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Mukherjee S, Roy S, Corpas FJ. Aquaporins: a vital nexus in H 2O 2-gasotransmitter signaling. TRENDS IN PLANT SCIENCE 2024; 29:681-693. [PMID: 38199830 DOI: 10.1016/j.tplants.2023.11.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 11/20/2023] [Accepted: 11/29/2023] [Indexed: 01/12/2024]
Abstract
Land plants have evolved with a complex mechanism of water uptake facilitated by the activity of aquaporins under normal and challenging environments. However, we lack a clear understanding of its interactions with reactive oxygen species, particularly hydrogen peroxide (H2O2) and the gasotransmitters nitric oxide (NO) and hydrogen sulfide (H2S), under oxidative stress. Here, we assess the crosstalk of aquaporin function, H2O2 homeostasis, and NO-H2S signaling in plants and provide a computational prediction of cysteine-based oxidative post-translational modifications (oxiPTMs) in plant aquaporins. We propose that aquaporin activity could be regulated by three major oxiPTMs, S-nitrosation, S-sulfenylation, and persulfidation, mediated by NO, H2O2, and H2S, respectively. Therefore, aquaporins might be key players in the gasotransmitter-mediated long-distance oxidative stress signals in plant cells.
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Affiliation(s)
- Soumya Mukherjee
- Department of Botany, Jangipur College, University of Kalyani, West Bengal, India
| | - Suchismita Roy
- Department of Cell and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Francisco J Corpas
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Stress, Development and Signalling in Plants, Estación Experimental del Zaidín (Spanish National Research Council), Granada, Spain.
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Miao M, Shi X, Zheng X, Wu B, Miao Y. Characterization of SIPs-type aquaporins and their roles in response to environmental cues in rice (Oryza sativa L.). BMC PLANT BIOLOGY 2024; 24:305. [PMID: 38644479 PMCID: PMC11034084 DOI: 10.1186/s12870-024-05002-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Accepted: 04/09/2024] [Indexed: 04/23/2024]
Abstract
BACKGROUND Aquaporins (AQPs) facilitate water diffusion across biological membranes and are involved in all phases of growth and development. Small and basic intrinsic proteins (SIPs) belong to the fourth subfamily of the plant AQPs. Although SIPs are widely present in higher plants, reports on SIPs are limited. Rice is one of the major food crops in the world, and water use is an important factor affecting rice growth and development; therefore, this study aimed to provide information relevant to the function and environmental response of the rice SIP gene family. RESULTS The rice (Oryza sativa L. japonica) genome encodes two SIP-like genes, OsSIP1 and OsSIP2, whose products are predominantly located in the endoplasmic reticulum (ER) membrane but transient localization to the plasma membrane is not excluded. Heterologous expression in a yeast aquaglyceroporin-mutant fps1Δ showed that both OsSIP1 and OsSIP2 made the cell more sensitive to KCl, sorbitol and H2O2, indicating facilitated permeation of water and hydrogen peroxide. In addition, the yeast cells expressing OsSIP2 were unable to efflux the toxic methylamine taken up by the endogenous MEP permeases, but OsSIP1 showed subtle permeability to methylamine, suggesting that OsSIP1 may have a wider conducting pore than OsSIP2. Expression profiling in different rice tissues or organs revealed that OsSIP1 was expressed in all tissues tested, whereas OsSIP2 was preferentially expressed in anthers and weakly expressed in other tissues. Consistent with this, histochemical staining of tissues expressing the promoter-β-glucuronidase fusion genes revealed their tissue-specific expression profile. In rice seedlings, both OsSIPs were upregulated to varied levels under different stress conditions, including osmotic shock, high salinity, unfavorable temperature, redox challenge and pathogen attack, as well as by hormonal treatments such as GA, ABA, MeJA, SA. However, a reduced expression of both OsSIPs was observed under dehydration treatment. CONCLUSIONS Our results suggest that SIP-like aquaporins are not restricted to the ER membrane and are likely to be involved in unique membrane functions in substrate transport, growth and development, and environmental response.
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Affiliation(s)
- Miao Miao
- Fujian Provincial Key Laboratory of Plant Functional Biology, College of Life Sciences, Fujian Agriculture & Forestry University, Fuzhou, China
| | - Ximiao Shi
- Fujian Provincial Key Laboratory of Plant Functional Biology, College of Life Sciences, Fujian Agriculture & Forestry University, Fuzhou, China
| | - Xiangzi Zheng
- Fujian Provincial Key Laboratory of Plant Functional Biology, College of Life Sciences, Fujian Agriculture & Forestry University, Fuzhou, China
| | - Binghua Wu
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| | - Ying Miao
- Fujian Provincial Key Laboratory of Plant Functional Biology, College of Life Sciences, Fujian Agriculture & Forestry University, Fuzhou, China.
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Venkataraghavan A, Schwerdt JG, Tyerman SD, Hrmova M. Barley Nodulin 26-like intrinsic protein permeates water, metalloids, saccharides, and ion pairs due to structural plasticity and diversification. J Biol Chem 2023; 299:105410. [PMID: 37913906 PMCID: PMC10716587 DOI: 10.1016/j.jbc.2023.105410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 09/22/2023] [Accepted: 10/23/2023] [Indexed: 11/03/2023] Open
Abstract
Aquaporins can facilitate the passive movement of water, small polar molecules, and some ions. Here, we examined solute selectivity for the barley Nodulin 26-like Intrinsic Protein (HvNIP2;1) embedded in liposomes and examined through stopped-flow light scattering spectrophotometry and Xenopus laevis oocyte swelling assays. We found that HvNIP2;1 permeates water, boric and germanic acids, sucrose, and lactose but not d-glucose or d-fructose. Other saccharides, such as neutral (d-mannose, d-galactose, d-xylose, d-mannoheptaose) and charged (N-acetyl d-glucosamine, d-glucosamine, d-glucuronic acid) aldoses, disaccharides (cellobiose, gentiobiose, trehalose), trisaccharide raffinose, and urea, glycerol, and acyclic polyols, were permeated to a much lower extent. We observed apparent permeation of hydrated KCl and MgSO4 ions, while CH3COONa and NaNO3 permeated at significantly lower rates. Our experiments with boric acid and sucrose revealed no apparent interaction between solutes when permeated together, and AgNO3 or H[AuCl4] blocked the permeation of all solutes. Docking of sucrose in HvNIP2;1 and spinach water-selective SoPIP2;1 aquaporins revealed the structural basis for sucrose permeation in HvNIP2;1 but not in SoPIP2;1, and defined key residues interacting with this permeant. In a biological context, sucrose transport could constitute a novel element of plant saccharide-transporting machinery. Phylogenomic analyses of 164 Viridiplantae and 2993 Archaean, bacterial, fungal, and Metazoan aquaporins rationalized solute poly-selectivity in NIP3 sub-clade entries and suggested that they diversified from other sub-clades to acquire a unique specificity of saccharide transporters. Solute specificity definition in NIP aquaporins could inspire developing plants for food production.
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Affiliation(s)
- Akshayaa Venkataraghavan
- School of Agriculture, Food and Wine, and Waite Research Institute, Waite Research Precinct, University of Adelaide, Glen Osmond, South Australia, Australia
| | - Julian G Schwerdt
- School of Agriculture, Food and Wine, and Waite Research Institute, Waite Research Precinct, University of Adelaide, Glen Osmond, South Australia, Australia
| | - Stephen D Tyerman
- School of Agriculture, Food and Wine, and Waite Research Institute, Waite Research Precinct, University of Adelaide, Glen Osmond, South Australia, Australia
| | - Maria Hrmova
- School of Agriculture, Food and Wine, and Waite Research Institute, Waite Research Precinct, University of Adelaide, Glen Osmond, South Australia, Australia.
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Thakral V, Sharma Y, Mandlik R, Kumawat S, Patil G, Sonah H, Isenring P, Bélanger R, Sharma TR, Deshmukh R. Identification of VrNIP2-1 aquaporin with novel selective filter regulating the transport of beneficial as well as hazardous metalloids in mungbean (Vigna radiata L.). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 203:108057. [PMID: 37793194 DOI: 10.1016/j.plaphy.2023.108057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 09/06/2023] [Accepted: 09/24/2023] [Indexed: 10/06/2023]
Abstract
Nodulin 26-like intrinsic protein (NIP) subfamily of aquaporins (AQPs) in plants, is known to be involved in the uptake of metalloids including boron, germanium (Ge), arsenic (As), and silicon (Si). In the present study, a thorough evaluation of 55 AQPs found in the mungbean genome, including phylogenetic distribution, sequence homology, expression profiling, and structural characterization, contributed to the identification of VrNIP2-1 as a metalloid transporter. The pore-morphology of VrNIP2-1 was studied using molecular dynamics simulation. Interestingly, VrNIP2-1 was found to harbor an aromatic/arginine (ar/R) selectivity filter formed with ASGR amino acids instead of GSGR systematically reported in metalloid transporters (NIP2s) in higher plants. Evaluation of diverse cultivars showed a high level of Si accumulation in leaves indicating functional Si transport in mungbean. In addition, heterologous expression of VrNIP2-1 in yeast revealed As(III) and GeO2 transport activity. Similarly, VrNIP2-1 expression in Xenopus oocytes confirmed its Si transport ability. The metalloid transport activity with unique structural features will be helpful to better understand the solute specificity of NIP2s in mungbean and related pulses. The information provided here will also serve as a basis to improve Si uptake while restricting hazardous metalloids like As in plants.
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Affiliation(s)
- Vandana Thakral
- Department of Biotechnology, Panjab University, Chandigarh, India; Department of Biotechnology, Central University of Haryana, Jant-Pali, Mahendragarh, Haryana, India; National Agri-Food Biotechnology Institute (NABI), Mohali, Punjab, India
| | - Yogesh Sharma
- National Agri-Food Biotechnology Institute (NABI), Mohali, Punjab, India
| | - Rushil Mandlik
- Department of Biotechnology, Panjab University, Chandigarh, India; Department of Biotechnology, Central University of Haryana, Jant-Pali, Mahendragarh, Haryana, India
| | - Surbhi Kumawat
- Department of Biotechnology, Panjab University, Chandigarh, India
| | - Gunvant Patil
- Department of Plant and Soil Sciences, Institute of Genomics for Crop Abiotic Stress Tolerance, Texas Tech University, Lubbock, TX, USA
| | - Humira Sonah
- Department of Biotechnology, Central University of Haryana, Jant-Pali, Mahendragarh, Haryana, India
| | - Paul Isenring
- Nephrology Group, Department of Medicine, Faculty of Medicine, L'Hôtel-Dieu de Québec Institution, Université Laval, Québec, QC, Canada
| | - Richard Bélanger
- Département de Phytologie, Faculté des Sciences de l'Agriculture et de l'Alimentation (FSAA), Université Laval, Québec, QC, Canada
| | - Tilak Raj Sharma
- Division of Crop Science, Indian Council of Agriculture Research (ICAR), Krishi Bhavan, New Delhi, India
| | - Rupesh Deshmukh
- Department of Biotechnology, Central University of Haryana, Jant-Pali, Mahendragarh, Haryana, India.
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Salvatierra A, Mateluna P, Toro G, Solís S, Pimentel P. Genome-Wide Identification and Gene Expression Analysis of Sweet Cherry Aquaporins ( Prunus avium L.) under Abiotic Stresses. Genes (Basel) 2023; 14:genes14040940. [PMID: 37107698 PMCID: PMC10138167 DOI: 10.3390/genes14040940] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 04/13/2023] [Accepted: 04/14/2023] [Indexed: 04/29/2023] Open
Abstract
Aquaporins (AQPs) are integral transmembrane proteins well known as channels involved in the mobilization of water, small uncharged molecules and gases. In this work, the main objective was to carry out a comprehensive study of AQP encoding genes in Prunus avium (cv. Mazzard F12/1) on a genome-wide scale and describe their transcriptional behaviors in organs and in response to different abiotic stresses. A total of 28 non-redundant AQP genes were identified in Prunus spp. Genomes, which were phylogenetically grouped into five subfamilies (seven PIPs, eight NIPs, eight TIPs, three SIPs and two XIPs). Bioinformatic analyses revealed a high synteny and remarkable conservation of structural features among orthologs of different Prunus genomes. Several cis-acting regulatory elements (CREs) related to stress regulation were detected (ARE, WRE3, WUN, STRE, LTR, MBS, DRE, AT-rich and TC-rich). The above could be accounting for the expression variations associated with plant organs and, especially, each abiotic stress analyzed. Gene expressions of different PruavAQPs were shown to be preferentially associated with different stresses. PruavXIP2;1 and PruavXIP1;1 were up-regulated in roots at 6 h and 72 h of hypoxia, and in PruavXIP2;1 a slight induction of expression was also detected in leaves. Drought treatment strongly down-regulated PruavTIP4;1 but only in roots. Salt stress exhibited little or no variation in roots, except for PruavNIP4;1 and PruavNIP7;1, which showed remarkable gene repression and induction, respectively. Interestingly, PruavNIP4;1, the AQP most expressed in cherry roots subjected to cold temperatures, also showed this pattern in roots under high salinity. Similarly, PruavNIP4;2 consistently was up-regulated at 72 h of heat and drought treatments. From our evidence is possible to propose candidate genes for the development of molecular markers for selection processes in breeding programs for rootstocks and/or varieties of cherry.
