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Rudgalvyte M, Atzei P, de Brito Francisco R, Naef R, Glauser DA. Dual-Acting Nitric Oxide Donor and Phosphodiesterase Inhibitor TOP-N53 Increases Lifespan and Health Span of Caenorhabditis elegans. MicroPubl Biol 2024; 2024:10.17912/micropub.biology.001090. [PMID: 38660564 PMCID: PMC11040393 DOI: 10.17912/micropub.biology.001090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 02/28/2024] [Accepted: 04/02/2024] [Indexed: 04/26/2024]
Abstract
The quest for extending lifespan and promoting a healthy aging has been a longstanding pursuit in the field of aging research. The control of aging and age-related diseases by nitric oxide (NO) and cGMP signaling is a broadly conserved process from worms to human. Here we show that TOP-N53, a dual-acting NO donor and PDE5 inhibitor, can increase both lifespan and health span in C. elegans .
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Affiliation(s)
- Martina Rudgalvyte
- Dept. Biology, University of Fribourg, Chemin du Musée 10, 1700 Fribourg, Switzerland
| | - Paola Atzei
- TOPADUR Pharma AG, Grabenstrasse 11A, 8952 Schlieren, Switzerland
| | | | - Reto Naef
- TOPADUR Pharma AG, Grabenstrasse 11A, 8952 Schlieren, Switzerland
| | - Dominique A. Glauser
- Dept. Biology, University of Fribourg, Chemin du Musée 10, 1700 Fribourg, Switzerland
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Kim Y, Ryu YC, Min HS, Yang H, Nam J, Lee C, Um DJ, Kim M, Atzei P, Francisco RDB, Naef R, Choi K, Jung H. Dual‐Mode Vasodilator M119 Delivery to Hair Follicle via Dissolving Microneedle for Advanced Alopecia Treatment (Adv. Therap. 8/2022). Advanced Therapeutics 2022. [DOI: 10.1002/adtp.202270018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Kim Y, Ryu YC, Min HS, Yang H, Nam J, Lee C, Um DJ, Kim M, Atzei P, Francisco RDB, Naef R, Choi K, Jung H. Dual‐Mode Vasodilator M119 Delivery to Hair Follicle via Dissolving Microneedle for Advanced Alopecia Treatment. Advanced Therapeutics 2022. [DOI: 10.1002/adtp.202200052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Youseong Kim
- Department of Biotechnology Building 123 Yonsei University 50 Yonsei‐ro Seodaemun‐gu Seoul 03722 Korea
| | - Yeong Chan Ryu
- Department of Biotechnology Building 123 Yonsei University 50 Yonsei‐ro Seodaemun‐gu Seoul 03722 Korea
| | - Hye Su Min
- Department of Biotechnology Building 123 Yonsei University 50 Yonsei‐ro Seodaemun‐gu Seoul 03722 Korea
| | - Huisuk Yang
- JUVIC 208Ho, 272 Digital‐ro Guro‐gu Seoul 08389 Republic of Korea
| | - Jeehye Nam
- Department of Biotechnology Building 123 Yonsei University 50 Yonsei‐ro Seodaemun‐gu Seoul 03722 Korea
| | - Chisong Lee
- Department of Biotechnology Building 123 Yonsei University 50 Yonsei‐ro Seodaemun‐gu Seoul 03722 Korea
| | - Daniel Junmin Um
- Department of Biotechnology Building 123 Yonsei University 50 Yonsei‐ro Seodaemun‐gu Seoul 03722 Korea
| | - Miji Kim
- Department of Biotechnology Building 123 Yonsei University 50 Yonsei‐ro Seodaemun‐gu Seoul 03722 Korea
| | - Paola Atzei
- TOPADUR Pharma AG Grabenstrasse 11A Schlieren 8952 Switzerland
| | | | - Reto Naef
- TOPADUR Pharma AG Grabenstrasse 11A Schlieren 8952 Switzerland
| | - Kang‐Yell Choi
- Department of Biotechnology Building 123 Yonsei University 50 Yonsei‐ro Seodaemun‐gu Seoul 03722 Korea
- CK Regeon Inc. Engineering Research Park Yonsei University 50 Yonsei‐ro Seodaemun‐gu Seoul 03722 Korea
| | - Hyungil Jung
- Department of Biotechnology Building 123 Yonsei University 50 Yonsei‐ro Seodaemun‐gu Seoul 03722 Korea
- JUVIC 208Ho, 272 Digital‐ro Guro‐gu Seoul 08389 Republic of Korea
