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Binne Zwanenburg, Tomáš Pospíšil  Molecular Plant 

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Presentation on theme: "Binne Zwanenburg, Tomáš Pospíšil  Molecular Plant "— Presentation transcript:

1 Structure and Activity of Strigolactones: New Plant Hormones with a Rich Future 
Binne Zwanenburg, Tomáš Pospíšil  Molecular Plant  Volume 6, Issue 1, Pages (January 2013) DOI: /mp/sss141 Copyright © 2013 The Authors. All rights reserved. Terms and Conditions

2 Figure 1 First Isolated Natural Strigolactones.
Molecular Plant 2013 6, 38-62DOI: ( /mp/sss141) Copyright © 2013 The Authors. All rights reserved. Terms and Conditions

3 Figure 2 Naturally Occurring Strigolactones.
Molecular Plant 2013 6, 38-62DOI: ( /mp/sss141) Copyright © 2013 The Authors. All rights reserved. Terms and Conditions

4 Figure 3 Names and Structures of SLs.
Molecular Plant 2013 6, 38-62DOI: ( /mp/sss141) Copyright © 2013 The Authors. All rights reserved. Terms and Conditions

5 Figure 4 Final Steps in the Total Synthesis of All Eight Stereoisomers of Strigol. Molecular Plant 2013 6, 38-62DOI: ( /mp/sss141) Copyright © 2013 The Authors. All rights reserved. Terms and Conditions

6 Figure 5 CD-Spectra of All Eight Stereoisomers of Strigol.
Molecular Plant 2013 6, 38-62DOI: ( /mp/sss141) Copyright © 2013 The Authors. All rights reserved. Terms and Conditions

7 Figure 6 Bioassays of All Eight Stereoisomers of Strigol with Seeds of S. hermonthica.‘rac’. GR24: equimolar mixture of two racemic diasteroisomers. Molecular Plant 2013 6, 38-62DOI: ( /mp/sss141) Copyright © 2013 The Authors. All rights reserved. Terms and Conditions

8 Figure 7 Structure History of ‘Orobanchol’ from Root Exudate of Red Clover. Molecular Plant 2013 6, 38-62DOI: ( /mp/sss141) Copyright © 2013 The Authors. All rights reserved. Terms and Conditions

9 Figure 8 Structure History of ‘Alectrol’.
Molecular Plant 2013 6, 38-62DOI: ( /mp/sss141) Copyright © 2013 The Authors. All rights reserved. Terms and Conditions

10 Figure 9 Structure History of Solanacol.
Molecular Plant 2013 6, 38-62DOI: ( /mp/sss141) Copyright © 2013 The Authors. All rights reserved. Terms and Conditions

11 Figure 10 Two Families of Naturally Occurring SLs.
Molecular Plant 2013 6, 38-62DOI: ( /mp/sss141) Copyright © 2013 The Authors. All rights reserved. Terms and Conditions

12 Figure 11 Bioactivities of Strigol and Its Analogs. ED50 germination activity seeds of parasitic weeds; MEC, minimum effective concentration in pg in hyphal branching. Molecular Plant 2013 6, 38-62DOI: ( /mp/sss141) Copyright © 2013 The Authors. All rights reserved. Terms and Conditions

13 Figure 12 Tentative Molecular Mechanism for the Mode of Action.
Molecular Plant 2013 6, 38-62DOI: ( /mp/sss141) Copyright © 2013 The Authors. All rights reserved. Terms and Conditions

14 Figure 13 Some Modified SL Analogs.
Molecular Plant 2013 6, 38-62DOI: ( /mp/sss141) Copyright © 2013 The Authors. All rights reserved. Terms and Conditions

15 Figure 14 Model for Designing Synthetic SL Analogs.
Molecular Plant 2013 6, 38-62DOI: ( /mp/sss141) Copyright © 2013 The Authors. All rights reserved. Terms and Conditions

16 Figure 15 Some Examples of SL Analogs Designed Using the Model Shown in Figure 14. Molecular Plant 2013 6, 38-62DOI: ( /mp/sss141) Copyright © 2013 The Authors. All rights reserved. Terms and Conditions

17 Figure 16 The Bioactivity of all Stereoisomers of GR24 against S. hermonthica. ‘rac’ Gr24: equimolar mixture of two racemic diastereoisomers. Molecular Plant 2013 6, 38-62DOI: ( /mp/sss141) Copyright © 2013 The Authors. All rights reserved. Terms and Conditions

18 Figure 17 SL Model Structure for the Branching Factor of AM Fungi.
Molecular Plant 2013 6, 38-62DOI: ( /mp/sss141) Copyright © 2013 The Authors. All rights reserved. Terms and Conditions

19 Figure 18 SL Model Structure for Shoot Inhibition and Two Types of Active SL Mimics. Molecular Plant 2013 6, 38-62DOI: ( /mp/sss141) Copyright © 2013 The Authors. All rights reserved. Terms and Conditions

20 Figure 19 SL Mimics. Molecular Plant 2013 6, 38-62DOI: ( /mp/sss141) Copyright © 2013 The Authors. All rights reserved. Terms and Conditions

21 Figure 20 Proposed Mechanism for SL Mimics Mode of Action.
Molecular Plant 2013 6, 38-62DOI: ( /mp/sss141) Copyright © 2013 The Authors. All rights reserved. Terms and Conditions

22 Figure 21 Hydrolysis of GR24.
Molecular Plant 2013 6, 38-62DOI: ( /mp/sss141) Copyright © 2013 The Authors. All rights reserved. Terms and Conditions

23 Figure 22 Potential SL Analogs for the Isolation and Identification of the Receptor Protein. Molecular Plant 2013 6, 38-62DOI: ( /mp/sss141) Copyright © 2013 The Authors. All rights reserved. Terms and Conditions

24 Figure 23 SL Fluorescent Analogs.
Molecular Plant 2013 6, 38-62DOI: ( /mp/sss141) Copyright © 2013 The Authors. All rights reserved. Terms and Conditions

25 Figure 24 Proposed Biosynthesis of SLs via ABC Ring Scaffold.
Molecular Plant 2013 6, 38-62DOI: ( /mp/sss141) Copyright © 2013 The Authors. All rights reserved. Terms and Conditions

26 Figure 25 Proposed Biosynthesis of SLs through Carlactone.
Molecular Plant 2013 6, 38-62DOI: ( /mp/sss141) Copyright © 2013 The Authors. All rights reserved. Terms and Conditions

27 Figure 26 Non-SL-Germinating Agents.
Molecular Plant 2013 6, 38-62DOI: ( /mp/sss141) Copyright © 2013 The Authors. All rights reserved. Terms and Conditions

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