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Affiliation(s)
- Ariel Salvatierra
- Centro de Estudios Avanzados en Fruticultura (CEAF), Camino Las Parcelas 882, km 105 Ruta 5 Sur, Sector Los Choapinos, Rengo 2940000, Chile
| | - Patricio Mateluna
- Centro de Estudios Avanzados en Fruticultura (CEAF), Camino Las Parcelas 882, km 105 Ruta 5 Sur, Sector Los Choapinos, Rengo 2940000, Chile
| | - Guillermo Toro
- Centro de Estudios Avanzados en Fruticultura (CEAF), Camino Las Parcelas 882, km 105 Ruta 5 Sur, Sector Los Choapinos, Rengo 2940000, Chile
| | - Simón Solís
- Centro de Estudios Avanzados en Fruticultura (CEAF), Camino Las Parcelas 882, km 105 Ruta 5 Sur, Sector Los Choapinos, Rengo 2940000, Chile
| | - Paula Pimentel
- Centro de Estudios Avanzados en Fruticultura (CEAF), Camino Las Parcelas 882, km 105 Ruta 5 Sur, Sector Los Choapinos, Rengo 2940000, Chile
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Israel D, Lee SH, Robson TM, Zwiazek JJ. Plasma membrane aquaporins of the PIP1 and PIP2 subfamilies facilitate hydrogen peroxide diffusion into plant roots. BMC PLANT BIOLOGY 2022; 22:566. [PMID: 36471241 PMCID: PMC9721007 DOI: 10.1186/s12870-022-03962-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 11/24/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND The permeability of plasma membrane aquaporins (PIPs) to small solutes other than water greatly diversifies their potential functions in plant development and metabolic processes. One such process is stress signalling in which hydrogen peroxide (H2O2) plays a major role. Based on transport assays carried out in yeast, there are differences in the degree to which PIPs of Arabidopsis thaliana, are permeable to H2O2 and thus they may differentially facilitate transmembrane diffusion. Here, we test whether specific PIPs aid in the transmembrane diffusion of H2O2 to such an extent that knocking-out PIPs affects plant phenotype. We examined changes in growth and morphology, including biomass accumulation, root system architecture and relative water content, as well as gas exchange, across two H2O2 treatments in knockout mutants of A. thaliana. RESULTS We could infer that PIP-type aquaporins are permeable to H2O2 in planta and that this permeability is physiologically relevant in a plant's response to oxidative stress. In particular, the lack of functional PIP2;3 confers resistance to exogenously applied H2O2 indicating that it facilitates H2O2 entry into root cells. Additionally, PIP1;1 and PIP2;6 were found to facilitate H2O2 diffusion, while PIP2;2 is required for proper root growth under controlled conditions. MAIN FINDINGS We conclude that PIPs are physiologically relevant conduits for H2O2 diffusion in the A. thaliana roots and participate in the regulation of stress responses.
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Affiliation(s)
- David Israel
- Organismal and Evolutionary Biology (OEB), Viikki Plant Science Centre (ViPS), University of Helsinki, PO Box 65, 00014 Helsinki, Finland
- Department of Renewable Resources, University of Alberta, 438 Earth Sciences Building, 11223 Saskatchewan Drive NW, Edmonton, AB T6G 2E3 Canada
| | - Seong Hee Lee
- Department of Renewable Resources, University of Alberta, 438 Earth Sciences Building, 11223 Saskatchewan Drive NW, Edmonton, AB T6G 2E3 Canada
| | - Thomas Matthew Robson
- Organismal and Evolutionary Biology (OEB), Viikki Plant Science Centre (ViPS), University of Helsinki, PO Box 65, 00014 Helsinki, Finland
- The National School of Forestry, University of Cumbria, Rydal Road, Ambleside, LA22 9BB UK
| | - Janusz Jerzy Zwiazek
- Department of Renewable Resources, University of Alberta, 438 Earth Sciences Building, 11223 Saskatchewan Drive NW, Edmonton, AB T6G 2E3 Canada
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Francisca RC, Alejandra MLM, Bárbara A, Herrera R. PIPs from Fragaria vesca: A structural analysis of native and mutated protein. J Mol Graph Model 2022; 117:108310. [PMID: 36063744 DOI: 10.1016/j.jmgm.2022.108310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 08/01/2022] [Accepted: 08/15/2022] [Indexed: 01/14/2023]
Abstract
Aquaporins are an ancient family of membrane channel proteins present in all eukaryotes and most prokaryotes, and apart from water, allow the transport of neutral solutes and organic compounds through the pore. These proteins are essential role differentially expressed during ripening in Fragaria vesca fruits. Fv PIP2-1a is intensively expressed in fruits, inclusive several other proteins member are differentially expressed in fruit but also in other plant tissues. Phylogenetic analysis shows that Fv PIP2-1a grouped with other Fragaria proteins and far apart from other F. vesca PIP proteins. A structural model for Fv PIP2-1a protein was built by comparative modelling methodology, which was validated and refined by molecular dynamics simulation. Fv PIP2-1a structure consists of 6 transmembrane regions and two NPA domains. The mobilization of water was analyzed by molecular docking simulations in wildtype and two mutants. Interestingly, the mutant FvPIP2-1a_H214G allowed the prediction of an increment in the flux of water molecules. On contrary, structural analysis predicted that H214E mutation blocked passage of water associated to constriction of the pore.
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Affiliation(s)
- Rodríguez-Cabello Francisca
- Functional Genomics, Biochemistry and Plant Physiology Group, Instituto de Ciencias Biológicas, Universidad de Talca, Talca, Chile
| | - Moya-León M Alejandra
- Functional Genomics, Biochemistry and Plant Physiology Group, Instituto de Ciencias Biológicas, Universidad de Talca, Talca, Chile
| | - Arévalo Bárbara
- Functional Genomics, Biochemistry and Plant Physiology Group, Instituto de Ciencias Biológicas, Universidad de Talca, Talca, Chile
| | - Raúl Herrera
- Functional Genomics, Biochemistry and Plant Physiology Group, Instituto de Ciencias Biológicas, Universidad de Talca, Talca, Chile.
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Wang Y, Yang S, Li C, Hu T, Hou S, Bai Q, Ji X, Xu F, Guo C, Huang M, Cai Y, Liu J. The plasma membrane-localized OsNIP1;2 mediates internal aluminum detoxification in rice. FRONTIERS IN PLANT SCIENCE 2022; 13:970270. [PMID: 36172551 PMCID: PMC9512054 DOI: 10.3389/fpls.2022.970270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 08/25/2022] [Indexed: 06/16/2023]
Abstract
Aluminum (Al) toxicity significantly restricts crop production on acidic soils. Although rice is highly resistant to Al stress, the underlying resistant mechanisms are not fully understood. Here, we characterized the function of OsNIP1;2, a plasma membrane-localized nodulin 26-like intrinsic protein (NIP) in rice. Aluminum stress specifically and quickly induced OsNIP1;2 expression in the root. Functional mutations of OsNIP1;2 in two independent rice lines led to significantly enhanced sensitivity to Al but not other metals. Moreover, the Osnip1;2 mutants had considerably more Al accumulated in the root cell wall but less in the cytosol than the wild-type rice. In addition, compared with the wild-type rice plants, the Osnip1;2 mutants contained more Al in the root but less in the shoot. When expressed in yeast, OsNIP1;2 led to enhanced Al accumulation in the cells and enhanced sensitivity to Al stress, suggesting that OsNIP1;2 facilitated Al uptake in yeast. These results suggest that OsNIP1;2 confers internal Al detoxification via taking out the root cell wall's Al, sequestering it to the root cell's vacuole, and re-distributing it to the above-ground tissues.
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Affiliation(s)
- Yuqi Wang
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
- Robert W. Holley Center, United States Department of Agriculture, Agricultural Research Service, Cornell University, Ithaca, NY, United States
| | - Shaohua Yang
- Institute of Biotechnology, Fujian Academy of Agricultural Sciences, Fuzhou, China
| | - Chune Li
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Taijiao Hu
- Institute of Biotechnology, Fujian Academy of Agricultural Sciences, Fuzhou, China
| | - Siyu Hou
- School of Agriculture, Shanxi Agricultural University, Jinzhong, China
| | - Qing Bai
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Xiyue Ji
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Feng Xu
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Chongdai Guo
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Min Huang
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Yanfei Cai
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
| | - Jiping Liu
- Robert W. Holley Center, United States Department of Agriculture, Agricultural Research Service, Cornell University, Ithaca, NY, United States
- Plant Breeding and Genetics Section, School of Integrative Plant Sciences, Cornell University, Ithaca, NY, United States
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9
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Saitoh Y, Suga M. Structure and function of a silicic acid channel Lsi1. FRONTIERS IN PLANT SCIENCE 2022; 13:982068. [PMID: 36172553 PMCID: PMC9510833 DOI: 10.3389/fpls.2022.982068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 08/24/2022] [Indexed: 05/26/2023]
Abstract
Silicon is a beneficial element for plant growth and production, especially in rice. Plant roots take up silicon in the form of silicic acid. Silicic acid channels, which belong to the NIP subfamily of aquaporins, are responsible for silicic acid uptake. Accumulated experimental results have deepened our understanding of the silicic acid channel for its uptake mechanism, physiological function, localization, and other aspects. However, how the silicic acid channel efficiently and selectively permeates silicic acid remains to be elucidated. Recently reported crystal structures of the silicic acid channel enabled us to discuss the mechanism of silicic acid uptake by plant roots at an atomic level. In this mini-review, we focus on the crystal structures of the silicic acid channel and provide a detailed description of the structural determinants of silicic acid permeation and its transport mechanism, which are crucial for the rational creation of secure and sustainable crops.
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Affiliation(s)
- Yasunori Saitoh
- Research Institute for Interdisciplinary Science, Okayama University, Okayama, Japan
| | - Michihiro Suga
- Research Institute for Interdisciplinary Science, Okayama University, Okayama, Japan
- Graduate School of Natural Science and Technology, Okayama University, Okayama, Japan
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10
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Zhang Y, Fei S, Xu Y, He Y, Zhu Z, Liu Y. The structure, function and expression analysis of the nodulin 26-like intrinsic protein subfamily of plant aquaporins in tomato. Sci Rep 2022; 12:9180. [PMID: 35655083 PMCID: PMC9163140 DOI: 10.1038/s41598-022-13195-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 05/23/2022] [Indexed: 11/25/2022] Open
Abstract
The nodulin 26-like intrinsic protein (NIP) family belonging to a group of aquaporin proteins is unique to plants. NIPs have a wide of transport activities and are involved in developmental processes and stress tolerance. The well reported Lsi1 and Lsi6 belonging to NIP III were characterized as Si transporters. However, except Lsi1 and Lsi6, most NIPs remain unknown. Here, we identified 43 putative aquaporins in tomato. We found there are 12 NIPs, including 8 NIP I proteins, 3 NIP II proteins, and 1 NIP III protein among the 43 aquaporins. Also, there are two Si efflux transporters SlLsi2-1 and SlLsi2-2 identified by using Lsi2 proteins from other species. By analysing the phylogenetic relationships, conserved residues and expression patterns, we propose that three NIP I members (SlNIP-2, SlNIP-3 and SlNIP-11) may transport water, ammonia, urea, and boric acid, and contribute to pollen development. Three NIP II proteins (SlNIP-7, SlNIP-9 and SlNIP-12) may be boric acid facilitators, and affect plant growth and anther development. Overall, the study provides valuable candidates of Si transporters and other NIP proteins to further explore their roles in uptake and transport for silicon, boron, and other substrates in tomato.
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Affiliation(s)
- Yuxiang Zhang
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Shihong Fei
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Yunmin Xu
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Yong He
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Zhujun Zhu
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China.
| | - Yuanyuan Liu
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China.
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11
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Teng GC, Boo MV, Lam SH, Pang CZ, Chew SF, Ip YK. Molecular characterization and light-dependent expression of glycerol facilitator (GlpF) in coccoid Symbiodiniaceae dinoflagellates of the giant clam Tridacna squamosa. GENE REPORTS 2022. [DOI: 10.1016/j.genrep.2022.101623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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12
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Handa N, Gupta P, Khanna K, Kohli SK, Bhardwaj R, Alam P, Ahmad P. Aquaporin-mediated transport: Insights into metalloid trafficking. PHYSIOLOGIA PLANTARUM 2022; 174:e13687. [PMID: 35514154 DOI: 10.1111/ppl.13687] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 01/23/2022] [Accepted: 04/13/2022] [Indexed: 06/14/2023]
Abstract
Metalloids in plants have diverse physiological effects. From being essential to beneficial to toxic, they have significant effects on many physiological processes, influencing crop yield and quality. Aquaporins are a group of membrane channels that have several physiological substrates along with water. Metalloids have emerged as one of their important substrates and they are found to have a substantial role in regulating plant metalloid homeostasis. The present review comprehensively details the multiple isoforms of aquaporins having specificity for metalloids and being responsible for their influx, distribution or efflux. In addition, it also highlights the usage of aquaporin-mediated transport as a selection marker in toxic screens and as tracer elements for closely related metalloids. Therefore, aquaporins, with their imperative contribution to the regulation of plant growth, development and physiological processes, need more research to unravel the metalloid trafficking mechanisms and their future applications.
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Affiliation(s)
- Neha Handa
- Plant Stress Physiology Lab, Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Pawan Gupta
- Department of Pharmacology, Shree S. K. Patel College of Pharmaceutical Education and Research, Ganpat University, Kherva, Gujarat, India
| | - Kanika Khanna
- Plant Stress Physiology Lab, Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Sukhmeen Kaur Kohli
- Plant Stress Physiology Lab, Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Renu Bhardwaj
- Plant Stress Physiology Lab, Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Pravej Alam
- Biology Department, College of Science and Humanities, Prince Sattam bin Abdulaziz University (PSAU), Alkharj, Saudi Arabia
| | - Parvaiz Ahmad
- Botany and Microbiology Department, Faculty of Science, King Saud University, Riyadh, Saudi Arabia
- Department of Botany, GDC Pulwama, Pulwama, Jammu and Kashmir, India
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13
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Shivaraj SM, Mandlik R, Bhat JA, Raturi G, Elbaum R, Alexander L, Tripathi DK, Deshmukh R, Sonah H. Outstanding Questions on the Beneficial Role of Silicon in Crop Plants. PLANT & CELL PHYSIOLOGY 2022; 63:4-18. [PMID: 34558628 DOI: 10.1093/pcp/pcab145] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 09/20/2021] [Accepted: 09/23/2021] [Indexed: 06/13/2023]
Abstract
Silicon (Si) is widely accepted as a beneficial element for plants. Despite the substantial progress made in understanding Si transport mechanisms and modes of action in plants, several questions remain unanswered. In this review, we discuss such outstanding questions and issues commonly encountered by biologists studying the role of Si in plants in relation to Si bioavailability. In recent years, advances in our understanding of the role of Si-solubilizing bacteria and the efficacy of Si nanoparticles have been made. However, there are many unknown aspects associated with structural and functional features of Si transporters, Si loading into the xylem, and the role of specialized cells like silica cells and compounds preventing Si polymerization in plant tissues. In addition, despite several 1,000 reports showing the positive effects of Si in high as well as low Si-accumulating plant species, the exact roles of Si at the molecular level are yet to be understood. Some evidence suggests that Si regulates hormonal pathways and nutrient uptake, thereby explaining various observed benefits of Si uptake. However, how Si modulates hormonal pathways or improves nutrient uptake remains to be explained. Finally, we summarize the knowledge gaps that will provide a roadmap for further research on plant silicon biology, leading to an exploration of the benefits of Si uptake to enhance crop production.