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Biała-Leonhard W, Zanin L, Gottardi S, de Brito Francisco R, Venuti S, Valentinuzzi F, Mimmo T, Cesco S, Bassin B, Martinoia E, Pinton R, Jasiński M, Tomasi N. Identification of an Isoflavonoid Transporter Required for the Nodule Establishment of the Rhizobium- Fabaceae Symbiotic Interaction. Front Plant Sci 2021; 12:758213. [PMID: 34745190 PMCID: PMC8570342 DOI: 10.3389/fpls.2021.758213] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 09/15/2021] [Indexed: 05/27/2023]
Abstract
Nitrogen (N) as well as Phosphorus (P) are key nutrients determining crop productivity. Legumes have developed strategies to overcome nutrient limitation by, for example, forming a symbiotic relationship with N-fixing rhizobia and the release of P-mobilizing exudates and are thus able to grow without supply of N or P fertilizers. The legume-rhizobial symbiosis starts with root release of isoflavonoids that act as signaling molecules perceived by compatible bacteria. Subsequently, bacteria release nod factors, which induce signaling cascades allowing the formation of functional N-fixing nodules. We report here the identification and functional characterization of a plasma membrane-localized MATE-type transporter (LaMATE2) involved in the release of genistein from white lupin roots. The LaMATE2 expression in the root is upregulated under N deficiency as well as low phosphate availability, two nutritional deficiencies that induce the release of this isoflavonoid. LaMATE2 silencing reduced genistein efflux and even more the formation of symbiotic nodules, supporting the crucial role of LaMATE2 in isoflavonoid release and nodulation. Furthermore, silencing of LaMATE2 limited the P-solubilization activity of lupin root exudates. Transport assays in yeast vesicles demonstrated that LaMATE2 acts as a proton-driven isoflavonoid transporter.
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Affiliation(s)
- Wanda Biała-Leonhard
- Department of Plant Molecular Physiology, Polish Academy of Sciences, Institute of Bioorganic Chemistry, Poznań, Poland
| | - Laura Zanin
- Dipartimento di Scienze Agro-Alimentari, Ambientali e Animali, University of Udine, Udine, Italy
| | - Stefano Gottardi
- Dipartimento di Scienze Agro-Alimentari, Ambientali e Animali, University of Udine, Udine, Italy
| | | | - Silvia Venuti
- Dipartimento di Scienze Agro-Alimentari, Ambientali e Animali, University of Udine, Udine, Italy
| | - Fabio Valentinuzzi
- Dipartimento di Scienze Agro-Alimentari, Ambientali e Animali, University of Udine, Udine, Italy
- Faculty of Science and Technology, Free University of Bozen Bolzano, Bolzano, Italy
| | - Tanja Mimmo
- Faculty of Science and Technology, Free University of Bozen Bolzano, Bolzano, Italy
| | - Stefano Cesco
- Faculty of Science and Technology, Free University of Bozen Bolzano, Bolzano, Italy
| | - Barbara Bassin
- Institute of Plant and Microbial Biology, University of Zurich, Zurich, Switzerland
| | - Enrico Martinoia
- Institute of Plant and Microbial Biology, University of Zurich, Zurich, Switzerland
- International Research Center for Environmental Membrane Biology, Foshan University, Foshan, China
| | - Roberto Pinton
- Dipartimento di Scienze Agro-Alimentari, Ambientali e Animali, University of Udine, Udine, Italy
| | - Michał Jasiński
- Department of Plant Molecular Physiology, Polish Academy of Sciences, Institute of Bioorganic Chemistry, Poznań, Poland
- Department of Biochemistry and Biotechnology, Poznań University of Life Sciences, Poznań, Poland
| | - Nicola Tomasi
- Dipartimento di Scienze Agro-Alimentari, Ambientali e Animali, University of Udine, Udine, Italy
