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Jia Y, Yin X, Zhao J, Pan Y, Jiang B, Liu Q, Li Y. Differential physiological responses and tolerance to potentially toxic elements in Primula forbesii Franch. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:67200-67216. [PMID: 37106307 DOI: 10.1007/s11356-023-27259-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 04/23/2023] [Indexed: 05/25/2023]
Abstract
Environmental pollution caused by potentially toxic elements (PTEs) has become a global problem that endangers environmental sustainability due to industrial, agricultural, and urban pollution. Primula forbesii Franch. (a synonym of Primula filipes G. Watt.) is a biennial flower native to China with excellent stress resistance and ornamental value. In this study, we examined the phenotypic traits, growth indexes, and physiological properties of P. forbesii in response to five representative PTEs (Cd, Ni, Cr(III), Cu, and Zn) under hydroponic culture conditions. High concentrations of Zn and Cr had little effect on the growth and physiological properties of P. forbesii, indicating that the species has strong tolerance to Zn and Cr stress. Alternatively, high concentrations of Cd, Ni, and Cu seriously affected plant growth and development, resulting in leaf chlorosis and even death, and therefore may have a serious negative impact on the growth of P. forbesii. However, activity levels of some antioxidant enzymes and osmotic regulatory substances remained high, indicating that P. forbesii resisted PTE stress by regulating physiological and biochemical metabolism to a certain extent. Furthermore, principal component analysis and membership function were used to comprehensively evaluate P. forbesii resistance to PTEs. These analyses revealed that P. forbesii exhibits distinct sensitivities and physiological responses to different PTEs and suggested that the resistance to five PTEs in decreasing order is Zn > Cr > Cd > Cu > Ni. These results provide a theoretical basis for the future application of P. forbesii in environments with PTE pollution and may expand its practical utilization.
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Affiliation(s)
- Yin Jia
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China.
| | - Xiancai Yin
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Jian Zhao
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yuanzhi Pan
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Beibei Jiang
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Qinglin Liu
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yifeng Li
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China
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2
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Hafner A, Mackenzie S. Re-analysis of publicly available methylomes using signal detection yields new information. Sci Rep 2023; 13:3307. [PMID: 36849495 PMCID: PMC9971211 DOI: 10.1038/s41598-023-30422-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 02/22/2023] [Indexed: 03/01/2023] Open
Abstract
Cytosine methylation is an epigenetic mark that participates in regulation of gene expression and chromatin stability in plants. Advancements in whole genome sequencing technologies have enabled investigation of methylome dynamics under different conditions. However, the computational methods for analyzing bisulfite sequence data have not been unified. Contention remains in the correlation of differentially methylated positions with the investigated treatment and exclusion of noise, inherent to these stochastic datasets. The prevalent approaches apply Fisher's exact test, logistic, or beta regression, followed by an arbitrary cut-off for differences in methylation levels. A different strategy, the MethylIT pipeline, utilizes signal detection to determine cut-off based on a fitted generalized gamma probability distribution of methylation divergence. Re-analysis of publicly available BS-seq data from two epigenetic studies in Arabidopsis and applying MethylIT revealed additional, previously unreported results. Methylome repatterning in response to phosphate starvation was confirmed to be tissue-specific and included phosphate assimilation genes in addition to sulfate metabolism genes not implicated in the original study. During seed germination plants undergo major methylome reprogramming and use of MethylIT allowed us to identify stage-specific gene networks. We surmise from these comparative studies that robust methylome experiments must account for data stochasticity to achieve meaningful functional analyses.
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Affiliation(s)
- Alenka Hafner
- grid.29857.310000 0001 2097 4281Department of Biology, The Pennsylvania State University, 362 Frear N Bldg, University Park, PA 16802 USA ,grid.29857.310000 0001 2097 4281Intercollege Graduate Degree Program in Plant Biology, The Pennsylvania State University, University Park, PA USA
| | - Sally Mackenzie
- Department of Biology, The Pennsylvania State University, 362 Frear N Bldg, University Park, PA, 16802, USA. .,Department of Plant Science, The Pennsylvania State University, University Park, PA, USA.