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Affiliation(s)
- S M Shivaraj
- National Agri-Food Biotechnology Institute (NABI), Sector 81, SAS Nagar, Mohali, Punjab 140308, India
| | - Rushil Mandlik
- National Agri-Food Biotechnology Institute (NABI), Sector 81, SAS Nagar, Mohali, Punjab 140308, India
- Department of Biotechnology, Panjab University, Chandigarh, Punjab 160014, India
| | - Javaid Akhter Bhat
- National Center for Soybean Improvement, Nanjing Agricultural University, Nanjing 210095, China
| | - Gaurav Raturi
- National Agri-Food Biotechnology Institute (NABI), Sector 81, SAS Nagar, Mohali, Punjab 140308, India
- Department of Biotechnology, Panjab University, Chandigarh, Punjab 160014, India
| | - Rivka Elbaum
- R H Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, Rehovot 7610001, Israel
| | - Lux Alexander
- Department of Plant Physiology, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovičova 6, Bratislava SK-84215, Slovakia
| | - Durgesh Kumar Tripathi
- Amity Institute of Organic Agriculture, Amity University, Noida, Uttar Pradesh 201313, India
| | - Rupesh Deshmukh
- National Agri-Food Biotechnology Institute (NABI), Sector 81, SAS Nagar, Mohali, Punjab 140308, India
| | - Humira Sonah
- National Agri-Food Biotechnology Institute (NABI), Sector 81, SAS Nagar, Mohali, Punjab 140308, India
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14
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Beamer ZG, Routray P, Choi WG, Spangler MK, Lokdarshi A, Roberts DM. Aquaporin family lactic acid channel NIP2;1 promotes plant survival under low oxygen stress in Arabidopsis. PLANT PHYSIOLOGY 2021; 187:2262-2278. [PMID: 34890456 PMCID: PMC8644545 DOI: 10.1093/plphys/kiab196] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 03/28/2021] [Indexed: 05/05/2023]
Abstract
Under anaerobic stress, Arabidopsis thaliana induces the expression of a collection of core hypoxia genes that encode proteins for an adaptive response. Among these genes is NIP2;1, which encodes a member of the "Nodulin 26-like Intrinsic Protein" (NIP) subgroup of the aquaporin superfamily of membrane channel proteins. NIP2;1 expression is limited to the "anoxia core" region of the root stele under normal growth conditions, but shows substantial induction (up to 1,000-fold by 2-4 h of hypoxia) by low oxygen stress, and accumulation in all root tissues. During hypoxia, NIP2;1-GFP accumulates predominantly on the plasma membrane by 2 h, is distributed between the plasma and internal membranes during sustained hypoxia, and remains elevated in root tissues through 4 h of reoxygenation recovery. In response to hypoxia challenge, T-DNA insertion mutant nip2;1 plants exhibit elevated lactic acid within root tissues, reduced efflux of lactic acid, and reduced acidification of the external medium compared to wild-type plants. Previous biochemical evidence demonstrates that NIP2;1 has lactic acid channel activity, and our work supports the hypothesis that NIP2;1 prevents lactic acid toxicity by facilitating release of cellular lactic acid from the cytosol to the apoplast, supporting eventual efflux to the rhizosphere. In evidence, nip2;1 plants demonstrate poorer survival during argon-induced hypoxia stress. Expressions of the ethanolic fermentation transcript Alcohol Dehydrogenase1 and the core hypoxia-induced transcript Alanine Aminotransferase1 are elevated in nip2;1, and expression of the Glycolate Oxidase3 transcript is reduced, suggesting NIP2;1 lactic acid efflux regulates other pyruvate and lactate metabolism pathways.
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Affiliation(s)
- Zachary G Beamer
- Department of Biochemistry and Cellular, and Molecular Biology, the University of Tennessee, Knoxville, Tennessee 37996, USA
| | | | - Won-Gyu Choi
- Department of Biochemistry and Molecular Biology, The University of Nevada, Reno, Nevada 89557, USA
| | - Margaret K Spangler
- Department of Biochemistry and Cellular, and Molecular Biology, the University of Tennessee, Knoxville, Tennessee 37996, USA
| | - Ansul Lokdarshi
- Department of Biochemistry and Cellular, and Molecular Biology, the University of Tennessee, Knoxville, Tennessee 37996, USA
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15
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Wang Y, Xiao E, Wu G, Bai Q, Xu F, Ji X, Li C, Li L, Liu J. The roles of selectivity filters in determining aluminum transport by AtNIP1;2. PLANT SIGNALING & BEHAVIOR 2021; 16:1991686. [PMID: 34709126 PMCID: PMC9208765 DOI: 10.1080/15592324.2021.1991686] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 10/03/2021] [Accepted: 10/06/2021] [Indexed: 05/26/2023]
Abstract
Aquaporins (AQPs) are channel proteins involved in transporting a variety of substrates. It has been proposed that the constriction regions in the central pores of the AQP channels play a crucial role in determining transport substrates and activities of AQPs. Our previous results suggest that AtNIP1;2, a member of the AQP superfamily in Arabidopsis, facilitates aluminum transport across the plasma membrane. However, the functions of the constriction regions in AtNIP1;2-mediated transport activities are unclear. This study reports that residue substitutions of the constriction regions affect AtNIP1;2-mediated aluminum uptake, demonstrating the critical roles of the constriction regions for transport activities. Furthermore, a constriction region that partially or wholly mimics AtNIP5;1, a demonstrated boric-acid transporter, could not render the boric-acid transport activity to AtNIP1;2. Therefore, besides the constriction regions, other structural features are also involved in determining the nature of AtNIP1;2's transport activities.Abbreviations: AIAR: alanine-isoleucine-alanine-arginine; AIGR: alanine-isoleucine-glycine- arginine; AQP: aquaporin; Al-Mal: aluminum-malate; ar/R: aromatic/arginine; AVAR: alanine-valine-alanine-arginine; CK: control; H: helical domain; ICP-MS: inductively coupled plasma mass spectrometry; LA - LE: inter-helical loops A to E; NIP: nodulin 26-like intrinsic protein; NPA: asparagine-proline-alanine; NPG: asparagine-proline- glycine; NPS: asparagine-proline-Serine; NPV: asparagine-proline-valine; ORF: open reading frame; PIP: plasma membrane intrinsic proteins; SIP: small basic intrinsic proteins; TM: transmembrane helices; WIAR: tryptophan-isoleucine-alanine-arginine; WVAR: tryptophan-valine-alanine-arginine; WVGR: tryptophan-valine-glycine- arginine.
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Affiliation(s)
- Yuqi Wang
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
- Robert W. Holley Center for Agriculture and Health, USDA-ARS, Cornell University, Ithaca, NY, USA
| | - Enzong Xiao
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Guorong Wu
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Qing Bai
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Feng Xu
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Xiyue Ji
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Chune Li
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Li Li
- Robert W. Holley Center for Agriculture and Health, USDA-ARS, Cornell University, Ithaca, NY, USA
- Plant Breeding and Genetics Section, School of Integrative Plant Sciences, Cornell University, Ithaca, Ny, USA
| | - Jiping Liu
- Robert W. Holley Center for Agriculture and Health, USDA-ARS, Cornell University, Ithaca, NY, USA
- Plant Breeding and Genetics Section, School of Integrative Plant Sciences, Cornell University, Ithaca, Ny, USA
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16
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Liu J, Qin G, Liu C, Liu X, Zhou J, Li J, Lu B, Zhao J. Genome-wide identification of candidate aquaporins involved in water accumulation of pomegranate outer seed coat. PeerJ 2021; 9:e11810. [PMID: 34316414 PMCID: PMC8286702 DOI: 10.7717/peerj.11810] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 06/27/2021] [Indexed: 01/25/2023] Open
Abstract
Aquaporins (AQPs) are a class of highly conserved integral membrane proteins that facilitate the uptake and transport of water and other small molecules across cell membranes. However, little is known about AQP genes in pomegranate (Punica granatum L.) and their potential role in water accumulation of the outer seed coat. We identified 38 PgrAQP genes in the pomegranate genome and divided them into five subfamilies based on a comparative analysis. Purifying selection played a role in the evolution of PgrAQP genes and a whole-genome duplication event in Myrtales may have contributed to the expansion of PgrTIP, PgrSIP, and PgrXIP genes. Transcriptome data analysis revealed that the PgrAQP genes exhibited different tissue-specific expression patterns. Among them, the transcript abundance of PgrPIPs were significantly higher than that of other subfamilies. The mRNA transcription levels of PgrPIP1.3, PgrPIP2.8, and PgrSIP1.2 showed a significant linear relationship with water accumulation in seed coats, indicating that PgrPIP1.3/PgrPIP2.8 located in the plasma membrane and PgrSIP1.2 proteins located on the tonoplast may be involved in water accumulation and contribute to the cell expansion of the outer seed coat, which then develops into juicy edible flesh. Overall, our results provided not only information on the characteristics and evolution of PgrAQPs, but also insights on the genetic improvement of outer seed coats.
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Affiliation(s)
- Jianjian Liu
- College of Resource and Environment, Anhui Science and Technology University, Fengyang, China.,Institute of Horticultural Research (Key Laboratory of Genetic Improvement and Ecophysiology of Horticultural Crop, Anhui Province), Anhui Academy of Agricultural Sciences, Hefei, China
| | - Gaihua Qin
- Institute of Horticultural Research (Key Laboratory of Genetic Improvement and Ecophysiology of Horticultural Crop, Anhui Province), Anhui Academy of Agricultural Sciences, Hefei, China.,Key Laboratory of Fruit Quality and Developmental Biology, Anhui Academy of Agricultural Sciences, Hefei, China
| | - Chunyan Liu
- Institute of Horticultural Research (Key Laboratory of Genetic Improvement and Ecophysiology of Horticultural Crop, Anhui Province), Anhui Academy of Agricultural Sciences, Hefei, China.,Key Laboratory of Fruit Quality and Developmental Biology, Anhui Academy of Agricultural Sciences, Hefei, China
| | - Xiuli Liu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Jie Zhou
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Jiyu Li
- Institute of Horticultural Research (Key Laboratory of Genetic Improvement and Ecophysiology of Horticultural Crop, Anhui Province), Anhui Academy of Agricultural Sciences, Hefei, China.,Key Laboratory of Fruit Quality and Developmental Biology, Anhui Academy of Agricultural Sciences, Hefei, China
| | - Bingxin Lu
- College of Resource and Environment, Anhui Science and Technology University, Fengyang, China
| | - Jianrong Zhao
- College of Resource and Environment, Anhui Science and Technology University, Fengyang, China
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17
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Venisse JS, Õunapuu-Pikas E, Dupont M, Gousset-Dupont A, Saadaoui M, Faize M, Chen S, Chen S, Petel G, Fumanal B, Roeckel-Drevet P, Sellin A, Label P. Genome-Wide Identification, Structure Characterization, and Expression Pattern Profiling of the Aquaporin Gene Family in Betula pendula. Int J Mol Sci 2021; 22:7269. [PMID: 34298887 PMCID: PMC8304918 DOI: 10.3390/ijms22147269] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 06/29/2021] [Accepted: 06/30/2021] [Indexed: 01/12/2023] Open
Abstract
Aquaporin water channels (AQPs) constitute a large family of transmembrane proteins present throughout all kingdoms of life. They play key roles in the flux of water and many solutes across the membranes. The AQP diversity, protein features, and biological functions of silver birch are still unknown. A genome analysis of Betula pendula identified 33 putative genes encoding full-length AQP sequences (BpeAQPs). They are grouped into five subfamilies, representing ten plasma membrane intrinsic proteins (PIPs), eight tonoplast intrinsic proteins (TIPs), eight NOD26-like intrinsic proteins (NIPs), four X intrinsic proteins (XIPs), and three small basic intrinsic proteins (SIPs). The BpeAQP gene structure is conserved within each subfamily, with exon numbers ranging from one to five. The predictions of the aromatic/arginine selectivity filter (ar/R), Froger's positions, specificity-determining positions, and 2D and 3D biochemical properties indicate noticeable transport specificities to various non-aqueous substrates between members and/or subfamilies. Nevertheless, overall, the BpePIPs display mostly hydrophilic ar/R selective filter and lining-pore residues, whereas the BpeTIP, BpeNIP, BpeSIP, and BpeXIP subfamilies mostly contain hydrophobic permeation signatures. Transcriptional expression analyses indicate that 23 BpeAQP genes are transcribed, including five organ-related expressions. Surprisingly, no significant transcriptional expression is monitored in leaves in response to cold stress (6 °C), although interesting trends can be distinguished and will be discussed, notably in relation to the plasticity of this pioneer species, B. pendula. The current study presents the first detailed genome-wide analysis of the AQP gene family in a Betulaceae species, and our results lay a foundation for a better understanding of the specific functions of the BpeAQP genes in the responses of the silver birch trees to cold stress.