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Demurtas OC, de Brito Francisco R, Martinoia E, Giuliano G. Transportomics for the Characterization of Plant Apocarotenoid Transmembrane Transporters. Methods Mol Biol 2020; 2083:89-99. [PMID: 31745915 DOI: 10.1007/978-1-4939-9952-1_7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Abstract
Apocarotenoids are carotenoid derivatives produced by the nonenzymatic or enzymatic cleavage of carotenoids, followed by different enzymatic modifications. In plants, apocarotenoids play different roles, such as attraction of pollinators and seeds dispersal, defense against pathogens and herbivores, protection against photo-oxidative stresses, stimulation and inhibition of plant growth and regulation of biological processes in the case of phytohormones abscisic acid and strigolactones. While carotenoids are in general plastid-localized metabolites, apocarotenoids can reach different final destinations inside or outside the cell. The mechanisms of apocarotenoid transport through biological membranes have been poorly studied. This chapter describes a method to characterize transmembrane transporters involved in the transport of polar and amphipathic apocarotenoids. This protocol was successfully used to in vitro characterize the transport activity of ATP-binding cassette (ABC) and multidrug and toxic extrusion (MATE) in microsomes isolated from Saccharomyces cerevisiae expressing these plant transporters.
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Affiliation(s)
- Olivia Costantina Demurtas
- ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, C.R. Casaccia, Rome, Italy
| | | | - Enrico Martinoia
- Department of Plant and Microbial Biology, University of Zurich, Zurich, Switzerland
| | - Giovanni Giuliano
- ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, C.R. Casaccia, Rome, Italy.
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Demurtas OC, de Brito Francisco R, Diretto G, Ferrante P, Frusciante S, Pietrella M, Aprea G, Borghi L, Feeney M, Frigerio L, Coricello A, Costa G, Alcaro S, Martinoia E, Giuliano G. ABCC Transporters Mediate the Vacuolar Accumulation of Crocins in Saffron Stigmas. Plant Cell 2019; 31:2789-2804. [PMID: 31548254 PMCID: PMC6881118 DOI: 10.1105/tpc.19.00193] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 06/25/2019] [Accepted: 09/12/2019] [Indexed: 05/10/2023]
Abstract
Compartmentation is a key strategy enacted by plants for the storage of specialized metabolites. The saffron spice owes its red color to crocins, a complex mixture of apocarotenoid glycosides that accumulate in intracellular vacuoles and reach up to 10% of the spice dry weight. We developed a general approach, based on coexpression analysis, heterologous expression in yeast (Saccharomyces cerevisiae), and in vitro transportomic assays using yeast microsomes and total plant metabolite extracts, for the identification of putative vacuolar metabolite transporters, and we used it to identify Crocus sativus transporters mediating vacuolar crocin accumulation in stigmas. Three transporters, belonging to both the multidrug and toxic compound extrusion and ATP binding cassette C (ABCC) families, were coexpressed with crocins and/or with the gene encoding the first dedicated enzyme in the crocin biosynthetic pathway, CsCCD2. Two of these, belonging to the ABCC family, were able to mediate transport of several crocins when expressed in yeast microsomes. CsABCC4a was selectively expressed in C. sativus stigmas, was predominantly tonoplast localized, transported crocins in vitro in a stereospecific and cooperative way, and was able to enhance crocin accumulation when expressed in Nicotiana benthamiana leaves.plantcell;31/11/2789/FX1F1fx1.
