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Gong M, Wang X, Wu Z, Yue L, Chen Q, Li H, Lin X, Zhang L, Wang D. Nature-Inspired Molecular-Crowding Enabling Wide-Humidity Range Applicable, Anti-Freezing, and Robust Zwitterionic Hydrogels for On-Skin Electronics. Small 2024:e2400161. [PMID: 38431936 DOI: 10.1002/smll.202400161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Indexed: 03/05/2024]
Abstract
Hydrogels are currently in the limelight for applications in soft electronics but they suffer from the tendency to lose water or freeze when exposed to dry environments or low temperatures. Molecular crowding is a prevalent occurrence in living cells, in which molecular crowding agents modify the hydrogen bonding structure, causing a significant reduction in water activity. Here, a wide-humidity range applicable, anti-freezing, and robust hydrogel is developed through the incorporation of natural amino acid proline (Pro) and conductive MXene into polyvinyl alcohol (PVA) hydrogel networks. Theoretical calculations reveal that Pro can transform "free water" into "locked water" via the molecular-crowding effect, thereby suppressing water evaporation and ice forming. Accordingly, the prepared hydrogel exhibits high water retention capability, with 77% and 55% being preserved after exposure to 20 °C, 28% relative humidity (RH) and 35 °C, 90% RH for 12 h. Meanwhile, Pro lowers the freezing temperature of the hydrogel to 34 °C and enhances its stretchability and strength. Finally, the PVA/Pro/MXene hydrogels are assembled as multifunctional on-skin strain sensors and conductive electrodes to monitor human motions and detect tiny electrophysiological signals. Collectively, this work provides a molecular crowding strategy that will motivate researchers to develop more advanced hydrogels for versatile applications.
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Affiliation(s)
- Min Gong
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Xiaobo Wang
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Zhen Wu
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Liancong Yue
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Qiuji Chen
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Hejian Li
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Xiang Lin
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Liang Zhang
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Dongrui Wang
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
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2
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Wang C, Li X, Zhuang Y, Sun W, Cao H, Xu R, Kong F, Zhang D. A novel miR160a-GmARF16-GmMYC2 module determines soybean salt tolerance and adaptation. New Phytol 2024; 241:2176-2192. [PMID: 38135657 DOI: 10.1111/nph.19503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 11/26/2023] [Indexed: 12/24/2023]
Abstract
Salt stress is a major challenge that has a negative impact on soybean growth and productivity. Therefore, it is important to understand the regulatory mechanism of salt response to ensure soybean yield under such conditions. In this study, we identified and characterized a miR160a-GmARF16-GmMYC2 module and its regulation during the salt-stress response in soybean. miR160a promotes salt tolerance by cleaving GmARF16 transcripts, members of the Auxin Response Factor (ARF) family, which negatively regulates salt tolerance. In turn, GmARF16 activates GmMYC2, encoding a bHLH transcription factor that reduces salinity tolerance by down-regulating proline biosynthesis. Genomic analysis among wild and cultivated soybean accessions identified four distinct GmARF16 haplotypes. Among them, the GmARF16H3 haplotype is preferentially enriched in localities with relatively saline soils, suggesting GmARF16H3 was artificially selected to improve salt tolerance. Our findings therefore provide insights into the molecular mechanisms underlying salt response in soybean and provide valuable genetic targets for the molecular breeding of salt tolerance.
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Affiliation(s)
- Chaofan Wang
- College of Agronomy, Shandong Agricultural University, Tai'an, Shandong, 271018, China
| | - Xiaoming Li
- College of Agronomy, Shandong Agricultural University, Tai'an, Shandong, 271018, China
| | - Yongbin Zhuang
- College of Agronomy, Shandong Agricultural University, Tai'an, Shandong, 271018, China
| | - Wancai Sun
- College of Agronomy, Shandong Agricultural University, Tai'an, Shandong, 271018, China
| | - Hongxiang Cao
- College of Agronomy, Shandong Agricultural University, Tai'an, Shandong, 271018, China
| | - Ran Xu
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Ji'nan, Shandong, 250131, China
| | - Fanjiang Kong
- Guangdong Provincial Key Laboratory of Plant Adaptation and Molecular Design, Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, 510006, China
| | - Dajian Zhang
- College of Agronomy, Shandong Agricultural University, Tai'an, Shandong, 271018, China
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3
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Nomura K, Fiala T, Wennemers H. Carbohydrate Co-Solutes Stabilize Collagen Triple Helices. Chembiochem 2024; 25:e202300860. [PMID: 38233350 DOI: 10.1002/cbic.202300860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/15/2024] [Accepted: 01/17/2024] [Indexed: 01/19/2024]
Abstract
Carbohydrates are common co-solutes for the stabilization of proteins. The effect of carbohydrate solutions on the stability of collagen, the most abundant protein in mammals, is, however, underexplored. In this work, we studied the thermal stability of collagen triple helices derived from a molecularly defined collagen model peptide (CMP), Ac-(Pro-Hyp-Gly)7 -NH2 , in solutions of six common mono- and disaccharides. We show that the carbohydrates stabilize the collagen triple helix in a concentration-dependent manner, with an increase of the melting temperature of up to 17 °C. In addition, we show that the stabilizing effect is similar for all studied sugars, including trehalose, which is otherwise considered a privileged bioprotectant. The results provided insight into the effects of sugar co-solutes on collagen triple helices and can aid the selection of storage environments for collagen-based materials and probes.
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Affiliation(s)
- Kota Nomura
- Laboratory of Organic Chemistry, D-CHAB, ETH Zürich, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland
| | - Tomas Fiala
- Laboratory of Organic Chemistry, D-CHAB, ETH Zürich, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland
| | - Helma Wennemers
- Laboratory of Organic Chemistry, D-CHAB, ETH Zürich, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland
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Choudhury D, Rong N, Senthil Kumar HV, Swedick S, Samuel RZ, Mehrotra P, Toftegaard J, Rajabian N, Thiyagarajan R, Podder AK, Wu Y, Shahini S, Seldeen KL, Troen B, Lei P, Andreadis ST. Proline restores mitochondrial function and reverses aging hallmarks in senescent cells. Cell Rep 2024; 43:113738. [PMID: 38354087 DOI: 10.1016/j.celrep.2024.113738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 12/04/2023] [Accepted: 01/19/2024] [Indexed: 02/16/2024] Open
Abstract
Mitochondrial dysfunction is a hallmark of cellular senescence, with the loss of mitochondrial function identified as a potential causal factor contributing to senescence-associated decline in cellular functions. Our recent findings revealed that ectopic expression of the pluripotency transcription factor NANOG rejuvenates dysfunctional mitochondria of senescent cells by rewiring metabolic pathways. In this study, we report that NANOG restores the expression of key enzymes, PYCR1 and PYCR2, in the proline biosynthesis pathway. Additionally, senescent mesenchymal stem cells manifest severe mitochondrial respiratory impairment, which is alleviated through proline supplementation. Proline induces mitophagy by activating AMP-activated protein kinase α and upregulating Parkin expression, enhancing mitochondrial clearance and ultimately restoring cell metabolism. Notably, proline treatment also mitigates several aging hallmarks, including DNA damage, senescence-associated β-galactosidase, inflammatory cytokine expressions, and impaired myogenic differentiation capacity. Overall, this study highlights the role of proline in mitophagy and its potential in reversing senescence-associated mitochondrial dysfunction and aging hallmarks.
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Affiliation(s)
- Debanik Choudhury
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY 14260, USA
| | - Na Rong
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY 14260, USA
| | | | - Sydney Swedick
- Department of Biomedical Engineering, University at Buffalo, Buffalo, NY 14260, USA
| | - Ronel Z Samuel
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY 14260, USA
| | - Pihu Mehrotra
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY 14260, USA
| | - John Toftegaard
- Department of Biomedical Engineering, University at Buffalo, Buffalo, NY 14260, USA
| | - Nika Rajabian
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY 14260, USA
| | - Ramkumar Thiyagarajan
- Department of Medicine, Division of Geriatrics and Palliative Medicine, Buffalo, NY 14203, USA
| | - Ashis K Podder
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY 14260, USA
| | - Yulun Wu
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY 14260, USA
| | - Shahryar Shahini
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY 14260, USA
| | - Kenneth L Seldeen
- Department of Medicine, Division of Geriatrics and Palliative Medicine, Buffalo, NY 14203, USA
| | - Bruce Troen
- Department of Medicine, Division of Geriatrics and Palliative Medicine, Buffalo, NY 14203, USA
| | - Pedro Lei
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY 14260, USA
| | - Stelios T Andreadis
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY 14260, USA; Department of Biomedical Engineering, University at Buffalo, Buffalo, NY 14260, USA; Center of Excellence in Bioinformatics and Life Sciences, University at Buffalo, Buffalo, NY 14263, USA; Center for Cell, Gene and Tissue Engineering (CGTE), University at Buffalo, Buffalo, NY 14260, USA.
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5
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Longkumer T, Grillet L, Chang HY, Lường TC, Chen CY, Putra H, Schmidt W, Verslues PE. Insertion of YFP at P5CS1 and AFL1 shows the potential, and potential complications, of gene tagging for functional analyses of stress-related proteins. Plant Cell Environ 2024. [PMID: 38392921 DOI: 10.1111/pce.14861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 01/20/2024] [Accepted: 01/23/2024] [Indexed: 02/25/2024]
Abstract
Crispr/CAS9-enabled homologous recombination to insert a tag in frame with an endogenous gene can circumvent difficulties such as context-dependent promoter activity that complicate analysis of gene expression and protein accumulation patterns. However, there have been few reports examining whether such gene targeting/gene tagging (GT) can alter expression of the target gene. The enzyme encoded by Δ1 -pyrroline-5-carboxylate synthetase 1 (P5CS1) is key for stress-induced proline synthesis and drought resistance, yet its expression pattern and protein localisation have been difficult to assay. We used GT to insert YFP in frame with the 5' or 3' ends of the endogenous P5CS1 and At14a-Like 1 (AFL1) coding regions. Insertion at the 3' end of either gene generated homozygous lines with expression of the gene-YFP fusion indistinguishable from the wild type allele. However, for P5CS1 this occurred only after selfing and advancement to the T5 generation allowed initial homozygous lethality of the insertion to be overcome. Once this was done, the GT-generated P5CS1-YFP plants revealed new information about P5CS1 localisation and tissue-specific expression. In contrast, insertion of YFP at the 5' end of either gene blocked expression. The results demonstrate that GT can be useful for functional analyses of genes that are problematic to properly express by other means but also show that, in some cases, GT can disrupt expression of the target gene.
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Affiliation(s)
| | - Louis Grillet
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei, Taiwan
- Department of Agricultural Chemistry, National Taiwan University, Taipei, Taiwan
| | - Hao-Yi Chang
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei, Taiwan
| | - Tài Chiến Lường
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei, Taiwan
| | - Chih-Yun Chen
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei, Taiwan
| | - Hadi Putra
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei, Taiwan
| | - Wolfgang Schmidt
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei, Taiwan
| | - Paul E Verslues
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei, Taiwan
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Cui X, Tang M, Li L, Chang J, Yang X, Chang H, Zhou J, Liu M, Wang Y, Zhou Y, Sun F, Chen Z. Expression Patterns and Molecular Mechanisms Regulating Drought Tolerance of Soybean [ Glycine max (L.) Merr.] Conferred by Transcription Factor Gene GmNAC19. Int J Mol Sci 2024; 25:2396. [PMID: 38397076 PMCID: PMC10889163 DOI: 10.3390/ijms25042396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 02/13/2024] [Accepted: 02/14/2024] [Indexed: 02/25/2024] Open
Abstract
NAC transcription factors are commonly involved in the plant response to drought stress. A transcriptome analysis of root samples of the soybean variety 'Jiyu47' under drought stress revealed the evidently up-regulated expression of GmNAC19, consistent with the expression pattern revealed by quantitative real-time PCR analysis. The overexpression of GmNAC19 enhanced drought tolerance in Saccharomyces cerevisiae INVSc1. The seed germination percentage and root growth of transgenic Arabidopsis thaliana were improved in comparison with those of the wild type, while the transgenic soybean composite line showed improved chlorophyll content. The altered contents of physiological and biochemical indices (i.e., soluble protein, soluble sugar, proline, and malondialdehyde) related to drought stress and the activities of three antioxidant enzymes (i.e., superoxide dismutase, peroxidase, and catalase) revealed enhanced drought tolerance in both transgenic Arabidopsis and soybean. The expressions of three genes (i.e., P5CS, OAT, and P5CR) involved in proline synthesis were decreased in the transgenic soybean hairy roots, while the expression of ProDH involved in the breakdown of proline was increased. This study revealed the molecular mechanisms underlying drought tolerance enhanced by GmNAC19 via regulation of the contents of soluble protein and soluble sugar and the activities of antioxidant enzymes, providing a candidate gene for the molecular breeding of drought-tolerant crop plants.
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Affiliation(s)
- Xiyan Cui
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; (X.C.); (Y.W.); (Y.Z.)
| | - Minghao Tang
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; (X.C.); (Y.W.); (Y.Z.)
| | - Lei Li
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; (X.C.); (Y.W.); (Y.Z.)
| | - Jiageng Chang
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; (X.C.); (Y.W.); (Y.Z.)
| | - Xiaoqin Yang
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; (X.C.); (Y.W.); (Y.Z.)
| | - Hongli Chang
- Shaanxi Key Laboratory for Animal Conservation, School of Life Sciences, Northwest University, Xi’an 710069, China
| | - Jiayu Zhou
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; (X.C.); (Y.W.); (Y.Z.)
| | - Miao Liu
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; (X.C.); (Y.W.); (Y.Z.)
| | - Yan Wang
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; (X.C.); (Y.W.); (Y.Z.)
| | - Ying Zhou
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; (X.C.); (Y.W.); (Y.Z.)
| | - Fengjie Sun
- Department of Biological Sciences, School of Science and Technology, Georgia Gwinnett College, Lawrenceville, GA 30043, USA
| | - Zhanyu Chen
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; (X.C.); (Y.W.); (Y.Z.)
- College of Agronomy, Jilin Agricultural University, Changchun 130118, China
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Zakaria MAT, Sakimin SZ, Ismail MR, Ahmad K, Kasim S. Growth Enhancement and Resistance of Banana Plants to Fusarium Wilt Disease as Affected by Silicate Compounds and Application Frequency. Plants (Basel) 2024; 13:542. [PMID: 38498542 PMCID: PMC10892973 DOI: 10.3390/plants13040542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 07/18/2022] [Indexed: 03/20/2024]
Abstract
The amendment of soils with silicate (Si) compounds is essential to promote growth performance and control Fusarium wilt disease in bananas. Two successive greenhouse trials were conducted at the experimental farm of the University of Putra Malaysia. The treatments were arranged in split plots using a randomized complete block design (RCBD) with four replicates to investigate the effects of Si compounds and application frequency on controlling FOC. Si compounds were used at a constant concentration of 0.1%: T0 (control), T1 (13% SiO2:20% K2O), T2 (26.6% SiO2:13.4% K2O) and T3 (36.2% SiO2:17% Na2O). There were three application frequencies by day intervals (DI): 0DI (without any application), 7DI (12× within 12 weeks after transplanting (WAT)), 15DI (6× within 12 WAT) and 30DI (3× within 12 WAT). From these findings, we observed that the photosynthesis rate started to increase from 10.6 to 19.4 µmol CO2 m-2s-1, when the total chlorophyll content started to increase from 3.85 to 7.61 mgcm-2. The transpiration rate started to increase from a value of 1.94 to 4.31 mmol H2O m-2s-1, when the stomata conductance started to increase from 0.237 to 0.958 mmol m-2s-1. The proline content started to increase from 22.89 to 55.07 µmg-1, when the relative water content started to increase from 42.92 to 83.57%.
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Affiliation(s)
- Md Aiman Takrim Zakaria
- Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, Malaysia; (M.A.T.Z.); (M.R.I.)
| | - Siti Zaharah Sakimin
- Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, Malaysia; (M.A.T.Z.); (M.R.I.)