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Affiliation(s)
- Jean-Stéphane Venisse
- Université Clermont Auvergne, INRAE, PIAF, 63000 Clermont-Ferrand, France; (M.D.); (A.G.-D.); (M.S.); (G.P.); (B.F.); (P.R.-D.)
| | - Eele Õunapuu-Pikas
- Institute of Ecology and Earth Sciences, University of Tartu, 51005 Tartu, Estonia; (E.Õ.-P.); (A.S.)
| | - Maxime Dupont
- Université Clermont Auvergne, INRAE, PIAF, 63000 Clermont-Ferrand, France; (M.D.); (A.G.-D.); (M.S.); (G.P.); (B.F.); (P.R.-D.)
| | - Aurélie Gousset-Dupont
- Université Clermont Auvergne, INRAE, PIAF, 63000 Clermont-Ferrand, France; (M.D.); (A.G.-D.); (M.S.); (G.P.); (B.F.); (P.R.-D.)
| | - Mouadh Saadaoui
- Université Clermont Auvergne, INRAE, PIAF, 63000 Clermont-Ferrand, France; (M.D.); (A.G.-D.); (M.S.); (G.P.); (B.F.); (P.R.-D.)
- National Institute of Agronomy of Tunisia (INAT), Crop Improvement Laboratory, INRAT, Tunis CP 1004, Tunisia
| | - Mohamed Faize
- Laboratory of Plant Biotechnology, Ecology and Ecosystem Valorization, Faculty of Sciences, University Chouaib Doukkali, El Jadida 24000, Morocco;
| | - Song Chen
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China; (S.C.); (S.C.)
| | - Su Chen
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China; (S.C.); (S.C.)
| | - Gilles Petel
- Université Clermont Auvergne, INRAE, PIAF, 63000 Clermont-Ferrand, France; (M.D.); (A.G.-D.); (M.S.); (G.P.); (B.F.); (P.R.-D.)
| | - Boris Fumanal
- Université Clermont Auvergne, INRAE, PIAF, 63000 Clermont-Ferrand, France; (M.D.); (A.G.-D.); (M.S.); (G.P.); (B.F.); (P.R.-D.)
| | - Patricia Roeckel-Drevet
- Université Clermont Auvergne, INRAE, PIAF, 63000 Clermont-Ferrand, France; (M.D.); (A.G.-D.); (M.S.); (G.P.); (B.F.); (P.R.-D.)
| | - Arne Sellin
- Institute of Ecology and Earth Sciences, University of Tartu, 51005 Tartu, Estonia; (E.Õ.-P.); (A.S.)
| | - Philippe Label
- Université Clermont Auvergne, INRAE, PIAF, 63000 Clermont-Ferrand, France; (M.D.); (A.G.-D.); (M.S.); (G.P.); (B.F.); (P.R.-D.)
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18
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Israel D, Khan S, Warren CR, Zwiazek JJ, Robson TM. The contribution of PIP2-type aquaporins to photosynthetic response to increased vapour pressure deficit. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:5066-5078. [PMID: 33928350 PMCID: PMC8219038 DOI: 10.1093/jxb/erab187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 04/26/2021] [Indexed: 06/12/2023]
Abstract
The roles of different plasma membrane aquaporins (PIPs) in leaf-level gas exchange of Arabidopsis thaliana were examined using knockout mutants. Since multiple Arabidopsis PIPs are implicated in CO2 transport across cell membranes, we focused on identifying the effects of the knockout mutations on photosynthesis, and whether they are mediated through the control of stomatal conductance of water vapour (gs), mesophyll conductance of CO2 (gm), or both. We grew Arabidopsis plants in low and high humidity environments and found that the contribution of PIPs to gs was larger under low air humidity when the evaporative demand was high, whereas any effect of a lack of PIP function was minimal under higher humidity. The pip2;4 knockout mutant had 44% higher gs than wild-type plants under low humidity, which in turn resulted in an increased net photosynthetic rate (Anet). We also observed a 23% increase in whole-plant transpiration (E) for this knockout mutant. The lack of functional plasma membrane aquaporin AtPIP2;5 did not affect gs or E, but resulted in homeostasis of gm despite changes in humidity, indicating a possible role in regulating CO2 membrane permeability. CO2 transport measurements in yeast expressing AtPIP2;5 confirmed that this aquaporin is indeed permeable to CO2.
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Affiliation(s)
- David Israel
- Organismal and Evolutionary Biology (OEB), Viikki Plant Science Centre (ViPS), University of Helsinki, Finland
| | - Shanjida Khan
- Department of Renewable Resources, University of Alberta, Canada
| | - Charles R Warren
- School of Life and Environmental Sciences, University of Sydney, Australia
| | - Janusz J Zwiazek
- Department of Renewable Resources, University of Alberta, Canada
| | - T Matthew Robson
- Organismal and Evolutionary Biology (OEB), Viikki Plant Science Centre (ViPS), University of Helsinki, Finland
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19
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Tyerman SD, McGaughey SA, Qiu J, Yool AJ, Byrt CS. Adaptable and Multifunctional Ion-Conducting Aquaporins. ANNUAL REVIEW OF PLANT BIOLOGY 2021; 72:703-736. [PMID: 33577345 DOI: 10.1146/annurev-arplant-081720-013608] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Aquaporins function as water and neutral solute channels, signaling hubs, disease virulence factors, and metabolon components. We consider plant aquaporins that transport ions compared to some animal counterparts. These are candidates for important, as yet unidentified, cation and anion channels in plasma, tonoplast, and symbiotic membranes. For those individual isoforms that transport ions, water, and gases, the permeability spans 12 orders of magnitude. This requires tight regulation of selectivity via protein interactions and posttranslational modifications. A phosphorylation-dependent switch between ion and water permeation in AtPIP2;1 might be explained by coupling between the gates of the four monomer water channels and the central pore of the tetramer. We consider the potential for coupling between ion and water fluxes that could form the basis of an electroosmotic transducer. A grand challenge in understanding the roles of ion transporting aquaporins is their multifunctional modes that are dependent on location, stress, time, and development.
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Affiliation(s)
- Stephen D Tyerman
- Australian Research Council (ARC) Centre of Excellence in Plant Energy Biology, School of Agriculture, Food and Wine, University of Adelaide, Glen Osmond, South Australia 5064, Australia; ,
| | - Samantha A McGaughey
- ARC Centre of Excellence for Translational Photosynthesis, Division of Plant Sciences, Research School of Biology, Australian National University, Acton, Australian Capital Territory 0200, Australia; ,
| | - Jiaen Qiu
- Australian Research Council (ARC) Centre of Excellence in Plant Energy Biology, School of Agriculture, Food and Wine, University of Adelaide, Glen Osmond, South Australia 5064, Australia; ,
| | - Andrea J Yool
- Adelaide Medical School, University of Adelaide, Adelaide, South Australia 5005, Australia;
| | - Caitlin S Byrt
- ARC Centre of Excellence for Translational Photosynthesis, Division of Plant Sciences, Research School of Biology, Australian National University, Acton, Australian Capital Territory 0200, Australia; ,
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20
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Ahmed S, Kouser S, Asgher M, Gandhi SG. Plant aquaporins: A frontward to make crop plants drought resistant. PHYSIOLOGIA PLANTARUM 2021; 172:1089-1105. [PMID: 33826759 DOI: 10.1111/ppl.13416] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 02/10/2021] [Accepted: 04/03/2021] [Indexed: 05/25/2023]
Abstract
Drought stress alters gene expression and causes cellular damage in crop plants. Drought inhibits photosynthesis by reducing the content and the activity of the photosynthetic carbon reduction cycle, ultimately decreasing the crop yield. The role of aquaporins (AQP) in improving the growth and adaptation of crop plants under drought stress is of importance. AQP form channels and control water transport in and out of the cells and are associated with drought tolerance mechanisms. The current review addresses: (1) the evolution of AQPs in plants, (2) the classification of plant AQPs, (3) the role of AQPs in drought alleviation in crop plants, and (4) the phytohormone crosstalk with AQPs in crops exposed to drought stress.
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Affiliation(s)
- Sajad Ahmed
- Plant Biotechnology Division, Indian Institute of Integrative Medicine (CSIR), Jammu, India
| | - Shaista Kouser
- Department of Botany, School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri, India
| | - Mohd Asgher
- Plant Physiology and Biochemistry Laboratory, Department of Botany, School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri, India
| | - Sumit G Gandhi
- Plant Biotechnology Division, Indian Institute of Integrative Medicine (CSIR), Jammu, India
- Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, India
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21
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Lee YM, Chae GY, Kim MK, Kim S. Comparative Analysis of Re-Annotated Genes Provides Insight into Evolutionary Divergence and Expressions of Aquaporin Family in Pepper. PLANTS 2021; 10:plants10061039. [PMID: 34064088 PMCID: PMC8224332 DOI: 10.3390/plants10061039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/13/2021] [Accepted: 05/19/2021] [Indexed: 11/16/2022]
Abstract
Aquaporins (AQPs) are known to have a vital role in water transport in all living organisms including agriculturally important crops, but a comprehensive genomic study of AQPs in pepper has not been implemented. Here, we updated previous gene annotations and generated a total of 259 AQP genes from five plants, including pepper. Phylogenetic and motif analyses revealed that a large proportion of pepper AQP genes belong to the specific subgroup of tonoplast intrinsic protein (TIP) subfamily, TIP4. Chromosomal localization and estimated duplication times illustrated that genes in TIP4 formed a tandem array on the short arm of chromosome 1, resulting from pepper-specific expansion after its divergence with Solanaceae species. Transcriptome analyses under various abiotic stress conditions revealed that transport-, photosystem-, and thylakoid-related genes were generally enriched in expression clusters containing AQP genes in pepper. These results provide valuable genomic resources and insight into the evolutionary mechanism that generate genomic diversity of the AQP gene family in pepper.
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22
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Tripathi DK, Vishwakarma K, Singh VP, Prakash V, Sharma S, Muneer S, Nikolic M, Deshmukh R, Vaculík M, Corpas FJ. Silicon crosstalk with reactive oxygen species, phytohormones and other signaling molecules. JOURNAL OF HAZARDOUS MATERIALS 2021; 408:124820. [PMID: 33516974 DOI: 10.1016/j.jhazmat.2020.124820] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 10/20/2020] [Accepted: 12/08/2020] [Indexed: 05/28/2023]
Abstract
Exogenous applications of silicon (Si) can initiate cellular defence pathways to enhance plant resistance to abiotic and biotic stresses. Plant Si accumulation is regulated by several transporters of silicic acid (e.g. Lsi1, Lsi2, and Lsi6), but the precise mechanisms involved in overall Si transport and its beneficial effects remains unclear. In stressed plants, the accumulation of Si leads to a defence mechanism involving the formation of amorphous or hydrated silicic acid caused by their polymerization and interaction with other organic substances. Silicon also regulates plant ionic homeostasis, which involves the nutrient acquisition, availability, and replenishment in the soil through biogeochemical cycles. Furthermore, Si is implicated in modulating ethylene-dependent and jasmonate pathways, as well as other phytohormones, particularly under stress conditions. Crosstalk between Si and phytohormones could lead to improvements in Si-mediated crop growth, especially when plants are exposed to stress. The integration of Si with reactive oxygen species (ROS) metabolism appears to be a part of the signaling cascade that regulates plant phytohormone homeostasis, as well as morphological, biochemical, and molecular responses. This review aims to provide an update on Si interplays with ROS, phytohormones, and other signaling molecules that regulate plant development under stress conditions.
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Affiliation(s)
- Durgesh Kumar Tripathi
- Amity Institute of Organic Agriculture (AIOA), Amity University Uttar Pradesh, Sector-125, Noida, India
| | - Kanchan Vishwakarma
- Amity Institute of Microbial Technology, Amity University Uttar Pradesh, Sector-125, Noida, India
| | - Vijay Pratap Singh
- Department of Botany, C.M.P. Degree College, A Constituent PG College of University of Allahabad, Prayagraj, India
| | - Ved Prakash
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, India
| | - Shivesh Sharma
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, India
| | - Sowbiya Muneer
- School of Agricultural Innovations and Advanced Learning, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Miroslav Nikolic
- Institute for Multidisciplinary Research, University of Belgrade, Belgrade, Serbia
| | - Rupesh Deshmukh
- National Agri-Food Biotechnology Institute (NABI), Mohali, Punjab, India
| | - Marek Vaculík
- Department of Plant Physiology, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovicova 6, Mlynská dolina, Bratislava, Slovakia; Institute of Botany, Plant Science. and Biodiversity Centre, Slovak Academy of Sciences, Dubravska cesta 9, Bratislava, Slovakia
| | - Francisco J Corpas
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry and Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Profesor Albareda, Granada, Spain.
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Coêlho MRV, Rivas R, Ferreira-Neto JRC, Bezerra-Neto JP, Pandolfi V, Benko-Iseppon AM, Santos MG. Salt tolerance of Calotropis procera begins with immediate regulation of aquaporin activity in the root system. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2021; 27:457-468. [PMID: 33854276 PMCID: PMC7981346 DOI: 10.1007/s12298-021-00957-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 02/10/2021] [Accepted: 02/12/2021] [Indexed: 05/07/2023]
Abstract
UNLABELLED The ability to respond quickly to salt stress can determine the tolerance level of a species. Here, we test how rapidly the roots of Calotropis procera react to high salinity conditions. In the first 24 h after saline exposure, the plants reduced stomatal conductance, increased CO2 assimilation, and water use efficiency. Thus, the root tissue showed an immediate increase in soluble sugars, free amino acid, and soluble protein contents. Twelve aquaporins showed differential gene expression in the roots of C. procera under salinity. Transcriptional upregulation was observed only after 2 h, with greater induction of CpTIP1.4 (fourfold). Transcriptional downregulation, in turn, occurred mainly after 8 h, with the largest associated with CpPIP1.2 (fourfold). C. procera plants responded quickly to high saline levels. Our results showed a strong stomatal control associated with high free amino acid and soluble sugar contents, regulated aquaporin expression in roots, and supported the high performance of the root system of C. procera under salinity. Moreover, this species was able to maintain a lower Na+/K+ ratio in the leaves compared to that of the roots of stressed plants. The first response of the root system, after immediate contact with saline solution, present an interesting scenario to discuss. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s12298-021-00957-9.