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Affiliation(s)
- Olivia Costantina Demurtas
- ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, C.R. Casaccia, 00123, Rome, Italy
| | | | - Gianfranco Diretto
- ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, C.R. Casaccia, 00123, Rome, Italy
| | - Paola Ferrante
- ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, C.R. Casaccia, 00123, Rome, Italy
| | - Sarah Frusciante
- ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, C.R. Casaccia, 00123, Rome, Italy
| | - Marco Pietrella
- ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, C.R. Casaccia, 00123, Rome, Italy
- Council for Agricultural Research and Economics (CREA), Research Center for Olive, Citrus and Tree Fruit, 47121 Forlì, Italy
| | - Giuseppe Aprea
- ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, C.R. Casaccia, 00123, Rome, Italy
| | - Lorenzo Borghi
- Department of Plant and Microbial Biology, University of Zurich, 8008 Zurich, Switzerland
| | - Mistianne Feeney
- School of Life Sciences, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Lorenzo Frigerio
- School of Life Sciences, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Adriana Coricello
- Department of Health Sciences, Magna Græcia University of Catanzaro, 88100 Catanzaro, Italy
| | - Giosuè Costa
- Department of Health Sciences, Magna Græcia University of Catanzaro, 88100 Catanzaro, Italy
| | - Stefano Alcaro
- Department of Health Sciences, Magna Græcia University of Catanzaro, 88100 Catanzaro, Italy
| | - Enrico Martinoia
- Department of Plant and Microbial Biology, University of Zurich, 8008 Zurich, Switzerland
| | - Giovanni Giuliano
- ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, C.R. Casaccia, 00123, Rome, Italy
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Schaufelberger M, Galbier F, Herger A, de Brito Francisco R, Roffler S, Clement G, Diet A, Hörtensteiner S, Wicker T, Ringli C. Mutations in the Arabidopsis ROL17/isopropylmalate synthase 1 locus alter amino acid content, modify the TOR network, and suppress the root hair cell development mutant lrx1. J Exp Bot 2019; 70:2313-2323. [PMID: 30753668 PMCID: PMC6463047 DOI: 10.1093/jxb/ery463] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 12/19/2018] [Indexed: 05/22/2023]
Abstract
The growth and development of organisms must be tightly controlled and adjusted to nutrient availability and metabolic activities. The Target of Rapamycin (TOR) network is a major control mechanism in eukaryotes and influences processes such as translation, mitochondrial activity, production of reactive oxygen species, and the cytoskeleton. In Arabidopsis thaliana, inhibition of the TOR kinase causes changes in cell wall architecture and suppression of phenotypic defects of the cell wall formation mutant lrx1 (leucine-rich repeat extensin 1). The rol17 (repressor of lrx1 17) mutant was identified as a new suppressor of lrx1 that induces also a short root phenotype. The ROL17 locus encodes isopropylmalate synthase 1, a protein involved in leucine biosynthesis. Dependent on growth conditions, mutations in ROL17 do not necessarily alter the level of leucine, but always cause development of the rol17 mutant phenotypes, suggesting that the mutation does not only influence leucine biosynthesis. Changes in the metabolome of rol17 mutants are also found in plants with inhibited TOR kinase activity. Furthermore, rol17 mutants show reduced sensitivity to the TOR kinase inhibitor AZD-8055, indicating a modified TOR network. Together, these data suggest that suppression of lrx1 by rol17 is the result of an alteration of the TOR network.