- Institute of Tropical Agriculture and Food Security (ITAFoS), Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Mohd Razi Ismail
- Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, Malaysia; (M.A.T.Z.); (M.R.I.)
| | - Khairulmazmi Ahmad
- Department of Plant Protection, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, Malaysia;
| | - Susilawati Kasim
- Department of Land Management, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, Malaysia;
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Kebert M, Stojnić S, Rašeta M, Kostić S, Vuksanović V, Ivanković M, Lanšćak M, Markić AG. Variations in Proline Content, Polyamine Profiles, and Antioxidant Capacities among Different Provenances of European Beech ( Fagus sylvatica L.). Antioxidants (Basel) 2024; 13:227. [PMID: 38397825 PMCID: PMC10886255 DOI: 10.3390/antiox13020227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/06/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
International provenance trials are a hot topic in forestry, and in light of climate change, the search for more resilient beech provenances and their assisted migration is one of the challenges of climate-smart forestry. The main aim of the study was to determine intraspecific variability in European beech (Fagus sylvatica L.) among 11 beech provenances according to total antioxidant capacities estimated by various assays, such as DPPH (2,2-diphenyl-1-picrylhydrazyl), ABTS (2,2'-azino-bis-(3-ethylbenzothiazoline-6-sulfonic) acid), FRAP (ferric reducing antioxidant power) assay, and radical scavenging capacity against nitric oxide (RSC-NO assays), as well as osmolyte content, primarily individual polyamines (putrescine, spermidine, and spermine), and free proline content. Polyamine amounts were quantified by using HPLC coupled with fluorescent detection after dansylation pretreatment. The highest values for radical scavenger capacity assays (ABTS, DPPH, and FRAP) were measured in the German provenances DE47 and DE49. Also, the highest NO inhibition capacity was found in the provenance DE49, while the highest content of proline (PRO), total phenolic content (TPC), and total flavonoid content (TFC) was recorded in DE47. The Austrian AT56 and German provenance DE49 were most abundant in total polyamines. This research underlines the importance of the application of common antioxidant assays as well as osmolyte quantification as a criterion for the selection of climate-ready beech provenances for sustainable forest management.
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Affiliation(s)
- Marko Kebert
- Institute of Lowland Forestry and Environment, University of Novi Sad, 21000 Novi Sad, Serbia; (S.S.); (S.K.)
| | - Srđan Stojnić
- Institute of Lowland Forestry and Environment, University of Novi Sad, 21000 Novi Sad, Serbia; (S.S.); (S.K.)
| | - Milena Rašeta
- Department of Chemistry, Biochemistry, and Environmental Protection, Faculty of Sciences, University of Novi Sad, 21000 Novi Sad, Serbia;
| | - Saša Kostić
- Institute of Lowland Forestry and Environment, University of Novi Sad, 21000 Novi Sad, Serbia; (S.S.); (S.K.)
| | - Vanja Vuksanović
- Faculty of Agriculture, University of Novi Sad, 21000 Novi Sad, Serbia;
| | - Mladen Ivanković
- Division for Genetics, Forest Tree Breeding and Seed Science, Croatian Forest Research Institute, 10450 Jastrebarsko, Croatia; (M.I.); (M.L.)
| | - Miran Lanšćak
- Division for Genetics, Forest Tree Breeding and Seed Science, Croatian Forest Research Institute, 10450 Jastrebarsko, Croatia; (M.I.); (M.L.)
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Xiong H, Luo Y, Zhao H, Wang J, Hu B, Yan C, Yao T, Zhang Y, Shi X, Rennenberg H. Integrated proteome and physiological traits reveal interactive mechanisms of new leaf growth and storage protein degradation with mature leaves of evergreen citrus trees. Tree Physiol 2024; 44:tpae001. [PMID: 38195893 DOI: 10.1093/treephys/tpae001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 12/29/2023] [Indexed: 01/11/2024]
Abstract
The growth of fruit trees depends on the nitrogen (N) remobilization in mature tissues and N acquisition from the soil. However, in evergreen mature citrus (Citrus reticulata Blanco) leaves, proteins with N storage functions and hub molecules involved in driving N remobilization remain largely unknown. Here, we combined proteome and physiological analyses to characterize the spatiotemporal mechanisms of growth of new leaves and storage protein degradation in mature leaves of citrus trees exposed to low-N and high-N fertilization in the field. Results show that the growth of new leaves is driven by remobilization of stored reserves, rather than N uptake by the roots. In this context, proline and arginine in mature leaves acted as N sources supporting the growth of new leaves in spring. Time-series analyses with gel electrophoresis and proteome analysis indicated that the mature autumn shoot leaves are probably the sites of storage protein synthesis, while the aspartic endopeptidase protein is related to the degradation of storage proteins in mature citrus leaves. Furthermore, bioinformatic analysis based on protein-protein interactions indicated that glutamate synthetase and ATP-citrate synthetase are hub proteins in N remobilization from mature citrus leaves. These results provide strong physiological data for seasonal optimization of N fertilizer application in citrus orchards.
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Affiliation(s)
- Huaye Xiong
- Center of Molecular Ecophysiology (CMEP), College of Resources and Environment, Southwest University, No. 2, Tiansheng Road, Beibei District, 400715 Chongqing, P.R. China
| | - Yayin Luo
- Center of Molecular Ecophysiology (CMEP), College of Resources and Environment, Southwest University, No. 2, Tiansheng Road, Beibei District, 400715 Chongqing, P.R. China
| | - Huanyu Zhao
- Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, College of Resources and Environment, Southwest University, No. 2, Tiansheng Road, Beibei District, 400715 Chongqing, P.R. China
| | - Jie Wang
- Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, College of Resources and Environment, Southwest University, No. 2, Tiansheng Road, Beibei District, 400715 Chongqing, P.R. China
| | - Bin Hu
- Center of Molecular Ecophysiology (CMEP), College of Resources and Environment, Southwest University, No. 2, Tiansheng Road, Beibei District, 400715 Chongqing, P.R. China
| | - Chengquan Yan
- Citrus Research Institute, Southwest University, Xiema, Beibei District, 400712 Chongqing, P.R. China
| | - Tingshan Yao
- Citrus Research Institute, Southwest University, Xiema, Beibei District, 400712 Chongqing, P.R. China
| | - Yueqiang Zhang
- Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, College of Resources and Environment, Southwest University, No. 2, Tiansheng Road, Beibei District, 400715 Chongqing, P.R. China
| | - Xiaojun Shi
- Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, College of Resources and Environment, Southwest University, No. 2, Tiansheng Road, Beibei District, 400715 Chongqing, P.R. China
| | - Heinz Rennenberg
- Center of Molecular Ecophysiology (CMEP), College of Resources and Environment, Southwest University, No. 2, Tiansheng Road, Beibei District, 400715 Chongqing, P.R. China
- Chair of Tree Physiology, Institute of Forest Sciences, Albert-Ludwigs-Universität Freiburg, Georges-Köhler-Allee 53/54, 79110 Freiburg, Germany
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10
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Loughlin JO, Zinovjev K, Napolitano S, van der Kamp M, Rubini M. 4-Thia proline accelerates the slow folding phase of proteins containing cis prolines in the native state by two orders of magnitude. Protein Sci 2024; 33:e4877. [PMID: 38115231 PMCID: PMC10804670 DOI: 10.1002/pro.4877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 12/12/2023] [Accepted: 12/14/2023] [Indexed: 12/21/2023]
Abstract
The cis/trans isomerization of peptidyl-prolyl peptide bonds is often the bottleneck of the refolding reaction for proteins containing cis proline residues in the native state. Proline (Pro) analogues, especially C4-substituted fluoroprolines, have been widely used in protein engineering to enhance the thermodynamic stability of peptides and proteins and to investigate folding kinetics. 4-thiaproline (Thp) has been shown to bias the ring pucker of Pro, to increase the cis population percentage of model peptides in comparison to Pro, and to diminish the activation energy barrier for the cis/trans isomerization reaction. Despite its intriguing properties, Thp has been seldom incorporated into proteins. Moreover, the impact of Thp on the folding kinetics of globular proteins has never been reported. In this study, we show that upon incorporation of Thp at cisPro76 into the thioredoxin variant Trx1P the half-life of the refolding reaction decreased from ~2 h to ~35 s. A dramatic acceleration of the refolding rate could be observed also for the protein pseudo wild-type barstar upon replacement of cisPro48 with Thp. Quantum chemical calculations suggested that the replacement of the Cγ H2 group by a sulfur atom in the pyrrolidine ring, might lower the barrier for cis/trans rotation due to a weakened peptide bond. The protein variants retained their thermodynamic stability upon incorporation of Thp, while the catalytic and enzymatic activities of the modified Trx1P remained unchanged. Our results show that the Pro isostere Thp might accelerate the rate of the slow refolding reaction for proteins containing cis proline residues in the native state, independent from the local structural environment.
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Affiliation(s)
| | - Kirill Zinovjev
- School of Biochemistry, University of BristolBristolUK
- Department of Physical ChemistryUniversity of ValenciaValenciaSpain
| | - Silvia Napolitano
- Department of Molecular Biology and BiophysicsETH ZürichZürichSwitzerland
| | | | - Marina Rubini
- School of Chemistry, University College Dublin, BelfieldDublin 4Ireland
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11
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Yang Y, Wei Y, Yin M, Liu E, Du X, Shen J, Dong M, Yan S. Efficient Polyamine-Based Nanodelivery System for Proline: Enhanced Uptake Improves the Drought Tolerance of Tobacco. J Agric Food Chem 2024; 72:1550-1560. [PMID: 38207102 DOI: 10.1021/acs.jafc.3c05636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
Drought stress is one of the most unfavorable factors affecting plant growth and productivity among various environmental stresses. Nanotechnology is expected to enhance the effectiveness of conventional biostimulants. Herein, the current study constructed an efficient proline (Pro) nanodelivery system based on a star polyamine (SPc). The hydroxyl groups of Pro could assemble with carbonyl groups of SPc, and the self-assembly of Pro with SPc formed the nanoscale particles of the Pro/SPc complex. Compared to Pro alone, the contact angle of SPc-loaded Pro decreased, and its retentivity and plant uptake increased. Importantly, the tobacco (Nicotiana benthamiana) seeds and seedlings treated with Pro/SPc complex exhibited stronger drought tolerance. RNA-Seq analysis indicated that the SPc-loaded Pro could further upregulate photosynthesis-related genes and endocytosis-related genes. The current study constructed an efficient nanodelivery system for improving the bioactivity of biostimulants, which has broad application prospects in the agricultural field.
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Affiliation(s)
- Yanxiao Yang
- Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing 100193, P. R. China
- Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Ying Wei
- Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing 100193, P. R. China
| | - Meizhen Yin
- State Key Laboratory of Chemical Resource Engineering, Beijing Lab of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Enliang Liu
- College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, P. R. China
| | - Xiangge Du
- Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing 100193, P. R. China
| | - Jie Shen
- Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing 100193, P. R. China
| | - Min Dong
- Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing 100193, P. R. China
| | - Shuo Yan
- Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing 100193, P. R. China
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12
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Azarnejad N, Celletti S, Ghorbani M, Fedeli R, Loppi S. Dose-Dependent Effects of a Corn Starch-Based Bioplastic on Basil ( Ocimum basilicum L.): Implications for Growth, Biochemical Parameters, and Nutrient Content. Toxics 2024; 12:80. [PMID: 38251035 PMCID: PMC10818275 DOI: 10.3390/toxics12010080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 01/12/2024] [Accepted: 01/15/2024] [Indexed: 01/23/2024]
Abstract
Plastic pollution is a pressing global issue, prompting the exploration of sustainable alternatives such as bioplastics (BPs). In agriculture, BPs have gained relevance as mulching films. This study investigated the effect of the presence in the soil of different concentrations (0-3%, w/w) of a corn starch-based bioplastic on basil (Ocimum basilicum L.). The results showed that increasing bioplastic concentration reduced shoot fresh biomass production. Biochemical analyses revealed changes in the shoot in soluble protein content, biomarkers of oxidative and osmotic stress (malondialdehyde and proline, respectively), anti-radical activity, and antioxidant compounds (phenols, flavonoids, and ascorbic acid), which are indicative of plant adaptive mechanisms in response to stress caused by the presence of the different concentrations of bioplastic in the soil. Macro- and micronutrient analysis showed imbalances in nutrient uptake, with a decreased content of potassium, phosphorus, and manganese, and an increased content of magnesium, iron, and copper in the shoot at high BP concentrations.
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Affiliation(s)
- Nazanin Azarnejad
- Department of Life Sciences (DSV), University of Siena, 53100 Siena, Italy; (N.A.); (M.G.); (R.F.); (S.L.)
| | - Silvia Celletti
- Department of Life Sciences (DSV), University of Siena, 53100 Siena, Italy; (N.A.); (M.G.); (R.F.); (S.L.)
- BioAgry Lab, University of Siena, 53100 Siena, Italy
| | - Majid Ghorbani
- Department of Life Sciences (DSV), University of Siena, 53100 Siena, Italy; (N.A.); (M.G.); (R.F.); (S.L.)
| | - Riccardo Fedeli
- Department of Life Sciences (DSV), University of Siena, 53100 Siena, Italy; (N.A.); (M.G.); (R.F.); (S.L.)
- BioAgry Lab, University of Siena, 53100 Siena, Italy
| | - Stefano Loppi
- Department of Life Sciences (DSV), University of Siena, 53100 Siena, Italy; (N.A.); (M.G.); (R.F.); (S.L.)
- BioAgry Lab, University of Siena, 53100 Siena, Italy
- BAT Center—Interuniversity Center for Studies on Bioinspired Agro-Environmental Technology, University of Naples “Federico II”, 80138 Napoli, Italy
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13
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Cherkaoui S, Yang L, McBride M, Turn CS, Lu W, Eigenmann C, Allen GE, Panasenko OO, Zhang L, Vu A, Liu K, Li Y, Gandhi OH, Surrey L, Wierer M, White E, Rabinowitz JD, Hogarty MD, Morscher RJ. Reprogramming neuroblastoma by diet-enhanced polyamine depletion. bioRxiv 2024:2024.01.07.573662. [PMID: 38260457 PMCID: PMC10802427 DOI: 10.1101/2024.01.07.573662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Neuroblastoma is a highly lethal childhood tumor derived from differentiation-arrested neural crest cells1,2. Like all cancers, its growth is fueled by metabolites obtained from either circulation or local biosynthesis3,4. Neuroblastomas depend on local polyamine biosynthesis, with the inhibitor difluoromethylornithine showing clinical activity5. Here we show that such inhibition can be augmented by dietary restriction of upstream amino acid substrates, leading to disruption of oncogenic protein translation, tumor differentiation, and profound survival gains in the TH-MYCN mouse model. Specifically, an arginine/proline-free diet decreases the polyamine precursor ornithine and augments tumor polyamine depletion by difluoromethylornithine. This polyamine depletion causes ribosome stalling, unexpectedly specifically at adenosine-ending codons. Such codons are selectively enriched in cell cycle genes and low in neuronal differentiation genes. Thus, impaired translation of these codons, induced by the diet-drug combination, favors a pro-differentiation proteome. These results suggest that the genes of specific cellular programs have evolved hallmark codon usage preferences that enable coherent translational rewiring in response to metabolic stresses, and that this process can be targeted to activate differentiation of pediatric cancers.