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Affiliation(s)
- Maria R. V. Coêlho
- Laboratório de Fisiologia Vegetal, Departamento de Botânica, Universidade Federal de Pernambuco, Recife, PE 50670-901 Brazil
| | - Rebeca Rivas
- Laboratório de Fisiologia Vegetal, Departamento de Botânica, Universidade Federal de Pernambuco, Recife, PE 50670-901 Brazil
| | - José R. C. Ferreira-Neto
- Laboratório de Genética E Biotecnologia Vegetal, Departamento de Genética, Universidade Federal de Pernambuco, Recife, PE 50670-901 Brazil
| | - João P. Bezerra-Neto
- Laboratório de Genética E Biotecnologia Vegetal, Departamento de Genética, Universidade Federal de Pernambuco, Recife, PE 50670-901 Brazil
| | - Valesca Pandolfi
- Laboratório de Genética E Biotecnologia Vegetal, Departamento de Genética, Universidade Federal de Pernambuco, Recife, PE 50670-901 Brazil
| | - Ana Maria Benko-Iseppon
- Laboratório de Genética E Biotecnologia Vegetal, Departamento de Genética, Universidade Federal de Pernambuco, Recife, PE 50670-901 Brazil
| | - Mauro G. Santos
- Laboratório de Fisiologia Vegetal, Departamento de Botânica, Universidade Federal de Pernambuco, Recife, PE 50670-901 Brazil
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Han Y, Li R, Liu Y, Fan S, Wan S, Zhang X, Li G. The Major Intrinsic Protein Family and Their Function Under Salt-Stress in Peanut. Front Genet 2021; 12:639585. [PMID: 33719349 PMCID: PMC7943621 DOI: 10.3389/fgene.2021.639585] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 01/22/2021] [Indexed: 01/18/2023] Open
Abstract
Peanut (Arachis hypogaea) is an important oil crop cultivated across the world. Abiotic stresses are the major constraint factors that defect its yield, especially in the rainfed peanut cultivation areas. Aquaporins are proteins that form a large family of more than 30 members in higher plants and play key roles in plant water balance under abiotic stress conditions. To comprehensively understand the functions of aquaporins in peanut, we identified their family genome-wide and characterized the phylogenetics, gene structure, and the conserved motif of the selective filter. In total, 64 aquaporin isoforms were identified, the NIPs were firstly categorized into NIP1s and NIP2s groups based on the phylogenetic analysis and the selective filter structure classification system. Further, we analyzed the gene expression pattern under the salt-stress conditions and found that a TIP3 member is strongly induced by salt stress, which in turn contributed to improved seed germination under salt stress when expressed in Arabidopsis. Our study thus provides comprehensive profiles on the MIP superfamily and their expression and function under salt-stress conditions. We believe that our findings will facilitate the better understanding of the roles of aquaporins in peanuts under salt salt-stress conditions.
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Affiliation(s)
- Yan Han
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Ji'nan, China
| | - Rongchong Li
- Key Laboratory of Crop Genetic Improvement & Ecology and Physiology, Bio-technology Research Center, Shandong Academy of Agricultural Sciences, Ji'nan, China
| | - Yiyang Liu
- Key Laboratory of Crop Genetic Improvement & Ecology and Physiology, Bio-technology Research Center, Shandong Academy of Agricultural Sciences, Ji'nan, China
| | - Shoujin Fan
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Ji'nan, China
| | - Shubo Wan
- Key Laboratory of Crop Genetic Improvement & Ecology and Physiology, Bio-technology Research Center, Shandong Academy of Agricultural Sciences, Ji'nan, China
| | - Xuejie Zhang
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Ji'nan, China
| | - Guowei Li
- Key Laboratory of Crop Genetic Improvement & Ecology and Physiology, Bio-technology Research Center, Shandong Academy of Agricultural Sciences, Ji'nan, China
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Li Q, Tong T, Jiang W, Cheng J, Deng F, Wu X, Chen ZH, Ouyang Y, Zeng F. Highly Conserved Evolution of Aquaporin PIPs and TIPs Confers Their Crucial Contribution to Flowering Process in Plants. FRONTIERS IN PLANT SCIENCE 2021; 12:761713. [PMID: 35058944 PMCID: PMC8764411 DOI: 10.3389/fpls.2021.761713] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 11/22/2021] [Indexed: 05/10/2023]
Abstract
Flowering is the key process for the sexual reproduction in seed plants. In gramineous crops, the process of flowering, which includes the actions of both glume opening and glume closing, is directly driven by the swelling and withering of lodicules due to the water flow into and out of lodicule cells. All these processes are considered to be controlled by aquaporins, which are the essential transmembrane proteins that facilitate the transport of water and other small molecules across the biological membranes. In the present study, the evolution of aquaporins and their contribution to flowering process in plants were investigated via an integration of genome-wide analysis and gene expression profiling. Across the barley genome, we found that HvTIP1;1, HvTIP1;2, HvTIP2;3, and HvPIP2;1 were the predominant aquaporin genes in lodicules and significantly upregulated in responding to glume opening and closing, suggesting the importance of them in the flowering process of barley. Likewise, the putative homologs of the above four aquaporin genes were also abundantly expressed in lodicules of the other monocots like rice and maize and in petals of eudicots like cotton, tobacco, and tomato. Furthermore, all of them were mostly upregulated in responding to the process of floret opening, indicating a conserved function of these aquaporin proteins in plant flowering. The phylogenetic analysis based on the OneKP database revealed that the homologs of TIP1;1, TIP1;2, TIP2;3, and PIP2;1 were highly conserved during the evolution, especially in the angiosperm species, in line with their conserved function in controlling the flowering process. Taken together, it could be concluded that the highly evolutionary conservation of TIP1;1, TIP1;2, TIP2;3 and PIP2;1 plays important roles in the flowering process for both monocots and eudicots.
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Affiliation(s)
- Qi Li
- Institute of Crop Science, Zhejiang University, Hangzhou, China
| | - Tao Tong
- Collaborative Innovation Center for Grain Industry, College of Agriculture, Yangtze University, Jingzhou, China
| | - Wei Jiang
- Collaborative Innovation Center for Grain Industry, College of Agriculture, Yangtze University, Jingzhou, China
| | - Jianhui Cheng
- Collaborative Innovation Center for Grain Industry, College of Agriculture, Yangtze University, Jingzhou, China
| | - Fenglin Deng
- Collaborative Innovation Center for Grain Industry, College of Agriculture, Yangtze University, Jingzhou, China
| | - Xiaojian Wu
- Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Zhong-Hua Chen
- School of Science, Western Sydney University, Penrith, NSW, Australia
| | - Younan Ouyang
- China National Rice Research Institute, Hangzhou, China
| | - Fanrong Zeng
- Institute of Crop Science, Zhejiang University, Hangzhou, China
- Collaborative Innovation Center for Grain Industry, College of Agriculture, Yangtze University, Jingzhou, China
- *Correspondence: Fanrong Zeng,
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Rios JJ, Lopez-Zaplana A, Bárzana G, Martinez-Alonso A, Carvajal M. Foliar Application of Boron Nanoencapsulated in Almond Trees Allows B Movement Within Tree and Implements Water Uptake and Transport Involving Aquaporins. FRONTIERS IN PLANT SCIENCE 2021; 12:752648. [PMID: 34868141 PMCID: PMC8636056 DOI: 10.3389/fpls.2021.752648] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 09/29/2021] [Indexed: 05/08/2023]
Abstract
Nanotechnology brings to agriculture new forms of fertilizer applications, which could be used to reduce environmental contamination and increase efficiency. In this study, foliar fertilization with nanoencapsulated boron (B) was studied in comparison to an ionic B (non-encapsulated) application in young B-deficient almond trees grown under a controlled environment. B movement within the plant in relation to the leaf gas exchange, water relations parameters, and root hydraulic conductance was measured. Also, the expression of aquaporins (AQPs) [plasma membrane intrinsic protein (PIP) and tonoplast intrinsic protein (TIP)] was studied in relation to water uptake and transport parameters to establish the effectiveness of the different B treatments. The obtained results were associated with a high concentration of observed B with nanoencapsulated B, provided by the higher permeability of carrier nanovesicles, which allowed B to reach the cell wall more efficiently. The increases in water uptake and transport obtained in these plants could be related to the role that this element played in the cell wall and the relationship that it could have in the regulation of the expression of AQPs and their involvement in water relations. Also, an increase in the expression of PIPs (mainly PIP2.2) to the applied nanoencapsulated B could be related to the need for B and water transport, and fine regulation of TIP1.1 in relation to B concentration in tissues provides an important feature in the remobilization of B within the cell.
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Lopez-Zaplana A, Nicolas-Espinosa J, Carvajal M, Bárzana G. Genome-wide analysis of the aquaporin genes in melon (Cucumis melo L.). Sci Rep 2020; 10:22240. [PMID: 33335220 PMCID: PMC7747737 DOI: 10.1038/s41598-020-79250-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 12/02/2020] [Indexed: 12/18/2022] Open
Abstract
Melon (Cucumis melo L.) is a very important crop throughout the world and has great economic importance, in part due to its nutritional properties. It prefers well-drained soil with low acidity and has a strong demand for water during fruit set. Therefore, a correct water balance—involving aquaporins—is necessary to maintain the plants in optimal condition. This manuscript describes the identification and comparative analysis of the complete set of aquaporins in melon. 31 aquaporin genes were identified, classified and analysed according to the evolutionary relationship of melon with related plant species. The individual role of each aquaporin in the transport of water, ions and small molecules was discussed. Finally, qPCR revealed that almost all melon aquaporins in roots and leaves were constitutively expressed. However, the high variations in expression among them point to different roles in water and solute transport, providing important features as that CmPIP1;1 is the predominant isoform and CmTIP1;1 is revealed as the most important osmoregulator in the tonoplast under optimal conditions. The results of this work pointing to the physiological importance of each individual aquaporin of melon opening a field of knowledge that deserves to be investigated.
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Affiliation(s)
- Alvaro Lopez-Zaplana
- Aquaporins Group, Plant Nutrition Department, Centro de Edafología Y Biología Aplicada del Segura (CEBAS-CSIC), Campus Universitario de Espinardo, Edificio 25, 30100, Murcia, Spain
| | - Juan Nicolas-Espinosa
- Aquaporins Group, Plant Nutrition Department, Centro de Edafología Y Biología Aplicada del Segura (CEBAS-CSIC), Campus Universitario de Espinardo, Edificio 25, 30100, Murcia, Spain
| | - Micaela Carvajal
- Aquaporins Group, Plant Nutrition Department, Centro de Edafología Y Biología Aplicada del Segura (CEBAS-CSIC), Campus Universitario de Espinardo, Edificio 25, 30100, Murcia, Spain
| | - Gloria Bárzana
- Aquaporins Group, Plant Nutrition Department, Centro de Edafología Y Biología Aplicada del Segura (CEBAS-CSIC), Campus Universitario de Espinardo, Edificio 25, 30100, Murcia, Spain.
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Balasaheb Karle S, Kumar K, Srivastava S, Suprasanna P. Cloning, in silico characterization and expression analysis of TIP subfamily from rice (Oryza sativa L.). Gene 2020; 761:145043. [DOI: 10.1016/j.gene.2020.145043] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 07/28/2020] [Accepted: 08/05/2020] [Indexed: 01/31/2023]
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Grondin A, Affortit P, Tranchant-Dubreuil C, de la Fuente-Cantó C, Mariac C, Gantet P, Vadez V, Vigouroux Y, Laplaze L. Aquaporins are main contributors to root hydraulic conductivity in pearl millet [Pennisetum glaucum (L) R. Br.]. PLoS One 2020; 15:e0233481. [PMID: 33001997 PMCID: PMC7529256 DOI: 10.1371/journal.pone.0233481] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 09/11/2020] [Indexed: 11/19/2022] Open
Abstract
Pearl millet is a key cereal for food security in arid and semi-arid regions but its yield is increasingly threatened by water stress. Physiological mechanisms relating to conservation of soil water or increased water use efficiency can alleviate that stress. Aquaporins (AQP) are water channels that mediate root water transport, thereby influencing plant hydraulics, transpiration and soil water conservation. However, AQP remain largely uncharacterized in pearl millet. Here, we studied AQP function in root water transport in two pearl millet lines contrasting for water use efficiency (WUE). We observed that these lines also contrasted for root hydraulic conductivity (Lpr) and AQP contribution to Lpr. The line with lower WUE showed significantly higher AQP contribution to Lpr. To investigate AQP isoforms contributing to Lpr, we developed genomic approaches to first identify the entire AQP family in pearl millet and secondly, characterize the plasma membrane intrinsic proteins (PIP) gene expression profile. We identified and annotated 33 AQP genes in pearl millet, among which ten encoded PIP isoforms. PgPIP1-3 and PgPIP1-4 were significantly more expressed in the line showing lower WUE, higher Lpr and higher AQP contribution to Lpr. Overall, our study suggests that the PIP1 AQP family are the main regulators of Lpr in pearl millet and may possibly be associated with mechanisms associated to whole plant water use. This study paves the way for further investigations on AQP functions in pearl millet hydraulics and adaptation to environmental stresses.
