of humanity, but faces more and more drought stress periods, partially due to climate change. Plant growth promoting rhizobacteria are a promising and interesting way to develop productive and sustainable agriculture despite environmental stress. The current review focuses on drought stress effects on wheat and how plant growth-promoting rhizobacteria trigger drought stress tolerance of wheat by highlighting several mechanisms. These bacteria can lead to better growth and higher yield through the production of phytohormones, osmolytes, antioxidants, volatile compounds, exopolysaccharides and 1-aminocyclopropane-1-carboxylate deaminase. Based on the available literature, we provide a comprehensive review of mechanisms involved in drought resilience and how bacteria may alleviate this constraint
Collapse
|
26
|
Qu D, Miao X. Carbon flow conversion induces alkali resistance and lipid accumulation under alkaline conditions based on transcriptome analysis in Chlorella sp. BLD. CHEMOSPHERE 2021; 265:129046. [PMID: 33261840 DOI: 10.1016/j.chemosphere.2020.129046] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 11/12/2020] [Accepted: 11/17/2020] [Indexed: 06/12/2023]
Abstract
Alkaline environments are abundant globally and cause damage to most organisms, while some microalgae can grow well and accumulate lipids under those conditions. Here the mechanisms of alkali resistance and lipid accumulation in the alkaliphilic microalgae Chlorella sp. BLD were explored using physiological-biochemical and transcriptome analysis. When cultivated at alkaline pH, Chlorella sp. BLD exhibited good alkali-resistance ability and increased biomass (0.97 g L-1). The biochemical composition of Chlorella sp. BLD changed significantly (lipid content increased 39% and protein content decreased 19.5%) compared with pH 7.5. Through transcriptome analysis, we found that pathways related to carbon metabolism such as photosynthesis, glycolysis, and the TCA cycle were significantly regulated under alkaline conditions. Genes that encoding the key enzyme in carbon-related metabolism such as Rubisco, AMY, PK, ME, CS, ACAT, KAS, and DGAT were identified. Transcriptional regulation of these genes results in carbon flow switching from starch and protein to cell wall metabolism, organic acid synthetic and lipid accumulation in response to alkaline conditions. These results reveal the alkali resistance mechanism of Chlorella sp. BLD and provide a theoretical basis for microalgae oil production under alkaline conditions.
Collapse
Affiliation(s)
- Dehui Qu
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China; Joint International Research Laboratory of Metabolic & Developmental Sciences, Shanghai Jiao Tong University, Shanghai, 200240, China; Biomass Energy Research Center, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xiaoling Miao
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China; Joint International Research Laboratory of Metabolic & Developmental Sciences, Shanghai Jiao Tong University, Shanghai, 200240, China; Biomass Energy Research Center, Shanghai Jiao Tong University, Shanghai, 200240, China.
| |
Collapse
|
27
|
Sun Q, Yamada T, Han Y, Takano T. Influence of salt stress on C 4 photosynthesis in Miscanthus sinensis Anderss. PLANT BIOLOGY (STUTTGART, GERMANY) 2021; 23:44-56. [PMID: 33030790 DOI: 10.1111/plb.13192] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 09/23/2020] [Accepted: 09/24/2020] [Indexed: 06/11/2023]
Abstract
Miscanthus sinensis Anderss. is a good candidate for C4 bioenergy crop development for marginal lands. As one of the characteristics of marginal lands, salinization is a major limitation to agricultural production. The present work aimed to investigate the possible factors involved in the tolerance of M. sinensis C4 photosynthesis to salinity stress. Seedlings of two accessions (salt-tolerant 'JM0119' and salt-sensitive 'JM0099') were subjected to 0 mm NaCl (control) or 250 mm NaCl (salt stress treatment) for 2 weeks. The chlorophyll content, parameters of photosynthesis and chlorophyll a fluorescence, activity of C4 enzymes and expression of C4 genes were measured. The results showed that photosynthesis rate, transpiration rate, chlorophyll content, PSII operating efficiency, coefficient of photochemical quenching, activity of phosphoenolpyruvate carboxylase (PEPC) and pyruvate, orthophosphate dikinase (PPDK) and gene expression of PEPC and PPDK under salinity were higher after long-term salinity exposure in 'JM0119' than in 'JM0099', while activity of NADP-malate dehydrogenase (NADP-MDH) and NADP-malic enzyme (NADP-ME), together with expression of NADP-MDH and NADP-ME, were much higher in 'JM0099' than in 'JM0119'. In conclusion, the increased photosynthetic capacity under long-term salt stress in the salt-tolerant relative to the salt-sensitive M. sinensis accession was mainly associated with non-stomatal factors, such as reduced chlorophyll loss, higher PSII operating efficiency, enhanced activity of PEPC and PPDK and relatively lower activity of NADP-ME.
Collapse
Affiliation(s)
- Q Sun
- Asian Natural Environmental Science Center (ANESC), The University of Tokyo, Tokyo, Japan
- College of Health Science and Environmental Engineering, Shenzhen Technology University, Shenzhen, Guangdong, China
| | - T Yamada
- Field Science Center for Northern Biosphere, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Y Han
- College of Health Science and Environmental Engineering, Shenzhen Technology University, Shenzhen, Guangdong, China
| | - T Takano
- Asian Natural Environmental Science Center (ANESC), The University of Tokyo, Tokyo, Japan
| |
Collapse
|
28
|
Choquette NE, Ainsworth EA, Bezodis W, Cavanagh AP. Ozone tolerant maize hybrids maintain Rubisco content and activity during long-term exposure in the field. PLANT, CELL & ENVIRONMENT 2020; 43:3033-3047. [PMID: 32844407 PMCID: PMC7756399 DOI: 10.1111/pce.13876] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 08/20/2020] [Accepted: 08/21/2020] [Indexed: 05/21/2023]
Abstract
Ozone pollution is a damaging air pollutant that reduces maize yields equivalently to nutrient deficiency, heat, and aridity stress. Therefore, understanding the physiological and biochemical responses of maize to ozone pollution and identifying traits predictive of ozone tolerance is important. In this study, we examined the physiological, biochemical and yield responses of six maize hybrids to elevated ozone in the field using Free Air Ozone Enrichment. Elevated ozone stress reduced photosynthetic capacity, in vivo and in vitro, decreasing Rubisco content, but not activation state. Contrary to our hypotheses, variation in maize hybrid responses to ozone was not associated with stomatal limitation or antioxidant pools in maize. Rather, tolerance to ozone stress in the hybrid B73 × Mo17 was correlated with maintenance of leaf N content. Sensitive lines showed greater ozone-induced senescence and loss of photosynthetic capacity compared to the tolerant line.
Collapse
Affiliation(s)
- Nicole E. Choquette
- Carl R. Woese Institute for Genomic BiologyUniversity of Illinois at Urbana‐ChampaignChampaignIllinoisUSA
- Department of Plant BiologyUniversity of Illinois at Urbana‐ChampaignChampaignIllinoisUSA
| | - Elizabeth A. Ainsworth
- Carl R. Woese Institute for Genomic BiologyUniversity of Illinois at Urbana‐ChampaignChampaignIllinoisUSA
- Department of Plant BiologyUniversity of Illinois at Urbana‐ChampaignChampaignIllinoisUSA
- Global Change and Photosynthesis Research UnitUSDA ARSUrbanaIllinoisUSA
| | - William Bezodis
- Carl R. Woese Institute for Genomic BiologyUniversity of Illinois at Urbana‐ChampaignChampaignIllinoisUSA
- Department of Plant SciencesUniversity of OxfordOxfordUK
| | - Amanda P. Cavanagh
- Carl R. Woese Institute for Genomic BiologyUniversity of Illinois at Urbana‐ChampaignChampaignIllinoisUSA
- School of Life SciencesUniversity of EssexColchesterUK
| |
Collapse
|
29
|
Tcherkez G, Ben Mariem S, Larraya L, García-Mina JM, Zamarreño AM, Paradela A, Cui J, Badeck FW, Meza D, Rizza F, Bunce J, Han X, Tausz-Posch S, Cattivelli L, Fangmeier A, Aranjuelo I. Elevated CO2 has concurrent effects on leaf and grain metabolism but minimal effects on yield in wheat. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:5990-6003. [PMID: 32687190 PMCID: PMC7751139 DOI: 10.1093/jxb/eraa330] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 07/14/2020] [Indexed: 05/21/2023]
Abstract
While the general effect of CO2 enrichment on photosynthesis, stomatal conductance, N content, and yield has been documented, there is still some uncertainty as to whether there are interactive effects between CO2 enrichment and other factors, such as temperature, geographical location, water availability, and cultivar. In addition, the metabolic coordination between leaves and grains, which is crucial for crop responsiveness to elevated CO2, has never been examined closely. Here, we address these two aspects by multi-level analyses of data from several free-air CO2 enrichment experiments conducted in five different countries. There was little effect of elevated CO2 on yield (except in the USA), likely due to photosynthetic capacity acclimation, as reflected by protein profiles. In addition, there was a significant decrease in leaf amino acids (threonine) and macroelements (e.g. K) at elevated CO2, while other elements, such as Mg or S, increased. Despite the non-significant effect of CO2 enrichment on yield, grains appeared to be significantly depleted in N (as expected), but also in threonine, the S-containing amino acid methionine, and Mg. Overall, our results suggest a strong detrimental effect of CO2 enrichment on nutrient availability and remobilization from leaves to grains.
