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Kolloquien

Kolloquien

Gastvortrag I 29.09.2020 – 13:00 Uhr 

Vortragende*r: Dr. Tsu-Wei Chen (Uni Hannover)

Thema: Understanding the dynamics of canopy function in vegetable crops

Datum und Uhrzeit: 29.09.2020 – 13:00 Uhr

Zoom-Link: https://igzev-de.zoom.us/j/3370178131

Sprache: Englisch

Zusammenfassung: 

Kenntnisse über die dynamische Funktion und die physiologischen Mechanismen auf der Ebene der Überdachung sind erforderlich, um Strategien zur Verbesserung der Leistung von Gemüsepflanzen zu entwickeln. In diesem Vortrag werde ich Gurken und Tomaten, die wichtigsten Gewächshausgemüsepflanzen, verwenden, um zu zeigen, wie sich Salzgehaltstress auf die architektonischen und physiologischen Einschränkungen der Trockenmassenproduktion auf der Ebene der Überdachung auswirkt.

Um dies zu erreichen, werden zwei Rahmenbedingungen für funktionell-strukturelle Pflanzenmodelle ( FSPM), in dem die 3D-Architektur von Pflanzen explizit beschrieben wird, wurden konstruiert, parametrisiert und bewertet. Das erste Gerüst war ein statisches Architekturmodell des Gurkenhimmels in Verbindung mit einem biochemischen Modell der Photosynthese und einer quantitativen Begrenzungsanalyse der Photosynthese, um die Auswirkungen physiologischer Prozesse auf die Begrenzung der Photosynthese vom Blatt auf die gesamte Pflanzenebene zu skalieren. Unter Verwendung dieses Rahmens wurden die Einflüsse des Salzgehalts, der augenblicklichen Lichtverhältnisse und ihrer Wechselwirkungen auf architektonische und physiologische Einschränkungen bei Gurken systematisch und quantitativ analysiert. Das zweite Gerüst, ein dynamisches FSPM des Tomatenwachstums, wurde verwendet, um die Auswirkungen architektonischer Merkmale auf die Trockenmassenproduktion der gesamten Pflanze und ihre Wechselwirkungen mit Temperatur und Salzgehalt zu untersuchen. Wir unterstreichen die Bedeutung der Pflanzenarchitektur auf Baldachinebene für die Untersuchung der Reaktionen der Pflanzen auf die Umwelt und zeigen die Vorzüge von FSPM als heuristisches Werkzeug.

 

Kolloquien

Gastvortrag am 05. November 2019

Ort: Konferenzraum

Zeit: 13uhr

Sprecherin und Vortragstitel: Prof. Marc Wolfram & Dr. Martina Artman

Leibniz-Institut für ökologische Raumentwicklung (IÖR), Dresden

Spatial sustainability science: The IOER research agenda and its intersections with horticulture research

Abstract

The Leibniz Institute of Ecological Urban and Regional Development (IOER) in Dresden investigates dynamic interactions between society, ecosystems and built environs at and across multiple spatial scales, as well as options and methods for responsible stewardship towards sustainability. The research is highly interdisciplinary, working across a range of disciplines in the social-, natural- and engineering sciences. It is also transdisciplinary, collaborating closely with stakeholders in the public, private and civil society sectors in knowledge co-production and -transfer. The IOER specifically aims to foster just urban and regional transformations that enable humanity to thrive within a safe ecological operating space. This agenda also entails diverse implications regarding the current and potential future role of horticulture research, considering for instance local food production, environmental quality and conditions, the circular economy, or human-nature relations more generally. Therefore, this presentation will provide a brief introduction and overview of the IOER and its research, focusing specifically on options and opportunities for collaboration with the IGZ.

 

Einladung zum Gastvortrag von Prof. Marc Wolfram & Dr. Martina Artmann (PDF.)

