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Barbier F, Fichtner F, Beveridge C. The strigolactone pathway plays a crucial role in integrating metabolic and nutritional signals in plants. Nat Plants 2023; 9:1191-1200. [PMID: 37488268 DOI: 10.1038/s41477-023-01453-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 05/24/2023] [Indexed: 07/26/2023]
Abstract
Strigolactones are rhizosphere signals and phytohormones that play crucial roles in plant development. They are also well known for their role in integrating nitrate and phosphate signals to regulate shoot and root development. More recently, sugars and citrate (an intermediate of the tricarboxylic acid cycle) were reported to inhibit the strigolactone response, with dramatic effects on shoot architecture. This Review summarizes the discoveries recently made concerning the mechanisms through which the strigolactone pathway integrates sugar, metabolite and nutrient signals. We highlight here that strigolactones and MAX2-dependent signalling play crucial roles in mediating the impacts of nutritional and metabolic cues on plant development and metabolism. We also discuss and speculate concerning the role of these interactions in plant evolution and adaptation to their environment.
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Affiliation(s)
- Francois Barbier
- School of Biological Sciences, University of Queensland, St Lucia, Queensland, Australia.
- ARC Centre of Excellence for Plant Success in Nature and Agriculture, University of Queensland, St Lucia, Queensland, Australia.
| | - Franziska Fichtner
- Institute of Plant Biochemistry, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Christine Beveridge
- School of Biological Sciences, University of Queensland, St Lucia, Queensland, Australia
- ARC Centre of Excellence for Plant Success in Nature and Agriculture, University of Queensland, St Lucia, Queensland, Australia
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Salam BB, Barbier F, Danieli R, Teper-Bamnolker P, Ziv C, Spíchal L, Aruchamy K, Shnaider Y, Leibman D, Shaya F, Carmeli-Weissberg M, Gal-On A, Jiang J, Ori N, Beveridge C, Eshel D. Sucrose promotes stem branching through cytokinin. Plant Physiol 2021; 185:1708-1721. [PMID: 33793932 PMCID: PMC8133652 DOI: 10.1093/plphys/kiab003] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 12/16/2020] [Indexed: 05/23/2023]
Abstract
Shoot branching is an important aspect of plant architecture because it substantially affects plant biology and agricultural performance. Sugars play an important role in the induction of shoot branching in several species, including potato (Solanum tuberosum L.). However, the mechanism by which sugars affect shoot branching remains mostly unknown. In the present study, we addressed this question using sugar-mediated induction of bud outgrowth in potato stems under etiolated conditions. Our results indicate that sucrose feeding to detached stems promotes the accumulation of cytokinin (CK), as well as the expression of vacuolar invertase (VInv), an enzyme that contributes to sugar sink strength. These effects of sucrose were suppressed by CK synthesis and perception inhibitors, while CK supplied to detached stems induced bud outgrowth and VInv activity in the absence of sucrose. CK-induced bud outgrowth was suppressed in vinv mutants, which we generated by genome editing. Altogether, our results identify a branching-promoting module, and suggest that sugar-induced lateral bud outgrowth is in part promoted by the induction of CK-mediated VInv activity.
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Affiliation(s)
- Bolaji Babajide Salam
- Department of Postharvest Science, The Volcani Center, ARO, Rishon LeZion, Israel
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, Robert H. Smith Faculty of Agriculture, Food and Environment, Rehovot, Israel
| | - Francois Barbier
- The University of Queensland, School of Biological Sciences, St. Lucia, QLD 4072, Australia
| | - Raz Danieli
- Department of Postharvest Science, The Volcani Center, ARO, Rishon LeZion, Israel
| | | | - Carmit Ziv
- Department of Postharvest Science, The Volcani Center, ARO, Rishon LeZion, Israel
| | - Lukáš Spíchal
- Centre of the Region Haná for Biotechnological and Agricultural Research, Palacký University in Olomouc, Czech Republic (L.S.)