Collapse
Affiliation(s)
- Guillaume Tcherkez
- Research School of Biology, ANU Joint College of Sciences, Australian National University, Canberra Australia
- Institut de Recherche en Horticulture et Semences, INRA d’Angers, Université d’Angers, Structure Fédérative de Recherche QUASAV, Beaucouzé, France
| | - Sinda Ben Mariem
- AgroBiotechnology Institute (IdAB), CSIC-Government of Navarre, Mutilva, Spain
| | - Luis Larraya
- Institute for Multidisciplinary Applied Biology, Departamento de Agronomía, Biotecnología y Alimentación, Universidad Pública de Navarra, Pamplona, Spain
| | - Jose M García-Mina
- Facultades de Ciencias y Farmacia y Nutrición, Grupo de Biología y Química Agrícola (Departamento de Biología Ambiental), Universidad de Navarra, Pamplona, Spain
| | - Angel M Zamarreño
- Facultades de Ciencias y Farmacia y Nutrición, Grupo de Biología y Química Agrícola (Departamento de Biología Ambiental), Universidad de Navarra, Pamplona, Spain
| | | | - Jing Cui
- Research School of Biology, ANU Joint College of Sciences, Australian National University, Canberra Australia
| | - Franz-Werner Badeck
- CREA Research Centre for Genomics and Bioinformatics, Fiorenzuola d’Arda, Italy
| | - Diego Meza
- Institute of Landscape and Plant Ecology, University of Hohenheim, Stuttgart, Germany
| | - Fulvia Rizza
- CREA Research Centre for Genomics and Bioinformatics, Fiorenzuola d’Arda, Italy
| | - James Bunce
- Adaptive Cropping Systems Lab, Beltsville Agricultural Research Center, Agricultural Research Service, US Department of Agriculture, Beltsville, MD, USA
| | - Xue Han
- Institute of Environment and sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences (IEDA, CAAS), Beijing, China
| | - Sabine Tausz-Posch
- Department of Agriculture, Science and the Environment, School of Health, Medical and Applied Sciences, CQUniversity Australia, Kawana, QLD, Australia
| | - Luigi Cattivelli
- CREA Research Centre for Genomics and Bioinformatics, Fiorenzuola d’Arda, Italy
| | - Andreas Fangmeier
- Institute of Landscape and Plant Ecology, University of Hohenheim, Stuttgart, Germany
| | - Iker Aranjuelo
- AgroBiotechnology Institute (IdAB), CSIC-Government of Navarre, Mutilva, Spain
| |
Collapse
|
30
|
Parrotta L, Aloisi I, Faleri C, Romi M, Del Duca S, Cai G. Chronic heat stress affects the photosynthetic apparatus of Solanum lycopersicum L. cv Micro-Tom. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 154:463-475. [PMID: 32912485 DOI: 10.1016/j.plaphy.2020.06.047] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 06/26/2020] [Accepted: 06/26/2020] [Indexed: 05/15/2023]
Abstract
Tomato (Solanum lycopersicum L.) is one of the most widely cultivated crops in the world. Tomato is a plant model and the relationship between yield and biotic/abiotic stress has attracted increasing scientific interest. Tomato cultivation under sub-optimal conditions usually negatively impacts growth and development; in particular, heat stress affects several cellular and metabolic processes, such as respiration and photosynthesis. In this work, we studied the effects of chronic heat stress on various cytological and biochemical aspects using the Micro-Tom cultivar as a model. Photosynthetic efficiency decreased during heat stress while levels of post-photosynthetic sugars (sucrose, fructose, glucose and glucose 6-phosphate) oscillated during stress. Similarly, photosynthetic pigments (lutein, chlorophyll a, chlorophyll b and β-carotene) showed an oscillating downward trend with partial recovery during the stress-free phase. The energetic capacity of leaves (e.g. ATP and ADP) was altered, as well as the reactive oxygen species (ROS) profile; the latter increased during stress. Important effects were also found on the accumulation of Rubisco isoforms, which decreased in number. Heat stress also resulted in a decreased accumulation of lipids (oleic and linoleic acid). Photosynthetically alterations were accompanied by cytological changes in leaf structure, particularly in the number of lipid bodies and starch granules. Prolonged heat stress progressively compromised the photosynthetic efficiency of tomato leaves. The present study reports multi-approach information on metabolic and photosynthetic injuries and responses of tomato plants to chronic heat stress, highlighting the plant's ability to adapt to stress.
Collapse
Affiliation(s)
- L Parrotta
- Department of Life Sciences, University of Siena, Siena, Italy; Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - I Aloisi
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - C Faleri
- Department of Life Sciences, University of Siena, Siena, Italy
| | - M Romi
- Department of Life Sciences, University of Siena, Siena, Italy
| | - S Del Duca
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy.
| | - G Cai
- Department of Life Sciences, University of Siena, Siena, Italy
| |
Collapse
|
31
|
Dubberstein D, Lidon FC, Rodrigues AP, Semedo JN, Marques I, Rodrigues WP, Gouveia D, Armengaud J, Semedo MC, Martins S, Simões-Costa MC, Moura I, Pais IP, Scotti-Campos P, Partelli FL, Campostrini E, Ribeiro-Barros AI, DaMatta FM, Ramalho JC. Resilient and Sensitive Key Points of the Photosynthetic Machinery of Coffea spp. to the Single and Superimposed Exposure to Severe Drought and Heat Stresses. FRONTIERS IN PLANT SCIENCE 2020; 11:1049. [PMID: 32733525 PMCID: PMC7363965 DOI: 10.3389/fpls.2020.01049] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 06/25/2020] [Indexed: 05/23/2023]
Abstract
This study unveils the single and combined drought and heat impacts on the photosynthetic performance of Coffea arabica cv. Icatu and C. canephora cv. Conilon Clone 153 (CL153). Well-watered (WW) potted plants were gradually submitted to severe water deficit (SWD) along 20 days under adequate temperature (25/20°C, day/night), and thereafter exposed to a gradual temperature rise up to 42/30°C, followed by a 14-day water and temperature recovery. Single drought affected all gas exchanges (including Amax ) and most fluorescence parameters in both genotypes. However, Icatu maintained Fv/Fm and RuBisCO activity, and reinforced electron transport rates, carrier contents, and proton gradient regulation (PGR5) and chloroplast NADH dehydrogenase-like (NDH) complex proteins abundance. This suggested negligible non-stomatal limitations of photosynthesis that were accompanied by a triggering of protective cyclic electron transport (CEF) involving both photosystems (PSs). These findings contrasted with declines in RuBisCO and PSs activities, and cytochromes (b559 , f, b563 ) contents in CL153. Remarkable heat tolerance in potential photosynthetic functioning was detected in WW plants of both genotypes (up to 37/28°C or 39/30°C), likely associated with CEF in Icatu. Yet, at 42/30°C the tolerance limit was exceeded. Reduced Amax and increased Ci values reflected non-stomatal limitations of photosynthesis, agreeing with impairments in energy capture (F0 rise), PSII photochemical efficiency, and RuBisCO and Ru5PK activities. In contrast to PSs activities and electron carrier contents, enzyme activities were highly heat sensitive. Until 37/28°C, stresses interaction was largely absent, and drought played the major role in constraining photosynthesis functioning. Harsher conditions (SWD, 42/30°C) exacerbated impairments to PSs, enzymes, and electron carriers, but uncontrolled energy dissipation was mitigated by photoprotective mechanisms. Most parameters recovered fully between 4 and 14 days after stress relief in both genotypes, although some aftereffects persisted in SWD plants. Icatu was more drought tolerant, with WW and SWD plants usually showing a faster and/or greater recovery than CL153. Heat affected both genotypes mostly at 42/30°C, especially in SWD and Icatu plants. Overall, photochemical components were highly tolerant to heat and to stress interaction in contrast to enzymes that deserve special attention by breeding programs to increase coffee sustainability in climate change scenarios.