 

Kolloquien

Gastvortrag, 29. Oktober 2019

Ort:

Konferenzraum

Zeit:

13uhr

 

Sprecherin und Vortragstitel:

Dr. Vanessa Wahl

Max-Planck Institut für Molekulare Pflanzenphysiologie, Potsdam-Golm

Resource-demanding developmental transitions in Arabidopsis thaliana and Solanum tuberosum

 

Abstract

The research group of Dr Vanessa Wahl focuses on how the metabolic and nutritional status modulates developmental transitions in plants. There is a particular interest in processes happening at the shoot apex that regulate meristem size and the timing of e.g. the floral transition. They use Arabidopsis thaliana as a model system in order to understand the basic mechanisms, but are extending the knowledge gained to study the regulation of developmental transitions in the crop species Solanum tuberosum (potato) and the ornamental species Chrysanthemum. Dr Vanessa Wahl will present recent findings on how the availability of sucrose or nitrate affect plant development (e.g. Musialak-Lange et al., in prep.; Olas et al., New Phytologist, 2019).

 

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Einladung zum Gastvortrag von Dr. Vanessa Wahl (Pdf)

 

Kolloquien

Gastvortrag, 04. Juli 2019 (Donnerstag)

Ort:

Konferenzraum

Zeit:

13uhr

 

Sprecher und Vortragstitel:

Prof Markus Schwarzländer

Plant Energy Biology

Institut für Biologie und Biotechnologie der Pflanzen

Universität Münster

„Monitoring Cellular Energy Physiology and Regulation in Plants“

 

Abstract

The energy conversion that occurs in plant cells requires tight surveillance and dynamic adjustment to meet demands, maintain efficiency and avoid dysfunction. Frequent and often dramatic changes in the environment and developmental transitions of plants, such as the day-night transitions, changes in oxygen availability or seed germination make tailored control mechanisms particularly important. Nevertheless there is a limited understanding of the dynamics of energy physiology and their regulation at the subcellular level in plants. We have been using quantitative confocal microscopy and fluorimetry to assess transitions in energy physiology in vivo using genetically-encoded fluorescent protein sensors. In this seminar I would like to highlight recent progress that we have made in dissecting subcellular ATP dynamics, redox regulation and calcium transport. The impact of cellular energy dynamics and its control as central determinant of plant-environment interactions will be discussed.

Prof. Markus Schwarzländer: Ankündigung mit Abstract

 

Kolloquien │ 14. Juni 2019

Gastvortrag, 03. Juli 2019 (Mittwoch)

Ort: Konferenzraum Zeit: 13uhr   Sprecherin und Vortragstitel: Dr. Andrea Matros University of Adelaide · School of Agriculture, Food and Wine „Variation of fructan profiles in a population of two-row spring barley and the impact on plant performance under drought“

Ort:

Konferenzraum

Zeit:

13uhr

 

Sprecherin und Vortragstitel:

Dr. Andrea Matros

University of Adelaide · School of Agriculture, Food and Wine

„Variation of fructan profiles in a population of two-row spring barley and the impact on plant performance under drought“

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Announcement for download (pdf)

 

Kolloquien │ 21. Juni 2019

Gastvortrag, 28. Juni 2019 (Freitag)

Ort: Konferenzraum Zeit: 10 Uhr   Sprecher und Vortragstitel: Dr. Eswarayya Ramireddy Indian Institute of Science Education and Research Tirupati (IISER Tirupati) „Smart roots for the development of climate-resilient crops“

Ort:

Konferenzraum

Zeit:

10 Uhr

 

Sprecher und Vortragstitel:

Dr. Eswarayya Ramireddy

Indian Institute of Science Education and Research Tirupati (IISER Tirupati)

„Smart roots for the development of climate-resilient crops“

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Aushang zur Vortragsankündigung (pdf)

 

Kolloquien

IGZ Symposium zu “Multiple perspectives on circular economies & horticulture: Learning from & about Indian natural farming”

Ort:

Hörsaal Großbeeren

 

Programm:

10:15 – 12:00 Gastvorträge (jeweils 15 min Vortrag & 5 min Diskussion; in englischer Sprache)

 

Sprecher/innen und Vortragstitel:

 

Ariane Krause & Franziska Häfner (IGZ)

  • “Increasing Sustainability in Horticultural Production Systems by Nutrient Cycling”

Mrinalini Kochupillai (Technical University of Munich)  

  • “The New EU Organic Regulations- What can the EU learn from the Indian Experience?”

