Team:UNITN-Trento

From 2013.igem.org

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        <span class="tn-title">Achievements</span>
        <span class="tn-title">Achievements</span>
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        <img class="plasmid" src="https://static.igem.org/mediawiki/2013/b/b6/Tn-2013-home-ach-Plasmids.png" />
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<ul class="plasmid">
<li>Built and submitted XX New BioBricks;</li>
<li>Built and submitted XX New BioBricks;</li>
<li>Successfully characterized YY BioBricks;</li>
<li>Successfully characterized YY BioBricks;</li>
<li>Improved XX parts;</li>
<li>Improved XX parts;</li>
</ul>
</ul>
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<img class="human" src="https://static.igem.org/mediawiki/2013/f/f9/Tn-2013-home-ach-Human-Practice_150.png" />
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<ul class="human">
<li>Hosted a high school student in the lab for the summer;</li>
<li>Hosted a high school student in the lab for the summer;</li>
<li>Asked the opinion of local fruit consumers on our project;</li>
<li>Asked the opinion of local fruit consumers on our project;</li>
</ul>
</ul>
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<ul id="product">
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<img class="product" src="https://static.igem.org/mediawiki/2013/f/fb/Tn-2013-home-ach-Products.png" />
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<ul class="product">
<li>Designed a fruit Vending Machine and an Home Edition B. fruity products;</li>
<li>Designed a fruit Vending Machine and an Home Edition B. fruity products;</li>
</ul>
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<img class="fruit" src="https://static.igem.org/mediawiki/2013/3/30/Tn-2013-home-ach-Fruit.png" />
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<ul class="fruit">
<li>Ripened XX bananas, YY tomatoes, zz kiwis, UU plums;</li>
<li>Ripened XX bananas, YY tomatoes, zz kiwis, UU plums;</li>
<li>Eaten one banana bread, one plums crumble and one apple strudel. </li>
<li>Eaten one banana bread, one plums crumble and one apple strudel. </li>

Revision as of 16:00, 27 September 2013


Hi everybody!

Our team is proud to introduce to you B. fruity, a new environment-friendly way to control fruit ripening by exploiting an engineered light-regulated strain of B. subtilis. The system works by synthesizing ethylene or methyl salicylate (MeSA) upon photoinduction.

Ethylene is a plant hormone widely used to ripen fruit. However its synthesis, handling, and storage is expensive and dangerous. In contrast, B. fruity produces ethylene from inexpensive material by hijacking a metabolic intermediate: 2-oxoglutarate. Our system converts this metabolite to ethylene through the activity of an ethylene forming enzyme (EFE) from Pseudomonas syringae.

B. fruity does not just accelerate ripening, but can also slow the process down, when desired, through the incorporation of a methyl salicylate (MeSA) synthesis pathway. MeSA was previously shown to inhibit the ripening of kiwifruit and tomatoes. The explored MeSA pathway builds upon the 2006 MIT iGEM project “Eau de coli”.

As a proof of concept, we engineered E. coli with the above system plus the YF1/FixJ blue light receptor device.

We are hopeful that B. fruity will simplify the process of bringing fresh fruit from the field to the consumer.

Achievements
  • Built and submitted XX New BioBricks;
  • Successfully characterized YY BioBricks;
  • Improved XX parts;
  • Hosted a high school student in the lab for the summer;
  • Asked the opinion of local fruit consumers on our project;
  • Designed a fruit Vending Machine and an Home Edition B. fruity products;
  • Ripened XX bananas, YY tomatoes, zz kiwis, UU plums;
  • Eaten one banana bread, one plums crumble and one apple strudel.
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