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Affiliation(s)
- Sarah Cherkaoui
- Pediatric Cancer Metabolism Laboratory, Children’s Research Center, University of Zurich, 8032 Zurich, Switzerland
- Division of Oncology, University Children’s Hospital Zurich and Children’s Research Center, University of Zurich, 8032 Zurich, Switzerland
| | - Lifeng Yang
- Department of Chemistry, Princeton University, Princeton, NJ 08544, USA
- Ludwig Institute for Cancer Research, Princeton Branch, Princeton University, Princeton, NJ 08544, USA
| | - Matthew McBride
- Department of Chemistry, Princeton University, Princeton, NJ 08544, USA
- Ludwig Institute for Cancer Research, Princeton Branch, Princeton University, Princeton, NJ 08544, USA
| | - Christina S. Turn
- Division of Oncology and Department of Pediatrics, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Wenyun Lu
- Department of Chemistry, Princeton University, Princeton, NJ 08544, USA
- Ludwig Institute for Cancer Research, Princeton Branch, Princeton University, Princeton, NJ 08544, USA
| | - Caroline Eigenmann
- Pediatric Cancer Metabolism Laboratory, Children’s Research Center, University of Zurich, 8032 Zurich, Switzerland
- Division of Oncology, University Children’s Hospital Zurich and Children’s Research Center, University of Zurich, 8032 Zurich, Switzerland
| | - George E. Allen
- Bioinformatics Support Platform, Faculty of Medicine, University of Geneva 1211, Switzerland
- Department of Microbiology and Molecular Medicine, Institute of Genetics and Genomics Geneva, Faculty of Medicine, University of Geneva, 1211 Geneva, Switzerland
| | - Olesya O. Panasenko
- Department of Microbiology and Molecular Medicine, Institute of Genetics and Genomics Geneva, Faculty of Medicine, University of Geneva, 1211 Geneva, Switzerland
- BioCode: RNA to proteins (R2P) Platform, University of Geneva, 1211 Geneva, Switzerland
| | - Lu Zhang
- Ludwig Institute for Cancer Research, Princeton Branch, Princeton University, Princeton, NJ 08544, USA
- Department of Molecular Biology and Biochemistry, Rutgers University, Piscataway, NJ 08901, USA
- Department of Molecular Biology and Biochemistry, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08901, USA
| | - Annette Vu
- Division of Oncology and Department of Pediatrics, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Kangning Liu
- Division of Oncology and Department of Pediatrics, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Yimei Li
- Division of Oncology and Department of Pediatrics, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Om H. Gandhi
- Division of Oncology and Department of Pediatrics, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Lea Surrey
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
- Department of Pathology and Laboratory Medicine, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Michael Wierer
- Proteomics Research Infrastructure, Panum Institute, Blegdamsvej 3B, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Eileen White
- Ludwig Institute for Cancer Research, Princeton Branch, Princeton University, Princeton, NJ 08544, USA
- Department of Molecular Biology and Biochemistry, Rutgers University, Piscataway, NJ 08901, USA
- Department of Molecular Biology and Biochemistry, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08901, USA
| | - Joshua D. Rabinowitz
- Department of Chemistry, Princeton University, Princeton, NJ 08544, USA
- Ludwig Institute for Cancer Research, Princeton Branch, Princeton University, Princeton, NJ 08544, USA
| | - Michael D. Hogarty
- Division of Oncology and Department of Pediatrics, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Raphael J. Morscher
- Pediatric Cancer Metabolism Laboratory, Children’s Research Center, University of Zurich, 8032 Zurich, Switzerland
- Division of Oncology, University Children’s Hospital Zurich and Children’s Research Center, University of Zurich, 8032 Zurich, Switzerland
- Division of Human Genetics, Medical University Innsbruck, Peter-Mayr-Str. 1, 6020 Innsbruck, Austria
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Balasjin NM, Maki JS, Schläppi MR. Pseudomonas mosselii improves cold tolerance of Asian rice ( Oryza sativa L.) in a genotype-dependent manner by increasing proline in japonica and reduced glutathione in indica varieties. Can J Microbiol 2024; 70:15-31. [PMID: 37699259 DOI: 10.1139/cjm-2023-0030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Abstract
Cold stress is an important factor limiting rice production and distribution. Identifying factors that contribute to cold tolerance in rice is of primary importance. While some plant specific genetic factors involved in cold tolerance have been identified, the role of the rice microbiome remains unexplored. In this study, we evaluated the influence of plant growth promoting bacteria (PGPB) with the ability of phosphate solubilization on rice cold tolerance and survival. To reach this goal, inoculated and uninoculated 2-week-old seedlings were cold stressed and evaluated for survival and other phenotypes such as electrolyte leakage (EL) and necessary elements for cold tolerance. The results of this study showed that of the five bacteria, Pseudomonas mosselii, improved both indica and japonica varietal plants' survival and decreased EL, indicating increased membrane integrity. We observed different possible cold tolerance mechanisms in japonica and indica plants such as increases in proline and reduced glutathione levels, respectively. This bacterium also improved the shoot growth of cold exposed indica plants during the recovery period. This study confirmed the host genotype dependent activity of P. mosselii and indicated that there is an interaction between specific plant genes and bacterial genes that causes different plant responses to cold stress.
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Affiliation(s)
| | - James S Maki
- Marquette University, Biological Sciences Department, Milwaukee, WI, USA
| | - Michael R Schläppi
- Marquette University, Biological Sciences Department, Milwaukee, WI, USA
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15
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Tafi E, Sagona S, Meucci V, Bortolotti L, Galloni M, Bogo G, Gatta D, Casini L, Barberis M, Nepi M, Felicioli A. Effect of amino acid enriched diets on hemolymph amino acid composition in honey bees. Arch Insect Biochem Physiol 2024; 115:e22085. [PMID: 38288497 DOI: 10.1002/arch.22085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 12/21/2023] [Accepted: 01/10/2024] [Indexed: 02/01/2024]
Abstract
Amino acids (AAs) are an abundant class of nectar solutes, and they are involved in the nectar attractiveness to flower visitors. Among the various AAs, proline is the most abundant proteogenic AA, and γ-amino butyric acid (GABA) and β-alanine are the two most abundant non-proteogenic AAs. These three AAs are known to affect insect physiology, being involved in flight metabolism and neurotransmission. The aim of this study was to investigate the effects of artificial diets enriched with either β-alanine, GABA, or proline on consumption, survival, and hemolymph composition in honey bees belonging to two different ages and with different metabolism (i.e., newly emerged and foragers). Differences in feed intake among diets were not observed, while a diet enriched with β-alanine improved the survival rate of newly emerged honey bees compared to the control group. Variations in the hemolymph AA concentrations occurred only in newly emerged honey bees, according to the diet and the time of hemolymph sampling. A greater susceptibility of young honey bees to enriched diets than older honey bees was observed. The variations in the concentrations of hemolymph AAs reflect either the accumulation of dietary AAs or the existence of metabolic pathways that may lead to the conversion of dietary AAs into different ones. This investigation could be an initial contribution to studying the complex dynamics that regulate hemolymph AA composition and its effect on honey bee physiology.
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Affiliation(s)
- Elena Tafi
- Department of Veterinary Science, University of Pisa, Pisa, Italy
- CREA Research Centre for Agriculture and Environment, Bologna, Italy
| | - Simona Sagona
- Department of Veterinary Science, University of Pisa, Pisa, Italy
- Department of Pharmacy, University of Pisa, Pisa, Italy
| | - Valentina Meucci
- Department of Veterinary Science, University of Pisa, Pisa, Italy
| | - Laura Bortolotti
- CREA Research Centre for Agriculture and Environment, Bologna, Italy
| | - Marta Galloni
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Gherardo Bogo
- CREA Research Centre for Agriculture and Environment, Bologna, Italy
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Domenico Gatta
- Department of Veterinary Science, University of Pisa, Pisa, Italy
| | - Lucia Casini
- Department of Veterinary Science, University of Pisa, Pisa, Italy
| | - Marta Barberis
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Massimo Nepi
- Department of Life Sciences, University of Siena, Siena, Italy
| | - Antonio Felicioli
- Department of Veterinary Science, University of Pisa, Pisa, Italy
- Interdepartmental Research Centre "Nutraceuticals and Food for Health", University of Pisa, Pisa, Italy
- Center for Research in Agricultural and Environmental Sciences "E. Avanzi", University of Pisa, Pisa, Italy
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16
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Kocaman A. Combined interactions of amino acids and organic acids in heavy metal binding in plants. Plant Signal Behav 2023; 18:2064072. [PMID: 35491815 PMCID: PMC9980588 DOI: 10.1080/15592324.2022.2064072] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/04/2022] [Accepted: 04/04/2022] [Indexed: 05/30/2023]
Abstract
This research focused on the different approaches to the transport and internal chelation of metals with amino acids and organic acids in plants. Therefore, in the first phase, the plants studied were identified the characteristics of the bioaccumulation factors. Steria pumila, Echium angustifolium, Typha angustifolia, Sisymbrium austriacum were identified as hyperaccumulators (Cd, Ni), accumulators (Pb, Sn, and Se), excluders (Cr, Hg). On the other hand, the Sisymbrium austriacum only showed the characteristic of the accumulator for Cr. In the second phase, the combined effects of amino acids and organic acids on the chelation of heavy metals in plants were tested by a multi-linear regression model. Related to our hypothesis, Amino acids; Gly and Leu (Cd), Trp and Ile (Pb), Asp, Ser, and Leu (Cr), Ser (Hg), Trp and Glu (Ni), Asp, Thr, and Gly (Sn), Asn and Leu (Se), Organic acids; Malonic and Malic acid (Cd), Malonic acid (Pb), Oxalic and Malic acid (Cr), Oxalic, Succinic, Citric and Butyric acid (Hg), Malonic and Malic acid (Ni), Malonic, Maleic, and Malic acid (Sn), Malonic and Citric acid (Se) were concluded that had combined effect for heavy metal's phytochelation ability into plants.
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Affiliation(s)
- Ayhan Kocaman
- Engineering Faculty, Environmental Engineering Department, Karabük University, Karabük, Turkey
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17
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Luqman M, Shahbaz M, Maqsood MF, Farhat F, Zulfiqar U, Siddiqui MH, Masood A, Aqeel M, Haider FU. Effect of strigolactone on growth, photosynthetic efficiency, antioxidant activity, and osmolytes accumulation in different maize ( Zea mays L.) hybrids grown under drought stress. Plant Signal Behav 2023; 18:2262795. [PMID: 37767863 PMCID: PMC10730227 DOI: 10.1080/15592324.2023.2262795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 09/17/2023] [Indexed: 09/29/2023]
Abstract
Drought alters plant physiology, morphology, and biochemical pathways, necessitating effective mitigation strategies. Strigolactones (SLs) are phytohormones known to enhance plant growth under abiotic stress. However, their specific impact on drought stress in maize remains unclear. This study aimed to determine the optimal SL concentration for mitigating drought stress in two maize hybrids (HY-1898, FH-1046). Maize plants were subjected to 60% field capacity drought stress in a pot experiment. After 40 d, different concentrations (0, 0.001, 0.01, and 0.1 mg L-1) of the synthetic SL analogue GR24 were applied to evaluate their effects on growth features, photosynthesis attributes, and osmolyte accumulation in the maize hybrids. Results showed that exogenous SL application significantly increased photosynthetic pigments in maize hybrids under drought stress. Chlorophyll content, gas exchange characteristics, net CO2 assimilation rate, stomatal conductance, water use efficiency, and antioxidant activities were enhanced by GR24. Leaf ascorbic acid and total phenolics also increased with SL application. Organic osmolytes, such as glycine betaine and free proline, were elevated in both maize hybrids under drought stress. Yield-related parameters, including cob diameter, cob weight, number of seeds per cob, and number of seeds per plant, were significantly increased by GR24 under drought stress. Our findings highlight the potential of GR24 foliar application to mitigate drought stress and promote maize growth and grain yield in a concentration-dependent manner. The minimum effective SL concentration against drought stress was determined to be 0.01 mg L-1. Overall, foliar application of GR24 could serve as a sustainable approach for drought tolerance in agriculture.
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Affiliation(s)
- Muhammad Luqman
- Department of Botany, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Shahbaz
- Department of Botany, University of Agriculture, Faisalabad, Pakistan
| | | | - Fozia Farhat
- Department of Botany, Government College Women University, Faisalabad, Pakistan
| | - Usman Zulfiqar
- Department of Agronomy, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Manzer H. Siddiqui
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Atifa Masood
- The department of Botany, University of Lahore, Sargodha, Pakistan
| | - Muhammad Aqeel
- State key Laboratory of Grassland Agro-Ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Fasih Ullah Haider
- Ecology, Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- Ecology, University of Chinese Academy of Sciences, Beijing, China
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18
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Derbali I, Derbali W, Gharred J, Manaa A, Slama I, Koyro HW. Mitigating Salinity Stress in Quinoa ( Chenopodium quinoa Willd.) with Biochar and Superabsorber Polymer Amendments. Plants (Basel) 2023; 13:92. [PMID: 38202399 PMCID: PMC10780479 DOI: 10.3390/plants13010092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/14/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024]
Abstract
In agriculture, soil amendments are applied to improve soil quality by increasing the water retention capacity and regulating the pH and ion exchange. Our study was carried out to investigate the impact of a commercial biochar (Bc) and a superabsorbent polymer (SAP) on the physiological and biochemical processes and the growth performance of Chenopodium quinoa (variety ICBA-5) when exposed to high salinity. Plants were grown for 25 days under controlled greenhouse conditions in pots filled with a soil mixture with or without 3% Bc or 0.2% SAP by volume before the initiation of 27 days of growth in hypersaline conditions, following the addition of 300 mM NaCl. Without the Bc or soil amendments, multiple negative effects of hypersalinity were detected on photosynthetic CO2 assimilation (Anet minus 70%) and on the production of fresh matter from the whole plant, leaves, stems and roots (respectively, 55, 46, 64 and 66%). Moreover, increased generation of reactive oxygen species (ROS) was indicated by higher levels of MDA (plus 142%), antioxidant activities and high proline levels (plus 311%). In the pots treated with 300 mM NaCl, the amendments Bc or SAP improved the plant growth parameters, including fresh matter production (by 10 and 17%), an increased chlorophyll content by 9 and 13% and Anet in plants (by 98 and 115%). Both amendments (Bc and SAP) resulted in significant salinity mitigation effects, decreasing proline and malondialdehyde (MDA) levels whilst increasing both the activity of enzymatic antioxidants and non-enzymatic antioxidants that reduce the levels of ROS. This study confirms how soil amendments can help to improve plant performance and expand the productive range into saline areas.
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Affiliation(s)
- Imed Derbali
- Institute of Plant Ecology, Justus Liebig University Giessen, 35392 Giessen, Germany; (I.D.); (W.D.); (J.G.)
- Laboratory of Extremophile Plants, Center of Biotechnology of Borj Cedria, Hammam-Lif 2084, Tunisia; (A.M.); (I.S.)
- Faculty of Mathematical, Physical and Natural Sciences of Tunis, University of Tunis El-Manar, Tunis 1068, Tunisia
| | - Walid Derbali
- Institute of Plant Ecology, Justus Liebig University Giessen, 35392 Giessen, Germany; (I.D.); (W.D.); (J.G.)
- Laboratory of Extremophile Plants, Center of Biotechnology of Borj Cedria, Hammam-Lif 2084, Tunisia; (A.M.); (I.S.)
- Faculty of Mathematical, Physical and Natural Sciences of Tunis, University of Tunis El-Manar, Tunis 1068, Tunisia
| | - Jihed Gharred
- Institute of Plant Ecology, Justus Liebig University Giessen, 35392 Giessen, Germany; (I.D.); (W.D.); (J.G.)
- Laboratory of Extremophile Plants, Center of Biotechnology of Borj Cedria, Hammam-Lif 2084, Tunisia; (A.M.); (I.S.)
- Faculty of Mathematical, Physical and Natural Sciences of Tunis, University of Tunis El-Manar, Tunis 1068, Tunisia
| | - Arafet Manaa
- Laboratory of Extremophile Plants, Center of Biotechnology of Borj Cedria, Hammam-Lif 2084, Tunisia; (A.M.); (I.S.)
| | - Inès Slama
- Laboratory of Extremophile Plants, Center of Biotechnology of Borj Cedria, Hammam-Lif 2084, Tunisia; (A.M.); (I.S.)
| | - Hans-Werner Koyro
- Institute of Plant Ecology, Justus Liebig University Giessen, 35392 Giessen, Germany; (I.D.); (W.D.); (J.G.)
