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Bjørn Rørslett: Flowers in Ultra-Violet

Bjørn Rørslett: Flowers in Ultra-Violet
The compilation of species will continue to be updated at irregular intervals. All species listed here have been documented, and links are added whenever I can find spare time for updating. These images are made for illustrative purposes, not as artistic statements per se. However, there are lots of food for thought in the convoluted ways Nature expresses itself, so for once the artist can step backand let the subjects speak for themselves. "Das Ding an Sich" to paraphrase Kant, or Eigenvalue of Nature. If you are unfamiliar with the botany, just select any species indicated as having a "strong" response to learn how this looks. However, not all species have the typical bull's-eye UV pattern, which may be confined to symmetrical flowers. The UV range of the spectrum has no predefined colours, so we are free to assign any colour we like. UV fluorescence may be a common trait to most flowers, but might be of temporary occurrence for parts of the flower.

http://www.naturfotograf.com/UV_flowers_list.html

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Karl Blossfeldt’s Urformen der Kunst (1928) At the grand old age of 63, just four years before his death, Karl Blossfeldt produced his first photography book, the internationally best-selling Urformen der Kunst (later translated into English as Art Forms in Plants). The book’s 120 plates display Blossfeldt’s remarkable photographs of plants – varieties from Equisetum hyemale (Winter Horsetail) to Tellima grandiflora (Fringe cups) — all captured in extraordinary detail, as if under the microscope, frozen into new forms almost beyond recognition. Born in 1865 in Germany’s Harz Mountains, Karl Blossfeldt lived a childhood in the open air. Biologists learn how plants synthesize their growth hormone auxin Biologists at the University of California, San Diego have succeeded in unraveling, for the first time, the complete chain of biochemical reactions that controls the synthesis of auxin, the hormone that regulates nearly all aspects of plant growth and development. Their discovery, detailed in a paper in this week's online edition of the Proceedings of the National Academy of Sciences, will allow agricultural scientists to develop new ways to enhance or manipulate auxin production to improve the growth and yield of crops and other plants. More than a century ago, Charles Darwin noticed that plants produced a substance that made them bend toward light, a hormone called auxin that biologists have since found to be essential not only in regulating plant growth but also in patterning their development. In 2006, a team of San Diego researchers headed by Yunde Zhao, an associate professor of biology at UC San Diego, discovered a family of 11 genes involved in the synthesis of auxin.

Electricity from the marshes An unexpected source of new, clean energy has been found: the Plant-Microbial Fuel Cell that can generate electricity from the natural interaction between living plant roots and soil bacteria. The technique already works on a small scale and will soon be applied in larger marshland areas throughout the world. On 23 November, researcher Marjolein Helder will defend her PhD research on generating electricity via plants at Wageningen University, part of Wageningen UR. She has also founded a spin-off company called Plant-e with her colleague David Strik.

Uli Westphal The Cultivar Series Since the dawn of agriculture we have shaped and transformed a broad number of organisms towards our needs, while at the same time promoting their survival and geographic range. Through breeding and artificial selection we have developed a seemingly infinite diversity of shapes and colors from the wild ancestors of today's domesticated plants. However, since the industrialization of agriculture our focus has shifted to only a few modern, high yielding, robust, 'good looking', uniform and predictable varieties. Scientists invent transparent soil to reveal the secret life of plants Lettuce grown in transparent soil developed by researchers at the James Hutton Institute and the University of Abertay Dundee in Scotland Most people’s image of plants is actually upside down. For most of our photosynthetic friends, the majority of the plant is underground in the form of an intricate system of roots. The bit that sticks up is almost an afterthought. That’s a problem for scientists trying to study plants because growing them in media that allow you to see the roots, such as hydroponics, doesn't mimic real soil very well.

logy Magazine Atmospheric oxygen really took off on our planet about 2.4 billion years ago during the Great Oxygenation Event. At this key juncture of our planet’s evolution, species had either to learn to cope with this poison that was produced by photosynthesizing cyanobacteria or they went extinct. It now seems strange to think that the gas that sustains much of modern life had such a distasteful beginning. So how and when did the ability to produce oxygen by harnessing sunlight enter the eukaryotic domain, that includes humans, plants, and most recognizable, multicellular life forms? One of the fundamental steps in the evolution of our planet was the development of photosynthesis in eukaryotes through the process of endosymbiosis. This crucial step forward occurred about 1.6 billion years ago when a single-celled protist captured and retained a formerly free-living cyanobacterium.

Pictures: Flowers Glow Under UV-Induced Visible Fluorescence Great Last Minute Gifts- Give a Subscription to National Geographic Ultraviolet light reveals alien-like colors and fairy sparkles in seemingly normal plants. Photographs by Craig P. Burrows Lettuce-Bot can kill weeds with 98% accuracy Humans have a pesky way of increasing in number no matter what we do. All those people also consume resources, and the strain on global food supplies will only increase in the future. As everyone scrambles to find a solution to this problem, we come back to one of our favorite problem-solvers: robots. First plants caused ice ages, new research reveals New research reveals how the arrival of the first plants 470 million years ago triggered a series of ice ages. Led by the Universities of Exeter and Oxford, the study is published in Nature Geoscience. The team set out to identify the effects that the first land plants had on the climate during the Ordovician Period, which ended 444 million years ago. During this period the climate gradually cooled, leading to a series of 'ice ages'. This global cooling was caused by a dramatic reduction in atmospheric carbon, which this research now suggests was triggered by the arrival of plants.

Around the World in Rare and Beautiful Apples Inside a bright Brooklyn gallery that is plastered in photographs of apples, William Mullan is being besieged with questions. A writer is researching apples for his novel set in post-World War II New York. An employee of a fruit-delivery company, who covetously eyes the round table on which Mullan has artfully arranged apples, asks where to buy his artwork. But these aren’t your Granny Smith’s apples.

Plants and fungi play the 'underground market' Science 12 Aug 11 Micrograph of fungi colonising roots of plant host, Medicago truncatula. Image: Jan Jansa Breaking News: Monsanto To Face Biopiracy Charges In India An farm worker assorting eggplants in the Indian state of Gujarat. by Arne Hückelheim/WikicommonsAccording to an article published this month in the journal Nature Biotechnology, Monsanto is facing biopiracy charges in India. In an unprecedented decision, India's National Biodiversity Authority(NBA), a government agency, declared legal action against Monsanto (and their collaborators) for accessing and using local eggplant varieties (known as brinjal) to develop their Bt genetically engineered version1 without prior approval of the competent authorities, which is considered an act of "biopiracy."2 The journal of Nature Biotechnology reported: "An Indian government agency has agreed to sue the developers of genetically modified (GM) eggplant for violating India's Biological Diversity Act of 2002. India's National Biodiversity Authority (NBA) is alleging that the developers of India's first GM food crop--Jalna-based Maharashtra Hybrid Seeds Company (Mahyco) partnered with St.

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