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Care O, Bernstein MJ, Chapman M, Diaz Reviriego I, Dressler G, Felipe-Lucia MR, Friis C, Graham S, Hänke H, Haider LJ, Hernández-Morcillo M, Hoffmann H, Kernecker M, Nicol P, Piñeiro C, Pitt H, Schill C, Seufert V, Shu K, Valencia V, Zaehringer JG. Creating leadership collectives for sustainability transformations. Sustain Sci 2021; 16:703-708. [PMID: 33686348 PMCID: PMC7929730 DOI: 10.1007/s11625-021-00909-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 01/08/2021] [Indexed: 06/12/2023]
Abstract
UNLABELLED Enduring sustainability challenges requires a new model of collective leadership that embraces critical reflection, inclusivity and care. Leadership collectives can support a move in academia from metrics to merits, from a focus on career to care, and enact a shift from disciplinary to inter- and trans-disciplinary research. Academic organisations need to reorient their training programs, work ethics and reward systems to encourage collective excellence and to allow space for future leaders to develop and enact a radically re-imagined vision of how to lead as a collective with care for people and the planet. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s11625-021-00909-y.
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Affiliation(s)
- O. Care
- The Careoperative, Berlin, Germany
| | - M. J. Bernstein
- School for the Future of Innovation in Society, Arizona State University, Tempe, AZ 85281 USA
| | - M. Chapman
- Department of Geography and URPP Global Change and Biodiversity, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - I. Diaz Reviriego
- Faculty of Sustainability, Leuphana University of Lüneburg, Universitätsallee 1, 21335 Lüneburg, Germany
| | - G. Dressler
- Department of Ecological Modelling, Helmholtz Centre for Environmental Research–UFZ, Permoserstr. 15, 04318 Leipzig, Germany
- Institute of Environmental Systems Research, University of Osnabrück, Barbarastr. 12, 49076 Osnabrück, Germany
| | - M. R. Felipe-Lucia
- Department of Ecosystem Services, Helmholtz Centre for Environmental Research–UFZ, Puschstrasse 4, 04103 Leipzig, Germany
- Department of Ecosystem Services, German Center for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Puschstrasse 4, 04103 Leipzig, Germany
| | - C. Friis
- IRI THESys, Humboldt-Universität Zu Berlin, Unter den Linden 6, 10099 Berlin, Germany
- Section for Geography, Department of Geosciences and Natural Resource Management, University of Copenhagen, Øster Voldgade 10, 1350 Copenhagen K, Denmark
| | - S. Graham
- School of Geography and Sustainable Communities, University of Wollongong, Wollongong, 2522 Australia
| | - H. Hänke
- Department of Agricultural Economics and Rural Development, University of Goettingen, Platz der Göttinger Sieben 5, 37073 Göttingen, Germany
| | - L. J. Haider
- Stockholm Resilience Centre, Stockholm University, 106 91 Stockholm, Sweden
| | - M. Hernández-Morcillo
- Faculty of Forest and Environment, Eberswalde University for Sustainable Development, Alfred Möller Straße 1, 16225 Eberswalde, Germany
| | - H. Hoffmann
- Leibniz Centre for Agricultural Landscape Research (ZALF), Eberswalder Straße 84, 15374 Müncheberg, Germany
| | - M. Kernecker
- Leibniz Centre for Agricultural Landscape Research (ZALF), Eberswalder Straße 84, 15374 Müncheberg, Germany
| | - P. Nicol
- Sustainable Places Research Institute Cardiff University, 33 Park Place Cardiff, Wales, CF10 3BA UK
| | - C. Piñeiro
- Altekio S.Coop.Mad, Paseo de Las Acacias, 3, 1a, 28005 Madrid, Spain
| | - H. Pitt
- Sustainable Places Research Institute Cardiff University, 33 Park Place Cardiff, Wales, CF10 3BA UK
| | - C. Schill
