Symbiosis and Antagonism
نویسندگان
چکیده
منابع مشابه
9. Bacterial Associations: Antagonism to Symbiosis
In relationships too, the associations are not static and but are constantly evolving in response to their environment. It could include all degrees of repulsion and antagonisms to affinity, from tight symbiosis of bacteria with their host eukaryotic cells to more loosely bound partnerships between entirely separate organisms. The article examines some examples of interactions at different leve...
متن کاملSymbiosis
What is in store for the guppy? Variation is essential to understanding the genetics underlying biological processes. The guppy provides a huge amount of natural variation that can be studied genetically. This variation has not been produced by mutagenesis screens, but instead has been shaped by natural selection. Thus, combined with emerging genomic resources, the guppy is an ideal organism fo...
متن کاملSymbiosis-independent and symbiosis-incompetent mutants of Bdellovibrio bacteriovorus 109J.
Symbiosis-independent (Sin) mutants were isolated from the symbiosis-dependent and symbiosis-competent (Sdcomp+) Bdellovibrio bacteriovorus 109J. Independently isolated Sin mutants were examined for their symbiosis competence and most were found to be comp+. Bdellovibrios comp- were selected from the Sincomp+ mutants. The Sincomp+ bdellovibrios are always at a selective disadvantage, either aga...
متن کاملSymbiosis, Synergy and Modularity: Introducing the Reciprocal Synergy Symbiosis Algorithm
Symbiosis, the collaboration of multiple organisms from different species, is common in nature. A related phenomenon, symbiogenesis, the creation of new species through the genetic integration of symbionts, is a powerful alternative to crossover as a variation operator in evolutionary algorithms. It has inspired several previous models that use the repeated composition of pre-adapted entities. ...
متن کاملSymbiosis and Attachment Hunger
This article examines the notion of symbiosis as it was originally presented (Schiff & Schiff, 1971). It is suggested that there has been a largely unstated assumption as to what symbiosis actually is: that is, it has referred to the notion of attachment. Recognizing this assumption allows for a more accurate definition of symbiosis. In addition, it brings into question the notion of stimulus h...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Bifidobacteria and Microflora
سال: 1990
ISSN: 0286-9306,1884-5126
DOI: 10.12938/bifidus1982.9.1_5