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Vigani G, Islam M, Cavallaro V, Nocito FF, Maffei ME. Geomagnetic Field (GMF)-Dependent Modulation of Iron-Sulfur Interplay in Arabidopsis thaliana. Int J Mol Sci 2021; 22:ijms221810166. [PMID: 34576328 PMCID: PMC8469209 DOI: 10.3390/ijms221810166] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 09/18/2021] [Accepted: 09/19/2021] [Indexed: 11/16/2022] Open
Abstract
The geomagnetic field (GMF) is an environmental factor affecting the mineral nutrient uptake of plants and a contributing factor for efficient iron (Fe) uptake in Arabidopsis seedlings. Understanding the mechanisms underlining the impact of the environment on nutrient homeostasis in plants requires disentangling the complex interactions occurring among nutrients. In this study we investigated the effect of GMF on the interplay between iron (Fe) and sulfur (S) by exposing Arabidopsis thaliana plants grown under single or combined Fe and S deficiency, to near-null magnetic field (NNMF) conditions. Mineral analysis was performed by ICP-MS and capillary electrophoresis, whereas the expression of several genes involved in Fe and S metabolism and transport was assayed by qRT-PCR. The results show that NNMF differentially affects (i) the expression of some Fe- and S-responsive genes and (ii) the concentration of metals in plants, when compared with GMF. In particular, we observed that Cu content alteration in plant roots depends on the simultaneous variation of nutrient availability (Fe and S) and MF intensity (GMF and NNMF). Under S deficiency, NNMF-exposed plants displayed variations of Cu uptake, as revealed by the expression of the SPL7 and miR408 genes, indicating that S availability is an important factor in maintaining Cu homeostasis under different MF intensities. Overall, our work suggests that the alteration of metal homeostasis induced by Fe and/or S deficiency in reduced GMF conditions impacts the ability of plants to grow and develop.
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Affiliation(s)
- Gianpiero Vigani
- Department of Life Sciences and Systems Biology, Plant Physiology Unit, University of Turin, Via Quarello 15/a, 10135 Turin, Italy; (M.I.); (M.E.M.)
- Correspondence: ; Tel.: +39-011-6706360
| | - Monirul Islam
- Department of Life Sciences and Systems Biology, Plant Physiology Unit, University of Turin, Via Quarello 15/a, 10135 Turin, Italy; (M.I.); (M.E.M.)
| | - Viviana Cavallaro
- Dipartimento di Scienze Agrarie e Ambientali—Produzione, Territorio, Agroenergia, Università degli Studi di Milano, 20133 Milano, Italy; (V.C.); (F.F.N.)
| | - Fabio F. Nocito
- Dipartimento di Scienze Agrarie e Ambientali—Produzione, Territorio, Agroenergia, Università degli Studi di Milano, 20133 Milano, Italy; (V.C.); (F.F.N.)
| | - Massimo E. Maffei
- Department of Life Sciences and Systems Biology, Plant Physiology Unit, University of Turin, Via Quarello 15/a, 10135 Turin, Italy; (M.I.); (M.E.M.)
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4
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Jobe TO, Yu Q, Hauser F, Xie Q, Meng Y, Maassen T, Kopriva S, Schroeder JI. The SLIM1 transcription factor is required for arsenic resistance in Arabidopsis thaliana. FEBS Lett 2021; 595:1696-1707. [PMID: 33960401 DOI: 10.1002/1873-3468.14096] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 04/21/2021] [Indexed: 11/05/2022]
Abstract
The transcriptional regulators of arsenic-induced gene expression remain largely unknown. Sulfur assimilation is tightly linked with arsenic detoxification. Here, we report that mutant alleles in the SLIM1 transcription factor are substantially more sensitive to arsenic than cadmium. Arsenic treatment caused high levels of oxidative stress in the slim1 mutants, and slim1 alleles were impaired in both thiol accumulation and sulfate accumulation. We further found enhanced arsenic accumulation in roots of slim1 mutants. Transcriptome analyses indicate an important role for SLIM1 in arsenic-induced tolerance mechanisms. The present study identifies the SLIM1 transcription factor as an essential component in arsenic tolerance and arsenic-induced gene expression. Our results suggest that the severe arsenic sensitivity of the slim1 mutants is caused by altered redox status.