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Tada Y, Kochiya R, Toyoizumi M, Takano Y. Salt tolerance and regulation of Na +, K +, and proline contents in different wild turfgrasses under salt stress. Plant Biotechnol (Tokyo) 2023; 40:301-309. [PMID: 38434114 PMCID: PMC10904837 DOI: 10.5511/plantbiotechnology.23.0721a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 07/21/2023] [Indexed: 03/05/2024]
Abstract
Turfgrasses show a wide range of salinity tolerance. In this study, twenty wild turfgrasses were collected from coastal regions in Japan, and their species; evolutionary lineage; salt tolerance levels; shoot and root K+, Na+, and proline contents; and amounts of ions secreted from their salt glands were determined. Among them, eighteen turfgrass species were determined based on the internal transcribed spacer 1 sequences. All collected wild turfgrasses were identified as halophytes and were divided into two salt-tolerant levels. They maintained the shoot relative water contents and suppressed excess Na+ accumulation in their shoots and roots and K+ content homeostasis compared with rice, resulting in the maintenance of a higher K+/Na+ ratio under salt stress. These characteristics must be part of the salt tolerance mechanisms. Among the four turfgrasses with salt glands, three selectively secreted Na+ from their salt glands; however, interestingly, one secreted K+ over Na+, although it still maintained a K+/Na+ ratio comparable to that of the other turfgrasses. A significant amount of proline synthesis was observed in most of the turfgrasses in response to salt stress, and the proline content was highly correlated with the salt tolerance, suggesting its key role in the salt tolerance mechanisms. These wild turfgrasses with such diverse ion control mechanisms and proline synthesis profiles are useful materials for investigating the salt tolerant mechanisms and breeding salt tolerant turfgrasses.
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Affiliation(s)
- Yuichi Tada
- School of Bioscience and Biotechnology, Tokyo University of Technology, 1404-1 Katakura, Hachioji, Tokyo 192-0982, Japan
| | - Ryuto Kochiya
- School of Bioscience and Biotechnology, Tokyo University of Technology, 1404-1 Katakura, Hachioji, Tokyo 192-0982, Japan
| | - Masayuki Toyoizumi
- School of Bioscience and Biotechnology, Tokyo University of Technology, 1404-1 Katakura, Hachioji, Tokyo 192-0982, Japan
| | - Yuka Takano
- School of Bioscience and Biotechnology, Tokyo University of Technology, 1404-1 Katakura, Hachioji, Tokyo 192-0982, Japan
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Chinnannan K, Somagattu P, Yammanuru H, Nimmakayala P, Chakrabarti M, Reddy UK. Effects of Mars Global Simulant (MGS-1) on Growth and Physiology of Sweet Potato: A Space Model Plant. Plants (Basel) 2023; 13:55. [PMID: 38202365 PMCID: PMC10780443 DOI: 10.3390/plants13010055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/20/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024]
Abstract
Growing food autonomously on Mars is challenging due to the Martian soil's low nutrient content and high salinity. Understanding how plants adapt and evaluating their nutritional attributes are pivotal for sustained Mars missions. This research delves into the regeneration, stress tolerance, and dietary metrics of sweet potato (Ipomoea batatas) across different Mars Global Simulant (MGS-1) concentrations (0, 25, 50, and 75%). In our greenhouse experiment, 75% MGS-1 concentration significantly inhibited sweet potato growth, storage root biomass, and chlorophyll content. This concentration also elevated the plant tissues' H2O2, proline, and ascorbic acid levels. Higher MGS-1 exposures (50 and 75%) notably boosted the vital amino acids and sugar groups in the plant's storage roots. However, increased MGS-1 concentrations notably diminished the total C:N ratio and elemental composition in both the vines and storage roots. In summary, sweet potato exhibited optimal growth, antioxidant properties, yield, and nutrient profiles at 25% MGS-1 exposure as compared to higher concentrations. This study underscores the need for future interventions, like nutrient enhancements and controlled metal accessibility, to render sweet potato a suitable plant for space-based studies.
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Affiliation(s)
- Karthik Chinnannan
- Department of Biology, Gus R. Douglass Institute, West Virginia State University, Institute, WV 25112, USA; (K.C.); (P.S.); (H.Y.); (P.N.)
| | - Prapooja Somagattu
- Department of Biology, Gus R. Douglass Institute, West Virginia State University, Institute, WV 25112, USA; (K.C.); (P.S.); (H.Y.); (P.N.)
| | - Hyndavi Yammanuru
- Department of Biology, Gus R. Douglass Institute, West Virginia State University, Institute, WV 25112, USA; (K.C.); (P.S.); (H.Y.); (P.N.)
| | - Padma Nimmakayala
- Department of Biology, Gus R. Douglass Institute, West Virginia State University, Institute, WV 25112, USA; (K.C.); (P.S.); (H.Y.); (P.N.)
| | - Manohar Chakrabarti
- School of Integrative Biological and Chemical Sciences, University of Texas Rio Grande Valley, Edinburg, TX 78539, USA;
| | - Umesh K. Reddy
- Department of Biology, Gus R. Douglass Institute, West Virginia State University, Institute, WV 25112, USA; (K.C.); (P.S.); (H.Y.); (P.N.)
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Ullah A, Lin YJ, Zhang H, Yu XZ. Identification of the Key Genes Involved in Proline-Mediated Modification of Cell Wall Components in Rice Seedlings under Trivalent Chromium Exposure. Toxics 2023; 12:4. [PMID: 38276717 PMCID: PMC10818556 DOI: 10.3390/toxics12010004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 12/15/2023] [Accepted: 12/18/2023] [Indexed: 01/27/2024]
Abstract
Chromium (Cr) toxicity exerts a detrimental effect on various physiological, biochemical, and molecular attributes of plants including the structure and functions of cell walls. On the other hand, the exogenous application of proline (Pro) is a beneficial strategy to overcome Cr toxicity. Therefore, it is a novel strategy to find the key genes associated with cell wall composition in rice under trivalent Cr with/without Pro application. A total of 203 genes were activated in the four cell wall biosynthesis pathways under chromium stress, namely cellulose (60), hemicellulose (57), lignin (35), and pectin (51). Based on the expression abundance of microarrays, the number of differentially expressed genes, and the expression level of genes, the lignin pathway was a crucial pathway in response to Cr treatments, followed by the cellulose pathway. Through the estimation of gene expression variation factors between 'Cr' and 'Cr+Pro' treatments, OsUGP1, OsBGLU24, OsBGLU29, OsBGLU33, OsBMY1, and OsBMY2 in the cellulose pathway; OsXTH9, OsXTH10, OsXTH16, OsGAUT3, OsGAUT19, OsGAUT28, OsXTH1, OsGAUT12, and OsGAUT21 in the hemicellulose pathway; OsPAL3, OsPAL3, OsPOX1, and OsPRX77 in the lignin pathway; and OsPME25, OsPGL27, OsPME26, OsPGL9, and OsPLL12 in the pectin pathway are the key genes involved in cell wall modification during Cr exposure with exogenous Pro application. The Pro-mediated activation of these genes could be crucial players in modifying the cell wall structure and composition of rice plants under Cr stress, which needs to be further clarified.
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Affiliation(s)
| | | | | | - Xiao-Zhang Yu
- College of Environmental Science & Engineering, Guilin University of Technology, Guilin 541004, China; (A.U.); (Y.-J.L.); (H.Z.)
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Molla MSH, Kumdee O, Wongkaew A, Khongchiu P, Worathongchai N, Alam MR, Mahmud AA, Nakasathien S. Potentiality of Sustainable Maize Production under Rainfed Conditions in the Tropics by Triggering Agro-Physio-Biochemical Traits Ascertained from a Greenhouse. Plants (Basel) 2023; 12:4192. [PMID: 38140518 PMCID: PMC10748014 DOI: 10.3390/plants12244192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 12/06/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023]
Abstract
A major portion of maize is produced under rainfed conditions in the tropics with relatively poor yield because of the unpredictable and irregular distribution of seasonal rainfall, as well as a decline in pre-rainy season rainfall due to climate change, so identification of sustainable production options is utmost needed. Thus, the present studies were conducted in a greenhouse (GH) to ascertain the water stress-tolerant traits of maize and at the field level in the tropical environment of Thailand to see the stimulating possibility of the ascertained traits in a locally popular cultivar using ethephon. Depending on tolerance level, three maize genotypes (Suwan 2301 > Suwan 4452 > S 7328) were tested under different water conditions-well-watered, short-term, and long-term water stress-in the GH. At the field level, the locally popular maize cultivar Suwan 5819 was examined with six ethephon levels (doses in g a.i. ha-1 of ethephon, i.e., T1, 281 at V6 stage; T2, 281 at V6 + 281 at V10 stage; T3, 281 at V10 stage; T4, 562 at V6 stage; T5, 562 at V6 + 562 at V10 stage; T6, 562 at V10 stage) against no ethephon application (T0) under rainfed conditions. Maize suffered from the scarcity of sufficient rainfall during 26-39 days after planting (DAP) and 43-63 DAP in the field. The yield index (YI) was identified from biplot analysis as one of the suitable standards for drought tolerance checks for maize at GH as well as at field level in the tropics. The YI value of observed agro-physio-biochemical traits of maize in GH showed that relative water content (RWC, 1.23), stem base diameter (SBD, 1.21), total soluble sugar (TSS, 1.15), proline (Pr, 1.13), aboveground plant biomass (APB, 1.13), root weight (RW, 1.13), relative growth rate (RGR, 1.15), specific leaf weight (SLW, 1.12), and net assimilation rate (NAR, 1.08) were the most desirable. Efforts were made to stimulate these traits under water stress at the field level. Ethephon application as T1 helped to gain higher kernel yield (KY) (5.26 t ha-1) with the support of higher RWC (90.38%), proline (24.79 µmol g-1 FW), TSS (1629 mg g-1 FW), SBD (24.49 mm), APB (271.34 g plant-1), SLW (51.71 g m-2), RGR (25.26 mg plant-1 day-1), and NAR (0.91 mg cm-2 day-1) compared to others, especially no ethephon application. Furthermore, the attributes SLW, SBD, Pr, heat utilization efficiency (HUE), 100-kernel weight, TSS, electrolyte leakage, and lodging percentage showed a substantial direct effect and significant correlation with KY. Aside from higher KY, ethephon application as T1 tactics resulted in higher values of energy efficiency (1.66), HUE (2.99 kg ha-1 °C days-1), gross margin (682.02 USD ha-1), MBCR (3.32), and C absorption (6.19 t C ha-1), indicating that this practice may be a good option for maize sustainable production under rainfed conditions.
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Affiliation(s)
- Md. Samim Hossain Molla
- Department of Agronomy, Faculty of Agriculture, Kasetsart University, Bangkok 10900, Thailand; (A.W.)
- On-Farm Research Division, Bangladesh Agricultural Research Institute, Gazipur 1701, Bangladesh; (M.R.A.); (A.-A.M.)
| | - Orawan Kumdee
- Agricultural Research and Technology Transfer Center, Faculty of Agriculture, Kasetsart University, Bangkok 10900, Thailand;
| | - Arunee Wongkaew
- Department of Agronomy, Faculty of Agriculture, Kasetsart University, Bangkok 10900, Thailand; (A.W.)
| | - Phanuphong Khongchiu
- Expert Center of Innovative Agriculture, Thailand Institute of Scientific and Technological Research, Pathum Thani 12120, Thailand;
| | - Nattaporn Worathongchai
- National Corn and Sorghum Research Center, Faculty of Agriculture, Kasetsart University, Nakhon Ratchasima 30320, Thailand;
| | - Md. Robiul Alam
- On-Farm Research Division, Bangladesh Agricultural Research Institute, Gazipur 1701, Bangladesh; (M.R.A.); (A.-A.M.)
| | - Abdullah-Al Mahmud
- On-Farm Research Division, Bangladesh Agricultural Research Institute, Gazipur 1701, Bangladesh; (M.R.A.); (A.-A.M.)
| | - Sutkhet Nakasathien
- Department of Agronomy, Faculty of Agriculture, Kasetsart University, Bangkok 10900, Thailand; (A.W.)
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Hautiere M, Maffucci I, Costa N, Herbet A, Essono S, Padiolleau-Lefevre S, Boquet D. The functionality of a therapeutic antibody candidate restored by a single mutation from proline to threonine in the variable region. Hum Vaccin Immunother 2023; 19:2279867. [PMID: 38012091 PMCID: PMC10760395 DOI: 10.1080/21645515.2023.2279867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 11/02/2023] [Indexed: 11/29/2023] Open
Abstract
mAbs play an essential role in the therapeutic arsenal. Our laboratory has patented the Rendomab-B49 mAb targeting the endothelin B receptor (ETB). This G protein-coupled receptor plays a driving role in the progression of numerous cancers. We chimerized our mAb (xiRB49) to evaluate its preclinical therapeutic efficacy in different ETB+ tumor models with an antibody drug conjugate approach. As previously reported, the chimerization process of an antibody can alter its functionality. In this article, we present the chimerization of RB49. xiRB49 purified by Protein A remained perfectly soluble and did not aggregate, but it lost all its ability to recognize ETB. A detailed analysis of its variable region using IMGT tools allowed us to identify an unusual proline at position 125. In silico mAb modeling and in vitro experiments were performed for a better understanding of xiRB49 structure-function relationships. Our results show that the proline in position 125 on the heavy chain alters the xiRB49 CDR3 light chain conformation and its mutation to threonine allows complete functional recovery.
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Affiliation(s)
- Marie Hautiere
- Département Médicaments et Technologies pour la Santé (DMTS), SPI, Université Paris-Saclay, CEA, Gif-sur-Yvette, France
| | - Irene Maffucci
- Centre de Recherche de Royallieu, CNRS UMR 7025, Génie Enzymatique et Cellulaire, Compiègne Cedex, France
- Centre de Recherche de Royallieu, Sorbonne Universités, Université de Technologie de Compiègne, Génie Enzymatique et Cellulaire, Compiègne Cedex, France
| | - Narciso Costa
- Département Médicaments et Technologies pour la Santé (DMTS), SPI, Université Paris-Saclay, CEA, Gif-sur-Yvette, France
| | - Amaury Herbet
- Département Médicaments et Technologies pour la Santé (DMTS), SPI, Université Paris-Saclay, CEA, Gif-sur-Yvette, France
| | | | - Séverine Padiolleau-Lefevre
- Centre de Recherche de Royallieu, CNRS UMR 7025, Génie Enzymatique et Cellulaire, Compiègne Cedex, France
- Centre de Recherche de Royallieu, Sorbonne Universités, Université de Technologie de Compiègne, Génie Enzymatique et Cellulaire, Compiègne Cedex, France
| | - Didier Boquet
- Département Médicaments et Technologies pour la Santé (DMTS), SPI, Université Paris-Saclay, CEA, Gif-sur-Yvette, France
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Burkhardt J, Zinsmeister D, Roth-Nebelsick A, Hüging H, Pariyar S. Ambient aerosols increase stomatal transpiration and conductance of hydroponic sunflowers by extending the hydraulic system to the leaf surface. Front Plant Sci 2023; 14:1275358. [PMID: 38098798 PMCID: PMC10720890 DOI: 10.3389/fpls.2023.1275358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 11/06/2023] [Indexed: 12/17/2023]
Abstract
Introduction Many atmospheric aerosols are hygroscopic and play an important role in cloud formation. Similarly, aerosols become sites of micro-condensation when they deposit to the upper and lower surfaces of leaves. Deposited salts, in particular can trigger condensation at humidities considerably below atmospheric saturation, according to their hygroscopicity and the relative humidity within the leaf boundary layer. Salt induced water potential gradients and the resulting dynamics of concentrated salt solutions can be expected to affect plant water relations. Methods Hydroponic sunflowers were grown in filtered (FA) and unfiltered, ambient air (AA). Sap flow was measured for 18 days and several indicators of incipient drought stress were studied. Results At 2% difference in mean vapor pressure deficit (D), AA sunflowers had 49% higher mean transpiration rates, lower osmotic potential, higher proline concentrations, and different tracer transport patterns in the leaf compared to FA sunflowers. Aerosols increased plant conductance particularly at low D. Discussion The proposed mechanism is that thin aqueous films of salt solutions from deliquescent deposited aerosols enter into stomata and cause an extension of the hydraulic system. This hydraulic connection leads - parallel to stomatal water vapor transpiration - to wick-like stomatal loss of liquid water and to a higher impact of D on plant water loss. Due to ample water supply by hydroponic cultivation, AA plants thrived as well as FA plants, but under more challenging conditions, aerosol deposits may make plants more susceptible to drought stress.