- Stockholm Resilience Centre, Stockholm University, 106 91 Stockholm, Sweden
- Beijer Institute of Ecological Economics, Royal Swedish Academy of Sciences, Stockholm, Sweden
| | - V. Seufert
- Institute for Environmental Studies (IVM), Vrije Universiteit Amsterdam, De Boelelaan 1111, 1081 HV Amsterdam, The Netherlands
| | - K. Shu
- Institute of Soil Science and Plant Cultivation State Research Institute, Czartoryskich 8 Street, 24-100 Puławy, Poland
| | - V. Valencia
- Farming Systems Ecology Group, Wageningen University and Research, 6700AK Wageningen, The Netherlands
| | - J. G. Zaehringer
- Centre for Development and Environment, University of Bern, Mittelstrasse 43, 3012 Bern, Switzerland
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Abstract
The nested expression patterns of the paired-box containing transcription factors Pax2/5 and Pax6 demarcate the midbrain and forebrain primordium at the neural plate stage. We demonstrate that, in Pax2/5 deficient mice, the mesencephalon/metencephalon primordium is completely missing, resulting in a fusion of the forebrain to the hindbrain. Morphologically, in the alar plate the deletion is characterized by the substitution of the tectum (dorsal midbrain) and cerebellum (dorsal metencephalon) by the caudal diencephalon and in the basal plate by the replacement of the midbrain tegmentum by the ventral metencephalon (pons). Molecularly, the loss of the tectum is demonstrated by an expanded expression of Pax6, (the molecular determinant of posterior commissure), and a rostral shift of the territory of expression of Gbx2 and Otp (markers for the pons), towards the caudal diencephalon. Our results suggest that an intact territory of expression of Pax2/5 in the neural plate, nested between the rostral and caudal territories of expression of Pax6, is necessary for defining the midbrain vesicle.
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Affiliation(s)
- M Schwarz
- Max Planck Institute of Biophysical Chemistry, Am Fassberg, 37077, Göttingen, Germany
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Weiss JB, Von Ohlen T, Mellerick DM, Dressler G, Doe CQ, Scott MP. Dorsoventral patterning in the Drosophila central nervous system: the intermediate neuroblasts defective homeobox gene specifies intermediate column identity. Genes Dev 1998; 12:3591-602. [PMID: 9832510 PMCID: PMC317240 DOI: 10.1101/gad.12.22.3591] [Citation(s) in RCA: 191] [Impact Index Per Article: 7.3] [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: 08/10/1998] [Accepted: 09/29/1998] [Indexed: 11/24/2022]
Abstract
One of the first steps in neurogenesis is the diversification of cells along the dorsoventral axis. In Drosophila the central nervous system develops from three longitudinal columns of cells: ventral cells that express the vnd/nk2 homeobox gene, intermediate cells, and dorsal cells that express the msh homeobox gene. Here we describe a new Drosophila homeobox gene, intermediate neuroblasts defective (ind), which is expressed specifically in the intermediate column cells. ind is essential for intermediate column development: Null mutants have a transformation of intermediate to dorsal column neuroectoderm fate, and only 10% of the intermediate column neuroblasts develop. The establishment of dorsoventral column identity involves negative regulation: Vnd represses ind in the ventral column, whereas ind represses msh in the intermediate column. Vertebrate genes closely related to vnd (Nkx2.1 and Nkx2.2), ind (Gsh1 and Gsh2), and msh (Msx1 and Msx3) are expressed in corresponding ventral, intermediate, and dorsal domains during vertebrate neurogenesis, raising the possibility that dorsoventral patterning within the central nervous system is evolutionarily conserved.