Collapse
Affiliation(s)
- Danielly Dubberstein
- PlantStress & Biodiversity Lab, Centro de Estudos Florestais (CEF), Dept. Recursos Naturais, Ambiente e Território (DRAT), Instituto Superior de Agronomia (ISA), Universidade de Lisboa (ULisboa), Lisbon, Portugal
- Centro Univ. Norte do Espírito Santo (CEUNES), Dept. Ciências Agrárias e Biológicas (DCAB), Univ. Federal Espírito Santo (UFES), São Mateus, Brazil
| | - Fernando C. Lidon
- Unidade de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia (FCT), Universidade NOVA de Lisboa (UNL), Caparica, Portugal
| | - Ana P. Rodrigues
- PlantStress & Biodiversity Lab, Centro de Estudos Florestais (CEF), Dept. Recursos Naturais, Ambiente e Território (DRAT), Instituto Superior de Agronomia (ISA), Universidade de Lisboa (ULisboa), Lisbon, Portugal
| | - José N. Semedo
- Unidade de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia (FCT), Universidade NOVA de Lisboa (UNL), Caparica, Portugal
- Unid. Investigação em Biotecnologia e Recursos Genéticos, Instituto Nacional de Investigação Agrária e Veterinária, I.P. (INIAV), Oeiras, Portugal
| | - Isabel Marques
- PlantStress & Biodiversity Lab, Centro de Estudos Florestais (CEF), Dept. Recursos Naturais, Ambiente e Território (DRAT), Instituto Superior de Agronomia (ISA), Universidade de Lisboa (ULisboa), Lisbon, Portugal
| | - Weverton P. Rodrigues
- Setor Fisiologia Vegetal, Centro de Ciências e Tecnologias Agropecuárias, Univ. Estadual Norte Fluminense (UENF), Darcy Ribeiro, Brazil
- Centro de Ciências Agrárias, Naturais e Letras, Universidade Estadual da Região Tocantina do Maranhão, Estreito, Brazil
| | - Duarte Gouveia
- Laboratoire Innovations technologiques pour la Détection et le Diagnostic (Li2D), Service de Pharmacologie et Immunoanalyse (SPI), CEA, INRA, Bagnols-sur-Cèze, France
| | - Jean Armengaud
- Laboratoire Innovations technologiques pour la Détection et le Diagnostic (Li2D), Service de Pharmacologie et Immunoanalyse (SPI), CEA, INRA, Bagnols-sur-Cèze, France
| | - Magda C. Semedo
- Unidade de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia (FCT), Universidade NOVA de Lisboa (UNL), Caparica, Portugal
- Área Departamental de Engenharia Química, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, Lisboa, Portugal
| | - Sónia Martins
- Unidade de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia (FCT), Universidade NOVA de Lisboa (UNL), Caparica, Portugal
- Área Departamental de Engenharia Química, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, Lisboa, Portugal
| | - Maria C. Simões-Costa
- PlantStress & Biodiversity Lab, Centro de Estudos Florestais (CEF), Dept. Recursos Naturais, Ambiente e Território (DRAT), Instituto Superior de Agronomia (ISA), Universidade de Lisboa (ULisboa), Lisbon, Portugal
| | - I. Moura
- PlantStress & Biodiversity Lab, Centro de Estudos Florestais (CEF), Dept. Recursos Naturais, Ambiente e Território (DRAT), Instituto Superior de Agronomia (ISA), Universidade de Lisboa (ULisboa), Lisbon, Portugal
| | - Isabel P. Pais
- Unidade de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia (FCT), Universidade NOVA de Lisboa (UNL), Caparica, Portugal
- Unid. Investigação em Biotecnologia e Recursos Genéticos, Instituto Nacional de Investigação Agrária e Veterinária, I.P. (INIAV), Oeiras, Portugal
| | - Paula Scotti-Campos
- Unidade de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia (FCT), Universidade NOVA de Lisboa (UNL), Caparica, Portugal
- Unid. Investigação em Biotecnologia e Recursos Genéticos, Instituto Nacional de Investigação Agrária e Veterinária, I.P. (INIAV), Oeiras, Portugal
| | - Fábio L. Partelli
- Centro Univ. Norte do Espírito Santo (CEUNES), Dept. Ciências Agrárias e Biológicas (DCAB), Univ. Federal Espírito Santo (UFES), São Mateus, Brazil
| | - Eliemar Campostrini
- Setor Fisiologia Vegetal, Centro de Ciências e Tecnologias Agropecuárias, Univ. Estadual Norte Fluminense (UENF), Darcy Ribeiro, Brazil
| | - Ana I. Ribeiro-Barros
- PlantStress & Biodiversity Lab, Centro de Estudos Florestais (CEF), Dept. Recursos Naturais, Ambiente e Território (DRAT), Instituto Superior de Agronomia (ISA), Universidade de Lisboa (ULisboa), Lisbon, Portugal
- Unidade de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia (FCT), Universidade NOVA de Lisboa (UNL), Caparica, Portugal
| | - Fábio M. DaMatta
- Dept. Biologia Vegetal, Univ. Federal Viçosa (UFV), Viçosa, Brazil
| | - José C. Ramalho
- PlantStress & Biodiversity Lab, Centro de Estudos Florestais (CEF), Dept. Recursos Naturais, Ambiente e Território (DRAT), Instituto Superior de Agronomia (ISA), Universidade de Lisboa (ULisboa), Lisbon, Portugal
- Unidade de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia (FCT), Universidade NOVA de Lisboa (UNL), Caparica, Portugal
| |
Collapse
|
32
|
Fernández-González C, Pérez-Lorenzo M, Pratt N, Moore CM, Bibby TS, Marañón E. Effects of Temperature and Nutrient Supply on Resource Allocation, Photosynthetic Strategy, and Metabolic Rates of Synechococcus sp. JOURNAL OF PHYCOLOGY 2020; 56:818-829. [PMID: 32130730 DOI: 10.1111/jpy.12983] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 02/23/2020] [Indexed: 06/10/2023]
Abstract
Temperature and nutrient supply are key factors that control phytoplankton ecophysiology, but their role is commonly investigated in isolation. Their combined effect on resource allocation, photosynthetic strategy, and metabolism remains poorly understood. To characterize the photosynthetic strategy and resource allocation under different conditions, we analyzed the responses of a marine cyanobacterium (Synechococcus PCC 7002) to multiple combinations of temperature and nutrient supply. We measured the abundance of proteins involved in the dark (RuBisCO, rbcL) and light (Photosystem II, psbA) photosynthetic reactions, the content of chlorophyll a, carbon and nitrogen, and the rates of photosynthesis, respiration, and growth. We found that rbcL and psbA abundance increased with nutrient supply, whereas a temperature-induced increase in psbA occurred only in nutrient-replete treatments. Low temperature and abundant nutrients caused increased RuBisCO abundance, a pattern we observed also in natural phytoplankton assemblages across a wide latitudinal range. Photosynthesis and respiration increased with temperature only under nutrient-sufficient conditions. These results suggest that nutrient supply exerts a stronger effect than temperature upon both photosynthetic protein abundance and metabolic rates in Synechococcus sp. and that the temperature effect on photosynthetic physiology and metabolism is nutrient dependent. The preferential resource allocation into the light instead of the dark reactions of photosynthesis as temperature rises is likely related to the different temperature dependence of dark-reaction enzymatic rates versus photochemistry. These findings contribute to our understanding of the strategies for photosynthetic energy allocation in phytoplankton inhabiting contrasting environments.