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Affiliation(s)
- Myriam Schaufelberger
- Institute of Plant and Microbial Biology, Zurich-Basel Plant Science Center, University of Zurich, Zurich, Switzerland
| | - Florian Galbier
- Institute of Plant and Microbial Biology, Zurich-Basel Plant Science Center, University of Zurich, Zurich, Switzerland
- Institute of Molecular Plant Biology, Zurich-Basel Plant Science Center, Zurich, Switzerland
| | - Aline Herger
- Institute of Plant and Microbial Biology, Zurich-Basel Plant Science Center, University of Zurich, Zurich, Switzerland
| | - Rita de Brito Francisco
- Institute of Plant and Microbial Biology, Zurich-Basel Plant Science Center, University of Zurich, Zurich, Switzerland
| | - Stefan Roffler
- Institute of Plant and Microbial Biology, Zurich-Basel Plant Science Center, University of Zurich, Zurich, Switzerland
| | - Gilles Clement
- Institute of Plant and Microbial Biology, Zurich-Basel Plant Science Center, University of Zurich, Zurich, Switzerland
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay, Versailles, France
| | - Anouck Diet
- Institute of Plant Sciences Paris-Saclay, CNRS, Université Paris Diderot, INRA, Université Paris Sud, Université d’Evry, Université Paris-Saclay, Rue de Noetzlin, Gif-sur-Yvette, France
| | - Stefan Hörtensteiner
- Institute of Plant and Microbial Biology, Zurich-Basel Plant Science Center, University of Zurich, Zurich, Switzerland
| | - Thomas Wicker
- Institute of Plant and Microbial Biology, Zurich-Basel Plant Science Center, University of Zurich, Zurich, Switzerland
| | - Christoph Ringli
- Institute of Plant and Microbial Biology, Zurich-Basel Plant Science Center, University of Zurich, Zurich, Switzerland
- Correspondence:
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Moles TM, de Brito Francisco R, Mariotti L, Pompeiano A, Lupini A, Incrocci L, Carmassi G, Scartazza A, Pistelli L, Guglielminetti L, Pardossi A, Sunseri F, Hörtensteiner S, Santelia D. Salinity in Autumn-Winter Season and Fruit Quality of Tomato Landraces. Front Plant Sci 2019; 10:1078. [PMID: 31611885 PMCID: PMC6769068 DOI: 10.3389/fpls.2019.01078] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Accepted: 08/07/2019] [Indexed: 05/02/2023]
Abstract
Tomato landraces, originated by adaptive responses to local habitats, are considered a valuable resource for many traits of agronomic interest, including fruit nutritional quality. Primary and secondary metabolites are essential determinants of fruit organoleptic quality, and some of them, such as carotenoids and phenolics, have been associated with beneficial proprieties for human health. Landraces' fruit taste and flavour are often preferred by consumers compared to the commercial varieties' ones. In an autumn-winter greenhouse hydroponic experiment, the response of three Southern-Italy tomato landraces (Ciettaicale, Linosa and Corleone) and one commercial cultivar (UC-82B) to different concentrations of sodium chloride (0 mM, 60 mM or 120 mM NaCl) were evaluated. At harvest, no losses in marketable yield were noticed in any of the tested genotypes. However, under salt stress, fresh fruit yield as well as fruit calcium concentration were higher affected in the commercial cultivar than in the landraces. Furthermore, UC-82B showed a trend of decreasing lycopene and total antioxidant capacity with increasing salt concentration, whereas no changes in these parameters were observed in the landraces under 60 mM NaCl. Landraces under 120 mM NaCl accumulated more fructose and glucose in the fruits, while salt did not affect hexoses levels in UC-82B. Ultra-performance liquid chromatography-tandem mass spectrometry analysis revealed differential accumulation of glycoalkaloids, phenolic acids, flavonoids and their derivatives in the fruits of all genotypes under stress. Overall, the investigated Italian landraces showed a different behaviour compared to the commercial variety UC-82B under moderate salinity stress, showing a tolerable compromise between yield and quality attributes. Our results point to the feasible use of tomato landraces as a target to select interesting genetic traits to improve fruit quality under stress conditions.
