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Borysiuk K, Ostaszewska-Bugajska M, Kryzheuskaya K, Gardeström P, Szal B. Glyoxalase I activity affects Arabidopsis sensitivity to ammonium nutrition. PLANT CELL REPORTS 2022; 41:2393-2413. [PMID: 36242617 PMCID: PMC9700585 DOI: 10.1007/s00299-022-02931-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 09/26/2022] [Indexed: 06/16/2023]
Abstract
Elevated methylglyoxal levels contribute to ammonium-induced growth disorders in Arabidopsis thaliana. Methylglyoxal detoxification pathway limitation, mainly the glyoxalase I activity, leads to enhanced sensitivity of plants to ammonium nutrition. Ammonium applied to plants as the exclusive source of nitrogen often triggers multiple phenotypic effects, with severe growth inhibition being the most prominent symptom. Glycolytic flux increase, leading to overproduction of its toxic by-product methylglyoxal (MG), is one of the major metabolic consequences of long-term ammonium nutrition. This study aimed to evaluate the influence of MG metabolism on ammonium-dependent growth restriction in Arabidopsis thaliana plants. As the level of MG in plant cells is maintained by the glyoxalase (GLX) system, we analyzed MG-related metabolism in plants with a dysfunctional glyoxalase pathway. We report that MG detoxification, based on glutathione-dependent glyoxalases, is crucial for plants exposed to ammonium nutrition, and its essential role in ammonium sensitivity relays on glyoxalase I (GLXI) activity. Our results indicated that the accumulation of MG-derived advanced glycation end products significantly contributes to the incidence of ammonium toxicity symptoms. Using A. thaliana frostbite1 as a model plant that overcomes growth repression on ammonium, we have shown that its resistance to enhanced MG levels is based on increased GLXI activity and tolerance to elevated MG-derived advanced glycation end-product (MAGE) levels. Furthermore, our results show that glyoxalase pathway activity strongly affects cellular antioxidative systems. Under stress conditions, the disruption of the MG detoxification pathway limits the functioning of antioxidant defense. However, under optimal growth conditions, a defect in the MG detoxification route results in the activation of antioxidative systems.
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Affiliation(s)
- Klaudia Borysiuk
- Department of Plant Bioenergetics, Institute of Experimental Plant Biology and Biotechnology, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096, Warsaw, Poland
| | - Monika Ostaszewska-Bugajska
- Department of Plant Bioenergetics, Institute of Experimental Plant Biology and Biotechnology, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096, Warsaw, Poland
| | - Katsiaryna Kryzheuskaya
- Department of Plant Bioenergetics, Institute of Experimental Plant Biology and Biotechnology, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096, Warsaw, Poland
| | - Per Gardeström
- Department of Plant Physiology, Umeå Plant Science Centre, Umeå University, 90187, Umeå, Sweden
| | - Bożena Szal
- Department of Plant Bioenergetics, Institute of Experimental Plant Biology and Biotechnology, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096, Warsaw, Poland.
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Mensi F, Ben Ghedifa A, Rajhi H. Effects of seawater sulfur starvation and enrichment on Gracilaria gracilis growth and biochemical composition. Sci Rep 2022; 12:11095. [PMID: 35773380 PMCID: PMC9247063 DOI: 10.1038/s41598-022-15303-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 06/22/2022] [Indexed: 11/09/2022] Open
Abstract
The genus Gracilaria, largest biomass producer in coastal regions, encompasses a wide range of species including Gracilaria gracilis. Nowadays, there is a spate of interest in its culture in lagoon where the water sulfate concentration is variable. A laboratory culture was carried out to determine the sulfate concentration effect on their growth as well as their biochemical composition, which were 2.5, 27 or 50 mM, referred to as SSS (sulfur starved seawater), SW (seawater) and SES (sulfur enriched seawater).We found that the sulfate content of the surrounding medium is a key parameter influencing both the alga growth and its composition. However, seawater proved to be the most suitable environment to sustain alga growth, proteins, R-phycoerythrin and agar yields, but sulfur enrichment and starvation affects them. The sulfate degree of agar and therefore its quality is related to the medium sulfate concentration. We conclude that sulfur starvation (2.5 mM) for three weeks, led to severe growth retardation, lower agar yield and quality and indicated the limit potential of G. gracilis for mariculture under these conditions. These results demonstrated that the success of G. gracilis culture in the lagoon is feasible if sulfate concentration is closer to that of seawater.