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Affiliation(s)
- Timothy O Jobe
- Biocenter, Botanical Institute, University of Cologne, Germany
| | - Qi Yu
- Division of Biological Sciences, Cell and Developmental Biology Section, University of California, La Jolla, CA, USA.,School of Life Sciences, and Hubei Key Laboratory of Genetic Regulation and Integrative Biology, Central China Normal University, Wuhan, China
| | - Felix Hauser
- Division of Biological Sciences, Cell and Developmental Biology Section, University of California, La Jolla, CA, USA
| | - Qingqing Xie
- Division of Biological Sciences, Cell and Developmental Biology Section, University of California, La Jolla, CA, USA.,Plant Molecular and Cellular Biology Laboratory, Salk Institute for Biological Studies, La Jolla, CA, USA
| | - Yuan Meng
- Division of Biological Sciences, Cell and Developmental Biology Section, University of California, La Jolla, CA, USA
| | - Tim Maassen
- Biocenter, Botanical Institute, University of Cologne, Germany
| | - Stanislav Kopriva
- Biocenter, Botanical Institute, University of Cologne, Germany.,Institute for Plant Sciences and Cluster of Excellence on Plant Sciences (CEPLAS), University of Cologne, Germany
| | - Julian I Schroeder
- Division of Biological Sciences, Cell and Developmental Biology Section, University of California, La Jolla, CA, USA
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Chea L, Meijide A, Meinen C, Pawelzik E, Naumann M. Cultivar-Dependent Responses in Plant Growth, Leaf Physiology, Phosphorus Use Efficiency, and Tuber Quality of Potatoes Under Limited Phosphorus Availability Conditions. FRONTIERS IN PLANT SCIENCE 2021; 12:723862. [PMID: 34527013 PMCID: PMC8435887 DOI: 10.3389/fpls.2021.723862] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 07/22/2021] [Indexed: 05/10/2023]
Abstract
The limited availability of phosphorus (P) in soils causes a major constraint in the productivity of potatoes, which requires increased knowledge of plant adaptation responses in this condition. In this study, six potato cultivars, namely, Agria, Lady Claire, Milva, Lilly, Sieglinde, and Verdi, were assessed for their responses on plant growth, leaf physiology, P use efficiency (PUE), and tuber quality with three P levels (Plow, Pmed, and Phigh). The results reveal a significant variation in the cultivars in response to different P availabilities. P-efficient cultivars, Agria, Milva, and Lilly, possessed substantial plant biomass, tuber yield, and high P uptake efficiency (PUpE) under low P supply conditions. The P-inefficient cultivars, Lady Claire, Sieglinde, and Verdi, could not produce tubers under P deprivation conditions, as well as the ability to efficiently uptake P under low-level conditions, but they were efficient in P uptake under high soil P conditions. Improved PUpE is important for plant tolerance with limited P availability, which results in the efficient use of the applied P. At the leaf level, increased accumulations of nitrate, sulfate, sucrose, and proline are necessary for a plant to acclimate to P deficiency-induced stress and to mobilize leaf inorganic phosphate to increase internal PUE and photosynthesis. The reduction in plant biomass and tuber yield under P-deficient conditions could be caused by reduced CO2 assimilation. Furthermore, P deficiency significantly reduced tuber yield, dry matter, and starch concentration in Agria, Milva, and Lilly. However, contents of tuber protein, sugars, and minerals, as well as antioxidant capacity, were enhanced under these conditions in these cultivars. These results highlight the important traits contributing to potato plant tolerance under P-deficient conditions and indicate an opportunity to improve the P efficiency and tuber quality of potatoes under deficient conditions using more efficient cultivars. Future research to evaluate molecular mechanisms related to P and sucrose translocation, and minimize tuber yield reduction under limited P availability conditions is necessary.