Collapse
Affiliation(s)
| | - María Pérez-Lorenzo
- Department of Ecology and Animal Biology, Universidade de Vigo, 36310, Vigo, Spain
| | - Nicola Pratt
- Ocean and Earth Science, University of Southampton, SO14 3ZH, Southampton, UK
| | - C Mark Moore
- Ocean and Earth Science, University of Southampton, SO14 3ZH, Southampton, UK
| | - Thomas S Bibby
- Ocean and Earth Science, University of Southampton, SO14 3ZH, Southampton, UK
| | - Emilio Marañón
- Department of Ecology and Animal Biology, Universidade de Vigo, 36310, Vigo, Spain
| |
Collapse
|
33
|
Hu S, Ding Y, Zhu C. Sensitivity and Responses of Chloroplasts to Heat Stress in Plants. FRONTIERS IN PLANT SCIENCE 2020; 11:375. [PMID: 32300353 PMCID: PMC7142257 DOI: 10.3389/fpls.2020.00375] [Citation(s) in RCA: 131] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 03/16/2020] [Indexed: 05/21/2023]
Abstract
Increased temperatures caused by global warming threaten agricultural production, as warmer conditions can inhibit plant growth and development or even destroy crops in extreme circumstances. Extensive research over the past several decades has revealed that chloroplasts, the photosynthetic organelles of plants, are highly sensitive to heat stress, which affects a variety of photosynthetic processes including chlorophyll biosynthesis, photochemical reactions, electron transport, and CO2 assimilation. Important mechanisms by which plant cells respond to heat stress to protect these photosynthetic organelles have been identified and analyzed. More recent studies have made it clear that chloroplasts play an important role in inducing the expression of nuclear heat-response genes during the heat stress response. In this review, we summarize these important advances in plant-based research and discuss how the sensitivity, responses, and signaling roles of chloroplasts contribute to plant heat sensitivity and tolerance.
Collapse
Affiliation(s)
| | | | - Cheng Zhu
- Key Laboratory of Marine Food Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou, China
| |
Collapse
|
34
|
Shaki F, Ebrahimzadeh Maboud H, Niknam V. Differential proteomics: Effect of growth regulators on salt stress responses in safflower seedlings. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2020; 164:149-155. [PMID: 32284121 DOI: 10.1016/j.pestbp.2020.01.006] [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: 10/09/2019] [Revised: 01/17/2020] [Accepted: 01/18/2020] [Indexed: 06/11/2023]
Abstract
Productivity of safflower (Carthamus tinctorius L.) is markedly reduced by salt stress. This study is based on analysis of proteins profile of safflower plants treated with 200 mM NaCl, with exogenously applied salicylic acid (SA) and penconazole (PEN), as growth regulators. Plants were investigated through a gel-based proteomic approach, which resulted in the identification of 17 salt-responsive proteins related to different metabolic modifications. Of these, seven different proteins were up or down regulated by both SA and PEN, suggesting the synergistic and antagonistic effects of SA and PEN. The classification of differentially expressed proteins showed that salt-responsive proteins were mainly involved in photosynthesis, ion homeostasis, and oxidative stress response, as well as nitrogen, protein, and carbohydrate metabolism. The identified stress-responsive proteins in this study could pave the way to develop salt tolerance in safflower, thus sustaining its productivity under salinity. In addition, SA and PEN may be considered as a foliar application to ameliorate salinity effects, due to their low price and availability.
Collapse
Affiliation(s)
- Fatemeh Shaki
- Department of Plant Biology, School of Biology, College of Science, University of Tehran, Tehran, Iran.
| | - Hasan Ebrahimzadeh Maboud
- Department of Plant Biology, School of Biology, College of Science, University of Tehran, Tehran, Iran.
| | - Vahid Niknam
- Department of Plant Biology, School of Biology, College of Science, University of Tehran, Tehran, Iran
| |
Collapse
|
35
|
Silva FB, Costa AC, Müller C, Nascimento KT, Batista PF, Vital RG, Megguer CA, Jakelaitis A, Domingos M. Dipteryx alata, a tree native to the Brazilian Cerrado, is sensitive to the herbicide nicosulfuron. ECOTOXICOLOGY (LONDON, ENGLAND) 2020; 29:217-225. [PMID: 32030573 DOI: 10.1007/s10646-019-02154-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 12/13/2019] [Indexed: 06/10/2023]
Abstract
The expansion of land use for agricultural interests and the excessive use of herbicides are among the causes of biodiversity losses in the Brazilian Cerrado biome. Therefore, we aimed to test the hypothesis that Dipteryx alata Vogel, a common species in this biome, is sensitive to nicosulfuron because of its high phytotoxicity. We evaluated physiological, biochemical and morphological responses in D. alata plants exposed to increasing doses of the herbicide. Young plants were transplanted to 10 L pots containing substrate composed of soil and sand (2:1) after fertilization. After an acclimation period, the following doses of nicosulfuron were applied: 0 (control), 6, 12, 24, 48, and 60 g a.e. ha-1. The experiment was conducted in a randomized block design factorial scheme with six doses of nicosulfuron, three evaluation times, and five replicates per treatment. The effects of the herbicide were assessed by measuring gas exchange, chlorophyll a fluorescence, photosynthetic pigments, membrane permeability, antioxidant enzymes and acetolactate synthase. Nicosulfuron altered the photosynthetic machinery and enzymatic metabolism of D. alata. Reductions in physiological traits, increased catalase and ascorbate peroxidase activities, enhanced malondialdehyde concentrations rate of electrolyte leakage and decreased acetolactate synthase activity in response to nicosulfuron all suggest that D. alata is sensitive to this herbicide.
Collapse
Affiliation(s)
- Fábia Barbosa Silva
- Instituto Federal de Educação, Ciência e Tecnologia Goiano-Campus Rio Verde, Caixa Postal 66, Rio Verde, GO, 75901-9 70, Brazil
- Laboratório de Estudo de Plantas sob Estresse, Universidade de Sao Paulo, Escola Superior de Agricultura "Luiz de Queiroz", Caixa Postal 9, Piracicaba, SP, 13418-900, Brazil
| | - Alan Carlos Costa
- Instituto Federal de Educação, Ciência e Tecnologia Goiano-Campus Rio Verde, Caixa Postal 66, Rio Verde, GO, 75901-9 70, Brazil.
| | - Caroline Müller
- Instituto Federal de Educação, Ciência e Tecnologia Goiano-Campus Rio Verde, Caixa Postal 66, Rio Verde, GO, 75901-9 70, Brazil
| | - Kelly Telles Nascimento
- Instituto Federal de Educação, Ciência e Tecnologia Goiano-Campus Rio Verde, Caixa Postal 66, Rio Verde, GO, 75901-9 70, Brazil
| | - Priscila Ferreira Batista
- Instituto Federal de Educação, Ciência e Tecnologia Goiano-Campus Rio Verde, Caixa Postal 66, Rio Verde, GO, 75901-9 70, Brazil
| | - Roberto Gomes Vital
- Instituto Federal de Educação, Ciência e Tecnologia Goiano-Campus Rio Verde, Caixa Postal 66, Rio Verde, GO, 75901-9 70, Brazil
| | - Clarice Aparecida Megguer
- Instituto Federal de Educação, Ciência e Tecnologia Goiano-Campus Morrinhos, Caixa Postal 92, Morrinhos, GO, 75650-000, Brazil
| | - Adriano Jakelaitis
- Instituto Federal de Educação, Ciência e Tecnologia Goiano-Campus Rio Verde, Caixa Postal 66, Rio Verde, GO, 75901-9 70, Brazil
| | - Marisa Domingos
- Instituto de Botânica, Núcleo de Pesquisa em Ecologia, Caixa Postal 68041, São Paulo, SP, 04045-972, Brazil
| |
Collapse
|
36
|
Colina F, Carbó M, Meijón M, Cañal MJ, Valledor L. Low UV-C stress modulates Chlamydomonas reinhardtii biomass composition and oxidative stress response through proteomic and metabolomic changes involving novel signalers and effectors. BIOTECHNOLOGY FOR BIOFUELS 2020; 13:110. [PMID: 32577129 PMCID: PMC7305600 DOI: 10.1186/s13068-020-01750-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 06/11/2020] [Indexed: 05/06/2023]
Abstract
BACKGROUND The exposure of microalgae and plants to low UV-C radiation dosages can improve their biomass composition and stress tolerance. Despite UV-C sharing these effects with UV-A/B but at much lower dosages, UV-C sensing and signal mechanisms are still mostly unknown. Thus, we have described and integrated the proteometabolomic and physiological changes occurring in Chlamydomonas reinhardtii-a simple Plantae model-into the first 24 h after a short and low-intensity UV-C irradiation in order to reconstruct the microalgae response system to this stress. RESULTS The microalgae response was characterized by increased redox homeostasis, ROS scavenging and protein damage repair/avoidance elements. These processes were upregulated along with others related to the modulation of photosynthetic electron flux, carbon fixation and C/N metabolism. These changes, attributed to either direct UV-C-, ROS- or redox unbalances-associated damage, trigger a response process involving novel signaling intermediaries and effectors such as the translation modulator FAP204, a PP2A-like protein and a novel DYRK kinase. These elements were found linked to the modulation of Chlamydomonas biomass composition (starch accumulation) and proliferation, within an UV-C response probably modulated by different epigenetic factors. CONCLUSION Chosen multiomics integration approach was able to describe many fast changes, including biomass composition and ROS stress tolerance, as a response to a low-intensity UV-C stress. Moreover, the employed omics and systems biology approach placed many previously unidentified protein and metabolites at the center of these changes. These elements would be promising targets for the characterization of this stress response in microalgae and plants and the engineering of more productive microalgae strains.