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Affiliation(s)
- Juergen Burkhardt
- Institute of Crop Science and Resource Conservation, Plant Nutrition Group, University of Bonn, Bonn, Germany
| | - Daniel Zinsmeister
- Institute of Crop Science and Resource Conservation, Plant Nutrition Group, University of Bonn, Bonn, Germany
| | - Anita Roth-Nebelsick
- Department Palaeontology, State Museum of Natural History Stuttgart, Stuttgart, Germany
| | - Hubert Hüging
- Institute of Crop Science and Resource Conservation, Crop Science Group, University of Bonn, Bonn, Germany
| | - Shyam Pariyar
- Institute of Crop Science and Resource Conservation, Plant Nutrition Group, University of Bonn, Bonn, Germany
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25
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Lee J, Tang JCY, Dutton J, Dunn R, Fraser WD, Enright K, Clark DR, Stewart CE, Erskine RM. The collagen synthesis response to an acute bout of resistance exercise is greater when ingesting 30 g versus 15 g and 0 g hydrolyzed collagen in resistance-trained young men. J Nutr 2023:S0022-3166(23)72738-7. [PMID: 38007183 DOI: 10.1016/j.tjnut.2023.10.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 09/27/2023] [Accepted: 10/26/2023] [Indexed: 11/27/2023] Open
Abstract
BACKGROUND Resistance exercise (RE) stimulates collagen synthesis in skeletal muscle and tendon but there is limited and equivocal evidence regarding an effect of collagen supplementation and exercise on collagen synthesis. Furthermore, it is not known if a dose-response exists regarding the effect of hydrolyzed collagen (HC) ingestion and RE on collagen synthesis. OBJECTIVE We aimed to determine the HC dose-response effect on collagen synthesis following high-intensity RE in resistance-trained young men. METHODS Using a double-blind, randomized cross-over design, 10 resistance-trained men (age: 26±3 years; height: 1.77±0.04 m; mass: 79.7±7.0 kg) ingested 0g, 15g or 30g HC with 50mg vitamin C 1h prior to performing four sets' barbell back-squat RE at 10-repetition maximum load, after which they rested for six hours. Blood samples were collected throughout each of the three interventions to analyse procollagen type Ⅰ N-terminal propeptide (PⅠNP) and β-isomerized C-terminal telopeptide of type I collagen (β-CTX) concentration, and the concentration of 18 collagen amino acids. RESULTS The serum PⅠNP concentration×time area-under-the-curve (AUC) was greater for 30g (267±79 μg∙L-1∙h) than 15g (235±70 μg∙L-1∙h, P=0.039) and 0g HC (219±88 μg∙L-1∙h, P=0.005) but there was no difference between 0g and 15g HC (P=0.675). The AUCs of glycine and proline were greater for 30g than for 15g and 0g HC (P<0.05). Plasma β-CTX concentration decreased from -1h to +6h (P<0.05), with no differences between interventions. CONCLUSION The greater PINP AUC suggests 30g HC ingested prior to high-intensity RE augments whole body collagen synthesis more than 15g and 0g HC in resistance-trained young men.
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Affiliation(s)
- Joonsung Lee
- School of Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK
| | - Jonathan C Y Tang
- Bioanalytical Facility, Norwich Medical School, University of East Anglia, Norwich, UK; Clinical Biochemistry, Departments of Laboratory Medicine, Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, UK
| | - John Dutton
- Bioanalytical Facility, Norwich Medical School, University of East Anglia, Norwich, UK
| | - Rachel Dunn
- Bioanalytical Facility, Norwich Medical School, University of East Anglia, Norwich, UK; Clinical Biochemistry, Departments of Laboratory Medicine, Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, UK
| | - William D Fraser
- Bioanalytical Facility, Norwich Medical School, University of East Anglia, Norwich, UK; Clinical Biochemistry, Departments of Laboratory Medicine, Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, UK; Departments of Diabetes and Endocrinology, Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, UK
| | - Kevin Enright
- School of Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK
| | - David R Clark
- School of Health Sciences, Robert Gordon University, Aberdeen, UK
| | - Claire E Stewart
- School of Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK
| | - Robert M Erskine
- School of Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK; Institute of Sport, Exercise and Health, University College London, London, UK.
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Borde NL, Dweikat I. Identification of Genomic Regions Associated with Seedling Frost Tolerance in Sorghum. Genes (Basel) 2023; 14:2117. [PMID: 38136939 PMCID: PMC10743030 DOI: 10.3390/genes14122117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 11/19/2023] [Accepted: 11/21/2023] [Indexed: 12/24/2023] Open
Abstract
Sorghum bicolor (L.) Moench is the fifth most valuable cereal crop globally. Although sorghum is tolerant to drought and elevated temperatures, it is susceptible to chilling, frost, and freezing stresses. Sorghum seeds planted in April may encounter frequent frost during late April and early May. Early spring freezing temperatures adversely affect crop development and yield. This study aims to identify genomic regions associated with frost tolerance at the seedlings stage. Breeding freeze-tolerant cultivars require selection for freeze tolerance in nurseries. However, the unpredictability of environmental conditions complicates the identification of freeze-tolerant genotypes. An indoor selection protocol has been developed to investigate the genetic determinism of freeze tolerance at the seedling stages and its correlation with several developmental traits. To accomplish this, we used two populations of recombinant inbred lines (RIL) developed from crosses between cold-tolerant (CT19, ICSV700) and cold-sensitive (TX430, M81E) parents. The derived RIL populations were evaluated for single nucleotide polymorphism (SNP) using genotype-by-sequencing (GBS) under controlled environments for their response to freezing stress. Linkage maps were constructed with 464 and 875 SNPs for the CT19 X TX430 (C1) and ICSV700 X M81E(C2) populations. Using quantitative trait loci (QTL) mapping, we identified six QTLs conferring tolerance to freezing temperatures. One QTL in the C1 population and four QTLs in the C2 population, explain 17.75-98% of the phenotypic variance of traits measured. Proline leaf content was increased in response to exposing the seedlings to low temperatures. Candidate QTLs identified in this study could be further exploited to develop frost-tolerant cultivars as proxies in marker-assisted breeding, genomic selection, and genetic engineering.
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Affiliation(s)
| | - Ismail Dweikat
- Department of Agronomy and Horticulture, University of Nebraska, Lincoln, NE 68583-0915, USA;
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Khaliq G, Ali S, Ejaz S, Abdi G, Faqir Y, Ma J, Siddiqui MW, Ali A. γ-Aminobutyric acid is involved in overlapping pathways against chilling injury by modulating glutamate decarboxylase and defense responses in papaya fruit. Front Plant Sci 2023; 14:1233477. [PMID: 38034576 PMCID: PMC10687426 DOI: 10.3389/fpls.2023.1233477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 08/28/2023] [Indexed: 12/02/2023]
Abstract
The effect of γ-aminobutyric acid (GABA) treatment at two concentrations (1 mM or 5 mM) on papaya fruit stored at 4°C and 80%-90% relative humidity for 5 weeks was investigated. The application of GABA at 5 mM apparently inhibited chilling injury, internal browning, electrolyte leakage, malondialdehyde (MDA), hydrogen peroxide (H2O2), polyphenol oxidase (PPO), phospholipase D (PLD), and lipoxygenase (LOX) activities of papaya fruit. Fruit treated with 5 mM GABA enhanced the activities of ascorbate peroxidase (APX), catalase (CAT), glutathione reductase (GR), superoxide dismutase (SOD), glutamate decarboxylase (GAD), and phenylalanine ammonia-lyase (PAL). In addition, GABA treatment significantly displayed higher levels of proline, endogenous GABA accumulation, phenolic contents, and total antioxidant activity than the nontreated papaya. The results suggested that GABA treatment may be a useful approach to improving the chilling tolerance of papaya fruit by reducing oxidative stress and enhancing the defense system.
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Affiliation(s)
- Ghulam Khaliq
- Department of Horticulture, Faculty of Agriculture, Lasbela University of Agriculture, Water and Marine Sciences, Uthal, Pakistan
| | - Sajid Ali
- Department of Horticulture, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, Pakistan
| | - Shaghef Ejaz
- Department of Horticulture, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, Pakistan
| | - Gholamreza Abdi
- Department of Biotechnology, Persian Gulf Research Institute, Persian Gulf University, Bushehr, Iran
| | - Yahya Faqir
- Engineering Research Center for Biomass Resource Utilization and Modification of Sichuan Province, Southwest University of Science and Technology, Mianyang, China
| | - Jiahua Ma
- Engineering Research Center for Biomass Resource Utilization and Modification of Sichuan Province, Southwest University of Science and Technology, Mianyang, China
| | - Mohammed Wasim Siddiqui
- Department of Food Science and Post-Harvest Technology, Bihar Agricultural University, Sabour, India
| | - Asgar Ali
- Centre of Excellence for Postharvest Biotechnology (CEPB), School of Biosciences, University of Nottingham Malaysia, Semenyih, Malaysia
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Vuksanović V, Kovačević B, Kebert M, Pavlović L, Kesić L, Čukanović J, Orlović S. In vitro selection of drought-tolerant white poplar clones based on antioxidant activities and osmoprotectant content. Front Plant Sci 2023; 14:1280794. [PMID: 38046609 PMCID: PMC10690421 DOI: 10.3389/fpls.2023.1280794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 11/01/2023] [Indexed: 12/05/2023]
Abstract
Introduction In light of upcoming climate change, there is an urgent requirement for tree improvement regarding adaptability to drought-caused stress and the development of quick and reliable screening methodologies for genotypes' drought tolerance. White poplar is, despite its high adaptability, considered to be an endangered tree species in Serbia, which gives it special importance in the preservation and improvement of biodiversity of riparian ecosystems. The main goal of this research was to evaluate the tolerance of five white poplar clones to the presence of polyethylene glycol (PEG 6000 molecular weight 6000) (different concentrations (e.g. 0 g/L, 1 g/L, 10 g/L, 20 g/L, and 50 g/L) in Aspen Culture Medium (ACM). Methods The tolerance of the clones was evaluated by using morphological parameters (shoot fresh and dry weight, root fresh and dry weight), photosynthetic pigments (contents of chlorophyll a, chlorophyll b, carotenoids, and chlorophyll a+b), and biochemical parameters (total phenolic content, total flavonoid content, ferric reducing antioxidant power, antioxidant activities (DPPH activity and ABTS assay), free proline content and glycine betaine content. Results and Discussion The values of morphological and photosynthetic pigments declined with an increase in the concentration of PEG 6000. At a concentration of 50 g/L, the content of shoot fresh mass decreased by 41%, the content of Chl a by 68%, Chl b by 65%, and Car by 76% compared to the control. Also, at the same medium, there was an increase in the content of total phenols, accumulation of proline, the content of glycine betaine as well as in antioxidant activity. Based on the obtained results, it can be assumed that more drought-tolerant clones are characterized by high values for biomass, high content of photosynthetic pigments, and high content of proline and glycine betaine in conditions similar to drought in vitro. Clone L-80 showed better results in most of the tested parameters, especially compared to the reference clone Villafranca.
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Affiliation(s)
- Vanja Vuksanović
- Department of Fruit Growing, Viticulture, Horticulture and Landscape Architecture, Faculty of Agriculture, University of Novi Sad, Novi Sad, Serbia
| | - Branislav Kovačević
- Institute of Lowland Forestry and Environment, University of Novi Sad, Novi Sad, Serbia
| | - Marko Kebert
- Institute of Lowland Forestry and Environment, University of Novi Sad, Novi Sad, Serbia
| | - Lazar Pavlović
- Department of Fruit Growing, Viticulture, Horticulture and Landscape Architecture, Faculty of Agriculture, University of Novi Sad, Novi Sad, Serbia
| | - Lazar Kesić
- Institute of Lowland Forestry and Environment, University of Novi Sad, Novi Sad, Serbia
| | - Jelena Čukanović
- Department of Fruit Growing, Viticulture, Horticulture and Landscape Architecture, Faculty of Agriculture, University of Novi Sad, Novi Sad, Serbia
| | - Saša Orlović
- Department of Fruit Growing, Viticulture, Horticulture and Landscape Architecture, Faculty of Agriculture, University of Novi Sad, Novi Sad, Serbia
- Institute of Lowland Forestry and Environment, University of Novi Sad, Novi Sad, Serbia
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29
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Hardy MLM, Lakhiani D, Morris MB, Day ML. Proline and Proline Analogues Improve Development of Mouse Preimplantation Embryos by Protecting Them against Oxidative Stress. Cells 2023; 12:2640. [PMID: 37998375 PMCID: PMC10670569 DOI: 10.3390/cells12222640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/10/2023] [Accepted: 11/13/2023] [Indexed: 11/25/2023] Open
Abstract
The culture of embryos in the non-essential amino acid L-proline (Pro) or its analogues pipecolic acid (PA) and L-4-thiazolidine carboxylic acid (L4T) improves embryo development, increasing the percentage that develop to the blastocyst stage and hatch. Staining of 2-cell and 4-cell embryos with tetramethylrhodamine methyl ester and 2',7'-dichlorofluorescein diacetate showed that the culture of embryos in the presence of Pro, or either of these analogues, reduced mitochondrial activity and reactive oxygen species (ROS), respectively, indicating potential mechanisms by which embryo development is improved. Inhibition of the Pro metabolism enzyme, proline oxidase, by tetrahydro-2-furoic-acid prevented these reductions and concomitantly prevented the improved development. The ways in which Pro, PA and L4T reduce mitochondrial activity and ROS appear to differ, despite their structural similarity. Specifically, the results are consistent with Pro reducing ROS by reducing mitochondrial activity while PA and L4T may be acting as ROS scavengers. All three may work to reduce ROS by contributing to the GSH pool. Overall, our results indicate that reduction in mitochondrial activity and oxidative stress are potential mechanisms by which Pro and its analogues act to improve pre-implantation embryo development.
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30
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Antoniazzi G, Schäfer RJB, Biedermann M, Rüttimann E, Wennemers H. Isonitrile- Proline - A Versatile Handle for the Chemoselective Derivatization of Collagen Peptides. Chemistry 2023; 29:e202302389. [PMID: 37498143 DOI: 10.1002/chem.202302389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 07/26/2023] [Accepted: 07/27/2023] [Indexed: 07/28/2023]
Abstract
Functional groups that allow for chemoselective and bioorthogonal derivatization are valuable tools for the labelling of peptides and proteins. The isonitrile is such a group but synthetic methods for its incorporation into peptides by solid-phase peptide synthesis are not known. Here, we introduce (4S)- and (4R)-isonitrileproline (Inp) as building blocks for solid-phase peptide synthesis. Conformational studies of (4S)- and (4R)-Inp and thermal stability analysis of Inp-containing collagen triple helices revealed that the isonitrile group exerts a stereoelectronic gauche effect. We showcase the value of Inp for bioorthogonal labelling by derivatization of Inp-containing collagen model peptides (CMPs). Dual labelling with a pair of bioorthogonal reactions of a CMP containing Inp and azidoproline residues further highlights the versatility of the new isonitrile-containing amino acids.
