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chemosynthesis
chemosynthesis
The Oxford Pocket Dictionary of Current English
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2009
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© The Oxford Pocket Dictionary of Current English 2009, originally published by Oxford University Press 2009. (Hide copyright information)
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che·mo·syn·the·sis
/ ˌkēmōˈsin[unvoicedth]əsəs; ˌkemō-/
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n. Biol.
the synthesis of organic compounds by bacteria or other living organisms using energy derived from reactions involving inorganic chemicals, typically in the absence of sunlight. Compare with photosynthesis.
DERIVATIVES:
che·mo·syn·thet·ic
/ -sinˈ[unvoicedth]etik/ adj.
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Research on effect of limestone and gypsum on [C.sub.3]A, [C.sub.3]S and PC clinker system.(Technical report)
Magazine article from: Construction and Building Materials; 8/1/2008; ; 700+ words
; ...C.sub.3]S were prepared by chemosynthesis of a well blended mixture of analytical...high temperature. The conditions of chemosynthesis are presented in Table 1. After chemosynthesis, the samples were ground to size less...
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Stable isotope variation among the mussel Bathymodiolus childressi and associated heterotrophic fauna at four cold-seep communities in the Gulf of Mexico.(Report)
Magazine article from: Journal of Shellfish Research; 3/1/2008; ; 700+ words
; ...KEY WORDS: Bathymodiolus childressi, stable isotopes, chemosynthesis INTRODUCTION The continental slope in the Gulf of Mexico...13]C and [sup.15]N than material derived though chemosynthesis at the cold seeps. As an organism incorporates nutrients...
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Life blooms on floor of deep Siberian lake.
Magazine article from: Science News; 8/18/1990; ; 700+ words
; ...oceanic vent communities rely on a process called chemosynthesis, drawing their basic energy from chemical nutrients...fluids. Biologists now seek to determine whether chemosynthesis supports the Baikal communities, says Barbara Hecker...
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Bacteria are proof that living things can survive on ocean's bottom.(Knight Ridder Newspapers)
Newspaper article from: Knight Ridder/Tribune News Service; 8/18/2000; ; 700+ words
; ...instead of light, subsurface organisms are said to employ "chemosynthesis" instead of photosynthesis _ the familiar process by which...dioxide and water. According to Juniper, the concept of chemosynthesis provides a "startling challenge to the long-held view...
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Hydrothermal vent mussel habitat chemistry, pre- and post-eruption at 9[degrees]50' north on the East Pacific Rise.(Report)
Magazine article from: Journal of Shellfish Research; 3/1/2008; ; 700+ words
; ...filter feed (Fisher et al. 1988, Page et al. 1991). Chemosynthesis occurs through aerobic conditions with microbial oxidation...1988, Page et al. 1991), they can depend less on the chemosynthesis of microbes when sulfide levels are low. Their endosymbionts...
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A celebration of the sea.
Magazine article from: Popular Science; 5/1/1995; ; 700+ words
; ...the sea's hidden recesses. Life forms that live off the energy of the Earth instead of the sun, through the magic of chemosynthesis. And from these life forms we may better understand the origin of life on this planet and its potential on other planets...
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VOYAGE REVEALS EXTRAORDINARY LIFE AROUND DEEP-SEA GAS SEEPS
News Wire article from: US Fed News Service, Including US State News; 11/27/2006; 700+ words
; ...animals living in symbiosis with microbes that can convert these energy-rich chemicals to living matter (a form of "chemosynthesis") in the absence of sunlight. New Zealand is one of the few places in the world where at least four types of chemosynthetic...
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Clams and worms fueled by gas? (hydrocarbon seeps in ocean floor)
Magazine article from: Science News; 10/12/1985; ; 700+ words
; ...an energy source by sulfur-oxidizing bacteria that live inside of animals or are eaten by them. This process, called chemosynthesis, enables the communities to live with little or none of the sunlight required for phtosynthesis. But unlike these other...
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 "The Economist (US)")
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Dark secrets. (life without oxygen on the ocean floor)
Magazine article from: The Economist (US); 7/15/1989; 700+ words
; ...they can "breathe" dissolved sulphates instead of oxygen. The products of this exotic chemistry, a process known as chemosynthesis, are thriving bacteria and carbon dioxide. One theory holds that these chemosynthetic bacteria, thriving without oxygen...
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HISPANIC ENGINEERING, SCIENCE AND TECHNOLOGY'S LEADERSHIP DAY ENCOURAGES VALLEY YOUTH TO PURSUE SCIENCE, TECHNOLOGY, ENGINEERING, MATHEMATICS CAREERS
News Wire article from: US Fed News Service, Including US State News; 9/30/2009; 700+ words
; ...documented. "There were creatures living in total darkness and duplicating photosynthesis in the dark - a process known as chemosynthesis," Ballard said. "Everything I've been telling you was not in any of the textbooks when I was your age. So remember...
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bacterial chemosynthesis
Book article from: A Dictionary of Earth Sciences
bacterial chemosynthesis See CHEMOSYNTHESIS .
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chemosynthesis
Book article from: The Columbia Encyclopedia, Sixth Edition
chemosynthesis process in which carbohydrates are manufactured from carbon dioxide and water using chemical nutrients as the energy source, rather...
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chemoautotroph
Book article from: A Dictionary of Biology
chemoautotroph See autotrophic nutrition ; chemosynthesis .
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primary productivity
Book article from: A Dictionary of Plant Sciences
...substances that may be used as food materials. Gross primary productivity (GPP) is the total rate of photosynthesis and chemosynthesis, including that portion of the organic material produced that is used in respiration during the measurement period. Net...
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bacteria
Book article from: The Columbia Encyclopedia, Sixth Edition
...normal flora" of the human body. Autotrophic bacteria manufacture their own food by the processes of photosynthesis and chemosynthesis (see autotroph ). The photosynthetic bacteria include the green and purple bacteria and the cyanobacteria . Many of the...
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