| | - Kalaivani Aruchamy
- Department of Postharvest Science, The Volcani Center, ARO, Rishon LeZion, Israel
| | - Yula Shnaider
- Department of Plant Pathology and Weed Research, The Volcani Center, ARO, Rishon LeZion, Israel
| | - Diana Leibman
- Department of Plant Pathology and Weed Research, The Volcani Center, ARO, Rishon LeZion, Israel
| | - Felix Shaya
- Department of Fruit Tree Sciences, The Volcani Center, ARO, Rishon LeZion, Israel
| | | | - Amit Gal-On
- Department of Plant Pathology and Weed Research, The Volcani Center, ARO, Rishon LeZion, Israel
| | - Jiming Jiang
- Department of Horticulture, Michigan State University, East Lansing, MI 48824, USA
| | - Naomi Ori
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, Robert H. Smith Faculty of Agriculture, Food and Environment, Rehovot, Israel
| | - Christine Beveridge
- The University of Queensland, School of Biological Sciences, St. Lucia, QLD 4072, Australia
| | - Dani Eshel
- Department of Postharvest Science, The Volcani Center, ARO, Rishon LeZion, Israel
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Laudicella VA, Beveridge C, Carboni S, Franco SC, Doherty MK, Long N, Mitchell E, Stanley MS, Whitfield PD, Hughes AD. Lipidomics analysis of juveniles' blue mussels (Mytilus edulis L. 1758), a key economic and ecological species. PLoS One 2020; 15:e0223031. [PMID: 32084137 PMCID: PMC7034892 DOI: 10.1371/journal.pone.0223031] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 01/28/2020] [Indexed: 02/07/2023] Open
Abstract
Blue mussels (Mytilus edulis L. 1758) are important components of coastal ecosystems and in the economy of rural and coastal areas. The understanding of their physiological processes at key life stages is important both within food production systems and in the management of wild populations. Lipids are crucial molecules for bivalve growth, but their diversity and roles have not been fully characterised. In this study, traditional lipid profiling techniques, such as fatty acid (FA) and lipid class analysis, are combined to untargeted lipidomics to elucidate the lipid metabolism in newly settled spat fed on a range of diets. The evaluated diets included single strains treatments (Cylindrotheca fusiformis CCAP 1017/2 -CYL, Isochrysis galbana CCAP 927/1- ISO, Monodopsis subterranean CCAP 848/1 -MONO, Nannochloropsis oceanica CCAP 849/10- NANNO) and a commercial algae paste (SP). Spat growth was influenced by the diets, which, according to their efficacy were ranked as follows: ISO>NANNO/CYL>SP>MONO. A higher triacylglycerols (TG) content, ranging from 4.23±0.82 μg mgashfree Dry weight (DW)-1 at the beginning of the trial (T0) to 51±15.3 μg mgashfreeDW-1 in ISO, characterised significant growth in the spat, whereas, a reduction of TG (0.3±0.08 μg mgashfreeDW-1 in MONO), mono unsaturated FA-MUFA (from 8.52±1.02 μg mgFAashfreeDW-1 at T0 to 2.81±1.02 μg mgFAashfreeDW-1 in MONO) and polyunsaturated FA-PUFA (from 17.57±2.24 μg mgFAashfreeDW-1 at T0 to 6.19±2.49 μg mgFAashfreeDW-1 in MONO) content characterised poor performing groups. Untargeted lipidomics evidenced how the availability of dietary essential PUFA did not influence only neutral lipids but also the membrane lipids, with changes in lipid molecular species in relation to the essential PUFA provided via the diet. Such changes have the potential to affect spat production cycle and their ability to respond to the surrounding environment. This study evidenced the advantages of coupling different lipid analysis techniques, as each technique disclosed relevant information on nutritional requirements of M. edulis juveniles, expanding the existing knowledge on the physiology of this important species.
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Affiliation(s)
| | - Christine Beveridge
- Scottish Association for Marine Sciences, Dunstaffnage Marine Laboratory, Oban, United Kingdom
| | - Stefano Carboni
- Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling, United Kingdom
| | - Sofia C. Franco
- Scottish Association for Marine Sciences, Dunstaffnage Marine Laboratory, Oban, United Kingdom
| | - Mary K. Doherty
- Division of Biomedical Sciences, University of the Highlands and Islands, Centre for Health Sciences, Inverness, United Kingdom
| | - Nina Long
- Scottish Association for Marine Sciences, Dunstaffnage Marine Laboratory, Oban, United Kingdom
| | - Elaine Mitchell
- Scottish Association for Marine Sciences, Dunstaffnage Marine Laboratory, Oban, United Kingdom
| | - Michele S. Stanley
- Scottish Association for Marine Sciences, Dunstaffnage Marine Laboratory, Oban, United Kingdom
| | - Phillip D. Whitfield
- Division of Biomedical Sciences, University of the Highlands and Islands, Centre for Health Sciences, Inverness, United Kingdom
| | - Adam D. Hughes
- Scottish Association for Marine Sciences, Dunstaffnage Marine Laboratory, Oban, United Kingdom
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Bertheloot J, Barbier F, Boudon F, Perez-Garcia MD, Péron T, Citerne S, Dun E, Beveridge C, Godin C, Sakr S. Sugar availability suppresses the auxin-induced strigolactone pathway to promote bud outgrowth. New Phytol 2020; 225:866-879. [PMID: 31529696 DOI: 10.1111/nph.16201] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [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: 04/29/2019] [Accepted: 09/09/2019] [Indexed: 05/21/2023]