Jasper Matthiessen & Karthik Jeganathan (International Arts of Living Foundation) 

  • “Ancient knowledge for modern agriculture – Sri Sri Natural Farming: Scientific background of Traditional Ecological Knowledge of India”

Julia Köninger (Technical University of Munich)  

  • “Overcoming the Intensification of European Agriculture: Learning from the Natural Farming Movement in India”

Daniel Münster (University of Heidelberg)

  • “Can Indian Natural Farming go global? Some reflections from ethnographic work with Zero Budget Natural Farming”

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Programm des Symposiums (Pdf)

Abstracts der Vorträge (Pdf)

 

Kolloquien

Kolloquium, 18. Dezember 2018

Ort:

Hörsaal Großbeeren

 

Zeit:

13Uhr

 

Sprecher*innen und Vortragstitel:

Dr. Mohanna Mollavali

“Modulation of trehalose biosynthetic gene expression to improve stress tolerance of tomato”

 

Dr. Roxana Djalali Farahani-Kofoet

„Impact of Fusarium species on Asparagus“

 

Kolloquien

Verteidigung Masterarbeit, Donnerstag 13. Dezember 2018

Ort:

Hörsaal des IGZ

 

Zeit:

13Uhr

 

Sprecher und Vortragstitel:

Zachary Taylor

“Chloroplast-based production of antimicrobial peptides: potential for plant protection”

Albrecht-Daniel-Thaer-Institute of Agricultural and Horticultural Sciences

Humboldt University Berlin

Ankündigung der Verteidigung der Masterarbeit, 13.12.2018

 

Kolloquien

Kolloquium, 11. Dezember 2018

Ort:

Hörsaal Großbeeren

 

Zeit:

13Uhr

 

Sprecher*innen und Vortragstitel:

 

Dr. Jörg Rühlmann

Predicting soil texture information from soil electrical resistivity measurements

Dr. Swen Meyer

Estimation of soil texture information using geophysical sensors for agricultural liming – Insights into the pH-BB project

 

Kolloquien

Symposium „Nutrient recycling for circular economies“, 5. Dezember 2018

Ort:

Hörsaal Großbeeren

 

Programm:

10:15 – 12:10 Gastvorträge (jeweils 15 min Vortrag & 5 min Diskussion; in englischer Sprache)

 

Sprecher/innen und Vortragstitel:

Prof. Dr. Kai Udert

Swiss Federal Institute of Technology (ETH) in Zurich & Swiss Federal Institute of Aquatic Science and Technology (Eawag)

„Urine running in circles“

Dr. rer. nat. Gerhild Bornemann

DLR Institute of Aerospace Medicine, Köln

„C.R.O.P. – Combined Regenerative Organic food Production“

Mareike Mauerer

Albrecht Daniel Thaer-Institute an der Humboldt Universität zu Berlin

„The use of recycled nutrients in vegetable production under glass“

Grace Crain

Group of Plant Nutrition at the Institute of Agricultural Sciences (IAS) at the Department of Environmental Systems Science (D-USYS) at ETH Zürich

„Crop production in hydroponics using recycled nutrients and microbial consortia“

 

Programm des Symposiuma "Nutrient recycling for circular economies"

 

Kolloquien

Kolloquium, 4. Dezember 2018

Ort:

Hörsaal Großbeeren

Zeit:

13Uhr

 

Sprecher und Vortragstitel:

Dr. Hanna Freudenreich

“Agriculture as a safety net – evidence from Kyrgyzstan”

Dr. Ghassan Baliki

„Healthier Children Diets: Baseline Results from School Gardens Experiments in Nepal“

Forschungsgruppe 3.3 Ökonomische Entwicklung und Ernährungssicherheit

 

Kolloquien │ 22. Oktober 2018

Gastvortrag, 27. November 2018

Ort: Hörsaal Großbeeren Zeit: 13uhr   Sprecherin und Vortragstitel: Prof. Kerstin Kaufmann Humboldt Universität zu Berlin „Epigenetic control of gene activation in Arabidopsis flower development“   Abstract: Developmental switches and cell fate decisions in plants require coordinated changes in the activities of thousands of genes. Concerted activities of transcription factors and epigenetic regulators are essential […]

Ort:

Hörsaal Großbeeren

Zeit:

13uhr

 

Sprecherin und Vortragstitel:

