Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Transgene Aspen And Cloned Karelian Birch

17.06.2003


Long ago genetic engineering got deep reach into pharmacological and food industry, agriculture and medicine. The trees are no exclusion, but genetic engineers started to deal with them approximately ten years later than with other objects: the trees are too difficult for genetic investigations and manipulations. The wood plant genetic engineering activities are now in full swing in different countries of the world, including Russia. When improving trees through classical selection methods, the researchers first of all focus on the growth rate, wood quality, resistance to vermin and diseases, herbicides, salts and other stresses. Genetic engineering allows to do the same but much quicker. Russian scientists have obtained several accelerated growth wood species.



Specialists of the Siberian Institute of Physiology and Biochemistry of Plants, Northern Branch, Russian Academy of Sciences (Irkutsk), have applied classical methods and transformed via the corn gene ugt the aspen, poplar and Cembra pine (the latter being traditionally miscalled cedar). This gene codes the synthesis of the enzyme, which ensures the high level of vegetative hormone auxin. Auxin is necessary for the plant growth and development, and the trees with the respective corn gene do develop much quicker. Such plants could be used in the future in dedicated plantations with a short turnus. These plantations could be set up around woodworking enterprises. Such plantations will save primeval taiga woods from felling and would allow to reduce transportation costs for wood delivery to woodworking sites.

The researchers from the Research Institute of Wood Genetics and Selection (Voronezh) applied a different technology of getting trees from the cell culture. They have chosen the most valuable species - Karelian birch. The researchers selected the trees with the most beautiful patterned timber, got the cell culture – calluses - from their stems, and cultivated the birch-trees from the calluses. The long-term field trials have proved that the cloned trees grow well, within 3-4 years their stems become tuberous or ribbed – these are the exterior signs patterned timber. When the tree is 5-8 years old, all the birch-trees without exception are patterned. If the Karelian birch is cultivated from the seeds under a common technology, the signs of patterned timber appera much later – at the age of 10 to12.


The ability to manipulate genes is one of the greatest achievements of the 20th century biology, but it also imposes serious responsibility on the scientists for possible environmental consequences, which should be taken into account along with the growing economic benefits from trangenes. The prospects for utilization of accelerated development plants look promising, but a lot of Russian researchers advise that thorough analysis should be made of possible consequences before new technologies are launched into series. Accelerated growth trees may exhaust the soil quickly, and genetically modified pollen can change the natural structure of forest population. So far neither Russia or other countries have convincing enough responses to these questions.

Sergey Komarov | alfa

More articles from Life Sciences:

nachricht Brought to light – chromobodies reveal changes in endogenous protein concentration in living cells
21.09.2018 | NMI Naturwissenschaftliches und Medizinisches Institut an der Universität Tübingen

nachricht A one-way street for salt
21.09.2018 | Julius-Maximilians-Universität Würzburg

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Scientists present new observations to understand the phase transition in quantum chromodynamics

The building blocks of matter in our universe were formed in the first 10 microseconds of its existence, according to the currently accepted scientific picture. After the Big Bang about 13.7 billion years ago, matter consisted mainly of quarks and gluons, two types of elementary particles whose interactions are governed by quantum chromodynamics (QCD), the theory of strong interaction. In the early universe, these particles moved (nearly) freely in a quark-gluon plasma.

This is a joint press release of University Muenster and Heidelberg as well as the GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt.

Then, in a phase transition, they combined and formed hadrons, among them the building blocks of atomic nuclei, protons and neutrons. In the current issue of...

Im Focus: Patented nanostructure for solar cells: Rough optics, smooth surface

Thin-film solar cells made of crystalline silicon are inexpensive and achieve efficiencies of a good 14 percent. However, they could do even better if their shiny surfaces reflected less light. A team led by Prof. Christiane Becker from the Helmholtz-Zentrum Berlin (HZB) has now patented a sophisticated new solution to this problem.

"It is not enough simply to bring more light into the cell," says Christiane Becker. Such surface structures can even ultimately reduce the efficiency by...

Im Focus: New soft coral species discovered in Panama

A study in the journal Bulletin of Marine Science describes a new, blood-red species of octocoral found in Panama. The species in the genus Thesea was discovered in the threatened low-light reef environment on Hannibal Bank, 60 kilometers off mainland Pacific Panama, by researchers at the Smithsonian Tropical Research Institute in Panama (STRI) and the Centro de Investigación en Ciencias del Mar y Limnología (CIMAR) at the University of Costa Rica.

Scientists established the new species, Thesea dalioi, by comparing its physical traits, such as branch thickness and the bright red colony color, with the...

Im Focus: New devices based on rust could reduce excess heat in computers

Physicists explore long-distance information transmission in antiferromagnetic iron oxide

Scientists have succeeded in observing the first long-distance transfer of information in a magnetic group of materials known as antiferromagnets.

Im Focus: Finding Nemo's genes

An international team of researchers has mapped Nemo's genome

An international team of researchers has mapped Nemo's genome, providing the research community with an invaluable resource to decode the response of fish to...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

"Boston calling": TU Berlin and the Weizenbaum Institute organize a conference in USA

21.09.2018 | Event News

One of the world’s most prominent strategic forums for global health held in Berlin in October 2018

03.09.2018 | Event News

4th Intelligent Materials - European Symposium on Intelligent Materials

27.08.2018 | Event News

 
Latest News

Astrophysicists measure precise rotation pattern of sun-like stars for the first time

21.09.2018 | Physics and Astronomy

Brought to light – chromobodies reveal changes in endogenous protein concentration in living cells

21.09.2018 | Life Sciences

"Boston calling": TU Berlin and the Weizenbaum Institute organize a conference in USA

21.09.2018 | Event News

VideoLinks
Science & Research
Overview of more VideoLinks >>>