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Rescooped by Jorge Sáenz Mata from Plant-Microbe Symbiosis
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MinION USB stick gene sequencer finally comes to market

MinION USB stick gene sequencer finally comes to market | Biotechnology | Scoop.it
Oxford Nanopore Technologies has finally delivered on its promise to bring personalized genome sequencing to the desktop. It is now time to see what their MinIon USB device can do.

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Jean-Michel Ané's curator insight, September 26, 2014 1:03 AM

Watch the video... Now you know what I want for Christmas!

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Genetically modified crops pass benefits to weeds - Nature.com

Genetically modified crops pass benefits to weeds - Nature.com | Biotechnology | Scoop.it
Nature.com Genetically modified crops pass benefits to weeds Nature.com Biotechnology labs have also attempted to use genes from plants rather than bacteria to boost EPSP-synthase production, in part to exploit a loophole in US law that facilitates...
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Rescooped by Jorge Sáenz Mata from Plant Biology Teaching Resources (Higher Education)
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Nature: 30 years of GMOs

Nature: 30 years of GMOs | Biotechnology | Scoop.it

There are several good articles in this week's Nature, celebrating 30 years since the first transgenic plants were produced.

Don't miss the analyses of agricultural biotech in Africa (http://www.nature.com/nature/journal/v497/n7447/full/497031a.html) and China (http://www.nature.com/nature/journal/v497/n7447/full/497033a.html), and a good perspectie on "Using membrane transporters to improve crops for sustainable food production" (http://www.nature.com/nature/journal/v497/n7447/full/nature11909.html).


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Rescooped by Jorge Sáenz Mata from Plant Breeding and Genomics News
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"Real time" genetic manipulation: a new tool for ecological field studies

Field experiments with transgenic plants often reveal the functional significance of genetic traits important for plant performance in their natural environments. Until now, only constitutive overexpression, ectopic expression and gene silencing methods have been used to analyze gene-related phenotypes in natural habitats. These methods do not allow sufficient control over gene expression to study ecological interactions in real-time, genetic traits playing essential roles in development, or dose-dependent effects. We applied the sensitive dexamethasone (DEX)-inducible pOp6/LhGR expression system to the ecological model plant Nicotiana attenuata and established a lanolin-based DEX application method to facilitate ectopic gene expression and RNAi mediated gene silencing in the field and under challenging conditions (e.g. high temperature, wind and UV radiation). Fully established field-grown plants were used to silence phytoene desaturase and thereby cause photobleaching only in specific plant sectors, and to activate expression of the cytokinin (CK) biosynthesis gene isopentenyl transferase (ipt). We used ipt expression to analyze the role of CK's in both the glasshouse and field to understand resistance to the native herbivore Tupiocoris notatus, which attack plants at small spatial scales. By spatially restricting ipt expression and elevating CK levels in single leaves, T. notatus damage increased, demonstrating CK's role in this plant-herbivore interaction at a small scale. As the arena of most ecological interactions is highly constrained in time and space, these tools will advance the genetic analysis of dynamic traits that matter for plant performance in nature. This article is protected by copyright. All rights reserved.


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Rescooped by Jorge Sáenz Mata from Plant Biology Teaching Resources (Higher Education)
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Labels for GMO Foods Are a Bad Idea: Scientific American

Labels for GMO Foods Are a Bad Idea: Scientific American | Biotechnology | Scoop.it

"Mandatory labels for genetically modified foods are a bad idea.

 

Instead of providing people with useful information, mandatory GMO labels would only intensify the misconception that so-called Frankenfoods endanger people's health. The American Association for the Advancement of Science, the World Health Organization and the exceptionally vigilant European Union agree that GMOs are just as safe as other foods."


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Ursula Sola de Hinestrosa's curator insight, August 21, 2013 2:38 PM

No les interesa poner en las etiquetas que casi todos los productos alimenticios de venta al por mayor tienen transgénicos y químicos.

¿La razon? Obvio. Dejaríamos de consumirlos.

Mary Williams's comment, August 21, 2013 2:49 PM
Personally, I believe labeling is pandering to a science-phobic sentiment that has no rational foundation. We already have organic labels, and people who want to chose those products can pay more for their labeled food. Looking ahead, as drought-tolerant, pathogen-resistant, nutrient enhanced varieties, produced using recombinent methods, move into our supermarkets, I don't want them stigmatized by nonsensical labels.
Andrew Morris's comment, August 24, 2013 3:00 AM
Scientific American just became a lot less scientific. This is blatant GM industry funded polemics, flying in the face of the public's right to make informed choices about what it consumes.
Rescooped by Jorge Sáenz Mata from Plant Breeding and Genomics News
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PLOS ONE: The Maize AAA-Type Protein SKD1 Confers Enhanced Salt and Drought Stress Tolerance in Transgenic Tobacco by Interacting with Lyst-Interacting Protein 5

PLOS ONE: The Maize AAA-Type Protein SKD1 Confers Enhanced Salt and Drought Stress Tolerance in Transgenic Tobacco by Interacting with Lyst-Interacting Protein 5 | Biotechnology | Scoop.it

ATPase associated with various cellular activities (AAA) proteins are important regulators involved in diverse cellular functions. To date, the molecular mechanisms of AAA proteins involved in response to salt and drought stresses in plants are largely unknown. In this study, a putative SKD1 (suppressor of K+ transport growth defect 1) ortholog from Zea mays (ZmSKD1), which encodes a putative AAA protein, was isolated. The transcript levels of ZmSKD1 were higher in aerial tissues and were markedly up-regulated by salt or drought stress. Over-expression of ZmSKD1 in tobacco plants enhanced their tolerances not only to salt but to drought. Moreover, reactive oxygen species accumulations in ZmSKD1 transgenic lines were relative less than those in wild-type plants during salt or PEG-induced water stress. The interaction between ZmSKD1 and NtLIP5 (Lyst-Interacting Protein 5 homolog from Nicotiana tabacum) was confirmed by both yeast two-hybrid and immuno-precipitation assays; moreover, the α-helix-rich domain in the C-terminus of ZmSKD1 was identified to be required for its interaction with NtLIP5 using truncation mutations. Collectively, these data demonstrate that ZmSKD1could be involved in salt and drought stress responses and its over-expression enhances salt or drought stress tolerance possibly through interacting with LIP5 in tobacco. This study may facilitate our understandings of the biological roles of SKD1-mediated ESCRT pathway under stress conditions in higher plants and accelerate genetic improvement of crop plants tolerant to environmental stresses.


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