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Affiliation(s)
- Giuseppe Antoniazzi
- Laboratory of Organic Chemistry, ETH Zürich, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland
| | - Rebecca J B Schäfer
- Laboratory of Organic Chemistry, ETH Zürich, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland
| | - Maurice Biedermann
- Laboratory of Organic Chemistry, ETH Zürich, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland
| | - Eric Rüttimann
- Laboratory of Organic Chemistry, ETH Zürich, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland
| | - Helma Wennemers
- Laboratory of Organic Chemistry, ETH Zürich, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland
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31
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Alamer KH. Exogenous Hydrogen Sulfide Supplementation Alleviates the Salinity-Stress-Mediated Growth Decline in Wheat ( Triticum aestivum L.) by Modulating Tolerance Mechanisms. Plants (Basel) 2023; 12:3464. [PMID: 37836204 PMCID: PMC10574924 DOI: 10.3390/plants12193464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023]
Abstract
The impact of the exogenous supplementation of hydrogen sulfide (20 and 50 µM HS) on growth, enzyme activity, chlorophyll pigments, and tolerance mechanisms was studied in salinity-stressed (100 mM NaCl) wheat. Salinity significantly reduced height, fresh and dry weight, chlorophyll, and carotenoids. However, the supplementation of HS (at both concentrations) increased these attributes and also mitigated the decline to a considerable extent. The exogenous supplementation of HS reduced the accumulation of hydrogen peroxide (H2O2) and methylglyoxal (MG), thereby reducing lipid peroxidation and increasing the membrane stability index (MSI). Salinity stress increased H2O2, MG, and lipid peroxidation while reducing the MSI. The activity of nitrate reductase was reduced due to NaCl. However, the supplementation of HS alleviated the decline with obvious effects being seen due to 50 µM HS. The activity of antioxidant enzymes (superoxide dismutase, catalase, ascorbate peroxidase, and glutathione reductase) was assayed and the content of reduced glutathione (GSH) increased due to salt stress and the supplementation of HS further enhanced their activity. A decline in ascorbic acid due to salinity stress was alleviated due to HS treatment. HS treatment increased the endogenous concentration of HS and nitric oxide (NO) under normal conditions. However, under salinity stress, HS supplementation resulted in a reduction in HS and NO as compared to NaCl-treated plants. In addition, proline and glycine betaine increased due to HS supplementation. HS treatment reduced sodium levels, while the increase in potassium justified the beneficial role of applied HS in improving salt tolerance in wheat.
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Affiliation(s)
- Khalid H Alamer
- Biological Sciences Department, Faculty of Science and Arts, King Abdulaziz University, Rabigh 21911, Saudi Arabia
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32
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Ingrisano R, Tosato E, Trost P, Gurrieri L, Sparla F. Proline, Cysteine and Branched-Chain Amino Acids in Abiotic Stress Response of Land Plants and Microalgae. Plants (Basel) 2023; 12:3410. [PMID: 37836150 PMCID: PMC10574504 DOI: 10.3390/plants12193410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 09/22/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023]
Abstract
Proteinogenic amino acids are the building blocks of protein, and plants synthesize all of them. In addition to their importance in plant growth and development, growing evidence underlines the central role played by amino acids and their derivatives in regulating several pathways involved in biotic and abiotic stress responses. In the present review, we illustrate (i) the role of amino acids as an energy source capable of replacing sugars as electron donors to the mitochondrial electron transport chain and (ii) the role of amino acids as precursors of osmolytes as well as (iii) precursors of secondary metabolites. Among the amino acids involved in drought stress response, proline and cysteine play a special role. Besides the large proline accumulation occurring in response to drought stress, proline can export reducing equivalents to sink tissues and organs, and the production of H2S deriving from the metabolism of cysteine can mediate post-translational modifications that target protein cysteines themselves. Although our general understanding of microalgae stress physiology is still fragmentary, a general overview of how unicellular photosynthetic organisms deal with salt stress is also provided because of the growing interest in microalgae in applied sciences.
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Affiliation(s)
| | | | | | - Libero Gurrieri
- Department of Pharmacy and Biotechnology FaBiT, University of Bologna, 40126 Bologna, Italy; (R.I.); (E.T.); (P.T.); (F.S.)
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33
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Al-Turki A, Murali M, Omar AF, Rehan M, Sayyed R. Recent advances in PGPR-mediated resilience toward interactive effects of drought and salt stress in plants. Front Microbiol 2023; 14:1214845. [PMID: 37829451 PMCID: PMC10565232 DOI: 10.3389/fmicb.2023.1214845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Accepted: 09/07/2023] [Indexed: 10/14/2023] Open
Abstract
The present crisis at hand revolves around the need to enhance plant resilience to various environmental stresses, including abiotic and biotic stresses, to ensure sustainable agriculture and mitigate the impact of climate change on crop production. One such promising approach is the utilization of plant growth-promoting rhizobacteria (PGPR) to mediate plant resilience to these stresses. Plants are constantly exposed to various stress factors, such as drought, salinity, pathogens, and nutrient deficiencies, which can significantly reduce crop yield and quality. The PGPR are beneficial microbes that reside in the rhizosphere of plants and have been shown to positively influence plant growth and stress tolerance through various mechanisms, including nutrient solubilization, phytohormone production, and induction of systemic resistance. The review comprehensively examines the various mechanisms through which PGPR promotes plant resilience, including nutrient acquisition, hormonal regulation, and defense induction, focusing on recent research findings. The advancements made in the field of PGPR-mediated resilience through multi-omics approaches (viz., genomics, transcriptomics, proteomics, and metabolomics) to unravel the intricate interactions between PGPR and plants have been discussed including their molecular pathways involved in stress tolerance. Besides, the review also emphasizes the importance of continued research and implementation of PGPR-based strategies to address the pressing challenges facing global food security including commercialization of PGPR-based bio-formulations for sustainable agricultural.
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Affiliation(s)
- Ahmad Al-Turki
- Department of Plant Production and Protection, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah, Saudi Arabia
| | - M. Murali
- Department of Studies in Botany, University of Mysore, Mysore, India
| | - Ayman F. Omar
- Department of Plant Production and Protection, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah, Saudi Arabia
- Department of Plant Pathology, Plant Pathology, and Biotechnology Lab. and EPCRS Excellence Center, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh, Egypt
| | - Medhat Rehan
- Department of Plant Production and Protection, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah, Saudi Arabia
- Department of Genetics, College of Agriculture, Kafrelsheikh University, Kafr El-Sheikh, Egypt
| | - R.Z. Sayyed
- Department of Microbiology, PSGVP Mandal’s S I Patil Arts, G B Patel Science and STKV Sangh Commerce College, Shahada, India
- Faculty of Health and Life Sciences, INTI International University, Nilai, Negeri Sembilan, Malaysia
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34
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Lu X, Wu Q, Nie K, Wu H, Chen G, Wang J, Ma Z. Exogenous phthalanilic acid induces resistance to drought stress in pepper seedlings ( Capsicum annuum L.). Front Plant Sci 2023; 14:1156276. [PMID: 37828921 PMCID: PMC10565039 DOI: 10.3389/fpls.2023.1156276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 09/04/2023] [Indexed: 10/14/2023]
Abstract
Drought stress (DS) is one of the main abiotic negative factors for plants. Phthalanilic acid (PPA), as a plant growth regulator, can promote the growth and development of crops. In order to evaluate the ideal application concentration and frequency of PPA-induced drought resistance in pepper (Capsicum annuum) seedlings, the concentration of PPA was 133.3 mg·L-1; 200.0 mg·L-1; 266.7 mg·L-1, and some key indicators were investigated, including leaf wilting index (LWI), relative water content (RWC), and malondialdehyde (MDA). We found that the LWI and RWC in the PPA-applied pepper leaves under light drought stress (LDS) and moderate drought stress (MDS) were all elevated, while MDA contents were decreased. To better understand how PPA makes pepper drought resistant, we examined the photosynthetic characteristics, growth parameters, antioxidant activities, and osmotic substances in pepper seedlings treated twice with PPA at a concentration of 133.3 mg·L-1 under LDS, MDS, and severe drought stress (SDS). Results showed that PPA increased the chlorophyll, plant height, stem diameter, root-shoot ratio, and seedling index of pepper leaves under LDS, MDS, and SDS. The net photosynthetic rate (Pn), stomatal conductance (Gs), intercellular CO2 concentration (Ci), transpiration rates (Tr), and water-use efficiency (WUE) in the PPA-treated pepper leaves under LDS and MDS were improved, while their stomatal limitation (Ls) were reduced. PPA also boosted the activities of enzymatic antioxidants (superoxide dismutase, catalase, and peroxidase), as well as enhanced the accumulation of osmotic substances such as soluble sugar, soluble protein, and free proline in pepper leaves under LDS, MDS, and SDS. Thus, PPA can alleviate the growth inhibition and damage to pepper seedlings caused by DS, and the PPA-mediated efficacy may be associated with the improvement in PPA-mediated antioxidant activities, Pn, and accumulation of osmotic substances.
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Affiliation(s)
- Xiaopeng Lu
- College of Plant Protection, Northwest A & F University, Yangling, China
| | - Qiong Wu
- College of Plant Protection, Northwest A & F University, Yangling, China
| | - Keyi Nie
- College of Plant Protection, Northwest A & F University, Yangling, China
| | - Hua Wu
- College of Plant Protection, Northwest A & F University, Yangling, China
- Provincial Center for Bio-Pesticide Engineering, Yangling, Shaanxi, China
| | - Guangyou Chen
- College of Plant Protection, Northwest A & F University, Yangling, China
- Provincial Center for Bio-Pesticide Engineering, Yangling, Shaanxi, China
| | - Jun Wang
- Institute of Water Conservancy and Soil Fertilizer, Xinjiang Academy of Agricultural Sciences/Northwest Oasis Water-saving Agriculture Key Laboratory, Ministry of Agriculture and Rural Affairs, Shihezi, Xinjiang, China
| | - Zhiqing Ma
- College of Plant Protection, Northwest A & F University, Yangling, China
- Provincial Center for Bio-Pesticide Engineering, Yangling, Shaanxi, China
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35
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Mohamadzadeh M, Janmohammadi M, Abbasi A, Sabaghnia N, Ion V. Physiochemical response of Cicer arietinum to zinc-containing mesoporous silica nanoparticles under water stress. BioTechnologia (Pozn) 2023; 104:263-273. [PMID: 37850114 PMCID: PMC10578114 DOI: 10.5114/bta.2023.130729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 05/11/2023] [Accepted: 05/17/2023] [Indexed: 10/19/2023] Open
Abstract
Chickpea is an important food legume cultivated in semiarid regions, where water scarcity and nutrient deficiencies negatively affect crop production. This study aimed to investigate the effect of zinc and silicon from different sources, including bulk and nanostructures, on various biochemical traits of chickpea plants grown under field conditions in Maragheh, Northwest Iran. The main experimental factor consisted of three soil moisture levels: irrigation to 90% of field capacity (FC), 60% FC, and 30% FC. The subplots were assigned for foliar application of different fertilizers: control (distilled water), zinc sulfate (ZnSO), silicon dioxide nanoparticles (SiO2 NPs), ZnSO + SiO2 NPs, and zinc-containing mesoporous silica nanoparticles (MSNPs -Zn). The results showed that although decreased soil moisture had a negative impact on several biochemical processes, foliar application of Zn and Si in both conventional bulk and nanostructure significantly affected plant antioxidant system, plasma membrane integrity, and the concentrations of photosynthetic pigments and compatible solutes. However, the most inducing effects on catalase, ascorbate peroxidase, guaiacol peroxidase, superoxide dismutase, and anthocyanin were observed with the foliar spray of MSNPs-Zn and ZnSO + SiO2 under 60% FC. Moreover, foliar spray of MSNPs-Zn alleviated the negative effects of water deficit stress on photosynthetic pigments (chlorophyll a /b and carotenoid content). Water stress significantly induced the accumulation of free proline in the leaves. Overall, the results indicated that foliar spray of MSNPs -Zn, especially under 60% FC, improved the plant's defense system, scavenged reactive oxygen species, and enhanced the accumulation and stability of pigments, thereby mitigating the effects of drought stress.
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Affiliation(s)
- Maryam Mohamadzadeh
- Department of Plant Production and Genetics, Faculty of Agriculture, University of Maragheh, Maragheh, Iran
| | - Mohsen Janmohammadi
- Department of Plant Production and Genetics, Faculty of Agriculture, University of Maragheh, Maragheh, Iran
| | - Amin Abbasi
- Department of Plant Production and Genetics, Faculty of Agriculture, University of Maragheh, Maragheh, Iran
| | - Naser Sabaghnia
- Department of Plant Production and Genetics, Faculty of Agriculture, University of Maragheh, Maragheh, Iran
| | - Viorel Ion
- Department of Plant Sciences of the Faculty of Agriculture, University of Agricultural Sciences and Veterinary Medicine of Bucharest, Bucharest, Romani
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36
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Li C, Feng Y, Tian P, Yu X. Mathematical Estimation of Endogenous Proline as a Bioindicator to Regulate the Stress of Trivalent Chromium on Rice Plants Grown in Different Nitrogenous Conditions. Toxics 2023; 11:803. [PMID: 37888654 PMCID: PMC10611392 DOI: 10.3390/toxics11100803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 09/14/2023] [Accepted: 09/20/2023] [Indexed: 10/28/2023]
Abstract
The accumulation of proline impacts the defense mechanisms of plants against the harmful effects of adverse environmental conditions; however, its concentration in plants is associated with the metabolism of N. Therefore, the effects of exogenous organic [glutamate (Glu)/arginine (Arg)] and inorganic [nitrate (NO3-)/ammonium (NH4+)] N on the accumulation of proline (Pro) in rice plants under trivalent chromium [Cr(III)] stress were studied through using the mass balance matrix model (MBMM). Application of 'NH4+' showed the largest contribution to the Pro content in rice shoots under different concentrations of Cr(III), followed by 'NO3-', 'Arg', and 'Glu' applications. On the other hand, 'Arg' application displayed the largest contribution to the Pro content in roots under Cr(III) stress, followed by 'NH4+', 'Glu', and 'NO3-' applications. The combined application of 'NH4++Arg' showed the greatest contribution to the Pro content in both roots and shoots of Cr(III)-treated rice seedlings, while the application of 'NO3-+Glu' showed the least contribution to the Pro content in rice seedlings. The current study indicated that the endogenous level of Pro in rice seedlings is quite sensitive to Cr(III) stress under different N sources, and the mathematical modeling showed a reliable result while estimating the relationship between Pro content and N source application.
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Affiliation(s)
| | | | | | - Xiaozhang Yu
- College of Environmental Science & Engineering, Guilin University of Technology, Guilin 541004, China (Y.F.)
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Hussein MAA, Alqahtani MM, Alwutayd KM, Aloufi AS, Osama O, Azab ES, Abdelsattar M, Hassanin AA, Okasha SA. Exploring Salinity Tolerance Mechanisms in Diverse Wheat Genotypes Using Physiological, Anatomical, Agronomic and Gene Expression Analyses. Plants (Basel) 2023; 12:3330. [PMID: 37765494 PMCID: PMC10535590 DOI: 10.3390/plants12183330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 09/14/2023] [Accepted: 09/19/2023] [Indexed: 09/29/2023]
Abstract
Salinity is a widespread abiotic stress that devastatingly impacts wheat growth and restricts its productivity worldwide. The present study is aimed at elucidating biochemical, physiological, anatomical, gene expression analysis, and agronomic responses of three diverse wheat genotypes to different salinity levels. A salinity treatment of 5000 and 7000 ppm gradually reduced photosynthetic pigments, anatomical root and leaf measurements and agronomic traits of all evaluated wheat genotypes (Ismailia line, Misr 1, and Misr 3). In addition, increasing salinity levels substantially decreased all anatomical root and leaf measurements except sclerenchyma tissue upper and lower vascular bundle thickness compared with unstressed plants. However, proline content in stressed plants was stimulated by increasing salinity levels in all evaluated wheat genotypes. Moreover, Na+ ions content and antioxidant enzyme activities in stressed leaves increased the high level of salinity in all genotypes. The evaluated wheat genotypes demonstrated substantial variations in all studied characters. The Ismailia line exhibited the uppermost performance in photosynthetic pigments under both salinity levels. Additionally, the Ismailia line was superior in the activity of superoxide dismutase (SOD), catalase activity (CAT), peroxidase (POX), and polyphenol oxidase (PPO) enzymes followed by Misr 1. Moreover, the Ismailia line recorded the maximum anatomical root and leaf measurements under salinity stress, which enhanced its tolerance to salinity stress. The Ismailia line and Misr 3 presented high up-regulation of H+ATPase, NHX2 HAK, and HKT genes in the root and leaf under both salinity levels. The positive physiological, anatomical, and molecular responses of the Ismailia line under salinity stress were reflected on agronomic performance and exhibited superior values of all evaluated agronomic traits.