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Affiliation(s)
- Leangsrun Chea
- Division of Quality of Plant Products, Department of Crop Sciences, University of Goettingen, Goettingen, Germany
| | - Ana Meijide
- Division of Agronomy, Department of Crop Sciences, University of Goettingen, Goettingen, Germany
| | - Catharina Meinen
- Division of Agronomy, Department of Crop Sciences, University of Goettingen, Goettingen, Germany
| | - Elke Pawelzik
- Division of Quality of Plant Products, Department of Crop Sciences, University of Goettingen, Goettingen, Germany
| | - Marcel Naumann
- Division of Quality of Plant Products, Department of Crop Sciences, University of Goettingen, Goettingen, Germany
- *Correspondence: Marcel Naumann
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Canales J, Uribe F, Henríquez-Valencia C, Lovazzano C, Medina J, Vidal EA. Transcriptomic analysis at organ and time scale reveals gene regulatory networks controlling the sulfate starvation response of Solanum lycopersicum. BMC PLANT BIOLOGY 2020; 20:385. [PMID: 32831040 PMCID: PMC7444261 DOI: 10.1186/s12870-020-02590-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 08/10/2020] [Indexed: 05/17/2023]
Abstract
BACKGROUND Sulfur is a major component of biological molecules and thus an essential element for plants. Deficiency of sulfate, the main source of sulfur in soils, negatively influences plant growth and crop yield. The effect of sulfate deficiency on plants has been well characterized at the physiological, transcriptomic and metabolomic levels in Arabidopsis thaliana and a limited number of crop plants. However, we still lack a thorough understanding of the molecular mechanisms and regulatory networks underlying sulfate deficiency in most plants. In this work we analyzed the impact of sulfate starvation on the transcriptome of tomato plants to identify regulatory networks and key transcriptional regulators at a temporal and organ scale. RESULTS Sulfate starvation reduces the growth of roots and leaves which is accompanied by major changes in the organ transcriptome, with the response being temporally earlier in roots than leaves. Comparative analysis showed that a major part of the Arabidopsis and tomato transcriptomic response to sulfate starvation is conserved between these plants and allowed for the identification of processes specifically regulated in tomato at the transcript level, including the control of internal phosphate levels. Integrative gene network analysis uncovered key transcription factors controlling the temporal expression of genes involved in sulfate assimilation, as well as cell cycle, cell division and photosynthesis during sulfate starvation in tomato roots and leaves. Interestingly, one of these transcription factors presents a high identity with SULFUR LIMITATION1, a central component of the sulfate starvation response in Arabidopsis. CONCLUSIONS Together, our results provide the first comprehensive catalog of sulfate-responsive genes in tomato, as well as novel regulatory targets for future functional analyses in tomato and other crops.
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Affiliation(s)
- Javier Canales
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile.
- Millennium Institute for Integrative Biology (iBio), Santiago, Chile.
| | - Felipe Uribe
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
- Millennium Institute for Integrative Biology (iBio), Santiago, Chile
| | - Carlos Henríquez-Valencia
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
- Millennium Institute for Integrative Biology (iBio), Santiago, Chile
| | - Carlos Lovazzano
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
- Millennium Institute for Integrative Biology (iBio), Santiago, Chile
| | - Joaquín Medina
- Centro de Biotecnología y Genómica de Plantas (CBGP), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Universidad Politécnica de Madrid (UPM), Madrid, Spain
| | - Elena A Vidal
- Millennium Institute for Integrative Biology (iBio), Santiago, Chile.
- Centro de Genómica y Bioinformática, Facultad de Ciencias, Universidad Mayor, Santiago, Chile.
- Escuela de Biotecnología, Facultad de Ciencias, Universidad Mayor, Santiago, Chile.
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Cominelli E, Pilu R, Sparvoli F. Phytic Acid and Transporters: What Can We Learn from low phytic acid Mutants. PLANTS 2020; 9:plants9010069. [PMID: 31948109 PMCID: PMC7020491 DOI: 10.3390/plants9010069] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 12/23/2019] [Accepted: 01/01/2020] [Indexed: 01/22/2023]
Abstract
Phytic acid has two main roles in plant tissues: Storage of phosphorus and regulation of different cellular processes. From a nutritional point of view, it is considered an antinutritional compound because, being a cation chelator, its presence reduces mineral bioavailability from the diet. In recent decades, the development of low phytic acid (lpa) mutants has been an important goal for nutritional seed quality improvement, mainly in cereals and legumes. Different lpa mutations affect phytic acid biosynthetic genes. However, other lpa mutations isolated so far, affect genes coding for three classes of transporters: A specific group of ABCC type vacuolar transporters, putative sulfate transporters, and phosphate transporters. In the present review, we summarize advances in the characterization of these transporters in cereals and legumes. Particularly, we describe genes, proteins, and mutants for these different transporters, and we report data of in silico analysis aimed at identifying the putative orthologs in some other cereal and legume species. Finally, we comment on the advantage of using such types of mutants for crop biofortification and on their possible utility to unravel links between phosphorus and sulfur metabolism (phosphate and sulfate homeostasis crosstalk).