Collapse
Affiliation(s)
- Francisco Colina
- Plant Physiology, Department of Organisms and Systems Biology and University Institute of Biotechnology of Asturias (IUBA), University of Oviedo, Oviedo, Spain
| | - María Carbó
- Plant Physiology, Department of Organisms and Systems Biology and University Institute of Biotechnology of Asturias (IUBA), University of Oviedo, Oviedo, Spain
| | - Mónica Meijón
- Plant Physiology, Department of Organisms and Systems Biology and University Institute of Biotechnology of Asturias (IUBA), University of Oviedo, Oviedo, Spain
| | - María Jesús Cañal
- Plant Physiology, Department of Organisms and Systems Biology and University Institute of Biotechnology of Asturias (IUBA), University of Oviedo, Oviedo, Spain
| | - Luis Valledor
- Plant Physiology, Department of Organisms and Systems Biology and University Institute of Biotechnology of Asturias (IUBA), University of Oviedo, Oviedo, Spain
| |
Collapse
|
37
|
Luo J, Yang G, Igalavithana AD, He W, Gao B, Tsang DCW, Ok YS. Effects of elevated CO 2 on the phytoremediation efficiency of Noccaea caerulescens. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 255:113169. [PMID: 31539847 DOI: 10.1016/j.envpol.2019.113169] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 08/20/2019] [Accepted: 09/02/2019] [Indexed: 05/28/2023]
Abstract
Concentrations of atmospheric carbon dioxide have been continuously increasing, and more investigations are needed in regard to the responses of various plants to the corresponding climatic conditions. In particular, potential variations in phytoremediation efficiency induced by global warming have rarely been investigated. Objective of this research was to evaluate the changes in phytoremediation efficiency of Noccaea caerulescens exposed to different concentrations of CO2. The concentrations of CO2 in the elevated CO2 treatments were adjusted to 550 ± 50 ppm to match the level of atmospheric CO2 predicted in 2050-2070. Compared to ambient controls (400 ppm), biomass yields and metal concentrations of N. caerulescens increased under elevated CO2 conditions, thus indicating that the phytoremediation efficiency of the species could increase in higher CO2 environment. In addition, water soluble and exchangeable Pb and Cu concentrations in soils decreased under elevated CO2 conditions, which reduced the leaching risks of the metals. The concentrations of malondialdehyde (MDA) of N. caerulescens decreased to different degrees with the increased CO2 concentrations. The overall findings suggested that elevations in CO2 can reduce the oxidative damage caused by metals in this species. The phytoremediation efficiency of N. caerulescens grown in multiple metal-enriched soils could be enhanced with global warming.
Collapse
Affiliation(s)
- Jie Luo
- College of Resources and Environment, Yangtze University, Wuhan, China
| | - Ge Yang
- College of Resources and Environment, Yangtze University, Wuhan, China
| | - Avanthi Deshani Igalavithana
- Korea Biochar Research Center, O-Jeong Eco-Resilience Institute (OJERI) & Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Wenxiang He
- College of Resources and Environment, Yangtze University, Wuhan, China
| | - Bin Gao
- Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL, 32611, USA
| | - Daniel C W Tsang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Yong Sik Ok
- Korea Biochar Research Center, O-Jeong Eco-Resilience Institute (OJERI) & Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea.
| |
Collapse
|
38
|
Li P, Li B, Seneweera S, Zong Y, Li FY, Han Y, Hao X. Photosynthesis and yield response to elevated CO 2, C 4 plant foxtail millet behaves similarly to C 3 species. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2019; 285:239-247. [PMID: 31203889 DOI: 10.1016/j.plantsci.2019.05.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 02/28/2019] [Accepted: 05/08/2019] [Indexed: 05/14/2023]
Abstract
Foxtail millet (Setaria italica) is a nutrient-rich food source traditionally grown in arid and semi-arid areas, as it is well adapted to drought climate. Yet there is limited information as how the crop responses to the changing climate. In order to investigate the response of foxtail millet to elevated [CO2] and the underlying mechanism, the crop was grown at ambient [CO2] (400 μmol mol-1) and elevated [CO2] (600 μmol mol-1) in an open-top chamber (OTC) experimental facility in North China. The changes in leaf photosynthesis, chlorophyll fluorescence, biomass, yield and global gene expression in response to elevated [CO2] were determined. Despite foxtail millet being a C4 photosynthetic crop, photosynthetic rates (PN) and intrinsic water-use efficiency (WUEi), were increased under elevated [CO2]. Similarly, grain yield and above-ground biomass also significantly increased (P < 0.05) for the two years of experimentation under elevated [CO2]. Increases in seeds and tiller number, spike and stem weight were the main contributors to the increased grain yield and biomass. Using transcriptomic analyses, this study further identified some genes which play a role in cell wall reinforcement, shoot initiation, stomatal conductance, carbon fixation, glycolysis / gluconeogenesis responsive to elevated [CO2]. Changes in these genes reduced plant height, increased stem diameters, and promote CO2 fixation. Higher photosynthetic rates at elevated [CO2] demonstrated that foxtail millet was not photosynthetically saturated at elevated [CO2] and its photosynthesis response to elevated [CO2] were analogous to C3 plants.
Collapse
Affiliation(s)
- Ping Li
- College of Agriculture, Shanxi Agricultural University, Taigu 030801, China; Shanxi Key Laboratory of Genetic Resources and Genetic Improvement of Minor Crops, Taigu 030801, Shanxi, China
| | - Bingyan Li
- College of Agriculture, Shanxi Agricultural University, Taigu 030801, China
| | - Saman Seneweera
- National Institute of Fundamental Studies, Kandy 20000, Sri Lanka
| | - Yuzheng Zong
- College of Agriculture, Shanxi Agricultural University, Taigu 030801, China
| | - Frank Yonghong Li
- College of Agriculture, Shanxi Agricultural University, Taigu 030801, China; Ecology, College of Life Sciences, Inner Mongolia University, Huhehot 010021, China
| | - Yuanhuai Han
- College of Agriculture, Shanxi Agricultural University, Taigu 030801, China; Shanxi Key Laboratory of Genetic Resources and Genetic Improvement of Minor Crops, Taigu 030801, Shanxi, China; Key Laboratory of Crop Gene Resources and Germplasm Enhancement on Loess Plateau, Ministry of Agriculture, Taiyuan 030031, Shanxi, China
| | - Xingyu Hao
- College of Agriculture, Shanxi Agricultural University, Taigu 030801, China.
| |
Collapse
|
39
|
Wang YY, Wang Y, Li GZ, Hao L. Salicylic acid-altering Arabidopsis plant response to cadmium exposure: Underlying mechanisms affecting antioxidation and photosynthesis-related processes. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 169:645-653. [PMID: 30496997 DOI: 10.1016/j.ecoenv.2018.11.062] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 11/09/2018] [Accepted: 11/15/2018] [Indexed: 06/09/2023]
Abstract
Previous studies have demonstrated that the genetic modification of basal salicylic acid (SA) level changed Arabidopsis plant response to cadmium (Cd) stress, but the mechanisms remain evaluated. In this study, Arabidopsis wild type (WT) and its SA-reducing transgenic line nahG (naphthalene hydroxylase G), SA-accumulating mutant snc1 (suppressor of nonexpressor of PR gene, constitutive 1) were exposed to 50 μM Cd2+ for 48 h or 7 d (just for assessing plant growth). The Cd treatment increased the expression levels of SA biosynthesis-related genes leading to enhanced SA accumulations in plant leaves, which was further confirmed by the expression patterns of SA marker genes. Cadmium accumulation was much higher in the Cd-exposed roots than in leaves, but was not affected by SA levels. Exposure to Cd inhibited plant growth of both aerial parts and roots, to a greater degree in snc1, and a lesser extent in nahG as compared with WT. Although Cd treatment increased plant antioxidative capacity, oxidative damage happened, especially to snc1 plants. Photoinhibition occurred in Cd-stressed plants leading to a decrease in photosynthetic activity, with a greater degree in snc1, while a lesser in nahG, as indicated by the changes of several key photosynthetic parameters. We comprehensively analyzed the expression profiles of photosynthesis-related genes, and observed a positive correlation between Cd tolerance and gene expression levels, wherein the transcription levels of two electron transport-related genes and two amylase-encoding genes were all up-regulated in nahG plants after Cd treatment, implying a significance of the related processes in this genotype against Cd stress.