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Affiliation(s)
- Tommaso Michele Moles
- Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy
- Institute of Integrative Biology, ETH Zürich, Zürich, Switzerland
- *Correspondence: Tommaso Michele Moles, ; Rita de Brito Francisco, ; Lorenzo Mariotti,
| | - Rita de Brito Francisco
- Department of Plant and Microbial Biology, University of Zürich, Zürich, Switzerland
- *Correspondence: Tommaso Michele Moles, ; Rita de Brito Francisco, ; Lorenzo Mariotti,
| | - Lorenzo Mariotti
- Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy
- *Correspondence: Tommaso Michele Moles, ; Rita de Brito Francisco, ; Lorenzo Mariotti,
| | - Antonio Pompeiano
- International Clinical Research Centre, St. Anne’s University Hospital, Brno, Czechia
- Central European Institute of Technology, Brno University of Technology, Brno, Czechia
| | - Antonio Lupini
- Department of Agraria, University Mediterranea of Reggio Calabria, Reggio Calabria, Italy
| | - Luca Incrocci
- Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy
| | - Giulia Carmassi
- Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy
| | - Andrea Scartazza
- Institute of Research on Terrestrial Ecosystems, National Research Council, Pisa, Italy
| | - Laura Pistelli
- Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy
| | | | - Alberto Pardossi
- Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy
| | - Francesco Sunseri
- Department of Agraria, University Mediterranea of Reggio Calabria, Reggio Calabria, Italy
| | - Stefan Hörtensteiner
- Department of Plant and Microbial Biology, University of Zürich, Zürich, Switzerland
| | - Diana Santelia
- Institute of Integrative Biology, ETH Zürich, Zürich, Switzerland
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Borghi L, Kang J, de Brito Francisco R. Filling the Gap: Functional Clustering of ABC Proteins for the Investigation of Hormonal Transport in planta. Front Plant Sci 2019; 10:422. [PMID: 31057565 PMCID: PMC6479136 DOI: 10.3389/fpls.2019.00422] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 03/20/2019] [Indexed: 05/09/2023]
Abstract
Plant hormones regulate a myriad of plant processes, from seed germination to reproduction, from complex organ development to microelement uptake. Much has been discovered on the factors regulating the activity of phytohormones, yet there are gaps in knowledge about their metabolism, signaling as well as transport. In this review we analyze the potential of the characterized phytohormonal transporters belonging to the ATP-Binding Cassette family (ABC proteins), thus to identify new candidate orthologs in model plants and species important for human health and food production. Previous attempts with phylogenetic analyses on transporters belonging to the ABC family suggested that sequence homology per se is not a powerful tool for functional characterization. However, we show here that sequence homology might indeed support functional conservation of characterized members of different classes of ABC proteins in several plant species, e.g., in the case of ABC class G transporters of strigolactones and ABC class B transporters of auxinic compounds. Also for the low-affinity, vacuolar abscisic acid (ABA) transporters belonging to the ABCC class we show that localization-, rather than functional-clustering occurs, possibly because of sequence conservation for targeting the tonoplast. The ABC proteins involved in pathogen defense are phylogenetically neighboring despite the different substrate identities, suggesting that sequence conservation might play a role in their activation/induction after pathogen attack. Last but not least, in case of the multiple lipid transporters belong to different ABC classes, we focused on ABC class D proteins, reported to transport/affect the synthesis of hormonal precursors. Based on these results, we propose that phylogenetic approaches followed by transport bioassays and in vivo investigations might accelerate the discovery of new hormonal transport routes and allow the designing of transgenic and genome editing approaches, aimed to improve our knowledge on plant development, plant-microbe symbioses, plant nutrient uptake and plant stress resistance.
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de Brito Francisco R, Martinoia E. The Vacuolar Transportome of Plant Specialized Metabolites. Plant Cell Physiol 2018; 59:1326-1336. [PMID: 29452376 DOI: 10.1093/pcp/pcy039] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 02/05/2018] [Indexed: 05/21/2023]
Abstract
The plant vacuole is a cellular compartment that is essential to plant development and growth. Often plant vacuoles accumulate specialized metabolites, also called secondary metabolites, which constitute functionally and chemically diverse compounds that exert in planta many essential functions and improve the plant's fitness. These metabolites provide, for example, chemical defense against herbivorous and pathogens or chemical attractants (color and fragrance) to attract pollinators. The chemical composition of the vacuole is dynamic, and is altered during development and as a response to environmental changes. To some extent these alterations rely on vacuolar transporters, which import and export compounds into and out of the vacuole, respectively. During the past decade, significant progress was made in the identification and functional characterization of the transporters implicated in many aspects of plant specialized metabolism. Still, deciphering the molecular players underlying such processes remains a challenge for the future. In this review, we present a comprehensive summary of the most recent achievements in this field.