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Affiliation(s)
- Eleonora Cominelli
- Institute of Agricultural Biology and Biotechnology, Consiglio Nazionale delle Ricerche, Via E. Bassini 15, 20133 Milan, Italy;
- Correspondence: ; Tel.: +39-022-369-9421
| | - Roberto Pilu
- Department of Agricultural and Environmental Sciences—Production Landscape, Agroenergy Università degli Studi di Milano, Via G. Celoria 2, 20133 Milan, Italy;
| | - Francesca Sparvoli
- Institute of Agricultural Biology and Biotechnology, Consiglio Nazionale delle Ricerche, Via E. Bassini 15, 20133 Milan, Italy;
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Sacchi GA, Nocito FF. Plant Sulfate Transporters in the Low Phytic Acid Network: Some Educated Guesses. PLANTS (BASEL, SWITZERLAND) 2019; 8:E616. [PMID: 31861241 PMCID: PMC6963184 DOI: 10.3390/plants8120616] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 12/11/2019] [Accepted: 12/16/2019] [Indexed: 12/22/2022]
Abstract
A few new papers report that mutations in some genes belonging to the group 3 of plant sulfate transporter family result in low phytic acid phenotypes, drawing novel strategies and approaches for engineering the low-phytate trait in cereal grains. Here, we shortly review the current knowledge on phosphorus/sulfur interplay and sulfate transport regulation in plants, to critically discuss some hypotheses that could help in unveiling the physiological links between sulfate transport and phosphorus accumulation in seeds.
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Affiliation(s)
| | - Fabio Francesco Nocito
- Dipartimento di Scienze Agrarie e Ambientali—Produzione, Territorio, Agroenergia, Università degli Studi di Milano, 20133 Milano, Italy;
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Individual versus Combinatorial Effects of Silicon, Phosphate, and Iron Deficiency on the Growth of Lowland and Upland Rice Varieties. Int J Mol Sci 2018; 19:ijms19030899. [PMID: 29562647 PMCID: PMC5877760 DOI: 10.3390/ijms19030899] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Revised: 03/14/2018] [Accepted: 03/14/2018] [Indexed: 12/03/2022] Open
Abstract
Mineral nutrient homeostasis is essential for plant growth and development. Recent research has demonstrated that the occurrence of interactions among the mechanisms regulating the homeostasis of different nutrients in plants is a general rule rather than an exception. Therefore, it is important to understand how plants regulate the homeostasis of these elements and how multiple mineral nutrient signals are wired to influence plant growth. Silicon (Si) is not directly involved in plant metabolism but it is an essential element for a high and sustainable production of crops, especially rice, because of its high content in the total shoot dry weight. Although some mechanisms underlying the role of Si in plants responses to both abiotic and biotic stresses have been proposed, the involvement of Si in regulating plant growth in conditions where the availability of essential macro- and micronutrients changes remains poorly investigated. In this study, the existence of an interaction between Si, phosphate (Pi), and iron (Fe) availability was examined in lowland (Suphanburi 1, SPR1) and upland (Kum Hom Chiang Mai University, KH CMU) rice varieties. The effect of Si and/or Fe deficiency on plant growth, Pi accumulation, Pi transporter expression (OsPHO1;2), and Pi root-to-shoot translocation in these two rice varieties grown under individual or combinatorial nutrient stress conditions were determined. The phenotypic, physiological, and molecular data of this study revealed an interesting tripartite Pi-Fe-Si homeostasis interaction that influences plant growth in contrasting manners in the two rice varieties. These results not only reveal the involvement of Si in modulating rice growth through an interaction with essential micro- and macronutrients, but, more importantly, they opens new research avenues to uncover the molecular basis of Pi-Fe-Si signaling crosstalk in plants.
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Sinha V, Pakshirajan K, Manikandan NA, Chaturvedi R. Kinetics, biochemical and factorial analysis of chromium uptake in a multi-ion system by Tradescantia pallida (Rose) D. R. Hunt. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2017; 19:1007-1016. [PMID: 28436682 DOI: 10.1080/15226514.2017.1319323] [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
Discharge of wastewater from electroplating and leather industries is a major concern for the environment due to the presence of toxic Cr6+ and other ions, such as sulfate, nitrate, phosphate, etc. This study evaluated the potential of Tradescantia pallida, a plant species known for its Cr bioaccumulation, for the simultaneous removal of Cr6+, SO42-, NO3-, and PO43-. The effect of different co-ions on Cr6+ removal by T. pallida was examined following the Plackett-Burman design of experiments carried out under batch hydroponics conditions. The results revealed a maximum removal of 84% Cr6+, 87% SO42-, 94% NO3- and 100% PO43- without any phytotoxic effect on the plant for an initial Cr6+ concentration in the range 5-20 mg L-1. SO42- and NO3- enhanced Cr uptake at a high initial Cr concentration (20 mg L-1), whereas PO43- did not affect Cr uptake both at high and low initial Cr concentrations. The Cr6+ removal kinetics in the presence of different ions was well described by the pseudo-second-order kinetic model which revealed that both biosorption and bioaccumulation of the metal played an important role in Cr6+ removal. Increase in the total carbohydrate and protein content of the plant following Cr6+ and co-ions exposure indicated a good tolerance of the plant toward Cr6+ toxicity. Furthermore, enhancement in the lipid peroxidation and catalase activity in T. pallida upon Cr6+ exposure revealed a maximum stress-induced condition in the plant. Overall, this study demonstrated a very good potential of the plant T. pallida for Cr6+ removal from wastewater even in the presence of co-ions.