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Affiliation(s)
- Alexandre Grondin
- UMR DIADE, IRD, Université de Montpellier, Montpellier, France
- Laboratoire Mixte International Adaptation des Plantes et Microorganismes Associés Aux Stress Environnementaux, Dakar, Senegal
- Laboratoire Commun de Microbiologie, Dakar, Senegal
- Centre d’Étude Régional pour l’Amélioration de l’Adaptation à la Sécheresse, Thiès, Senegal
- * E-mail:
| | - Pablo Affortit
- UMR DIADE, IRD, Université de Montpellier, Montpellier, France
- Laboratoire Mixte International Adaptation des Plantes et Microorganismes Associés Aux Stress Environnementaux, Dakar, Senegal
| | | | | | - Cédric Mariac
- UMR DIADE, IRD, Université de Montpellier, Montpellier, France
| | - Pascal Gantet
- UMR DIADE, IRD, Université de Montpellier, Montpellier, France
| | - Vincent Vadez
- UMR DIADE, IRD, Université de Montpellier, Montpellier, France
- International Crops Research Institute for Semi-Arid Tropics (ICRISAT), Hyderabad, India
| | - Yves Vigouroux
- UMR DIADE, IRD, Université de Montpellier, Montpellier, France
| | - Laurent Laplaze
- UMR DIADE, IRD, Université de Montpellier, Montpellier, France
- Laboratoire Mixte International Adaptation des Plantes et Microorganismes Associés Aux Stress Environnementaux, Dakar, Senegal
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Insights into the Selectivity Mechanisms of Grapevine NIP Aquaporins. Int J Mol Sci 2020; 21:ijms21186697. [PMID: 32933135 PMCID: PMC7576499 DOI: 10.3390/ijms21186697] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 09/05/2020] [Accepted: 09/10/2020] [Indexed: 12/11/2022] Open
Abstract
Nodulin 26-like intrinsic proteins (NIPs) of the plant aquaporin family majorly facilitate the transport of physiologically relevant solutes. The present study intended to investigate how substrate selectivity in grapevine NIPs is influenced by the aromatic/arginine (ar/R) selectivity filter within the pore and the possible underlying mechanisms. A mutational approach was used to interchange the ar/R residues between grapevine NIPs (VvTnNIP1;1 with VvTnNIP6;1, and VvTnNIP2;1 with VvTnNIP5;1). Their functional characterization by stopped-flow spectroscopy in Saccharomyces cerevisiae revealed that mutations in residues of H2/H5 helices in VvTnNIP1;1 and VvTnNIP6;1 caused a general decline in membrane glycerol permeability but did not impart the expected substrate conductivity in the mutants. This result suggests that ar/R filter substitution could alter the NIP channel activity, but it was not sufficient to interchange their substrate preferences. Further, homology modeling analyses evidenced that variations in the pore radius combined with the differences in the channel's physicochemical properties (hydrophilicity/hydrophobicity) may drive substrate selectivity. Furthermore, yeast growth assays showed that H5 residue substitution alleviated the sensitivity of VvTnNIP2;1 and VvTnNIP5;1 to As, B, and Se, implying importance of H5 sequence for substrate selection. These results contribute to the knowledge of the overall determinants of substrate selectivity in NIPs.
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Putative Silicon Transporters and Effect of Temperature Stresses and Silicon Supplementation on Their Expressions and Tissue Silicon Content in Poinsettia. PLANTS 2020; 9:plants9050569. [PMID: 32365688 PMCID: PMC7284485 DOI: 10.3390/plants9050569] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 04/10/2020] [Accepted: 04/28/2020] [Indexed: 11/24/2022]
Abstract
Silicon (Si) is a beneficial element for plants. To understand Si uptake and accumulation in poinsettia, the Si transporters and their expression patterns were investigated. Nodulin 26-like intrinsic membrane proteins (NIPs) act as transporters of water and small solutes, including silicic acid. In this study, one NIP member, designated EpLsi1, was identified. Additionally, a protein from the citrate transporter family, designated EpLsi2, was identified. Sequence analyses indicated that EpLsi1 belonged to the NIP-I subgroup, which has a low Si uptake capacity. Consistently, the measured tissue Si content in the poinsettia was less than 1.73 ± 0.17 mg·g−1 dry weight, which was very low when compared to that in high Si accumulators. The expressions of EpLsi1 and EpLsi2 in poinsettia cuttings treated with 0 mg·L−1 Si decreased under temperature stresses. A short-term Si supplementation decreased the expressions of both EpLsi1 and EpLsi2 in the roots and leaves, while a long-term Si supplementation increased the expression of EpLsi1 in the leaves, bracts, and cyathia, and increased the expression of EpLsi2 in the roots and leaves. Tissue Si content increased in the roots of cuttings treated with 75 mg·L−1 Si at both 4 and 40 °C, indicating that the transport activities of the EpLsi1 were enhanced under temperature stresses. A long-term Si supplementation increased the tissue Si content in the roots of poinsettia treated with 75 mg·L−1 Si. Overall, poinsettia was a low Si accumulator, the expressions of Si transporters were down-regulated, and the tissue Si content increased with temperature stresses and Si supplementation. These results may help the breeding and commercial production of poinsettia.
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Buoso S, Pagliari L, Musetti R, Fornasier F, Martini M, Loschi A, Fontanella MC, Ermacora P. With or Without You: Altered Plant Response to Boron-Deficiency in Hydroponically Grown Grapevines Infected by Grapevine Pinot Gris Virus Suggests a Relation Between Grapevine Leaf Mottling and Deformation Symptom Occurrence and Boron Plant Availability. FRONTIERS IN PLANT SCIENCE 2020; 11:226. [PMID: 32194603 PMCID: PMC7062799 DOI: 10.3389/fpls.2020.00226] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 02/13/2020] [Indexed: 06/10/2023]
Abstract
Despite the increasing spread of Grapevine Leaf Mottling and Deformation (GLMD) worldwide, little is known about its etiology. After identification of grapevine Pinot gris virus (GPGV) as the presumptive causal agent of the disease in 2015, various publications have evaluated GPGV involvement in GLMD. Nevertheless, there are only partial clues to explain the presence of GPGV in both symptomatic and asymptomatic grapevines and the mechanisms that trigger symptom development, and so a consideration of new factors is required. Given the similarities between GLMD and boron (B)-deficiency symptoms in grapevine plants, we posited that GPGV interferes in B homeostasis. By using a hydroponic system to control B availability, we investigated the effects of different B supplies on grapevine phenotype and those of GPGV infection on B acquisition and translocation machinery, by means of microscopy, ionomic and gene expression analyses in both roots and leaves. The transcription of the genes regulating B homeostasis was unaffected by the presence of GPGV alone, but was severely altered in plants exposed to both GPGV infection and B-deficiency, allowing us to speculate that the capricious and patchy occurrence of GLMD symptoms in the field may not be related solely to GPGV, but to GPGV interference in plant responses to different B availabilities. This hypothesis found preliminary positive confirmations in analyses on field-grown plants.
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Affiliation(s)
- Sara Buoso
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Udine, Italy
| | - Laura Pagliari
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Udine, Italy
| | - Rita Musetti
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Udine, Italy
| | - Flavio Fornasier
- CREA Research Centre for Viticulture and Enology, Gorizia, Italy
| | - Marta Martini
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Udine, Italy
| | - Alberto Loschi
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Udine, Italy
| | - Maria Chiara Fontanella
- Department for Sustainable Process, Agricultural Faculty, Università Cattolica del Sacro Cuore, Piacenza, Italy
| | - Paolo Ermacora
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Udine, Italy
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Pommerrenig B, Diehn TA, Bernhardt N, Bienert MD, Mitani-Ueno N, Fuge J, Bieber A, Spitzer C, Bräutigam A, Ma JF, Chaumont F, Bienert GP. Functional evolution of nodulin 26-like intrinsic proteins: from bacterial arsenic detoxification to plant nutrient transport. THE NEW PHYTOLOGIST 2020; 225:1383-1396. [PMID: 31550387 DOI: 10.1111/nph.16217] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 09/17/2019] [Indexed: 05/18/2023]
Abstract
Nodulin 26-like intrinsic proteins (NIPs) play essential roles in transporting the nutrients silicon and boron in seed plants, but the evolutionary origin of this transport function and the co-permeability to toxic arsenic remains enigmatic. Horizontal gene transfer of a yet uncharacterised bacterial AqpN-aquaporin group was the starting-point for plant NIP evolution. We combined intense sequence, phylogenetic and genetic context analyses and a mutational approach with various transport assays in oocytes and plants to resolve the transorganismal and functional evolution of bacterial and algal and terrestrial plant NIPs and to reveal their molecular transport specificity features. We discovered that aqpN genes are prevalently located in arsenic resistance operons of various prokaryotic phyla. We provided genetic and functional evidence that these proteins contribute to the arsenic detoxification machinery. We identified NIPs with the ancestral bacterial AqpN selectivity filter composition in algae, liverworts, moss, hornworts and ferns and demonstrated that these archetype plant NIPs and their prokaryotic progenitors are almost impermeable to water and silicon but transport arsenic and boron. With a mutational approach, we demonstrated that during evolution, ancestral NIP selectivity shifted to allow subfunctionalisations. Together, our data provided evidence that evolution converted bacterial arsenic efflux channels into essential seed plant nutrient transporters.
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Affiliation(s)
- Benjamin Pommerrenig
- Department of Physiology and Cell Biology, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), 06466, Gatersleben, Germany
- Division of Plant Physiology, University Kaiserslautern, 67663, Kaiserslautern, Germany
| | - Till A Diehn
- Department of Physiology and Cell Biology, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), 06466, Gatersleben, Germany
| | - Nadine Bernhardt
- Genebank Department, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), 06466, Gatersleben, Germany
| | - Manuela D Bienert
- Department of Physiology and Cell Biology, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), 06466, Gatersleben, Germany
| | - Namiki Mitani-Ueno
- Institute of Plant Science and Resources, Okayama University, 710-0046, Kurashiki, Japan
| | - Jacqueline Fuge
- Department of Physiology and Cell Biology, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), 06466, Gatersleben, Germany
| | - Annett Bieber
- Department of Physiology and Cell Biology, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), 06466, Gatersleben, Germany
| | - Christoph Spitzer
- Department of Physiology and Cell Biology, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), 06466, Gatersleben, Germany
| | - Andrea Bräutigam
- Computational Biology, Faculty of Biology, Bielefeld University, 33615, Bielefeld, Germany
| | - Jian Feng Ma
- Institute of Plant Science and Resources, Okayama University, 710-0046, Kurashiki, Japan
| | - François Chaumont
- Louvain Institute of Biomolecular Science and Technology, UC Louvain, 1348, Louvain-la-Neuve, Belgium
| | - Gerd P Bienert
- Department of Physiology and Cell Biology, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), 06466, Gatersleben, Germany
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Hussain A, Tanveer R, Mustafa G, Farooq M, Amin I, Mansoor S. Comparative phylogenetic analysis of aquaporins provides insight into the gene family expansion and evolution in plants and their role in drought tolerant and susceptible chickpea cultivars. Genomics 2020; 112:263-275. [DOI: 10.1016/j.ygeno.2019.02.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 01/21/2019] [Accepted: 02/07/2019] [Indexed: 12/16/2022]
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Qin S, Liu Y, Han Y, Xu G, Wan S, Cui F, Li G. Aquaporins and their function in root water transport under salt stress conditions in Eutrema salsugineum. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2019; 287:110199. [PMID: 31481201 DOI: 10.1016/j.plantsci.2019.110199] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 07/07/2019] [Accepted: 07/22/2019] [Indexed: 05/21/2023]
Abstract
Eutrema salsugineum is considered as extremophile model species. To gain insights into the root hydraulic conductivity and the role played by aquaporins in E. salsugineum, we investigated the aquaporin family profiles, plant water status and root hydraulic conductivity under standard (salt-free) and salt stress conditions. We found that there was no variation in the relative electric conductivity of the leaves when the salt concentration was less than 200 mM NaCl, and the transpiration rate dropped to 60.6% at 100 mM NaCl for 14 days compared to that at standard conditions. The pressure chamber techniques indicated that the root hydraulic conductivity of E. salsugineum was repressed by salt stress. However, propionic acid, usually used as an aquaporin inhibitor, unexpectedly enhanced the root hydraulic conductivity of E. salsugineum. The aquaporin family in E. salsugineum was profiled and the PIP aquaporin expression was investigated at the transcriptional and translational levels. Finally, two EsPIPs were identified to play a role in salt stress. The overall study provides evidence on how halophytes maintain their water status and aquaporin regulation pattern under salt stress conditions.
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Affiliation(s)
- Shenghao Qin
- Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Jinan 250100, PR China; College of Life Science, Shandong Normal University, Jinan 250014, PR China
| | - Yiyang Liu
- Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Jinan 250100, PR China; College of Life Science, Shandong Normal University, Jinan 250014, PR China
| | - Yan Han
- Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Jinan 250100, PR China; College of Life Science, Shandong Normal University, Jinan 250014, PR China
| | - Guoxin Xu
- Shandong Rice Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, PR China
| | - Shubo Wan
- Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Jinan 250100, PR China
| | - Feng Cui
- Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Jinan 250100, PR China.
| | - Guowei Li
- Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Jinan 250100, PR China; College of Life Science, Shandong Normal University, Jinan 250014, PR China.
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Coskun D, Deshmukh R, Sonah H, Shivaraj SM, Frenette‐Cotton R, Tremblay L, Isenring P, Bélanger RR. Si permeability of a deficient Lsi1 aquaporin in tobacco can be enhanced through a conserved residue substitution. PLANT DIRECT 2019; 3:e00163. [PMID: 31453431 PMCID: PMC6702468 DOI: 10.1002/pld3.163] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 07/22/2019] [Accepted: 08/07/2019] [Indexed: 05/26/2023]
Abstract
Silicon (Si) is a beneficial substrate for many plants, conferring heightened resilience to environmental stress. A plant's ability to absorb Si is primarily dependent on the presence of a Si-permeable Lsi1 (NIP2-1) aquaporin in its roots. Structure-function analyses of Lsi1 channels from higher plants have thus far revealed two key molecular determinants of Si permeability: (a) the amino acid motif GSGR in the aromatic/arginine selectivity filter and (b) 108 amino acids between two highly conserved NPA domains. Curiously, tobacco (Nicotiana sylvestris) stands as a rare exception as it possesses an Lsi1 (NsLsi1) with these molecular signatures but is reported as a low Si accumulator. The aim of this study was therefore to identify whether additional determinants influence Si permeability via Lsi1 channels, focusing on the role of residues that differ uniquely in NsLsi1 relative to functional Lsi1 homologs. We observed tobacco indeed absorbed Si poorly (0.1% dw), despite NsLsi1 being expressed constitutively in planta. Si influx measured in NsLsi1-expressing Xenopus oocytes was very low (<13% that of OsLsi1 from rice (Oryza sativa) over a 3-hr time course), which likely explains why tobacco is a low Si accumulator. Interestingly, NsLsi1P125F displayed a significant gain of function (threefold increase in Si influx relative to NsLsi1WT), which coincided with a threefold increase in plasma membrane localization in planta, as measured by transient expression of GFP constructs in Nicotiana benthamiana leaves. These findings thus reveal a novel molecular determinant of Si transport in plants and inform breeding, biotechnological, and agricultural practices to effectively utilize Si in the context of plant resilience to environmental stress.
