biogenesis


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biogenesis

 [bi″o-jen´ĕ-sis]
the theory, opposed to spontaneous generation, that living matter always arises by the agency of preexisting living matter.

bi·o·gen·e·sis

(bī'ō-jen'ĕ-sis),
1. Term given by Huxley to the principle that life originates from preexisting life only and never from nonliving material.
2. Synonym(s): biosynthesis
3. The principle that a living organism can only originate from a living organism similar to itself.
[bio- + G. genesis, origin]

biogenesis

/bio·gen·e·sis/ (-jen´ĕ-sis)
1. origin of life, or of living organisms.
2. the theory that living organisms originate only from other living organisms.

biogenesis

(bī′ō-jĕn′ĭ-sĭs) also

biogeny

(bī-ŏj′ə-nē)
n.
1. The principle that living organisms develop only from other living organisms and not from nonliving matter.
2. Generation of living organisms from other living organisms.
4. The supposed recurrence of the evolutionary stages of a species during the embryonic development and differentiation of a member of that species. Also called recapitulation.

bi′o·ge·net′ic (-jə-nĕt′ĭk), bi′o·ge·net′i·cal (-ĭ-kəl) adj.
bi′o·ge·net′i·cal·ly adv.

biogenesis

[bī′ōjen′əsis]
Etymology: Gk, bios + genein, to produce
1 also called biogeny [bī·oj'ənē] , the doctrine that living material can originate only from preexisting life and not from inanimate matter.
2 the origin of life; ontogeny and phylogeny. Compare abiogenesis. biogenetic, adj.

biogenesis

A term of waning popularity that specifies what is now regarded as an inherent scientific truism—i.e., that all life arises from pre-existing life; this in contradistinction to spontaneous generation of life (life arising from non-pre-existing life).

bi·o·gen·e·sis

(bī'ō-jen'ĕ-sis)
1. Term given by T.H. Huxley to the principle that life originates only from preexisting life and never from nonliving material.
See: spontaneous generation, recapitulation theory
2. Synonym(s): biosynthesis.
[bio- + G. genesis, origin]

biogenesis

The recognition that complex living organisms arise only from other living organisms and do not originate by spontaneous generation, as was once believed.

biogenesis

the principle that life is propagated only by existing life, rather than by SPONTANEOUS GENERATION. The principle's original formulation was that organisms are able to generate only other forms similar to themselves, but where ALTERNATION OF GENERATIONS occurs the statement is not entirely true; biogenesis has thus come to mean that a species gives rise only to similar forms and these forms can only be derived from parents which are similar.

bi·o·gen·e·sis

(bī'ō-jen'ĕ-sis)
1. The principle that life originates from only preexisting life and never from nonliving material.
2. Synonym(s): biosynthesis.
[bio- + G. genesis, origin]

biogenesis

1. origin of life, or of living organisms.
2. the theory that living organisms originate only from other living organisms.
References in periodicals archive ?
All of CHO cell mutants showed a typical phenotype of deficiency in peroxisome biogenesis, such as the impaired protein import, no catalase latency, severely affected DHAP-ATase activity, as noted in fibroblasts from PBD patients.
Drosophila TDRD 12 ortho log is known to interact with the essential piRNA pathway factor Vreteno and regulates piRNA biogenesis in ovarian germline cells (Handler et al.
Second, Amla treatment stimulated mitochondrial biogenesis and antioxidant systems along with activation of the AMPK and Nrf2 pathways.
Thus, in the present study, we investigated the protective mechanisms of paeoniflorin against MG-induced cytotoxicity and the induction of factors regulating mitochondrial biogenesis was assessed in osteoblastic MC3T3-E1 cells.
The remaining 13 players that were suspended as part of MLB's investigation into Biogenesis, including former MVP Ryan Braun, and All-Stars Nelson Cruz, Jhonny Peralta, and Everth Cabrera all accepted suspensions without appeal and thus will all serve their suspensions in the 2013 season.
A dozen other players accepted 50-game suspensions over their links to the Biogenesis anti-aging clinic in Florida.
Nelson Cruz, Jhonny Peralta and Everth Cabrera were the All-Stars given 50 game bans for their relationship to Biogenesis of America, a Florida anti-aging clinic accused of distributing banned performance-enhancing drugs.
MLB did not specify why Braun had been suspended, though the 29-year-old is among at least 20 players in the league who have been implicated in the Biogenesis doping scandal which is being investigated by the commissioner's office.
We found that massage activated the mechanotransduction signaling pathways focal adhesion kinase (FAK) and extracellular signal-regulated kinase 1/2 (ERK1/2), potentiated mitochondrial biogenesis signaling [nuclear peroxisome proliferator-activated receptor [] coactivator 1[] (PGC-1[])], and mitigated the rise in nuclear factor [] B (NF[]B) (p65) nuclear accumulation caused by exercise-induced muscle trauma.
The study showed that massage dampened the expression of inflammatory cytokines in the muscle cells and promoted biogenesis of mitochondria, which are the energy-producing units in the cells.