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Affiliation(s)
- Vibha Sinha
- a Department of Biosciences and Bioengineering , Indian Institute of Technology , Guwahati , Assam , India
| | - Kannan Pakshirajan
- a Department of Biosciences and Bioengineering , Indian Institute of Technology , Guwahati , Assam , India
| | - N Arul Manikandan
- a Department of Biosciences and Bioengineering , Indian Institute of Technology , Guwahati , Assam , India
| | - Rakhi Chaturvedi
- a Department of Biosciences and Bioengineering , Indian Institute of Technology , Guwahati , Assam , India
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11
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Luan M, Tang RJ, Tang Y, Tian W, Hou C, Zhao F, Lan W, Luan S. Transport and homeostasis of potassium and phosphate: limiting factors for sustainable crop production. JOURNAL OF EXPERIMENTAL BOTANY 2017; 68:3091-3105. [PMID: 27965362 DOI: 10.1093/jxb/erw444] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Potassium (K) and phosphate (Pi) are both macronutrients essential for plant growth and crop production, but the unrenewable resources of phosphorus rock and potash have become limiting factors for food security. One critical measure to help solve this problem is to improve nutrient use efficiency (NUE) in plants by understanding and engineering genetic networks for ion uptake, translocation, and storage. Plants have evolved multiple systems to adapt to various nutrient conditions for growth and production. Within the NUE networks, transport proteins and their regulators are the primary players for maintaining nutrient homeostasis and could be utilized to engineer high NUE traits in crop plants. A large number of publications have detailed K+ and Pi transport proteins in plants over the past three decades. Meanwhile, the discovery and validation of their regulatory mechanisms are fast-track topics for research. Here, we provide an overview of K+ and Pi transport proteins and their regulatory mechanisms, which participate in the uptake, translocation, storage, and recycling of these nutrients in plants.
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Affiliation(s)
- Mingda Luan
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University-Nanjing Forestry University Joint Institute for Plant Molecular Biology, School of Life Sciences, Nanjing University, Nanjing 210093, PR China
| | - Ren-Jie Tang
- Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720, USA
| | - Yumei Tang
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University-Nanjing Forestry University Joint Institute for Plant Molecular Biology, School of Life Sciences, Nanjing University, Nanjing 210093, PR China
| | - Wang Tian
- Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720, USA
| | - Congong Hou
- Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720, USA
| | - Fugeng Zhao
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University-Nanjing Forestry University Joint Institute for Plant Molecular Biology, School of Life Sciences, Nanjing University, Nanjing 210093, PR China
| | - Wenzhi Lan
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University-Nanjing Forestry University Joint Institute for Plant Molecular Biology, School of Life Sciences, Nanjing University, Nanjing 210093, PR China
| | - Sheng Luan
- Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720, USA
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Secco D, Bouain N, Rouached A, Prom-U-Thai C, Hanin M, Pandey AK, Rouached H. Phosphate, phytate and phytases in plants: from fundamental knowledge gained in Arabidopsis to potential biotechnological applications in wheat. Crit Rev Biotechnol 2017; 37:898-910. [PMID: 28076998 DOI: 10.1080/07388551.2016.1268089] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Phosphorus (P) is an essential macronutrient for all living organisms. In plants, P is taken up from the rhizosphere by the roots mainly as inorganic phosphate (Pi), which is required in large and sufficient quantities to maximize crop yields. In today's agricultural society, crop yield is mostly ensured by the excessive use of Pi fertilizers, a costly practice neither eco-friendly or sustainable. Therefore, generating plants with improved P use efficiency (PUE) is of major interest. Among the various strategies employed to date, attempts to engineer genetically modified crops with improved capacity to utilize phytate (PA), the largest soil P form and unfortunately not taken up by plants, remains a key challenge. To meet these challenges, we need a better understanding of the mechanisms regulating Pi sensing, signaling, transport and storage in plants. In this review, we summarize the current knowledge on these aspects, which are mainly gained from investigations conducted in Arabidopsis thaliana, and we extended it to those available on an economically important crop, wheat. Strategies to enhance the PA use, through the use of bacterial or fungal phytases and other attempts of reducing seed PA levels, are also discussed. We critically review these data in terms of their potential for use as a technology for genetic manipulation of PUE in wheat, which would be both economically and environmentally beneficial.