Prof. Kerstin Kaufmann

Humboldt Universität zu Berlin

„Epigenetic control of gene activation in Arabidopsis flower development“

 

Abstract:

Developmental switches and cell fate decisions in plants require coordinated changes in the activities of thousands of genes. Concerted activities of transcription factors and epigenetic regulators are essential for spatiotemporal control of gene expression programs. Polycomb repressive complex 2 (PRC2) mediates the epigenetic memory of gene silencing in plant development, thereby restricting gene activities to specific cell types and developmental stages. RELATIVE OF EARLY FLOWERING 6 (REF6) is a Jumonji (JMJ)-type histone demethylase that counteracts PRC2-mediated gene silencing in plants. Research in my group recently showed that REF6 and its two close paralogs determine spatial ‘boundaries’ of the repressive histone H3K27me3 mark in the genome, and control the tissue-specific release from PRC2-mediated gene repression. Targeted mutagenesis revealed that these histone demethylases display pleiotropic, redundant functions in plant development, several of which depend on trans factor-mediated recruitment. Thus, JMJ-type histone demethylases restrict repressive chromatin domains, and contribute to tissue-specific gene activation via complementary targeting mechanisms.

 

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Kolloquien │ 22. Oktober 2018

Gastvortrag, 19. November 2018

Ort: Hörsaal Großbeeren   Zeit: 13Uhr   Sprecherin und Vortragstitel: Dr Annette Piorr Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) „Urban or Peri-urban agriculture in the EU“ Abtract: The presentation will give a state of the art overview on urban agriculture and peri-urban agriculture (UPUA), the diversity of phenomena, motivations, distinctive features, benefits and limitations. UPUA is contextualized in […]

Ort:

Hörsaal Großbeeren

 

Zeit:

13Uhr

 

Sprecherin und Vortragstitel:

Dr Annette Piorr

Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF)

„Urban or Peri-urban agriculture in the EU“

Abtract:

The presentation will give a state of the art overview on urban agriculture and peri-urban agriculture (UPUA), the diversity of phenomena, motivations, distinctive features, benefits and limitations. UPUA is contextualized in relation to societal and economic transformations, EU strategic objectives, policies and regional food system approaches. Using best practice examples, the presentation demonstrates the need for an improved integration of UPUA into the policy agenda across sectors, domains and governance levels.

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Kolloquien │ 22. Oktober 2018

Gastvortrag, 16. November 2018

Ort: Hörsaal Großbeeren   Zeit: 11Uhr   Vortragender und Thema: Gerald Freymark Team leader Biochemistry, Rijk Zwaan Breeding, Netherlands „Metabolic differences in chromosome substitution lines of Arabidopsis thaliana received by Reverse Breeding“   Abstract: Traditionally, hybrid seeds are produced by crossing selected inbred lines. A recent method for haploid production in the model plant A. […]

Ort:

Hörsaal Großbeeren

 

Zeit:

11Uhr

 

Vortragender und Thema:

Gerald Freymark

Team leader Biochemistry, Rijk Zwaan Breeding, Netherlands

Metabolic differences in chromosome substitution lines of Arabidopsis thaliana received by Reverse Breeding“

 

Abstract:

Traditionally, hybrid seeds are produced by crossing selected inbred lines. A recent method for haploid production in the model plant A. thaliana (Ravi and Chan, 2010) enabled us to provide a proof of concept for an alternative strategy: Reverse Breeding, a new approach that simplifies meiosis such that homozygous parental lines can be gene-rated from a vigorous hybrid individual (Dirks et al. 2003, 2009). We silenced DMC1, which encodes the meiotic recombination protein DISRUPTED MEIOTIC cDNA1, in hybrids of A. thaliana, so that non-recombined parental chromosomes segregate during meiosis (Wijnker et al. 2008, 2012). We then converted the resulting gametes into adult haploid plants, and subsequently into homozygous diploids, so that each contained half the genome of the original hybrid. From 36 homozygous lines, we were able to identify a complete set of chromosome-substitution lines. Some of those lines were analyzed for metabolic differences by LC-MS.  Among others, several glucosinolates have already been identified to decrease in one of the chromosome substitution lines. Elucidating the genetic differences between the parental lines can explain those metabolic changes.

 

 

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