Collapse
Affiliation(s)
- Yuan-Yuan Wang
- College of Life Science, Shenyang Normal University, Shenyang 110034, China
| | - Yu Wang
- College of Life Science, Shenyang Normal University, Shenyang 110034, China
| | - Guang-Zhe Li
- College of Life Science, Shenyang Normal University, Shenyang 110034, China.
| | - Lin Hao
- College of Life Science, Shenyang Normal University, Shenyang 110034, China.
| |
Collapse
|
40
|
Zhao X, Li WF, Wang Y, Ma ZH, Yang SJ, Zhou Q, Mao J, Chen BH. Elevated CO 2 concentration promotes photosynthesis of grape (Vitis vinifera L. cv. 'Pinot noir') plantlet in vitro by regulating RbcS and Rca revealed by proteomic and transcriptomic profiles. BMC PLANT BIOLOGY 2019; 19:42. [PMID: 30696402 PMCID: PMC6352424 DOI: 10.1186/s12870-019-1644-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 01/10/2019] [Indexed: 05/04/2023]
Abstract
BACKGROUND Plant photosynthesis can be improved by elevated CO2 concentration (eCO2). In vitro growth under CO2 enriched environment can lead to greater biomass accumulation than the conventional in micropropagation. However, little is know about how eCO2 promotes transformation of grape plantlets in vitro from heterotrophic to autotrophic. In addition, how photosynthesis-related genes and their proteins are expressed under eCO2 and the mechanisms of how eCO2 regulates RbcS, Rca and their proteins have not been reported. RESULTS Grape (Vitis vinifera L. cv. 'Pinot Noir') plantlets in vitro were cultured with 2% sucrose designated as control (CK), with eCO2 (1000 μmol·mol- 1) as C0, with both 2% sucrose and eCO2 as Cs. Here, transcriptomic and proteomic profiles associated with photosynthesis and growth in leaves of V. vinifera at different CO2 concentration were analyzed. A total of 1814 genes (465 up-regulated and 1349 down-regulated) and 172 proteins (80 up-regulated and 97 down-regulated) were significantly differentially expressed in eCO2 compared to CK. Photosynthesis-antenna, photosynthesis and metabolism pathways were enriched based on GO and KEGG. Simultaneously, 9, 6 and 48 proteins were involved in the three pathways, respectively. The leaf area, plantlet height, qP, ΦPSII and ETR increased under eCO2, whereas Fv/Fm and NPQ decreased. Changes of these physiological indexes are related to the function of DEPs. After combined analysis of proteomic and transcriptomic, the results make clear that eCO2 have different effects on gene transcription and translation. RbcS was not correlated with its mRNA level, suggesting that the change in the amount of RbcS is regulated at their transcript levels by eCO2. However, Rca was negatively correlated with its mRNA level, it is suggested that the change in the amount of its corresponding protein is regulated at their translation levels by eCO2. CONCLUSIONS Transcriptomic, proteomic and physiological analysis were used to evaluate eCO2 effects on photosynthesis. The eCO2 triggered the RbcS and Rca up-regulated, thus promoting photosynthesis and then advancing transformation of grape plantlets from heterotrophic to autotrophic. This research will helpful to understand the influence of eCO2 on plant growth and promote reveal the mechanism of plant transformation from heterotrophic to autotrophic.
Collapse
Affiliation(s)
- Xin Zhao
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070 People’s Republic of China
| | - Wen-Fang Li
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070 People’s Republic of China
| | - Ying Wang
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070 People’s Republic of China
| | - Zong-Huan Ma
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070 People’s Republic of China
| | - Shi-Jin Yang
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070 People’s Republic of China
| | - Qi Zhou
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070 People’s Republic of China
| | - Juan Mao
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070 People’s Republic of China
| | - Bai-Hong Chen
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070 People’s Republic of China
| |
Collapse
|
41
|
Zhou SX, Prentice IC, Medlyn BE. Bridging Drought Experiment and Modeling: Representing the Differential Sensitivities of Leaf Gas Exchange to Drought. FRONTIERS IN PLANT SCIENCE 2019; 9:1965. [PMID: 30697222 PMCID: PMC6340983 DOI: 10.3389/fpls.2018.01965] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 12/18/2018] [Indexed: 05/15/2023]
Abstract
Global climate change is expected to increase drought duration and intensity in certain regions while increasing rainfall in others. The quantitative consequences of increased drought for ecosystems are not easy to predict. Process-based models must be informed by experiments to determine the resilience of plants and ecosystems from different climates. Here, we demonstrate what and how experimentally derived quantitative information can improve the representation of stomatal and non-stomatal photosynthetic responses to drought in large-scale vegetation models. In particular, we review literature on the answers to four key questions: (1) Which photosynthetic processes are affected under short-term drought? (2) How do the stomatal and non-stomatal responses to short-term drought vary among species originating from different hydro-climates? (3) Do plants acclimate to prolonged water stress, and do mesic and xeric species differ in their degree of acclimation? (4) Does inclusion of experimentally based plant functional type specific stomatal and non-stomatal response functions to drought help Land Surface Models to reproduce key features of ecosystem responses to drought? We highlighted the need for evaluating model representations of the fundamental eco-physiological processes under drought. Taking differential drought sensitivity of different vegetation into account is necessary for Land Surface Models to accurately model drought responses, or the drought impacts on vegetation in drier environments may be over-estimated.
Collapse
Affiliation(s)
- Shuang-Xi Zhou
- Department of Biological Sciences, Macquarie University, Sydney, NSW, Australia
- The New Zealand Institute for Plant and Food Research Ltd., Hawke’s Bay, New Zealand
| | - I. Colin Prentice
- Department of Biological Sciences, Macquarie University, Sydney, NSW, Australia
- AXA Chair of Biosphere and Climate Impacts, Grand Challenges in Ecosystems and the Environment and Grantham Institute – Climate Change and the Environment, Department of Life Sciences, Imperial College London, Ascot, United Kingdom
| | - Belinda E. Medlyn
- Department of Biological Sciences, Macquarie University, Sydney, NSW, Australia
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia
| |
Collapse
|
42
|
Pereira DT, Batista D, Filipin EP, Bouzon ZL, Simioni C. Effects of Ultraviolet Radiation (UVA + UVB) on Germination of Carpospores of the Red Macroalga Pyropia acanthophora var. brasiliensis (Rhodophyta, Bangiales): Morphological Changes. Photochem Photobiol 2018; 95:803-811. [PMID: 30466157 DOI: 10.1111/php.13055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 11/14/2018] [Indexed: 11/28/2022]
Abstract
Carpospores of Pyropia acanthophora var. brasiliensis are dispersion and reproduction units responsible for giving rise to the diploid filamentous structure of this alga's life cycle. The present study assesses the anthropogenic impact of ultraviolet radiation (UVR) on morphology and ultrastructure, spore viability, autofluorescence of chloroplasts and the amount of intensity of ROS during the germination of carpospores. Carpospores were cultivated at 24 ± 1°C, 40 ± 10 μmol photons m-2 s-1 with photoperiod of 12 h and exposed to UVAR + UVBR for 3 h a day for 2 days with a daily dose of 5.05 J cm-2 for UVAR and 0.095 J cm-2 for UVBR. Samples were cultured for another five days exposed only to PAR in order to confirm their viability after the initial 2-day exposure. Carpospores showed significant sensitivity to UVR exposure after only 48 h, including changes in developmental rate, overall morphology, cell organization and chloroplast autofluorescence. UVR exposure inhibited germ tube formation in carpospores, which were mostly nonviable and/or altered, showing retracted cytoplasm and disorganized cytoplasmic content. Even in the absence of UVR exposure, carpospores remained collapsed, indicating irreversible damage. It can be concluded that UVR is a limiting factor for the development of P. acanthophora.