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Affiliation(s)
- Fethi Mensi
- Institut National des Sciences et Technologies de la Mer-Centre Kheiredine, 29 Rue Général Kheiredine, 2015, Le Kram, Tunisie.
| | - Aziz Ben Ghedifa
- Institut National des Sciences et Technologies de la Mer-Centre Kheiredine, 29 Rue Général Kheiredine, 2015, Le Kram, Tunisie
| | - Hayfa Rajhi
- Institut National des Sciences et Technologies de la Mer-Centre Kheiredine, 29 Rue Général Kheiredine, 2015, Le Kram, Tunisie
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Burian M, Podgórska A, Ostaszewska-Bugajska M, Szal B. Respiratory Burst Oxidase Homolog D as a Modulating Component of Oxidative Response under Ammonium Toxicity. Antioxidants (Basel) 2022; 11:antiox11040703. [PMID: 35453389 PMCID: PMC9031508 DOI: 10.3390/antiox11040703] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/30/2022] [Accepted: 03/30/2022] [Indexed: 12/25/2022] Open
Abstract
Delayed growth, a visible phenotypic component of the so-called ammonium syndrome, occurs when ammonium is the sole inorganic nitrogen source. Previously, we have shown that modification of apoplastic reactive oxygen species (apROS) metabolism is a key factor contributing to plant growth retardation under ammonium nutrition. Here, we further analyzed the changes in apROS metabolism in transgenic plants with disruption of the D isoform of the respiratory burst oxidase homolog (RBOH) that is responsible for apROS production. Ammonium-grown Arabidopsisrbohd plants are characterized by up to 50% lower contents of apoplastic superoxide and hydrogen peroxide. apROS sensing markers such as OZF1 and AIR12 were downregulated, and the ROS-responsive signaling pathway, including MPK3, was also downregulated in rbohd plants cultivated using ammonium as the sole nitrogen source. Additionally, the expression of the cell-wall-integrity marker FER and peroxidases 33 and 34 was decreased. These modifications may contribute to phenomenon wherein ammonium inhibited the growth of transgenic plants to a greater extent than that of wild-type plants. Overall, this study indicated that due to disruption of apROS metabolism, rbohd plants cannot adjust to ammonium toxicity and are more sensitive to these conditions.
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Abstract
Mitochondria actively participate in oxygenic metabolism and are one of the major sources of reactive oxygen species (ROS) production in plant cells. However, instead of measuring ROS concentrations in organelles it is more worthwhile to observe active ROS generation or downstream oxidation products, because the steady state level of ROS is easily buffered. Here, we describe how to measure the in vitro production of superoxide anion radicals (O2·-) by mitochondria and the release of O2·- into the cytosol. A method to determine glutathione, which is the most abundant mitochondrial low-mass antioxidant, is presented since changes in the redox state of glutathione can be indicative of the oxidative action of ROS. The identification of oxidative damage to mitochondrial components is the ultimate symptom that ROS homeostasis is not under control. We present how to determine the extent of oxidation of membrane lipids and the carbonylation of mitochondrial proteins. In summary, oxidative stress symptoms have to be analyzed at different levels, including ROS production, scavenging capacity, and signs of destruction, which only together can be considered markers of mitochondrial ROS status.
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Affiliation(s)
- Monika Ostaszewska-Bugajska
- Department of Plant Bioenergetics, Institute of Experimental Plant Biology and Biotechnology, Faculty of Biology, University of Warsaw, Warsaw, Poland.
| | - Anna Podgórska
- Department of Plant Bioenergetics, Institute of Experimental Plant Biology and Biotechnology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Bożena Szal
- Department of Plant Bioenergetics, Institute of Experimental Plant Biology and Biotechnology, Faculty of Biology, University of Warsaw, Warsaw, Poland.
