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genetic engineering

  • Discovery of Mechanism behind Organisation of Plant Cell Wall Raises Hopes for Biorefinery Development

    EP RES break 17915Bio4Energy researchers Edouard Pesquet and Delphine Ménard in the laboratory at the Umeå Plant Science Centre in Sweden, checking on some of the proteins they found. Photo by Bio4Energy.

    Plant biologists have long tried to come up with a method for making trees produce large amounts of easily extractable biomass for making renewable products such as biofuels and "green" chemicals. Indeed, international conferences such as Lignin 2014 have seen scores or well-respected scientistsbiologists and chemists alikebrood the reasons why successful attempts to increase biomass production have led to the making of sample plants whose stems and branches sag in sad poses or to increased difficulty at the steps of extracting and separating the main components of wood: cellulose, hemicellulose and lignin.

    Whereas most of these attempts were aimed at trying to increase the production of biomass within the plant cell, a team of scientists based in Sweden and the UK came up with the idea to try to lay bare the processes responsible for the organisation of the cells in the plant's secondary cell wall. Thus the focus is no longer on maximising biomass production, but rather on finding out the exact way in which a plant goes about building its cell walls from within and who is responsible for doing what in that process. The researchers found as many as 605 proteins hard at work, performing specific and mostly non-overlapping tasks to control aspects of the cell wall's organisation such as its thickness, homogeneity, cortical position and patterns.

    "We tried to unravel the processes organising the cell. [What we found is that] the cell wall needs to be placed and organised specifically for wood cells to work. We have identified genes or proteins implicated in the control of this mechanism", said This email address is being protected from spambots. You need JavaScript enabled to view it., the Bio4Energy researcher who led the international study published in the well-respected ThePlant Cell scientific journal.

  • Field Trials Confirm Greater Bioethanol Yields Possible from Genetically Modified Trees

    EwaMellerowicz field Credit E MellerowiczEwa Mellerowicz surveys a hybrid aspen plant at an early stage of field trials in Sweden. Photo by courtesy of Ewa Mellerowicz.Scientists in Bio4Energy and academic colleagues have shown in field trials that aspen trees that were genetically modified (GM) to render more input material for making biofuel from wood than their wildtype counterparts, are robust enough to grow at a real-life plantation. The researchers also found that they could extract more such glucose sugar, more easily, from the GM trees, compared with the wildtype.

    This is the first time such results have been obtained outside of a research laboratory—that is outside of a greenhouse—according to research leader This email address is being protected from spambots. You need JavaScript enabled to view it. of the Swedish University of Agricultural Sciences (SLU) at Umeå, Sweden.

    “The glucose yield was 25 to 30 percent higher in the modified trees compared with the wildtype trees. This is a result obtained without pre-treatment so it means that [the modification helped to] decrease the recalcitrance of the wood and made the raw material easier to transform into sugar”, Mellerowicz told Bio4Energy Communications.

    Mellerowicz is one of the principal investigators on the research and development platform Bio4Energy Feedstock and has been in charge of verifying laboratory results in experimental plantations, or field trials, since the start in 2014 at Våxtorp, Sweden. The scientists planted and monitored more than 600 GM hybrid aspen trees, but which had to be harvested on the early side because of the impact of severe drought conditions in the summer of 2018, when all of Europe experienced heat waves.

  • Seminar on Bio-based Feedstock: 'Make No Mistake, There is Still Momentum for Building the Bioeconomy'

    Is the efficient and sustainable biorefinery of the future challenged by the low price of oil and gas and the lack of a political framework that encourages bio-based production in the long term? Yes. Have actors in the sector shut up shop while waiting for conditions to be right for launching the bioeconomy? Not at all.

    Judging from developments in Sweden, a precursor country in terms of biorefinery development based on woody materials and organic waste, great strides are being made in industry and academia to pave the way for a transition from an economy heavily reliant fossil fuels and materials based on petrochemicals, towards a bioeconomy. A few such developments were highlighted yesterday at a seminar at Umeå, in northern Sweden, on Feedstock for Sustainable Biofuel Production, by the Swedish Knowledge Centre for Renewable Transportation Fuels (f3 Centre), the research environment Bio4Energy and the Swedish University of Agricultural Sciences

    Anders-Hultgren-SCA
    Bioen-100-yrs-FF
    Bioen-use-SE
    Constraints-drivers
    Future-FF
    Johanna-Mossberg-f3
    MagnusHertzberg_SweTreeTechnologies
    Phiip-Peck-LU
    SCA-prod-plans
    STT-Field-Trials
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  • Seminar: Accelerated Breeding of Aspen, Umeå, Sweden

    Seminar on Accelerated Breeding of Aspen

    Place: KB2C5, Umeå University

     Host: Hannele Tuominen, Bio4Energy Feedstock