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Affiliation(s)
- Devrim Coskun
- Département de Phytologie, Faculté des Sciences de l’Agriculture et de l’Alimentation (FSAA)Université LavalQuébecQCCanada
| | - Rupesh Deshmukh
- Département de Phytologie, Faculté des Sciences de l’Agriculture et de l’Alimentation (FSAA)Université LavalQuébecQCCanada
- National Agri‐Food Biotechnology Institute (NABI)MohaliPunjabIndia
| | - Humira Sonah
- Département de Phytologie, Faculté des Sciences de l’Agriculture et de l’Alimentation (FSAA)Université LavalQuébecQCCanada
- National Agri‐Food Biotechnology Institute (NABI)MohaliPunjabIndia
| | - Sheelavanta Matha Shivaraj
- Département de Phytologie, Faculté des Sciences de l’Agriculture et de l’Alimentation (FSAA)Université LavalQuébecQCCanada
| | - Rachelle Frenette‐Cotton
- Nephrology Group, Department of Medicine, Faculty of Medicine, L’Hôtel‐Dieu de Québec InstitutionUniversité LavalQuébecQCCanada
| | - Laurence Tremblay
- Nephrology Group, Department of Medicine, Faculty of Medicine, L’Hôtel‐Dieu de Québec InstitutionUniversité LavalQuébecQCCanada
| | - Paul Isenring
- Nephrology Group, Department of Medicine, Faculty of Medicine, L’Hôtel‐Dieu de Québec InstitutionUniversité LavalQuébecQCCanada
| | - Richard R. Bélanger
- Département de Phytologie, Faculté des Sciences de l’Agriculture et de l’Alimentation (FSAA)Université LavalQuébecQCCanada
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Nawaz MA, Zakharenko AM, Zemchenko IV, Haider MS, Ali MA, Imtiaz M, Chung G, Tsatsakis A, Sun S, Golokhvast KS. Phytolith Formation in Plants: From Soil to Cell. PLANTS (BASEL, SWITZERLAND) 2019; 8:E249. [PMID: 31357485 PMCID: PMC6724085 DOI: 10.3390/plants8080249] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Revised: 07/22/2019] [Accepted: 07/23/2019] [Indexed: 01/19/2023]
Abstract
Silica is deposited extra- and intracellularly in plants in solid form, as phytoliths. Phytoliths have emerged as accepted taxonomic tools and proxies for reconstructing ancient flora, agricultural economies, environment, and climate. The discovery of silicon transporter genes has aided in the understanding of the mechanism of silicon transport and deposition within the plant body and reconstructing plant phylogeny that is based on the ability of plants to accumulate silica. However, a precise understanding of the process of silica deposition and the formation of phytoliths is still an enigma and the information regarding the proteins that are involved in plant biosilicification is still scarce. With the observation of various shapes and morphologies of phytoliths, it is essential to understand which factors control this mechanism. During the last two decades, significant research has been done in this regard and silicon research has expanded as an Earth-life science superdiscipline. We review and integrate the recent knowledge and concepts on the uptake and transport of silica and its deposition as phytoliths in plants. We also discuss how different factors define the shape, size, and chemistry of the phytoliths and how biosilicification evolved in plants. The role of channel-type and efflux silicon transporters, proline-rich proteins, and siliplant1 protein in transport and deposition of silica is presented. The role of phytoliths against biotic and abiotic stress, as mechanical barriers, and their use as taxonomic tools and proxies, is highlighted.
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Affiliation(s)
- Muhammad Amjad Nawaz
- Education and Scientific Center of Nanotechnology, Far Eastern Federal University, 690950 Vladivostok, Russia
| | | | | | - Muhammad Sajjad Haider
- Department of Forestry, College of Agriculture, University of Sargodha, 40100 Sargodha, Pakistan
| | - Muhammad Amjad Ali
- Department of Plant Pathology, University of Agriculture, 38040 Faisalabad, Pakistan
- Center of Agricultural Biochemistry and Biotechnology (CABB), University of Agriculture, 38040 Faisalabad, Pakistan
| | - Muhammad Imtiaz
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering, 38040 Faisalabad, Pakistan
| | - Gyuhwa Chung
- Department of Biotechnology, Chonnam National University, 59626 Yeosu-Si, Korea
| | - Aristides Tsatsakis
- Department of Toxicology and Forensics, School of Medicine, University of Crete, Heraklion GR-71003, Crete, Greece
| | - Sangmi Sun
- Department of Biotechnology, Chonnam National University, 59626 Yeosu-Si, Korea.
| | - Kirill Sergeyevich Golokhvast
- Education and Scientific Center of Nanotechnology, Far Eastern Federal University, 690950 Vladivostok, Russia.
- Pacific Geographical Institute, FEB RAS, 7 Radio street, Vladivostok 690014, Russia.
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Li W, Zhang D, Zhu G, Mi X, Guo W. Combining genome-wide and transcriptome-wide analyses reveal the evolutionary conservation and functional diversity of aquaporins in cotton. BMC Genomics 2019; 20:538. [PMID: 31262248 PMCID: PMC6604486 DOI: 10.1186/s12864-019-5928-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 06/23/2019] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Aquaporins (AQPs) are integral membrane proteins from a larger family of major intrinsic proteins (MIPs) and function in a huge variety of processes such as water transport, plant growth and stress response. The availability of the whole-genome data of different cotton species allows us to study systematic evolution and function of cotton AQPs on a genome-wide level. RESULTS Here, a total of 53, 58, 113 and 111 AQP genes were identified in G. arboreum, G. raimondii, G. hirsutum and G. barbadense, respectively. A comprehensive analysis of cotton AQPs, involved in exon/intron structure, functional domains, phylogenetic relationships and gene duplications, divided these AQPs into five subfamilies (PIP, NIP, SIP, TIP and XIP). Comparative genome analysis among 30 species from algae to angiosperm as well as common tandem duplication events in 24 well-studied plants further revealed the evolutionary conservation of AQP family in the organism kingdom. Combining transcriptome analysis and Quantitative Real-time PCR (qRT-PCR) verification, most AQPs exhibited tissue-specific expression patterns both in G. raimondii and G. hirsutum. Meanwhile, a bias of time to peak expression of several AQPs was also detected after treating G. davidsonii and G. hirsutum with 200 mM NaCl. It is interesting that both PIP1;4 h/i/j and PIP2;2a/e showed the highly conserved tandem structure, but differentially contributed to tissue development and stress response in different cotton species. CONCLUSIONS These results demonstrated that cotton AQPs were structural conservation while experienced the functional differentiation during the process of evolution and domestication. This study will further broaden our insights into the evolution and functional elucidation of AQP gene family in cotton.
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Affiliation(s)
- Weixi Li
- State Key Laboratory of Crop Genetics & Germplasm Enhancement, Engineering Research Center of Hybrid Cotton Development Ministry of Education, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, People's Republic of China
| | - Dayong Zhang
- State Key Laboratory of Crop Genetics & Germplasm Enhancement, Engineering Research Center of Hybrid Cotton Development Ministry of Education, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, People's Republic of China
| | - Guozhong Zhu
- State Key Laboratory of Crop Genetics & Germplasm Enhancement, Engineering Research Center of Hybrid Cotton Development Ministry of Education, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, People's Republic of China
| | - Xinyue Mi
- State Key Laboratory of Crop Genetics & Germplasm Enhancement, Engineering Research Center of Hybrid Cotton Development Ministry of Education, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, People's Republic of China
| | - Wangzhen Guo
- State Key Laboratory of Crop Genetics & Germplasm Enhancement, Engineering Research Center of Hybrid Cotton Development Ministry of Education, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, People's Republic of China.
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Khan S, Thomas BR, de la Mata R, Randall MJ, Zhang W, Zwiazek JJ. Variation in Aquaporin and Physiological Responses Among Pinus contorta Families Under Different Moisture Conditions. PLANTS 2019; 8:plants8010013. [PMID: 30621354 PMCID: PMC6359517 DOI: 10.3390/plants8010013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 12/22/2018] [Accepted: 12/31/2018] [Indexed: 01/05/2023]
Abstract
A population of eight open pollinated families of Pinus contorta was selected from sites varying in precipitation regimes and elevation to examine the possible role of aquaporins in adaptation to different moisture conditions. Five Pinus contorta aquaporins encoding PiconPIP2;1, PiconPIP2;2, PiconPIP2;3, PiconPIP1;2, and PiconTIP1;1 were cloned and detailed structural analyses were conducted to provide essential information that can explain their biological and molecular function. All five PiconAQPs contained hydrophilic aromatic/arginine selective filters to facilitate the transport of water. Transcript abundance patterns of PiconAQPs varied significantly across the P. contorta families under varying soil moisture conditions. The transcript abundance of five PiconPIPs remained unchanged under control and water-stress conditions in two families that originated from the sites with lower precipitation levels. These two families also displayed a different adaptive strategy of photosynthesis to cope with drought stress, which was manifested by reduced sensitivity in photosynthesis (maintaining the same rate) while exhibiting a reduction in stomatal conductance. In general, root:shoot ratios were not affected by drought stress, but some variation was observed between families. The results showed variability in drought coping mechanisms, including the expression of aquaporin genes and plant biomass allocation among eight families of Pinus contorta.
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Affiliation(s)
- Shanjida Khan
- Department of Renewable Resources, University of Alberta, 442 Earth Sciences Bldg., Edmonton, AB T6G 2E3, Canada.
| | - Barb R Thomas
- Department of Renewable Resources, University of Alberta, 442 Earth Sciences Bldg., Edmonton, AB T6G 2E3, Canada.
| | - Raul de la Mata
- Institut de Recerca i Tecnología Agroalimentàries (IRTA), Torre Marimon, 08140 Caldes de Montbui, Spain.
| | - Morgan J Randall
- Department of Renewable Resources, University of Alberta, 442 Earth Sciences Bldg., Edmonton, AB T6G 2E3, Canada.
| | - Wenqing Zhang
- Department of Renewable Resources, University of Alberta, 442 Earth Sciences Bldg., Edmonton, AB T6G 2E3, Canada.
| | - Janusz J Zwiazek
- Department of Renewable Resources, University of Alberta, 442 Earth Sciences Bldg., Edmonton, AB T6G 2E3, Canada.
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Routray P, Li T, Yamasaki A, Yoshinari A, Takano J, Choi WG, Sams CE, Roberts DM. Nodulin Intrinsic Protein 7;1 Is a Tapetal Boric Acid Channel Involved in Pollen Cell Wall Formation. PLANT PHYSIOLOGY 2018; 178:1269-1283. [PMID: 30266747 PMCID: PMC6236609 DOI: 10.1104/pp.18.00604] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 09/03/2018] [Indexed: 05/23/2023]
Abstract
Boron is an essential plant micronutrient that plays a structural role in the rhamnogalacturonan II component of the pectic cell wall. To prevent boron deficiency under limiting conditions, its uptake, distribution, and homeostasis are mediated by boric acid transporters and channel proteins. Among the membrane channels that facilitate boric acid uptake are the type II nodulin intrinsic protein (NIP) subfamily of aquaporin-like proteins. Arabidopsis (Arabidopsis thaliana) possesses three NIP II genes (NIP5;1, NIP6;1, and NIP7;1) that show distinct tissue expression profiles (predominantly expressed in roots, stem nodes, and developing flowers, respectively). Orthologs of each are represented in all dicots. Here, we show that purified and reconstituted NIP7;1 is a boric acid facilitator. By using native promoter-reporter fusions, we show that NIP7;1 is expressed predominantly in anthers of young flowers in a narrow developmental window, floral stages 9 and 10, with protein accumulation solely within tapetum cells, where it is localized to the plasma membrane. Under limiting boric acid conditions, loss-of-function T-DNA mutants (nip7;1-1 and nip7;1-2) show reduced fertility, including shorter siliques and an increase in aborted seeds, compared with the wild type. Under these conditions, nip7;1 mutant pollen grains show morphological defects, increased aggregation, defective exine cell wall formation, reduced germination frequency, and decreased viability. During stages 9 and 10, the tapetum is essential for supplying materials to the pollen microspore cell wall. We propose that NIP7;1 serves as a gated boric acid channel in developing anthers that aids in the uptake of this critical micronutrient by tapetal cells.
