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Unique study isolates DNA from Linnaeus' botanical collections
August 28, 2009Researchers at Uppsala University has succeeded in extracting long DNA fragments from dried, pressed plant material collected in the 1700s by Linnaeus' apprentice Adam Afzelius. It is hoped that the study, led by Associate Professor Katarina Andreasen, will shed light on whether plants growing today at Linnaeus' Hammarby estate outside Uppsala reflect the species cultivated by Linnaeus himself.
A large number of plants of uncertain provenance grow at Carl Linnaeus' Hammarby estate, a museum and popular tourist destination. Have they been present since Linnaeus' time? In addition to probing this question, the current study will test the limits of DNA-sequencing methods with regard to old plant material and has already demonstrated that it is possible to sequence plant material more than 200 years old. The study is now published in the scientific journal Taxon.
"This opens up a number of exciting research possibilities in connection with material from herbaria throughout the world", says Katarina Andreasen.
The researchers hopes to initiate corresponding DNA investigations of plant material from the garden at Hammarby as soon as possible.
"It would be fun, if we can show that the old material is genetically identical with the plants currently growing at Hammarby, to create a living herbarium for summer visitors to the garden", says Katarina Andreasen.
Linnaeus' significance for the science of systematic biology, as reflected in locations in Sweden (Uppsala and Småland) and collection locations in seven other countries, is the focus of a World Heritage Site nomination. The foundations of systematic biology were laid by Carl Linnaeus through the aid of an extensive scientific network. If the nomination is approved by UNESCO preserved animals and plants will for the first time constitute a central aspect of a World Heritage Site.
Uppsala University
The researchers hopes to initiate corresponding DNA investigations of plant material from the garden at Hammarby as soon as possible.
"It would be fun, if we can show that the old material is genetically identical with the plants currently growing at Hammarby, to create a living herbarium for summer visitors to the garden", says Katarina Andreasen.
Linnaeus' significance for the science of systematic biology, as reflected in locations in Sweden (Uppsala and Småland) and collection locations in seven other countries, is the focus of a World Heritage Site nomination. The foundations of systematic biology were laid by Carl Linnaeus through the aid of an extensive scientific network. If the nomination is approved by UNESCO preserved animals and plants will for the first time constitute a central aspect of a World Heritage Site.
Uppsala University
Plant Material Current Events and Plant Material News RSSUT Knoxville and ORNL researchers turn algae into high-temperature hydrogen source
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Study shows more corn for biofuels would hurt water
More of the fertilizers and pesticides used to grow corn would find their way into nearby water sources if ethanol demands lead to planting more acres in corn, according to a Purdue University study.
Primate archaeology, proposal of a new research field
The use of tools by hominins - the primate group which includes humans (Homo) and chimpanzees and bonobos (Pan) - has been extensively researched by archaeologists and primatologists, both of who manifest the relevance of tool-use in understanding technology and the origins of human behaviour.
Fuels from Biomass: New Technique Can Fast-Track Better Ionic Liquids for Biomass Pre-Treatments
Understanding how ionic liquids dissolve lignocellulose will help scientists find new and better ways of producing advanced fuels from biomass They've been dubbed "grassoline" - second generation biofuels made from inedible plant material, including fast-growing weeds, agricultural waste, sawdust, etc. - and numerous scientific studies have shown them to be prime candidates for replacing gasoline to meet our transportation needs.
Carb synthesis sheds light on promising tuberculosis drug target
A fundamental question about how sugar units are strung together into long carbohydrate chains has also pinpointed a promising way to target new medicines against tuberculosis.
CU-Boulder study shows Maya intensively cultivated manioc 1,400 years ago
A University of Colorado at Boulder team has uncovered an ancient and previously unknown Maya agricultural system -- a large manioc field intensively cultivated as a staple crop that was buried and exquisitely preserved under a blanket of ash by a volcanic eruption in present-day El Salvador 1,400 years ago.
'Smart' process may boost economics of biofuel production
Researchers at the Department of Energy's Pacific Northwest National Laboratory believe they've identified a simpler way to generate biofuels - a one-step process to convert cellulose found in plant material and other biomass into a chemical that can serve as a precursor to make fuels and plastics.
UCSD researchers make first direct observations of biological particles in high-altitude ice clouds
A team of UC San Diego-led atmospheric chemistry researchers moved closer to what is considered the "holy grail" of climate change science when it made the first-ever direct detection of biological particles within ice clouds.
DNA of Uncultured Organisms Sequenced Using Novel Single-Cell Approach
Scientists from the U.S. Department of Energy (DOE) Joint Genome Institute (JGI) and the Bigelow Laboratory for Ocean Sciences have assembled high quality, contamination-free draft genomes of uncultured biodegrading microorganisms using a novel single cell genome sequencing approach.
Food security for leaf-cutting ants: Workers and their fungus garden reject endophyte invaders
New diseases directly affect human survival and food security, especially as population density climbs. Leaf-cutting ants, one of a few groups of social insects to cultivate crops, have harvested plant material to fertilize their underground fungal gardens for ~50 million years.
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