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Affiliation(s)
- David Secco
- a Biochimie et Physiologie Moléculaire des Plantes , CNRS, INRA, Montpellier SupAgro, UM , Montpellier , France
| | - Nadia Bouain
- a Biochimie et Physiologie Moléculaire des Plantes , CNRS, INRA, Montpellier SupAgro, UM , Montpellier , France
| | - Aida Rouached
- a Biochimie et Physiologie Moléculaire des Plantes , CNRS, INRA, Montpellier SupAgro, UM , Montpellier , France
| | - Chanakan Prom-U-Thai
- b Agronomy Division, Department of Plant and Soil Sciences, Faculty of Agriculture , Chiang Mai University , Chiang Mai , Thailand
| | - Moez Hanin
- c Laboratoire de Biotechnologie et Amélioration des Plantes , Centre de Biotechnologie de Sfax , Sfax , Tunisie
| | - Ajay K Pandey
- d Department of Biotechnology, C-127 , National Agri-Food Biotechnology Institute , Punjab , India
| | - Hatem Rouached
- a Biochimie et Physiologie Moléculaire des Plantes , CNRS, INRA, Montpellier SupAgro, UM , Montpellier , France.,b Agronomy Division, Department of Plant and Soil Sciences, Faculty of Agriculture , Chiang Mai University , Chiang Mai , Thailand.,c Laboratoire de Biotechnologie et Amélioration des Plantes , Centre de Biotechnologie de Sfax , Sfax , Tunisie
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Friščić M, Bucar F, Hazler Pilepić K. LC-PDA-ESI-MS n analysis of phenolic and iridoid compounds from Globularia spp. JOURNAL OF MASS SPECTROMETRY : JMS 2016; 51:1211-1236. [PMID: 27621087 DOI: 10.1002/jms.3844] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 08/24/2016] [Accepted: 08/29/2016] [Indexed: 06/06/2023]
Abstract
Plants produce a great number of metabolites with potentially useful biological activities. Species from the genus Globularia (Plantaginaceae) are known as sources of different phenolic and iridoid compounds. Globularia alypum L. is a medicinal plant used as a healing agent in many Mediterranean countries. Similarities in phytochemical composition are often observed for related species. For Globularia spp., such findings were mostly based on identification of several isolated compounds from distinct species. To our knowledge, this is the first study that enables simultaneous comparison of phytochemical profiles from several members of the genus Globularia. Liquid chromatography-photodiode array detection-electrospray ionization-tandem mass spectrometry was used for the analysis of methanolic extracts of aerial parts obtained from four Globularia species (G. alypum, G. punctata, G. cordifolia and G. meridionalis). In total, 85 compounds were identified or tentatively identified based on comparison of their retention time, UV and MSn (up to MS4 ) spectra to those of standard compounds and/or to literature data. Among these, high relative amounts of bioactive molecules such as globularin, globularifolin, asperuloside and verbascoside (acteoside) were found. Apart from providing new insights into the phytochemistry and chemotaxonomy of selected Globularia species, results of this study complement existing MS/MS spectral data and could enable easier mass spectrometric profiling of certain bioactive compounds such as iridoids and phenylethanoids in related plant species, genera and families. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Maja Friščić
- Department of Pharmaceutical Botany, Faculty of Pharmacy and Biochemistry, University of Zagreb, HR-10000, Zagreb, Croatia
| | - Franz Bucar
- Department of Pharmacognosy, Institute of Pharmaceutical Sciences, University of Graz, A-8010, Graz, Austria
| | - Kroata Hazler Pilepić
- Department of Pharmaceutical Botany, Faculty of Pharmacy and Biochemistry, University of Zagreb, HR-10000, Zagreb, Croatia
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Briat JF, Rouached H, Tissot N, Gaymard F, Dubos C. Integration of P, S, Fe, and Zn nutrition signals in Arabidopsis thaliana: potential involvement of PHOSPHATE STARVATION RESPONSE 1 (PHR1). FRONTIERS IN PLANT SCIENCE 2015; 6:290. [PMID: 25972885 PMCID: PMC4411997 DOI: 10.3389/fpls.2015.00290] [Citation(s) in RCA: 126] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 04/09/2015] [Indexed: 05/18/2023]
Abstract