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Henriet C, Aimé D, Térézol M, Kilandamoko A, Rossin N, Combes-Soia L, Labas V, Serre RF, Prudent M, Kreplak J, Vernoud V, Gallardo K. Water stress combined with sulfur deficiency in pea affects yield components but mitigates the effect of deficiency on seed globulin composition. JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:4287-4304. [PMID: 30855667 PMCID: PMC6698706 DOI: 10.1093/jxb/erz114] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 02/20/2019] [Accepted: 02/28/2019] [Indexed: 05/08/2023]
Abstract
Water stress and sulfur (S) deficiency are two constraints increasingly faced by crops due to climate change and low-input agricultural practices. To investigate their interaction in the grain legume pea (Pisum sativum), sulfate was depleted at the mid-vegetative stage and a moderate 9-d water stress period was imposed during the early reproductive phase. The combination of the stresses impeded reproductive processes in a synergistic manner, reducing seed weight and seed number, and inducing seed abortion, which highlighted the paramount importance of sulfur for maintaining seed yield components under water stress. On the other hand, the moderate water stress mitigated the negative effect of sulfur deficiency on the accumulation of S-rich globulins (11S) in seeds, probably due to a lower seed sink strength for nitrogen, enabling a readjustment of the ratio of S-poor (7S) to 11S globulins. Transcriptome analysis of developing seeds at the end of the combined stress period indicated that similar biological processes were regulated in response to sulfur deficiency and to the combined stress, but that the extent of the transcriptional regulation was greater under sulfur deficiency. Seeds from plants subjected to the combined stresses showed a specific up-regulation of a set of transcription factor and SUMO ligase genes, indicating the establishment of unique regulatory processes when sulfur deficiency is combined with water stress.
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Affiliation(s)
- Charlotte Henriet
- Agroécologie, AgroSup Dijon, INRA, Université Bourgogne Franche-Comté, Dijon, France
| | - Delphine Aimé
- Agroécologie, AgroSup Dijon, INRA, Université Bourgogne Franche-Comté, Dijon, France
| | - Morgane Térézol
- Agroécologie, AgroSup Dijon, INRA, Université Bourgogne Franche-Comté, Dijon, France
| | - Anderson Kilandamoko
- Agroécologie, AgroSup Dijon, INRA, Université Bourgogne Franche-Comté, Dijon, France
| | - Nadia Rossin
- Agroécologie, AgroSup Dijon, INRA, Université Bourgogne Franche-Comté, Dijon, France
| | - Lucie Combes-Soia
- Physiologie de la Reproduction et des Comportements (PRC) UMR85, INRA, CNRS, Université de Tours, IFCE, Nouzilly, France
| | - Valerie Labas
- Physiologie de la Reproduction et des Comportements (PRC) UMR85, INRA, CNRS, Université de Tours, IFCE, Nouzilly, France
| | - Rémy-Félix Serre
- GeT-PlaGe, US INRA 1426, INRA Auzeville, Castanet-Tolosan, Cedex, France
| | - Marion Prudent
- Agroécologie, AgroSup Dijon, INRA, Université Bourgogne Franche-Comté, Dijon, France
| | - Jonathan Kreplak
- Agroécologie, AgroSup Dijon, INRA, Université Bourgogne Franche-Comté, Dijon, France
| | - Vanessa Vernoud
- Agroécologie, AgroSup Dijon, INRA, Université Bourgogne Franche-Comté, Dijon, France
| | - Karine Gallardo
- Agroécologie, AgroSup Dijon, INRA, Université Bourgogne Franche-Comté, Dijon, France
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Suppression of External NADPH Dehydrogenase-NDB1 in Arabidopsis thaliana Confers Improved Tolerance to Ammonium Toxicity via Efficient Glutathione/Redox Metabolism. Int J Mol Sci 2018; 19:ijms19051412. [PMID: 29747392 PMCID: PMC5983774 DOI: 10.3390/ijms19051412] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 05/01/2018] [Accepted: 05/02/2018] [Indexed: 01/01/2023] Open
Abstract
Environmental stresses, including ammonium (NH4+) nourishment, can damage key mitochondrial components through the production of surplus reactive oxygen species (ROS) in the mitochondrial electron transport chain. However, alternative electron pathways are significant for efficient reductant dissipation in mitochondria during ammonium nutrition. The aim of this study was to define the role of external NADPH-dehydrogenase (NDB1) during oxidative metabolism of NH4+-fed plants. Most plant species grown with NH4+ as the sole nitrogen source experience a condition known as “ammonium toxicity syndrome”. Surprisingly, transgenic Arabidopsis thaliana plants suppressing NDB1 were more resistant to NH4+ treatment. The NDB1 knock-down line was characterized by milder oxidative stress symptoms in plant tissues when supplied with NH4+. Mitochondrial ROS accumulation, in particular, was attenuated in the NDB1 knock-down plants during NH4+ treatment. Enhanced antioxidant defense, primarily concerning the glutathione pool, may prevent ROS accumulation in NH4+-grown NDB1-suppressing plants. We found that induction of glutathione peroxidase-like enzymes and peroxiredoxins in the NDB1-surpressing line contributed to lower ammonium-toxicity stress. The major conclusion of this study was that NDB1 suppression in plants confers tolerance to changes in redox homeostasis that occur in response to prolonged ammonium nutrition, causing cross tolerance among plants.
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