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Affiliation(s)
- Mohammed A. A. Hussein
- Department of Botany (Genetics), Faculty of Agriculture, Suez Canal University, Ismailia 41522, Egypt;
| | - Mesfer M. Alqahtani
- Department of Biological Sciences, Faculty of Science and Humanities, Shaqra University, Ad-Dawadimi 11911, Saudi Arabia;
| | - Khairiah M. Alwutayd
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia;
| | - Abeer S. Aloufi
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia;
| | - Omnia Osama
- Environmental Stress Lab (ESL), Agricultural Genetic Engineering Research Institute (AGERI), Agriculture Research Center (ARC), Giza 12619, Egypt;
| | - Enas S. Azab
- Agricultural Botany Department, Faculty of Agriculture, Suez Canal University, Ismailia 41522, Egypt;
| | - Mohamed Abdelsattar
- Agricultural Genetic Engineering Research Institute (AGERI), Agriculture Research Center (ARC), Giza 12619, Egypt;
| | - Abdallah A. Hassanin
- Genetics Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| | - Salah A. Okasha
- Department of Agronomy, Faculty of Agriculture, Suez Canal University, Ismailia 41522, Egypt
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Reis LC, Scalon SPQ, Foresti AC, Dresch DM, Santos CC, Lima VT. How does shading mitigates the water deficit in young Hymenaea courbaril L. plants? Front Plant Sci 2023; 14:1235234. [PMID: 37794932 PMCID: PMC10546060 DOI: 10.3389/fpls.2023.1235234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 08/21/2023] [Indexed: 10/06/2023]
Abstract
Information on tolerance to isolated or combined abiotic stresses is still scarce for tree species, although such stresses are normal in nature. The interactive effect of light availability and water stress has been reported for some native tree species in Brazil but has not been widely investigated. To test the hypothesis that shading can mitigate the stressful effect of water deficit on the photosynthetic and antioxidant metabolism and on the growth of young Hymenaea courbaril L. plants, we evaluated the following two water regimes: a) continuous irrigation - control (I) - 75% field capacity. and b) water deficit (S), characterized by irrigation suspension associated the two following periods of evaluation: P0 - when the photosynthetic rate of plants subjected to irrigation suspension reached values close to zero, with the seedlings being re-irrigated at that moment, and REC - when the photosynthetic rate of the re-irrigated plants of each shading levels reached values similar to those of plants in the control treatment, totaling four treatments: IP0, SP0, IREC, and SREC. The plants of these four treatments were cultivated under the four following shading levels: 0, 30, 50, and 70%, constituting 16 treatments. Intermediate shading of 30 and 50% mitigates the water deficit and accelerates the recovery of H. courbaril. Water deficit associated with cultivation without shading (0%) should not be adopted in the cultivation or transplantation of H. courbaril. After the resumption of irrigation in the REC, the other characteristics presented a recovery under all cultivation conditions. Key message: Intermediate shading of 30 and 50% mitigates the water deficit and accelerates the recovery of H. courbaril.
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Affiliation(s)
- Lucas C. Reis
- Plant Metabolism and Nutrition Laboratory, Faculty of Agricultural Sciences, Federal University of Grande Dourados, Dourados, State Mato Grosso do Sul, Brazil
| | - Silvana P. Q. Scalon
- Plant Metabolism and Nutrition Laboratory, Faculty of Agricultural Sciences, Federal University of Grande Dourados, Dourados, State Mato Grosso do Sul, Brazil
| | - Andressa C. Foresti
- Plant Metabolism and Nutrition Laboratory, Faculty of Agricultural Sciences, Federal University of Grande Dourados, Dourados, State Mato Grosso do Sul, Brazil
| | - Daiane M. Dresch
- Plant Metabolism and Nutrition Laboratory, Faculty of Agricultural Sciences, Federal University of Grande Dourados, Dourados, State Mato Grosso do Sul, Brazil
| | - Cleberton C. Santos
- Plant Metabolism and Nutrition Laboratory, Faculty of Agricultural Sciences, Federal University of Grande Dourados, Dourados, State Mato Grosso do Sul, Brazil
| | - Vânia T. Lima
- Departament of Botany, Biosciences Institute, São Paulo State University Júlio de Mesquita Filho, Rio Claro, São Paulo, Brazil
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Perea-Brenes A, Garcia JL, Cantos M, Cotrino J, Gonzalez-Elipe AR, Gomez-Ramirez A, Lopez-Santos C. Germination and First Stages of Growth in Drought, Salinity, and Cold Stress Conditions of Plasma-Treated Barley Seeds. ACS Agric Sci Technol 2023; 3:760-770. [PMID: 37766795 PMCID: PMC10520973 DOI: 10.1021/acsagscitech.3c00121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 08/25/2023] [Accepted: 08/25/2023] [Indexed: 09/29/2023]
Abstract
Numerous works have demonstrated that cold plasma treatments constitute an effective procedure to accelerate seed germination under nonstress conditions. Evidence also exists about a positive effect of plasmas for germination under environmental stress conditions. For barley seeds, this work studies the influence of cold plasma treatments on the germination rate and initial stages of plant growth in common stress environments, such as drought, salinity, and low-temperature conditions. As a general result, it has been found that the germination rate was higher for plasma-treated than for untreated seeds. Plasma also induced favorable changes in plant and radicle dimensions, which depended on the environment. The obtained results demonstrate that plasma affects the biochemical metabolic chains of seeds and plants, resulting in changes in the concentration of biochemical growing factors, a faster germination, and an initially more robust plant growth, even under stress conditions. These changes in phenotype are accompanied by differences in the concentration of biomarkers such as photosynthetic pigments (chlorophylls a and b and carotenoids), reactive oxygen species, and, particularly, the amino acid proline in the leaves of young plants, with changes that depend on environmental conditions and the application of a plasma treatment. This supports the idea that, rather than an increase in seed water imbibition capacity, there are clear beneficial effects on seedling of plasma treatments.
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Affiliation(s)
- Alvaro Perea-Brenes
- Nanotechnology
on Surfaces and Plasma Laboratory, Institute of Materials Science
of Seville, Consejo Superior de Investigaciones
Científicas-Universidad de Sevilla, Seville 41092, Spain
- Department
of Plant Biotechnology, Institute of Natural Resources and Agrobiology
of Seville, Consejo Superior de Investigaciones
Científicas, Seville 41012, Spain
| | - Jose Luis Garcia
- Department
of Plant Biotechnology, Institute of Natural Resources and Agrobiology
of Seville, Consejo Superior de Investigaciones
Científicas, Seville 41012, Spain
| | - Manuel Cantos
- Department
of Plant Biotechnology, Institute of Natural Resources and Agrobiology
of Seville, Consejo Superior de Investigaciones
Científicas, Seville 41012, Spain
| | - Jose Cotrino
- Nanotechnology
on Surfaces and Plasma Laboratory, Institute of Materials Science
of Seville, Consejo Superior de Investigaciones
Científicas-Universidad de Sevilla, Seville 41092, Spain
- Departamento
de Física Atómica, Molecular y Nuclear, Universidad de Sevilla, Seville 41012, Spain
| | - Agustín R. Gonzalez-Elipe
- Nanotechnology
on Surfaces and Plasma Laboratory, Institute of Materials Science
of Seville, Consejo Superior de Investigaciones
Científicas-Universidad de Sevilla, Seville 41092, Spain
| | - Ana Gomez-Ramirez
- Nanotechnology
on Surfaces and Plasma Laboratory, Institute of Materials Science
of Seville, Consejo Superior de Investigaciones
Científicas-Universidad de Sevilla, Seville 41092, Spain
- Departamento
de Física Atómica, Molecular y Nuclear, Universidad de Sevilla, Seville 41012, Spain
| | - Carmen Lopez-Santos
- Nanotechnology
on Surfaces and Plasma Laboratory, Institute of Materials Science
of Seville, Consejo Superior de Investigaciones
Científicas-Universidad de Sevilla, Seville 41092, Spain
- Departamento
de Física Aplicada I, Escuela Politécnica Superior, Universidad de Sevilla, Seville 41011, Spain
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40
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Tiika RJ, Duan H, Yang H, Cui G, Tian F, He Y, Ma Y, Li Y. Proline Metabolism Process and Antioxidant Potential of Lycium ruthenicum Murr. in Response to NaCl Treatments. Int J Mol Sci 2023; 24:13794. [PMID: 37762100 PMCID: PMC10530678 DOI: 10.3390/ijms241813794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/03/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
Salinity influences the level of antioxidants and proline content, which are both involved in the regulation of stress responses in plants. To examine the interplay between the antioxidant system and proline metabolism in plant stress acclimation, explants of Lycium ruthenicum were subjected to NaCl treatments, and the growth characteristics, antioxidant enzyme activities, proline accumulation, and metabolic enzyme content were analyzed. The results revealed that NaCl concentrations between 50 to 150 mM have a positive effect on the growth of L. ruthenicum explants. Increasing NaCl concentrations elevated the activities of superoxide dismutase (SOD) and catalase (CAT), while hydrogen peroxide (H2O2) content was inhibited, suggesting that the elevated antioxidants play a central protective role in superoxide anion (O2•-) and H2O2 scavenging processes in response to NaCl treatments. Also, high proline levels also protect antioxidant enzyme machinery, thus protecting the plants from oxidative damage and enhancing osmotic adjustment. Increasing levels of pyrroline-5-carboxylate synthetase (P5CS), pyrroline-5-carboxylate reductase (P5CR), and ornithine-δ-aminotransferase (δ-OAT) were observed, resulting in elevated level of proline. In addition, the expression levels of LrP5CS1, -2, -3, LrOAT-1, and -2 were promoted in NaCl treatments. According to the combined analysis of metabolic enzyme activities and their relative expression, it is confirmed that the glutamate (Glu) pathway is activated in L. ruthenicum faced with different levels of NaCl concentrations. However, Glu supplied by δ-OAT is fed back into the main pathway for proline metabolism.
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Affiliation(s)
- Richard John Tiika
- College of Forestry, Gansu Agricultural University, Lanzhou 730070, China
- Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Huirong Duan
- Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Hongshan Yang
- Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Guangxin Cui
- Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Fuping Tian
- Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Yongtao He
- Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Yanjun Ma
- College of Forestry, Gansu Agricultural University, Lanzhou 730070, China
| | - Yi Li
- College of Forestry, Gansu Agricultural University, Lanzhou 730070, China
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Figueiredo VMDA, Scalon SDPQ, Santos CC, Linné JA, Silverio JM, Cerqueira WM, de Almeida JLDCS. Do Silicon and Salicylic Acid Attenuate Water Deficit Damage in Talisia esculenta Radlk Seedlings? Plants (Basel) 2023; 12:3183. [PMID: 37765347 PMCID: PMC10537109 DOI: 10.3390/plants12183183] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 08/09/2023] [Accepted: 08/10/2023] [Indexed: 09/29/2023]
Abstract
Water deficit is one of the factors that most influence plant growth and yield. Thus, this study aimed to evaluate the effect of silicon and salicylic acid application and water deficit on the growth and photosynthetic and osmoregulatory metabolism of Talisia esculenta Radlk. seedlings and their recovery potential after the resumption of irrigation. Six treatments were performed: irrigation, irrigation suspension, irrigation suspension + silicon at 0.5 g L-1, irrigation suspension + silicon at 1.0 g L-1, irrigation suspension + salicylic acid at 50 mg L-1, and irrigation suspension + salicylic acid at 100 mg L-1. The evaluations were carried out at the beginning of the experiment, at 10 and 15 days after irrigation suspension, when the seedlings showed a photosynthetic rate close to zero, and at recovery. The plants were subjected to water restriction for up to 15 days, then re-irrigated until the recovery point, which was monitored based on the photosynthetic rate. Silicon application attenuated the harmful effects of water deficit on gas exchange and initial fluorescence, promoted proline accumulation in the leaf and root, and provided higher seedling quality. Salicylic acid application contributed to the maintenance of the relative water content of leaves during the water deficit period. Silicon and salicylic acid applications can attenuate the harmful effects of water stress, with silicon being the most effective agent in maintaining its growth and metabolism.
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Affiliation(s)
- Vanda Maria de Aquino Figueiredo
- Faculty of Agricultural Science, Federal University of Grande Dourados, Highway Dourados, Itahum/km 1, Dourados 79804970, MS, Brazil
| | - Silvana de Paula Quintão Scalon
- Faculty of Agricultural Science, Federal University of Grande Dourados, Highway Dourados, Itahum/km 1, Dourados 79804970, MS, Brazil
| | - Cleberton Correia Santos
- Faculty of Agricultural Science, Federal University of Grande Dourados, Highway Dourados, Itahum/km 1, Dourados 79804970, MS, Brazil
| | - Jéssica Aline Linné
- Faculty of Agricultural Science, Federal University of Grande Dourados, Highway Dourados, Itahum/km 1, Dourados 79804970, MS, Brazil
| | - Juliana Milene Silverio
- Faculty of Agricultural Science, Federal University of Grande Dourados, Highway Dourados, Itahum/km 1, Dourados 79804970, MS, Brazil
| | - Wállas Matos Cerqueira
- Faculty of Agricultural Science, Federal University of Grande Dourados, Highway Dourados, Itahum/km 1, Dourados 79804970, MS, Brazil
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Ma Z, Shang P, Liu D, Nie Y, Liu Y, Guo X, Wei B, Bai L, Qiao X. Preparation and chromatographic performance of chiral peptide-based stationary phases for enantiomeric separation. Chirality 2023; 35:636-644. [PMID: 36951148 DOI: 10.1002/chir.23564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 03/07/2023] [Accepted: 03/10/2023] [Indexed: 03/24/2023]
Abstract
This study presents the development of three new chiral stationary phases. They are based on silica modified with peptides containing phenylalanine and proline. Successful analyses and characterizations were conducted using Fourier transform infrared spectra, elemental analysis, and thermogravimetric analysis. After this, the enantioselective performance of the three chiral peptide-based columns was evaluated. The evaluation used 11 racemic compounds under normal-phase high performance liquid chromatography mode. Optimized enantiomeric separation conditions were established. Under these conditions, the enantiomers of flurbiprofen and naproxen were successfully separated on CSP-1 column: the separation factor of these was 1.27 and 1.21, respectively. In addition, the reproducibility of the CSP-1 column was also investigated. The results of the investigation illustrated that the stationary phases have good reproducibility (RSD = 0.73%, n = 5).
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Affiliation(s)
- Zhengyue Ma
- College of Pharmaceutical Sciences, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Hebei University, Baoding, China
| | - Panpan Shang
- College of Pharmaceutical Sciences, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Hebei University, Baoding, China
| | - Delu Liu
- College of Pharmaceutical Sciences, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Hebei University, Baoding, China
| | - Yangyang Nie
- College of Pharmaceutical Sciences, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Hebei University, Baoding, China
| | - Yanli Liu
- College of Pharmaceutical Sciences, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Hebei University, Baoding, China
| | - Xinyuan Guo
- College of Pharmaceutical Sciences, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Hebei University, Baoding, China
| | - Benben Wei
- College of Pharmaceutical Sciences, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Hebei University, Baoding, China
| | - Ligai Bai
- College of Pharmaceutical Sciences, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Hebei University, Baoding, China
| | - Xiaoqiang Qiao
- College of Pharmaceutical Sciences, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Hebei University, Baoding, China
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43
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Hazra MK, Gilron Y, Levy Y. Not Only Expansion: Proline Content and Density Also Induce Disordered Protein Conformation Compaction. J Mol Biol 2023; 435:168196. [PMID: 37442414 DOI: 10.1016/j.jmb.2023.168196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 06/28/2023] [Accepted: 07/05/2023] [Indexed: 07/15/2023]
Abstract
Intrinsically disordered proteins (IDPs) adopt a wide array of different conformations that can be constrained by the presence of proline residues, which are frequently found in IDPs. To assess the effects of proline, we designed a series of peptides that differ with respect to the number of prolines in the sequence and their organization. Using high-resolution atomistic molecular dynamics simulations, we found that accounting for whether the proline residues are clustered or isolated contributed significantly to explaining deviations in the experimentally-determined gyration radii of IDPs from the values expected based on the Flory scaling-law. By contrast, total proline content makes smaller contribution to explaining the effect of prolines on IDP conformation. Proline residues exhibit opposing effects depending on their organizational pattern in the IDP sequence. Clustered prolines (i.e., prolines with ≤2 intervening non-proline residues) result in expanded peptide conformations whereas isolated prolines (i.e., prolines with >2 intervening non-proline residues) impose compacted conformations. Clustered prolines were estimated to induce an expansion of ∼20% in IDP dimension (via formation of PPII structural elements) whereas isolated prolines were estimated to induce a compaction of ∼10% in IDP dimension (via the formation of backbone turns). This dual role of prolines provides a mechanism for conformational switching that does not rely on the kinetically much slower isomerization of cis proline to the trans form. Bioinformatic analysis demonstrates high populations of both isolated and clustered prolines and implementing them in coarse-grained molecular dynamics models illustrates that they improve the characterization of the conformational ensembles of IDPs.