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Affiliation(s)
- J B Weiss
- Departments of Developmental Biology and Genetics, Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, California 94305-5329 USA
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Valentini RP, Brookhiser WT, Park J, Yang T, Briggs J, Dressler G, Holzman LB. Post-translational processing and renal expression of mouse Indian hedgehog. J Biol Chem 1997; 272:8466-73. [PMID: 9079674 DOI: 10.1074/jbc.272.13.8466] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The full-length mouse Indian hedgehog (Ihh) cDNA was cloned from an embryonic 17.5-day kidney library and was used to study the post-translational processing of the peptide and temporal and spatial expression of the transcript. Sequence analysis predicted two putative translation initiation sites. Ihh translation was initiated at both initiation sites when expressed in an in vitro transcription/translation system. Expression of an Ihh mutant demonstrated that the internal translation initiation site was sufficient to produce the mature forms of Ihh. Ihh post-translational processing proceeded in a fashion similar to Sonic and Drosophila hedgehog; the unprocessed form underwent signal peptide cleavage as well as internal proteolytic processing to form a 19-kDa amino-terminal peptide and a 26-kDa carboxyl-terminal peptide. This processing required His313 present in a conserved serine protease motif. Ihh transcript was detected by in situ RNA hybridization as early as 10 days postcoitum (dpc) in developing gut, as early as 14.5 dpc in the cartilage primordium, and in the developing urogenital sinus. In semiquantitative reverse transcription-polymerase chain reaction experiments, Indian hedgehog transcript was first detected in the mouse metanephros at 14.5 dpc; transcript abundance increased with gestational age, becoming maximal in adulthood. In adult kidney, Ihh transcript was detected only in the proximal convoluted tubule and proximal straight tubule.
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Affiliation(s)
- R P Valentini
- Department of Pediatrics, University of Michigan Medical School, Ann Arbor, Michigan 48109-0676, USA
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Dehbi M, Ghahremani M, Lechner M, Dressler G, Pelletier J. The paired-box transcription factor, PAX2, positively modulates expression of the Wilms' tumor suppressor gene (WT1). Oncogene 1996; 13:447-53. [PMID: 8760285] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The Wilms' tumor suppressor gene, wt1, encodes a zinc finger protein which functions as a transcriptional regulator. Expression of the wt1 gene is developmentally regulated and restricted to a small set of tissues which include the fetal urogenital system, mesothelium, and spleen. In the developing kidney, induction of neprohogenesis by the ureter is accompanied by an increase in expression levels of the Pax-2 gene, a developmentally and spatially regulated paired-box member. This is followed by an increase in wt1 expression as mesenchymal cells condense and differentiate. In this report, we demonstrate that PAX2 isoforms are capable of transactivating the wt1 promoter. Deletion mutagenesis of the wt1 promoter identified an element responsible for mediating PAX2 responsiveness, located between nucleotides -33 and -71 relative to the first wt1 transcription start site. Consistent with its identity as a PAX responsive element, multimerization of this mofit upstream of a heterologous minimal promoter enhanced reporter activity when co-transfected with a Pax-2 expression vector. Finally, we demonstrate that PAX2 can stimulate expression of the endogenous wt1 gene. These results suggest that a role for PAX2 during mesenchyme-to-epithelium transition in renal development is to induce wt1 expression.
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Affiliation(s)
- M Dehbi
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
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Chowdhury K, Dressler G, Breier G, Deutsch U, Gruss P. The primary structure of the murine multifinger gene mKr2 and its specific expression in developing and adult neurons. EMBO J 1988; 7:1345-53. [PMID: 3409867 PMCID: PMC458382 DOI: 10.1002/j.1460-2075.1988.tb02950.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The complete amino acid sequence of the murine finger-containing gene mKr2 was determined. On the basis of sequence similarities in the repeated finger domain, mKr2 belongs to the same class of developmentally expressed genes as Drosophila Krüppel and hunchback. The presence of metal ion and DNA-binding finger domains similar to those identified in TFIIIA supports the hypothesis that these genes regulate transcription. mKr2 transcripts are restricted to neurons in the central and peripheral nervous system of adult animals. Furthermore, mKr2 transcripts can be detected in all the major structures of the developing nervous system during embryogenesis. The data are consistent with the hypothesis that mKr2 is a regulatory factor required for the differentiation and/or phenotypic maintenance of neurons.
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Affiliation(s)
- K Chowdhury
- Department of Molecular Cell Biology, Max Planck Institute of Biophysical Chemistry, Göttingen
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