Collapse
Affiliation(s)
- Débora Tomazi Pereira
- Plant Cell Biology Laboratory, Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Deonir Batista
- Plant Cell Biology Laboratory, Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Elisa Poltronieri Filipin
- Plant Cell Biology Laboratory, Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Zenilda Laurita Bouzon
- Plant Cell Biology Laboratory, Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Carmen Simioni
- Plant Cell Biology Laboratory, Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| |
Collapse
|
43
|
Loka D, Harper J, Humphreys M, Gasior D, Wootton-Beard P, Gwynn-Jones D, Scullion J, Doonan J, Kingston-Smith A, Dodd R, Wang J, Chadwick D, Hill P, Jones D, Mills G, Hayes F, Robinson D. Impacts of abiotic stresses on the physiology and metabolism of cool-season grasses: A review. Food Energy Secur 2018. [DOI: 10.1002/fes3.152] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Affiliation(s)
- Dimitra Loka
- DEMETER; Larisa Greece
- IBERS; Aberystwyth University, Gogerddan; Aberystwyth Ceredigion UK
| | - John Harper
- IBERS; Aberystwyth University, Gogerddan; Aberystwyth Ceredigion UK
| | - Mike Humphreys
- IBERS; Aberystwyth University, Gogerddan; Aberystwyth Ceredigion UK
| | - Dagmara Gasior
- IBERS; Aberystwyth University, Gogerddan; Aberystwyth Ceredigion UK
| | | | | | - John Scullion
- IBERS; Aberystwyth University, Gogerddan; Aberystwyth Ceredigion UK
| | - John Doonan
- IBERS; Aberystwyth University, Gogerddan; Aberystwyth Ceredigion UK
| | | | - Rosalind Dodd
- Environment Centre Wales; Bangor University; Gwynedd UK
| | - Jinyang Wang
- Environment Centre Wales; Bangor University; Gwynedd UK
| | | | - Paul Hill
- Environment Centre Wales; Bangor University; Gwynedd UK
| | - Davey Jones
- Environment Centre Wales; Bangor University; Gwynedd UK
| | - Gina Mills
- Centre for Ecology and Hydrology, Environment Centre Wales; Bangor Gwynedd UK
| | - Felicity Hayes
- Centre for Ecology and Hydrology, Environment Centre Wales; Bangor Gwynedd UK
| | - David Robinson
- Centre for Ecology and Hydrology, Environment Centre Wales; Bangor Gwynedd UK
| |
Collapse
|
44
|
Cole A, Praeger C, Mannering T, de Nys R, Magnusson M. Hot and bright: Thermal and light environments for the culture of Oedogonium intermedium and the geographical limits for large-scale cultivation in Australia. ALGAL RES 2018. [DOI: 10.1016/j.algal.2018.08.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
45
|
Sorrentino MC, Capozzi F, Amitrano C, Giordano S, Arena C, Spagnuolo V. Performance of three cardoon cultivars in an industrial heavy metal-contaminated soil: Effects on morphology, cytology and photosynthesis. JOURNAL OF HAZARDOUS MATERIALS 2018; 351:131-137. [PMID: 29529561 DOI: 10.1016/j.jhazmat.2018.02.044] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 02/21/2018] [Accepted: 02/23/2018] [Indexed: 05/23/2023]
Abstract
In the present work the cytomorphological and physiological effects on three cardoon cultivars - Sardo, Siciliano, Spagnolo - grown in a metal-polluted soil, were investigated, to assess the traits concurring to the high tolerance to metal stress observed in cv. Spagnolo compared to the other two cultivars. The plants were grown for one month on a real polluted soil collected at a dismantling battery plant, highly enriched by heavy metals, especially Cd and Pb, and their leaves were analyzed by a multidisciplinary approach. TEM observations highlighted severe ultrastructural damage in Sardo and Siciliano, and preserved cytological traits in Spagnolo. Both pigment content and photochemistry indicated a decline in photosynthesis in Sardo and Sicilano and a substantial stability of the same parameters in Spagnolo. Protein analysis indicated a decrease in D1 level in all cultivars; in Spagnolo the D1 decrease was more pronounced and associated to a significant increase in Rubisco, a pattern likely preserving photosynthetic efficiency and high biomass production. In conclusion, Spagnolo cardoon was able to face metal stress through a prompt, multiple response balancing structural and functional traits.
Collapse
Affiliation(s)
- M C Sorrentino
- Dipartimento di Biologia, Università degli Studi di Napoli Federico II, via Cinthia 4, 80126, Napoli, Italy
| | - F Capozzi
- Dipartimento di Biologia, Università degli Studi di Napoli Federico II, via Cinthia 4, 80126, Napoli, Italy
| | - C Amitrano
- Dipartimento di Biologia, Università degli Studi di Napoli Federico II, via Cinthia 4, 80126, Napoli, Italy
| | - S Giordano
- Dipartimento di Biologia, Università degli Studi di Napoli Federico II, via Cinthia 4, 80126, Napoli, Italy
| | - C Arena
- Dipartimento di Biologia, Università degli Studi di Napoli Federico II, via Cinthia 4, 80126, Napoli, Italy.
| | - V Spagnuolo
- Dipartimento di Biologia, Università degli Studi di Napoli Federico II, via Cinthia 4, 80126, Napoli, Italy
| |
Collapse
|
46
|
León-Sánchez L, Nicolás E, Goberna M, Prieto I, Maestre FT, Querejeta JI. Poor plant performance under simulated climate change is linked to mycorrhizal responses in a semiarid shrubland. THE JOURNAL OF ECOLOGY 2018; 106:960-976. [PMID: 30078910 PMCID: PMC6071827 DOI: 10.1111/1365-2745.12888] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Warmer and drier conditions associated with ongoing climate change will increase abiotic stress for plants and mycorrhizal fungi in drylands worldwide, thereby potentially reducing vegetation cover and productivity and increasing the risk of land degradation and desertification. Rhizosphere microbial interactions and feedbacks are critical processes that could either mitigate or aggravate the vulnerability of dryland vegetation to forecasted climate change.We conducted a four-year manipulative study in a semiarid shrubland in the Iberian Peninsula to assess the effects of warming (~2.5ºC; W), rainfall reduction (~30%; RR) and their combination (W+RR) on the performance of native shrubs (Helianthemum squamatum) and their associated mycorrhizal fungi.Warming (W and W+RR) decreased the net photosynthetic rates of H. squamatum shrubs by ~31% despite concurrent increases in stomatal conductance (~33%), leading to sharp decreases (~50%) in water use efficiency. Warming also advanced growth phenology, decreased leaf nitrogen and phosphorus contents per unit area, reduced shoot biomass production by ~36% and decreased survival during a dry year in both W and W+RR plants. Plants under RR showed more moderate decreases (~10-20%) in photosynthesis, stomatal conductance and shoot growth.Warming, RR and W+RR altered ectomycorrhizal fungal (EMF) community structure and drastically reduced the relative abundance of EMF sequences obtained by high-throughput sequencing, a response associated with decreases in the leaf nitrogen, phosphorus and dry matter contents of their host plants. In contrast to EMF, the community structure and relative sequence abundances of other non-mycorrhizal fungal guilds were not significantly affected by the climate manipulation treatments.Synthesis: Our findings highlight the vulnerability of both native plants and their symbiotic mycorrhizal fungi to climate warming and drying in semiarid shrublands, and point to the importance of a deeper understanding of plant-soil feedbacks to predict dryland vegetation responses to forecasted aridification. The interdependent responses of plants and ectomycorrhizal fungi to warming and rainfall reduction may lead to a detrimental feedback loop on vegetation productivity and nutrient pool size, which could amplify the adverse impacts of forecasted climate change on ecosystem functioning in EMF-dominated drylands.