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Affiliation(s)
| | - Enrico Martinoia
- Department of Plant and Microbial Biology, University of Zürich, Zürich, Switzerland
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Liu G, Pfeifer J, de Brito Francisco R, Emonet A, Stirnemann M, Gübeli C, Hutter O, Sasse J, Mattheyer C, Stelzer E, Walter A, Martinoia E, Borghi L. Changes in the allocation of endogenous strigolactone improve plant biomass production on phosphate-poor soils. New Phytol 2018; 217:784-798. [PMID: 29083039 PMCID: PMC5765447 DOI: 10.1111/nph.14847] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 09/05/2017] [Indexed: 05/11/2023]
Abstract
Strigolactones (SLs) are carotenoid-derived phytohormones shaping plant architecture and inducing the symbiosis with endomycorrhizal fungi. In Petunia hybrida, SL transport within the plant and towards the rhizosphere is driven by the ABCG-class protein PDR1. PDR1 expression is regulated by phytohormones and by the soil phosphate abundance, and thus SL transport integrates plant development with nutrient conditions. We overexpressed PDR1 (PDR1 OE) to investigate whether increased endogenous SL transport is sufficient to improve plant nutrition and productivity. Phosphorus quantification and nondestructive X-ray computed tomography were applied. Morphological and gene expression changes were quantified at cellular and whole tissue levels via time-lapse microscopy and quantitative PCR. PDR1 OE significantly enhanced phosphate uptake and plant biomass production on phosphate-poor soils. PDR1 OE plants showed increased lateral root formation, extended root hair elongation, faster mycorrhization and reduced leaf senescence. PDR1 overexpression allowed considerable SL biosynthesis by releasing SL biosynthetic genes from an SL-dependent negative feedback. The increased endogenous SL transport/biosynthesis in PDR1 OE plants is a powerful tool to improve plant growth on phosphate-poor soils. We propose PDR1 as an as yet unexplored trait to be investigated for crop production. The overexpression of PDR1 is a valuable strategy to investigate SL functions and transport routes.
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Affiliation(s)
- Guowei Liu
- Department of Plant and Microbial BiologyUniversity of ZurichZollikerstrasse 107Zurich8008Switzerland
| | - Johannes Pfeifer
- Institute of Agricultural SciencesETH ZurichUniversitätstrasse 2Zurich8092Switzerland
| | - Rita de Brito Francisco
- Department of Plant and Microbial BiologyUniversity of ZurichZollikerstrasse 107Zurich8008Switzerland
| | - Aurelia Emonet
- Département de Biologie Moléculaire VégétaleFaculté de Biologie et MédecineBiophoreLausanneCH‐1015Switzerland
| | - Marina Stirnemann
- Department of Plant and Microbial BiologyUniversity of ZurichZollikerstrasse 107Zurich8008Switzerland
| | - Christian Gübeli
- Department of Plant and Microbial BiologyUniversity of ZurichZollikerstrasse 107Zurich8008Switzerland
| | - Olivier Hutter
- Department of Plant and Microbial BiologyUniversity of ZurichZollikerstrasse 107Zurich8008Switzerland
| | - Joëlle Sasse
- Carnegie Institution for Science1530 P Street NWWashingtonDC20005USA
| | - Christian Mattheyer
- Goethe‐Universität Frankfurt am MainTheodor‐W.‐Adorno‐Platz 1Frankfurt am Main60323Germany
| | - Ernst Stelzer
- Goethe‐Universität Frankfurt am MainTheodor‐W.‐Adorno‐Platz 1Frankfurt am Main60323Germany
| | - Achim Walter
- Institute of Agricultural SciencesETH ZurichUniversitätstrasse 2Zurich8092Switzerland
| | - Enrico Martinoia
- Department of Plant and Microbial BiologyUniversity of ZurichZollikerstrasse 107Zurich8008Switzerland
| | - Lorenzo Borghi
- Department of Plant and Microbial BiologyUniversity of ZurichZollikerstrasse 107Zurich8008Switzerland
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