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Affiliation(s)
- Pratyush Routray
- Department of Biochemistry and Cellular and Molecular Biology and Program in Genome Science and Technology, University of Tennessee, Knoxville, Tennessee 37996
| | - Tian Li
- Department of Biochemistry and Cellular and Molecular Biology and Program in Genome Science and Technology, University of Tennessee, Knoxville, Tennessee 37996
| | - Arisa Yamasaki
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai-shi, Osaka 599-8531, Japan
| | - Akira Yoshinari
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai-shi, Osaka 599-8531, Japan
| | - Junpei Takano
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai-shi, Osaka 599-8531, Japan
| | - Won Gyu Choi
- Department of Biochemistry and Cellular and Molecular Biology and Program in Genome Science and Technology, University of Tennessee, Knoxville, Tennessee 37996
| | - Carl E Sams
- Department of Plant Sciences, University of Tennessee Institute of Agriculture, Knoxville, Tennessee 37996
| | - Daniel M Roberts
- Department of Biochemistry and Cellular and Molecular Biology and Program in Genome Science and Technology, University of Tennessee, Knoxville, Tennessee 37996
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Mateluna P, Salvatierra A, Solis S, Nuñez G, Pimentel P. Involvement of aquaporin NIP1;1 in the contrasting tolerance response to root hypoxia in Prunus rootstocks. JOURNAL OF PLANT PHYSIOLOGY 2018; 228:19-28. [PMID: 29842998 DOI: 10.1016/j.jplph.2018.05.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 05/04/2018] [Accepted: 05/05/2018] [Indexed: 06/08/2023]
Abstract
Prunus species have been classified as moderately sensitive to root hypoxia, but with a certain intrageneric tolerance degree to oxygen deficiency. Previously, RNA-seq analysis described the transcriptomic reconfiguration of two Prunus rootstocks contrasting to root hypoxia, which included the shift from aerobic to anaerobic metabolism. Here, we studied the relationship between lactate accumulation and the functionality of an aquaporin differentially expressed in 'Mariana 2624', a plum-based (Prunus cerasifera x Prunus munsoniana) rootstock tolerant to root hypoxia stress, and 'Mazzard F12/1', a cherry-based (Prunus avium) rootstock sensitive to root hypoxia stress. In the root hypoxia-sensitive rootstock, higher levels of lactate and LDH1 gene expression were found in roots exposed to oxygen deprivation. Concomitantly, we detected an increase in the mRNA abundance of Prunus spp. NIP1;1, a putative lactic acid transporter. Intriguingly, the high expression of PruavNIP1;1 is not linked to a lower lactic acid content in the roots of 'Mazzard F12/1'. To study this phenomenon, we calculated the force required for the transit of a lactic acid molecule through Prunus spp. NIP1;1 channels. Comparing the calculated forces, we identified steric hindrances in PruavNIP1;1 given by the residues Phe107 and Trp88 in the NPA region and ar/R filter, respectively. The functionality of both channels was corroborated by the restoration of the lactic acid transport and the differential lactic acid sensitive-phenotypes of the yeast strain Δjen1 complemented with PruavNIP1;1 and PrucxmNIP1;1. Our findings provide new insights into the mechanisms involved in determining hypoxia tolerance between closely related species, such as plum and cherry.
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Affiliation(s)
- Patricio Mateluna
- Centro de Estudios Avanzados en Fruticultura (CEAF), Camino Las Parcelas 882, km 105 Ruta 5 Sur, Sector Los Choapinos, Rengo, 2940000 Chile
| | - Ariel Salvatierra
- Centro de Estudios Avanzados en Fruticultura (CEAF), Camino Las Parcelas 882, km 105 Ruta 5 Sur, Sector Los Choapinos, Rengo, 2940000 Chile
| | - Simón Solis
- Centro de Estudios Avanzados en Fruticultura (CEAF), Camino Las Parcelas 882, km 105 Ruta 5 Sur, Sector Los Choapinos, Rengo, 2940000 Chile
| | - Gabriel Nuñez
- Escuela de Ingeniería Civil en Bioinformática, Centro de Bioinformática y Simulación Molecular, Universidad de Talca, Avenida Lircay s/n, Talca, Chile
| | - Paula Pimentel
- Centro de Estudios Avanzados en Fruticultura (CEAF), Camino Las Parcelas 882, km 105 Ruta 5 Sur, Sector Los Choapinos, Rengo, 2940000 Chile.
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Anupama A, Bhugra S, Lall B, Chaudhury S, Chugh A. Assessing the correlation of genotypic and phenotypic responses of indica rice varieties under drought stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2018; 127:343-354. [PMID: 29655154 DOI: 10.1016/j.plaphy.2018.04.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 04/03/2018] [Indexed: 06/08/2023]
Abstract
Drought is one of the severe abiotic stress that affects the productivity of rice, an important staple crop that is consumed all over the world. The traits responsible for enhancing or adapting drought resistance in rice plants can be selected and studied to improve their growth under stress conditions. Experiments have been conducted on indica rice varieties comprising Sahabhagidhan as drought tolerant variety and IR64, MTU1010 categorized as drought sensitive varieties. Various root related biochemical and morphological traits such as root length, relative water content (RWC), xylem number, xylem area, proline content, and malondialdehyde content have been investigated for a comparative study of the plant response to drought stress in different rice varieties. The results of differential root transcriptome analysis have revealed that there is a notable difference in gene expression of OsPIP2;5 and OsNIP2;1 in various indica varieties of rice at different time periods of stress. The present work aims at assessing the correlation between genotypic and phenotypic traits that can contribute towards the emerging field of rice phenomics.
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Affiliation(s)
- Anupama Anupama
- Kusuma School of Biological Sciences, Indian Institute of Technology, Delhi, New Delhi 110016, India.
| | - Swati Bhugra
- Department of Electrical Engineering, Indian Institute of Technology, Delhi, New Delhi 110016, India.
| | - Brejesh Lall
- Department of Electrical Engineering, Indian Institute of Technology, Delhi, New Delhi 110016, India.
| | - Santanu Chaudhury
- Department of Electrical Engineering, Indian Institute of Technology, Delhi, New Delhi 110016, India.
| | - Archana Chugh
- Kusuma School of Biological Sciences, Indian Institute of Technology, Delhi, New Delhi 110016, India.
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Merlaen B, De Keyser E, Van Labeke MC. Identification and substrate prediction of new Fragaria x ananassa aquaporins and expression in different tissues and during strawberry fruit development. HORTICULTURE RESEARCH 2018; 5:20. [PMID: 29619231 PMCID: PMC5880810 DOI: 10.1038/s41438-018-0019-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 12/15/2017] [Accepted: 01/11/2018] [Indexed: 05/07/2023]
Abstract
The newly identified aquaporin coding sequences presented here pave the way for further insights into the plant-water relations in the commercial strawberry (Fragaria x ananassa). Aquaporins are water channel proteins that allow water to cross (intra)cellular membranes. In Fragaria x ananassa, few of them have been identified hitherto, hampering the exploration of the water transport regulation at cellular level. Here, we present new aquaporin coding sequences belonging to different subclasses: plasma membrane intrinsic proteins subtype 1 and subtype 2 (PIP1 and PIP2) and tonoplast intrinsic proteins (TIP). The classification is based on phylogenetic analysis and is confirmed by the presence of conserved residues. Substrate-specific signature sequences (SSSSs) and specificity-determining positions (SDPs) predict the substrate specificity of each new aquaporin. Expression profiling in leaves, petioles and developing fruits reveals distinct patterns, even within the same (sub)class. Expression profiles range from leaf-specific expression over constitutive expression to fruit-specific expression. Both upregulation and downregulation during fruit ripening occur. Substrate specificity and expression profiles suggest that functional specialization exists among aquaporins belonging to a different but also to the same (sub)class.
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Affiliation(s)
- Britt Merlaen
- Plant Production, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Gent, Belgium
| | - Ellen De Keyser
- Flanders Research Institute for Agriculture Fisheries and Food (ILVO), Plant Sciences Unit, Caritasstraat 39, 9090 Melle, Belgium
| | - Marie-Christine Van Labeke
- Plant Production, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Gent, Belgium
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Fox AR, Maistriaux LC, Chaumont F. Toward understanding of the high number of plant aquaporin isoforms and multiple regulation mechanisms. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2017; 264:179-187. [PMID: 28969798 DOI: 10.1016/j.plantsci.2017.07.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 07/14/2017] [Accepted: 07/21/2017] [Indexed: 05/20/2023]
Abstract
Since the discovery of the first plant aquaporin (AQP) in 1993, our conception of the way plants control cell water homeostasis as well as their global water balance has been revisited. Plant AQPs constitute a large family of evolutionarily related channels that, in addition to water, can also facilitate the membrane diffusion of a number of small solutes, such as urea, CO2, H2O2, ammonia, metalloids, and even ions, indicating a wide range of cellular functions. At the cellular level, AQPs are subject to various regulation mechanisms leading to active/inactive channels in their target membranes. In this review, we discuss several specific questions that need to be addressed in future research. Why are so many different AQPs simultaneously expressed in specific cellular types? How is their selectivity to different solutes controlled (in particular in the case of multiple permeation properties)? What does the molecular interaction between AQPs and other molecules tell us about their regulation and their involvement in specific cellular and physiological processes? Resolving these questions will definitely help us better understand the physiological advantages that plants have to express and regulate so many AQP isoforms.
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Affiliation(s)
- Ana Romina Fox
- Institut des Sciences de la Vie, Université catholique de Louvain, Croix du Sud 4-L7.07.14, B-1348 Louvain-la-Neuve, Belgium
| | - Laurie C Maistriaux
- Institut des Sciences de la Vie, Université catholique de Louvain, Croix du Sud 4-L7.07.14, B-1348 Louvain-la-Neuve, Belgium
| | - François Chaumont
- Institut des Sciences de la Vie, Université catholique de Louvain, Croix du Sud 4-L7.07.14, B-1348 Louvain-la-Neuve, Belgium.
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Prediction of arsenic and antimony transporter major intrinsic proteins from the genomes of crop plants. Int J Biol Macromol 2017; 107:2630-2642. [PMID: 29080824 DOI: 10.1016/j.ijbiomac.2017.10.153] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 10/24/2017] [Accepted: 10/24/2017] [Indexed: 01/17/2023]
Abstract
Major intrinsic proteins (MIPs), commonly known as aquaporins, transport water and non-polar small solutes. Comparing the 3D models and the primary selectivity-related motifs (two Asn-Pro-Ala (NPA) regions, the aromatic/arginine (ar/R) selectivity filter, and Froger's positions (FPs)) of all plant MIPs that have been experimentally proven to transport arsenic (As) and antimony (Sb), some substrate-specific signature sequences (SSSS) or specificity determining sites (SDPs) have been predicted. These SSSS or SDPs were determined in 543 MIPs found in the genomes of 12 crop plants; the As and Sb transporters were predicted to be distributed in noduline-26 like intrinsic proteins (NIPs), and every plant had one or several As and Sb transporter NIPs. Phylogenetic grouping of the NIP subfamily based on the ar/R selectivity filter and FPs were linked to As and Sb transport. We further determined the group-wise substrate selectivity profiles of the NIPs in the 12 crop plants. In addition to two NPA regions, the ar/R filter, and FPs, certain amino acids especially in the pore line, loop D, and termini contribute to the functional distinctiveness of the NIP groups. Expression analysis of transcripts in different organs indicated that most of the As and Sb transporter NIPs were expressed in roots.
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Li L, An M, Qu C, Zheng Z, Wang Y, Liu F, He Y, He X, Miao J. Molecular cloning and expression analysis of major intrinsic protein gene in Chlamydomonas sp. ICE-L from Antarctica. Extremophiles 2017; 21:817-827. [PMID: 28597046 DOI: 10.1007/s00792-017-0945-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Accepted: 05/29/2017] [Indexed: 10/19/2022]
Abstract
Major intrinsic proteins (MIPs) form channels facilitating the passive transport of water and other small polar molecules across membranes. In this study, the complete open reading frame (ORF) of CiMIP1 (GenBank ID KY316061) encoding one kind of MIPs in the Antarctic ice microalga Chlamydomonas sp. ICE-L is successfully cloned using RACE. In addition, the expression patterns of CiMIP1 gene under different conditions of temperature and salinity are determined by qRT-PCR. The ORF of CiMIP1 gene encodes 308 amino acids, and the deduced amino acid sequence shows 74% homology with Chlamydomonas reinhardtii CrMIP1 (GenBank number 159471952). Phylogenetic analysis reveals that algal MIPs are divided into seven groups, and it is speculated that CiMIP1 most likely belongs to the MIPD subfamily. In addition, we are surprised to find that a third NPA motif exists at the carboxy terminus of the target protein except for two highly conserved ones. Expression analysis shows that the transcriptional levels of CiMIP1 gene are upregulated under either lower temperature or higher temperature and high salinity. In summary, the results together have provide new insights into the newly discovered gene in green algae and lay the foundation for further studies on the adaptation mechanism of Chlamydomonas sp. ICE-L to abiotic stresses.
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Affiliation(s)
- Lulu Li
- Key Laboratory of Marine Bioactive Substances, First Institute of Oceanography, State Oceanic Administration, Xianxialing Road 6th, Qingdao, 266061, China
| | - Meiling An
- Medical College, Qingdao University, Ningxia Road 308th, Qingdao, 266071, China
| | - Changfeng Qu
- Key Laboratory of Marine Bioactive Substances, First Institute of Oceanography, State Oceanic Administration, Xianxialing Road 6th, Qingdao, 266061, China
| | - Zhou Zheng
- Key Laboratory of Marine Bioactive Substances, First Institute of Oceanography, State Oceanic Administration, Xianxialing Road 6th, Qingdao, 266061, China
| | - Yibin Wang
- Key Laboratory of Marine Bioactive Substances, First Institute of Oceanography, State Oceanic Administration, Xianxialing Road 6th, Qingdao, 266061, China
| | - Fangming Liu
- Key Laboratory of Marine Bioactive Substances, First Institute of Oceanography, State Oceanic Administration, Xianxialing Road 6th, Qingdao, 266061, China
| | - Yingying He
- Key Laboratory of Marine Bioactive Substances, First Institute of Oceanography, State Oceanic Administration, Xianxialing Road 6th, Qingdao, 266061, China
| | - Xiaodong He
- Key Laboratory of Marine Bioactive Substances, First Institute of Oceanography, State Oceanic Administration, Xianxialing Road 6th, Qingdao, 266061, China
| | - Jinlai Miao
- Key Laboratory of Marine Bioactive Substances, First Institute of Oceanography, State Oceanic Administration, Xianxialing Road 6th, Qingdao, 266061, China. .,Medical College, Qingdao University, Ningxia Road 308th, Qingdao, 266071, China. .,Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China.
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Vatansever R, Ozyigit II, Filiz E, Gozukara N. Genome-wide exploration of silicon (Si) transporter genes, Lsi1 and Lsi2 in plants; insights into Si-accumulation status/capacity of plants. Biometals 2017; 30:185-200. [DOI: 10.1007/s10534-017-9992-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 01/09/2017] [Indexed: 01/18/2023]
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