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Affiliation(s)
- Milan Kumar Hazra
- Department of Chemical and Structural Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Yishai Gilron
- Department of Chemical and Structural Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Yaakov Levy
- Department of Chemical and Structural Biology, Weizmann Institute of Science, Rehovot, Israel.
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Chatara T, Musvosvi C, Houdegbe A, Tesfay SZ, Sibiya J. Morpho-physiological and biochemical characterization of African spider plant ( Gynandropsis gynandra (L.) Briq.) genotypes under drought and non-drought conditions. Front Plant Sci 2023; 14:1197462. [PMID: 37662144 PMCID: PMC10469808 DOI: 10.3389/fpls.2023.1197462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 07/13/2023] [Indexed: 09/05/2023]
Abstract
The African spider plant (Gynandropsis gynandra (L.) Briq.) is a nutrient-dense, climate-resilient indigenous vegetable with a C4 carbon fixation pathway. Understanding African spider plant drought tolerance mechanisms is essential for improving its performance in water-stressed areas. The objective of this study was to evaluate the stress tolerance potential of African spider plant accessions based on thirteen morphological, physiological, and biochemical traits under three different water treatment regimes. Eighteen accessions were evaluated over two growing seasons in the greenhouse using a split-split plot design with four replications and three water treatment-regimes namely optimum (100% field capacity), intermediate drought (50% field capacity) and, severe drought (30% field capacity). The results revealed that water regime had a significant effect (P< 0.01) on the accessions for the traits studied. A significant reduction across most of the studied traits was observed under drought conditions. However, proline content in all the accessions significantly rose under drought conditions. The principal component analysis revealed a considerable difference in the performance of the 18 African spider plant accessions under optimum and drought stress conditions. Several morphological and physiological parameters, including days to 50% flowering (r = 0.80), leaf length (r = 0.72), net photosynthesis (r = 0.76) and number of leaves per plant (r = 0.79), were positively associated with leaf yield under drought conditions. Cluster analysis categorized the 18 accessions and 13 measured parameters into 4 clusters, with cluster-1 exhibiting greater drought tolerance for most of the studied traits, and cluster-4 having the most drought-sensitive accessions. Among the accessions tested, accessions L3 and L5 demonstrated excellent drought tolerance and yield performance under both conditions. As a result, these accessions were selected as candidates for African spider plant drought tolerance breeding programs. These findings will serve as the foundation for future studies and will aid in improving food and nutrition security in the face of drought.
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Affiliation(s)
- Tinashe Chatara
- School of Agriculture, Earth and Environmental Sciences, University of KwaZulu-Natal, Pietermaritzburg, South Africa
| | - Cousin Musvosvi
- School of Agricultural Sciences and Technology, Chinhoyi University of Technology, Chinhoyi, Zimbabwe
| | - Aristide Carlos Houdegbe
- School of Agriculture, Earth and Environmental Sciences, University of KwaZulu-Natal, Pietermaritzburg, South Africa
- Genetics, Biotechnology and Seed Science Unit (GBioS), Laboratory of Crop Production, Physiology and Plant Breeding, Faculty of Agronomic Sciences, University of Abomey-Calavi, Abomey-Calavi, Benin
| | - Samson Zeray Tesfay
- School of Agriculture, Earth and Environmental Sciences, University of KwaZulu-Natal, Pietermaritzburg, South Africa
| | - Julia Sibiya
- School of Agriculture, Earth and Environmental Sciences, University of KwaZulu-Natal, Pietermaritzburg, South Africa
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45
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Wang Y, Wu W, Zhang L, Jiang H, Mei L. Variations in amino acids caused by drought stress mediate the predisposition of Carya cathayensis to Botryosphaeria canker disease. J Exp Bot 2023; 74:4628-4641. [PMID: 37129574 DOI: 10.1093/jxb/erad161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Accepted: 04/28/2023] [Indexed: 05/03/2023]
Abstract
Abiotic stresses can affect the outcome of plant-pathogen interactions, mostly by predisposing the host plant to infection; however, the crosstalk between pathogens and plants related to such predisposition remains unclear. Here, we investigated the predisposition of Carya cathayensis to infection by the fungal pathogen Botryosphaeria dothidea (Bd) caused by drought in the host plant. High levels of drought stress resulted in a significant increase in plant susceptibility to Bd. Drought significantly induced the accumulation of H2O2 and the free amino acids Pro, Leu, and Ile, and in the phloem tissues of plants, and decreased the content of non-structural carbohydrates. In vitro assays showed that Bd was sensitive to H2O2; however, Pro played a protective role against exogenous H2O2. Leu, Ile, and Pro induced asexual reproduction of Bd. Our results provide the first analysis of how drought predisposes C. cathayensis to Botrysphaeria canker via amino acid accumulation in the host plant, and we propose a model that integrates the plant-pathogen interactions involved.
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Affiliation(s)
- Yongjun Wang
- College of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Wenbin Wu
- College of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Liqin Zhang
- Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, Huzhou University, Huzhou, 313000, Zhejiang, China
| | - Hong Jiang
- College of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Li Mei
- College of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
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46
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Benito P, Bellón J, Porcel R, Yenush L, Mulet JM. The Biostimulant, Potassium Humate Ameliorates Abiotic Stress in Arabidopsis thaliana by Increasing Starch Availability. Int J Mol Sci 2023; 24:12140. [PMID: 37569516 PMCID: PMC10418871 DOI: 10.3390/ijms241512140] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 07/24/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
Potassium humate is a widely used biostimulant known for its ability to enhance growth and improve tolerance to abiotic stress. However, the molecular mechanisms explaining its effects remain poorly understood. In this study, we investigated the mechanism of action of potassium humate using the model plant Arabidopsis thaliana. We demonstrated that a formulation of potassium humate effectively increased the fresh weight accumulation of Arabidopsis plants under normal conditions, salt stress (sodium or lithium chloride), and particularly under osmotic stress (mannitol). Interestingly, plants treated with potassium humate exhibited a reduced antioxidant response and lower proline accumulation, while maintaining photosynthetic activity under stress conditions. The observed sodium and osmotic tolerance induced by humate was not accompanied by increased potassium accumulation. Additionally, metabolomic analysis revealed that potassium humate increased maltose levels under control conditions but decreased levels of fructose. However, under stress, both maltose and glucose levels decreased, suggesting changes in starch utilization and an increase in glycolysis. Starch concentration measurements in leaves showed that plants treated with potassium humate accumulated less starch under control conditions, while under stress, they accumulated starch to levels similar to or higher than control plants. Taken together, our findings suggest that the molecular mechanism underlying the abiotic stress tolerance conferred by potassium humate involves its ability to alter starch content under normal growth conditions and under salt or osmotic stress.
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Affiliation(s)
- Patricia Benito
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, 46022 Valencia, Spain; (P.B.); (R.P.); (L.Y.)
- Caldic Ibérica, S. L. U. Llobateras 23-25, pol.ind. Santiga, Barberà del Vallés, 08210 Barcelona, Spain;
| | - Javier Bellón
- Caldic Ibérica, S. L. U. Llobateras 23-25, pol.ind. Santiga, Barberà del Vallés, 08210 Barcelona, Spain;
| | - Rosa Porcel
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, 46022 Valencia, Spain; (P.B.); (R.P.); (L.Y.)
| | - Lynne Yenush
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, 46022 Valencia, Spain; (P.B.); (R.P.); (L.Y.)
| | - José M. Mulet
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, 46022 Valencia, Spain; (P.B.); (R.P.); (L.Y.)
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Lubyanova AR, Allagulova CR, Lastochkina OV. The Effects of Seed Pretreatment with Endophytic Bacteria Bacillus subtilis on the Water Balance of Spring and Winter Wheat Seedlings under Short-Time Water Deficit. Plants (Basel) 2023; 12:2684. [PMID: 37514298 PMCID: PMC10383602 DOI: 10.3390/plants12142684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 06/23/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023]
Abstract
We investigated the effect of pre-sowing seed treatment with endophytic Bacillus subtilis 10-4 (B. subtilis) on spring and winter wheat (Triticum aestivum L.; cultivars Ekada-70 (Ek) and Scepter (Sc), respectively) growth and tolerance under 1-24 h of drought stress, modulated by 12% polyethylene glycol 6000 (PEG). The results showed that drought decreased transpiration intensity (TI), root relative water content (RWC), osmotic potential (Ψπ) of cell sap, and induced proline accumulation and electrolyte leakage (EL) in both wheat cultivars. It was revealed that Sc was more responsive to PEG and B. subtilis treatments than Ek. Under drought, Ek did not significantly change root length, shoot height, or dry biomass. The pretreatment of wheat plants with B. subtilis performed significantly better under drought conditions through the enhanced TI, RWC, and Ψπ of the cell sap in comparison with the plants treated with 12% PEG alone. B. subtilis also reduced stress-caused EL, especially in the Sc cultivar. Under water deficit wheat seedlings, pretreated with B. subtilis, have a higher proline accumulation in comparison to untreated stressed plants. Taken together, our results demonstrate the crucial role of endophytic B. subtilis in ameliorating the adverse effects of water stress on the water balance of both winter and spring wheat cultivars.
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Affiliation(s)
- Alsu R Lubyanova
- Institute of Biochemistry and Genetics-Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences, Prospect Oktyabrya 71, 450054 Ufa, Russia
| | - Chulpan R Allagulova
- Institute of Biochemistry and Genetics-Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences, Prospect Oktyabrya 71, 450054 Ufa, Russia
| | - Oksana V Lastochkina
- Institute of Biochemistry and Genetics-Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences, Prospect Oktyabrya 71, 450054 Ufa, Russia
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48
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Chen M, Xu J. CO 2 Capture Mechanism by Deep Eutectic Solvents Formed by Choline Prolinate and Ethylene Glycol. Molecules 2023; 28:5461. [PMID: 37513333 PMCID: PMC10385772 DOI: 10.3390/molecules28145461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 07/12/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
The choline prolinate ([Ch][Pro]) as a hydrogen bond acceptor and ethylene glycol (EG) as a hydrogen bond donor are both used to synthesize the deep eutectic solvents (DESs) [Ch][Pro]-EG to capture CO2. The CO2 capacity of [Ch][Pro]-EG is determined, and the nuclear magnetic resonance (NMR) and infrared (IR) spectrum are used to investigate the CO2 capture mechanism. The results indicate that CO2 reacts with both the amino group of [Pro]- anion and the hydroxyl group of EG, and the mechanism found in this work is different from that reported in the literature for the [Ch][Pro]-EG DESs.
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Affiliation(s)
- Mingzhe Chen
- School of Science, China University of Geosciences, Beijing 100083, China
| | - Jinming Xu
- School of Science, China University of Geosciences, Beijing 100083, China
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Jankovska-Bortkevič E, Jurkonienė S, Gavelienė V, Šveikauskas V, Mockevičiūtė R, Vaseva I, Todorova D, Žižytė-Eidetienė M, Šneideris D, Prakas P. Dynamics of Polyamines, Proline, and Ethylene Metabolism under Increasing Cold in Winter Oilseed Rape. Int J Mol Sci 2023; 24:11402. [PMID: 37511158 PMCID: PMC10379363 DOI: 10.3390/ijms241411402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/03/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
Cold stress is among the most important environmental factors reducing the yield of crops. The present study aimed to investigate the impact of increasing cold stress conditions on winter oilseed rape polyamines, proline, and ethylene metabolism in acclimated and non-acclimated winter oilseed rape. This study was carried out under controlled conditions in the laboratory. The winter oilseed rape hybrid 'Visby' was used in the experiment. Acclimated and non-acclimated plants were subjected to a two-day-long increasing cold (from -1 °C to -3 °C) treatment. HPTLC, RT-qPCR, spectral analysis, and gas chromatography methods were used to analyse the levels of polyamines, gene expression, proline, and ethylene, respectively. This study showed a decrease in putrescine, spermidine, and spermine content during cold acclimation and a decrease in putrescine and spermidine levels at sub-zero temperatures. There were intensive changes in ADC2 gene expression, proline, and ethylene levels in non-acclimated plants: a substantial increase after exposure to -1 °C temperature and a sharp decrease after exposure to -3 °C temperature. The changes in these parameters were lower or absent in acclimated plants. The phenomena observed in this study add new insights to the knowledge about the plant stress response and suggest questions to be answered in the future.
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Affiliation(s)
| | - Sigita Jurkonienė
- Nature Research Centre, Akademijos Str. 2, LT-08412 Vilnius, Lithuania
| | | | | | - Rima Mockevičiūtė
- Nature Research Centre, Akademijos Str. 2, LT-08412 Vilnius, Lithuania
| | - Irina Vaseva
- Institute of Plant Physiology and Genetics, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. Bl. 21, BG-1113 Sofia, Bulgaria
| | - Dessislava Todorova
- Institute of Plant Physiology and Genetics, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. Bl. 21, BG-1113 Sofia, Bulgaria
| | | | - Donatas Šneideris
- Nature Research Centre, Akademijos Str. 2, LT-08412 Vilnius, Lithuania
| | - Petras Prakas
- Nature Research Centre, Akademijos Str. 2, LT-08412 Vilnius, Lithuania
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Tasoglu C, Arslanoglu A, Yalcin T. Gas Phase Fragmentation Behavior of Proline in Macrocyclic b7 Ions. J Am Soc Mass Spectrom 2023. [PMID: 37402129 PMCID: PMC10401712 DOI: 10.1021/jasms.3c00049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Abstract
The fragmentation characteristics of b7 ions produced from proline-containing heptapeptides have been studied in detail. The study has utilized the following C-terminally amidated model peptides: PA6, APA5, A2PA4, A3PA3, A4PA2, A5PA, A6P, PYAGFLV, PAGFLVY, PGFLVYA, PFLVYAG, PLVYAGF, PVYAGFL, YPAGFLV, YAPGFLV, YAGPFLV, YAGFPLV, YAGFLPV, YAGFLVP, PYAFLVG, PVLFYAG, A2PXA3, and A2XPA3 (where X = C, D, F, G, L, V, and Y, respectively). The results have shown that b7 ions undergo head-to-tail cyclization and form a macrocyclic structure. Under the collision-induced dissociation (CID) condition, it generates nondirect sequence ions regardless of the position of the proline and the neighboring amino acid residues. This study highlights the unusual and unique fragmentation behavior of proline-containing heptapeptides. Following the head-to-tail cyclization, the ring opens up and places the proline residue in the N-terminal position while forming a regular oxazolone form of b2 ions for all peptide series. Then, the fragmentation reaction pathway is followed by the elimination of proline with its C-terminal neighbor residue as an oxazolone (e.g., PXoxa) for all proline-containing peptide series.
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Affiliation(s)
- Cagdas Tasoglu
- National Mass Spectrometry Application and Research Center, Integrated Research Centers, Izmir Institute of Technology, Urla-Izmir 35430, Turkey
| | - Alper Arslanoglu
- Department of Molecular Biology and Genetics, Izmir Institute of Technology, Urla-Izmir 35430, Turkey
| | - Talat Yalcin
- Department of Chemistry, Faculty of Science, Izmir Institute of Technology, Urla-Izmir 35430, Turkey
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