abiogenesis


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abiogenesis

(ā′bī-ō-jĕn′ĭ-sĭs)
n.
The supposed development of living organisms from nonliving matter. Also called autogenesis, spontaneous generation.

a′bi·o·ge·net′ic (-jə-nĕt′ĭk), a′bi·o·ge·net′i·cal adj.
a′bi·o·ge·net′i·cal·ly adv.
a′bi·og′e·nist (-ŏj′ə-nĭst) n.

abiogenesis

[ab′ē·ōjen′əsis]
Etymology: Gk, a + bios, not life, genein, to produce
the idea that life can originate from inorganic, inanimate matter. Mid-twentieth century research by two University of Chicago chemists, Stanley Miller and Harold Urey supported the hypothesis that organic compounds essential to cellular life could be created under specific laboratory conditions. Also called spontaneous generation. Compare biogenesis. abiogenetic, adj.

abiogenesis

(1) Spontaneous generation. 
(2) The theory of spontaneous generation.

a·bi·o·gen·e·sis

(ā'bī-ō-jen'ĕ-sis)
Spontaneous origination of a living organisms directly from lifeless matter.
See also: spontaneous generation
[G. a-, without, + bios, life, + genesis, formation]

abiogenesis

The theory of ‘spontaneous generation’-the long-discarded notion that living organisms can be formed from non-living matter. Louis Pasteur's work (see PASTEURIZATION) did much to overthrow this idea which was based largely on the observation that maggots often appeared on rotting meat.

abiogenesis

see SPONTANEOUS GENERATION.
References in periodicals archive ?
However, the conditions for abiogenesis are so numerous and narrow (only a few of the many requisite singularities are mentioned in this paper), that the chance that they will occur together is remote.
Various types of energy sources were used in the abiogenesis of biogenic compounds in the possible prebiotic atmosphere, such as electric discharges, ultraviolet, and thermal energy by many workers.
Metal actinides in beach sands have been postulated to play a role in abiogenesis [6].
Lal's article notes that 'panspermia' theory propounded by Fred Hoyle and Chandra Wickramasinghe at Cardiff University 35 years ago as an alternative to abiogenesis is currently the most favoured theory of origin of life.
A hypothesis regarding endosymbiotic actinidic archaea as having evolved from an early isoprenoid organisms by abiogenesis is presented in this paper.
The metal actinides provide radiolytic energy' catalysis for oligomer formation and provide a coordinating ion for metalloenzymes all important in abiogenesis [6].
A cholesterol based abiogenesis is a more likely evolutionary option and the actinidic archaea and viroids would have evolved from it.
After all, this argument, Meyer assures us, is based only on cutting-edge science and an argument from knowledge of absence gained through a comprehensive historical survey of abiogenesis research.
Accordingly, Meyer focuses on abiogenesis in Signature, though, as we have seen, vestiges of the full argument that includes biological evolution persist within it.
This is abiogenesis, related but separate from evolution.
Yet, when what is known about life on Earth is taken away, there is no accurate sense of how probable abiogenesis is on any given planet, Spiegel said.