Collapse
Affiliation(s)
- Lupe León-Sánchez
- Centro de Edafología y Biología Aplicada del Segura (CEBAS-CSIC), Murcia, Spain
| | - Emilio Nicolás
- Centro de Edafología y Biología Aplicada del Segura (CEBAS-CSIC), Murcia, Spain
| | - Marta Goberna
- Centro de Investigaciones sobre Desertificación (CIDE-CSIC, UVEG, GV), Moncada, Valencia, Spain
| | - Iván Prieto
- Centro de Edafología y Biología Aplicada del Segura (CEBAS-CSIC), Murcia, Spain
| | - Fernando T. Maestre
- Departamento de Biología y Geología, Física y Química Inorgánica, Escuela Superior de Ciencias Experimentales y Tecnología, Universidad Rey Juan Carlos, Móstoles, Spain
| | | |
Collapse
|
47
|
Huarancca Reyes T, Scartazza A, Castagna A, Cosio EG, Ranieri A, Guglielminetti L. Physiological effects of short acute UVB treatments in Chenopodium quinoa Willd. Sci Rep 2018; 8:371. [PMID: 29321610 PMCID: PMC5762895 DOI: 10.1038/s41598-017-18710-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 12/15/2017] [Indexed: 11/30/2022] Open
Abstract
Increased ultraviolet B (UVB) radiation due to global change can affect plant growth and metabolism. Here, we evaluated the capacity of quinoa to resist under short acute UVB irradiation. Quinoa was daily exposed for 30 or 60 min to 1.69 W m−2 UVB. The results showed that 30 min exposure in 9 d-course did not cause severe alterations on photosynthetic pigments and flavonoids, but a significant increase of antioxidant capacity was observed. Otherwise, 60 min UVB in 5 d-course reduced almost all these parameters except for an increase in the de-epoxidation of xanthophyll cycle pigments and led to the death of the plants. Further studies of gas exchange and fluorescence measurements showed that 30 min UVB dramatically decrease stomatal conductance, probably associated to reactive oxygen species (ROS) production. Inhibition of photosynthetic electron transport was also observed, which could be a response to reduce ROS. Otherwise, irreversible damage to the photosynthetic apparatus was found with 60 min UVB probably due to severe ROS overproduction that decompensates the redox balance inducing UVB non-specific signaling. Moreover, 60 min UVB compromised Rubisco carboxylase activity and photosynthetic electron transport. Overall, these data suggest that quinoa modulates different response mechanisms depending on the UVB irradiation dosage.
Collapse
Affiliation(s)
- Thais Huarancca Reyes
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124, Pisa, Italy.
| | - Andrea Scartazza
- Institute of Agro-environmental and Forest Biology, National Research Council, Via Salaria km 29,300, Monterotondo Scalo (RM), 00016, Italy
| | - Antonella Castagna
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124, Pisa, Italy
| | - Eric G Cosio
- Sección Química, Pontificia Universidad Católica del Perú, Av. Universitaria 1801, Lima, Lima 32, Peru
| | - Annamaria Ranieri
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124, Pisa, Italy.,Interdepartmental Research Center "Nutraceuticals and Food for Health", University of Pisa, Via del Borghetto 80, 56124, Pisa, Italy
| | - Lorenzo Guglielminetti
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124, Pisa, Italy.,Interdepartmental Research Center "Nutraceuticals and Food for Health", University of Pisa, Via del Borghetto 80, 56124, Pisa, Italy
| |
Collapse
|
48
|
Ogbaga CC, Stepien P, Athar HUR, Ashraf M. Engineering Rubisco activase from thermophilic cyanobacteria into high-temperature sensitive plants. Crit Rev Biotechnol 2017; 38:559-572. [DOI: 10.1080/07388551.2017.1378998] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Chukwuma C. Ogbaga
- Department of Biological Sciences, Nile University of Nigeria, Abuja, Nigeria
| | - Piotr Stepien
- Department of Plant Nutrition, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland
| | - Habib-Ur-Rehman Athar
- Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, Pakistan
| | | |
Collapse
|
49
|
Hermida-Carrera C, Fares MA, Fernández Á, Gil-Pelegrín E, Kapralov MV, Mir A, Molins A, Peguero-Pina JJ, Rocha J, Sancho-Knapik D, Galmés J. Positively selected amino acid replacements within the RuBisCO enzyme of oak trees are associated with ecological adaptations. PLoS One 2017; 12:e0183970. [PMID: 28859145 PMCID: PMC5578625 DOI: 10.1371/journal.pone.0183970] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 08/15/2017] [Indexed: 12/29/2022] Open
Abstract
Phylogenetic analysis by maximum likelihood (PAML) has become the standard approach to study positive selection at the molecular level, but other methods may provide complementary ways to identify amino acid replacements associated with particular conditions. Here, we compare results of the decision tree (DT) model method with ones of PAML using the key photosynthetic enzyme RuBisCO as a model system to study molecular adaptation to particular ecological conditions in oaks (Quercus). We sequenced the chloroplast rbcL gene encoding RuBisCO large subunit in 158 Quercus species, covering about a third of the global genus diversity. It has been hypothesized that RuBisCO has evolved differentially depending on the environmental conditions and leaf traits governing internal gas diffusion patterns. Here, we show, using PAML, that amino acid replacements at the residue positions 95, 145, 251, 262 and 328 of the RuBisCO large subunit have been the subject of positive selection along particular Quercus lineages associated with the leaf traits and climate characteristics. In parallel, the DT model identified amino acid replacements at sites 95, 219, 262 and 328 being associated with the leaf traits and climate characteristics, exhibiting partial overlap with the results obtained using PAML.
Collapse
Affiliation(s)
- Carmen Hermida-Carrera
- Research Group on Plant Biology under Mediterranean Conditions, Universitat de les Illes Balears-INAGEA, Palma, Balearic Islands, Spain
| | - Mario A. Fares
- Integrative and Systems Biology Group, Department of Abiotic Stress, Instituto de Biología Molecular y Celular de Plantas (CSIC–UPV), Valencia, Spain
- Department of Genetics, University of Dublin, Trinity College Dublin, Dublin 2, Ireland
| | - Ángel Fernández
- Unidad de Recursos Forestales, C.I.T.A. de Aragón, Zaragoza, Spain
| | | | - Maxim V. Kapralov
- School of Natural and Environmental Sciences, Newcastle University, Newcastle-Upon-Tyne, United Kingdom
| | - Arnau Mir
- Computational Biology and Bioinformatics Research Group, Department of Mathematics and Computer Science, Universitat de les Illes Balears, Palma, Balearic Islands, Spain
| | - Arántzazu Molins
- Research Group on Plant Biology under Mediterranean Conditions, Universitat de les Illes Balears-INAGEA, Palma, Balearic Islands, Spain
| | | | - Jairo Rocha
- Computational Biology and Bioinformatics Research Group, Department of Mathematics and Computer Science, Universitat de les Illes Balears, Palma, Balearic Islands, Spain
| | | | - Jeroni Galmés
- Research Group on Plant Biology under Mediterranean Conditions, Universitat de les Illes Balears-INAGEA, Palma, Balearic Islands, Spain
| |
Collapse
|
50
|
Smolinska B, Szczodrowska A, Leszczynska J. Protein changes in Lepidium sativum L. exposed to Hg during soil phytoremediation. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2017; 19:765-773. [PMID: 28448157 DOI: 10.1080/15226514.2017.1284754] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Some investigations have been carried out in this study to find the best technique of soil reclamation in mercurypolluted soil. In this study, we examined Lepidium sativum L. as a plant useful for Hg phytoextraction. The simultaneous application of compost and thiosulfate was explored as a possible method of enhancing the process of phytoextraction. The results of the investigations of plant protein changes during assisted Hg phytoextraction were also provided. The results of the study show that combined use of compost and thiosulfate significantly increased both the total Hg accumulation and its translocation to aerial plant tissues. Plant protein analysis showed that L. sativum L. has the ability to respond to environmental stress condition by the activation of additional proteins. The additional proteins, like homocysteine methyltransferase, ribulose bisphosphate carboxylases (long and short chains), 14-3-3-like protein, and biosynthesis-related 40S ribosomal protein S15, were activated in plant shoots only in experiments carried out in Hg-polluted soil. There were no protein changes observed in plants exposed to compost and thiosulfate. It suggests that the combined use of compost and thiosulfate decreased Hg toxicity.
Collapse
Affiliation(s)
- Beata Smolinska
- a Department of Biotechnology and Food Sciences , Institute of General Food Chemistry, Lodz University of Technology , Lodz , Poland
| | - Agnieszka Szczodrowska
- a Department of Biotechnology and Food Sciences , Institute of General Food Chemistry, Lodz University of Technology , Lodz , Poland
| | - Joanna Leszczynska
- a Department of Biotechnology and Food Sciences , Institute of General Food Chemistry, Lodz University of Technology , Lodz , Poland
| |
Collapse
|