Abstract
Apical dominance occurs when the growing shoot tip inhibits the outgrowth of axillary buds. Apically-derived auxin in the nodal stem indirectly inhibits bud outgrowth via cytokinins and strigolactones. Recently, sugar deprivation was found to contribute to this phenomenon. Using rose and pea, we investigated whether sugar availability interacts with auxin in bud outgrowth control, and the role of cytokinins and strigolactones, in vitro and in planta. We show that sucrose antagonises auxin's effect on bud outgrowth, in a dose-dependent and coupled manner. Sucrose also suppresses strigolactone inhibition of outgrowth and the rms3 strigolactone-perception mutant is less affected by reducing sucrose supply. However, sucrose does not interfere with the regulation of cytokinin levels by auxin and stimulates outgrowth even with optimal cytokinin supply. These observations were assembled into a computational model in which sucrose represses bud response to strigolactones, largely independently of cytokinin levels. It quantitatively captures our observed dose-dependent sucrose-hormones effects on bud outgrowth and allows us to express outgrowth response to various combinations of auxin and sucrose levels as a simple quantitative law. This study places sugars in the bud outgrowth regulatory network and paves the way for a better understanding of branching plasticity in response to environmental and genotypic factors.
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Affiliation(s)
- Jessica Bertheloot
- IRHS, INRA, Agrocampus-Ouest, Université d'Angers, SFR 4207 QuaSaV, 49071, Beaucouzé, France
| | - François Barbier
- IRHS, INRA, Agrocampus-Ouest, Université d'Angers, SFR 4207 QuaSaV, 49071, Beaucouzé, France
- School of Biological Sciences, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Frédéric Boudon
- CIRAD, UMR AGAP & Univ. Montpellier, Avenue Agropolis, TA A-108/01, F-34398, Montpellier, France
| | | | - Thomas Péron
- IRHS, INRA, Agrocampus-Ouest, Université d'Angers, SFR 4207 QuaSaV, 49071, Beaucouzé, France
| | - Sylvie Citerne
- Institut Jean-Pierre Bourgin Centre de Versailles-Grignon (IJPB), INRA, Agro-ParisTech, CNRS, Versailles, France
| | - Elizabeth Dun
- School of Biological Sciences, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Christine Beveridge
- School of Biological Sciences, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Christophe Godin
- Laboratoire Reproduction et Développement des Plantes, University of Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRA, Inria, F-69342, Lyon, France
| | - Soulaiman Sakr
- IRHS, INRA, Agrocampus-Ouest, Université d'Angers, SFR 4207 QuaSaV, 49071, Beaucouzé, France
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Suckling CC, Clark MS, Beveridge C, Brunner L, Hughes AD, Harper EM, Cook EJ, Davies AJ, Peck LS. Experimental influence of pH on the early life-stages of sea urchins II: increasing parental exposure times gives rise to different responses. INVERTEBR REPROD DEV 2014. [DOI: 10.1080/07924259.2013.875951] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Hayward A, Stirnberg P, Beveridge C, Leyser O. Interactions between Auxin and Strigolactone in Shoot Branching Control. Plant Physiol 2009; 151:400-12. [PMID: 19641034 PMCID: PMC2735998 DOI: 10.1104/pp.109.137646] [Citation(s) in RCA: 260] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
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Fielding LM, Ellis L, Beveridge C, Peters AC. An evaluation of HACCP implementation status in UK small and medium enterprises in food manufacturing. Int J Environ Health Res 2005; 15:117-26. [PMID: 16026023 DOI: 10.1080/09603120500061583] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
To reduce foodborne illnesses, hazard and risk-based quality management systems are essential. Small and medium sized companies (SMEs) tend to have a poor understanding of such systems and limited adoption of the Hazard Analysis Critical Control Point system (HACCP). The requirement for full HACCP implementation by 2006 will place an even greater burden on these businesses. The aim of this project is to assess the current levels of understanding of hazards and risks in SMEs in the manufacturing sector. A questionnaire survey was made of 850 SMEs, including microbusinesses. This determined the industry sector and processes carried out, whether the company operated hazard-based quality management and the knowledge of the technical manager regarding the associated hazards and risks. Follow-up visits to the manufacturing plant observed the processes and the operatives to determine their level of understanding. A benchmarking audit was carried out and each company was rated. The results show that the majority of respondents stated that they operated hazard analysis-based quality management. The ability of the respondents to correctly define a hazard or risk or identify different types of hazard was, however, poor. There was no correlation between business type and audit score. The microbusinesses did, however, perform significantly less well than the larger SMEs.