Phosphate and sulfate are essential macro-elements for plant growth and development, and deficiencies in these mineral elements alter many metabolic functions. Nutritional constraints are not restricted to macro-elements. Essential metals such as zinc and iron have their homeostasis strictly genetically controlled, and deficiency or excess of these micro-elements can generate major physiological disorders, also impacting plant growth and development. Phosphate and sulfate on one hand, and zinc and iron on the other hand, are known to interact. These interactions have been partly described at the molecular and physiological levels, and are reviewed here. Furthermore the two macro-elements phosphate and sulfate not only interact between themselves but also influence zinc and iron nutrition. These intricated nutritional cross-talks are presented. The responses of plants to phosphorus, sulfur, zinc, or iron deficiencies have been widely studied considering each element separately, and some molecular actors of these regulations have been characterized in detail. Although some scarce reports have started to examine the interaction of these mineral elements two by two, a more complex analysis of the interactions and cross-talks between the signaling pathways integrating the homeostasis of these various elements is still lacking. However, a MYB-like transcription factor, PHOSPHATE STARVATION RESPONSE 1, emerges as a common regulator of phosphate, sulfate, zinc, and iron homeostasis, and its role as a potential general integrator for the control of mineral nutrition is discussed.
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Affiliation(s)
- Jean-François Briat
- *Correspondence: Jean-François Briat, Biochimie et Physiologie Moléculaire des Plantes, Centre National de la Recherche Scientifique – Institut National de la Recherche Agronomique – Université Montpellier 2, SupAgro, Bat 7, 2 Place Viala, 34060 Montpellier Cedex 1, France
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Giovannetti M, Tolosano M, Volpe V, Kopriva S, Bonfante P. Identification and functional characterization of a sulfate transporter induced by both sulfur starvation and mycorrhiza formation in Lotus japonicus. THE NEW PHYTOLOGIST 2014; 204:609-619. [PMID: 25132489 DOI: 10.1111/nph.12949] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Accepted: 06/20/2014] [Indexed: 05/28/2023]
Abstract
Arbuscular mycorrhizas (AMs) are one of the most widespread symbioses in the world. They allow plants to receive mineral nutrients from the symbiotic fungus which in turn gets back up to 20% of plant carbon and completes its life cycle. Especially in low-nutrient conditions, AM fungi are capable of significantly improving plant phosphate and nitrogen acquisition, but fewer data are available about sulfur (S) nutrition. We focused on S metabolism in Lotus japonicus upon mycorrhizal colonization under sulfur starvation or repletion. We investigated both tissue sulfate concentrations and S-related gene expression, at cell-type or whole-organ level. Gene expression and sulfate tissue concentration showed that Rhizophagus irregularis colonization can improve plant S nutritional status under S starvation. A group 1 sulfate transporter, LjSultr1;2, induced by both S starvation and mycorrhiza formation, was identified. Its transcript was localized in arbuscule-containing cells, which was confirmed with a promoter-GUS assay, and its function was verified through phenotyping of TILLING mutants in nonmycorrhizal seedlings. LjSultr1;2 thus appears to encode a key protein involved in plant sulfate uptake. In contrast to phosphate transporters, a single gene, LjSultr1;2, seems to mediate both direct and symbiotic pathways of S uptake in L. japonicus.
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Affiliation(s)
- Marco Giovannetti
- Department of Life Science and Systems Biology, Università degli Studi di Torino, Viale Mattioli 25, I-10125, Torino, Italy
| | - Matteo Tolosano
- Department of Life Science and Systems Biology, Università degli Studi di Torino, Viale Mattioli 25, I-10125, Torino, Italy
| | - Veronica Volpe
- Department of Life Science and Systems Biology, Università degli Studi di Torino, Viale Mattioli 25, I-10125, Torino, Italy
| | - Stanislav Kopriva
- John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, UK
- Botanical Institute, University of Cologne, Zülpicher Str. 47b, 50674, Cologne, Germany
| | - Paola Bonfante
- Department of Life Science and Systems Biology, Università degli Studi di Torino, Viale Mattioli 25, I-10125, Torino, Italy
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