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Affiliation(s)
- L M Fielding
- Food Research & Consultancy Unit, School of Applied Sciences, University of Wales Institute, Cardiff, UK.
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Sorefan K, Booker J, Haurogné K, Goussot M, Bainbridge K, Foo E, Chatfield S, Ward S, Beveridge C, Rameau C, Leyser O. MAX4 and RMS1 are orthologous dioxygenase-like genes that regulate shoot branching in Arabidopsis and pea. Genes Dev 2003; 17:1469-74. [PMID: 12815068 PMCID: PMC196077 DOI: 10.1101/gad.256603] [Citation(s) in RCA: 384] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2002] [Accepted: 03/20/2003] [Indexed: 11/25/2022]
Abstract
Shoot branching is inhibited by auxin transported down the stem from the shoot apex. Auxin does not accumulate in inhibited buds and so must act indirectly. We show that mutations in the MAX4 gene of Arabidopsis result in increased and auxin-resistant bud growth. Increased branching in max4 shoots is restored to wild type by grafting to wild-type rootstocks, suggesting that MAX4 is required to produce a mobile branch-inhibiting signal, acting downstream of auxin. A similar role has been proposed for the pea gene, RMS1. Accordingly, MAX4 and RMS1 were found to encode orthologous, auxin-inducible members of the polyene dioxygenase family.
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Affiliation(s)
- Karim Sorefan
- Department of Biology, University of York, York, YO10 5YW, United Kingdom
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Abstract
It is becoming increasingly apparent that the long-distance signalling associated with many developmental processes is complex and that novel hormone-like signals may play substantial roles. The past decades have seen several substances (e.g. brassinosteroids, systemin and other polypeptides, mevalonic and jasmonic acids, polyamines, oligosaccharides, flavonoids, and quinones) vie for a place among the classical plant hormones (e.g. Spaink, 1996). Recent microinjection and grafting studies have also shown that RNA may act as a long-distance signal (Jorgensen et al., 1998; Xoconostle-Cázares et al., 1999). In this issue, Hannah et al. describe long-distance signalling and the regulation of root-shoot partitioning in dwarf lethal or dosage-dependent lethal (DL) mutants of common bean (Shii et al., 1980, 1981), and present evidence indicating that substances in addition to classical plant hormones (e.g. cytokinins) may be involved. As in the report by Hannah et al., much of the evidence for roles of unidentified long-distance signals in the control of plant development is indirect. The possibility that a small number of long-distance signals might control a multitude of developmental processes arises through the potential for differences in tissue sensitivity, fluctuations in hormone levels and differences in the nature of responses of different tissues to the same hormone. Consequently, particular hormones may influence numerous processes seemingly simultaneously, yet independently. Even so, long-distance signalling is involved in processes as diverse as root-shoot balance, senescence, branching, flowering, nodulation, stress responses and nutrient uptake. Through comparison of even a few different developmental processes, progress can be made to reveal the true complexity of plant development. Using this approach it is also clear that many unknown signals may be involved.
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Affiliation(s)
- Christine Beveridge
- 1 Department of Botany, The University of Queensland, Brisbane, 4072, Australia (tel +61 7 3365 8582; fax +61 7 3365 1699; e-mail )
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Beveridge C. Nutritional policy. Catering for health can save money. Health Serv J 1986; 96:1110. [PMID: 10278960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Beveridge C. Structural tensions. Decentralisation revisited. Health Soc Serv J 1985; 95:984-5. [PMID: 10272676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Beveridge C. NHS management. Don't settle down just yet ... this is the age of change. Health Soc Serv J 1985; 95:316-7. [PMID: 10271002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Beveridge C. Restructuring. Canny Scots keep options open. Health Soc Serv J 1984; 94:407-8. [PMID: 10266432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Beveridge C. Who is counting the human factor? Health Soc Serv J 1983; 93:1256-7. [PMID: 10263799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Beveridge C. Against centrism: planning and development in the NHS. Hosp Health Serv Rev 1983; 79:210-3. [PMID: 10263831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Stein RG, Beveridge C, Levy E, Mozur D, Nathan D, Reider L, Schlossberg H, Stein C. Hospital energy conservation study. Hosp Top 1979; 57:26-32. [PMID: 457105 DOI: 10.1080/00185868.1979.9954246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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