GROWTH STUDIES ON CILIATES
نویسندگان
چکیده
منابع مشابه
Effects of temperature, sulfide, and food abundance on growth and feeding of anaerobic ciliates.
The trophic role of ciliates in anaerobic food webs has not been assessed experimentally. In order to obtain basic information necessary to interpret field situations, we studied the effects of temperature, sulfide concentration, and food abundance on the growth and feeding activities of two anaerobic ciliates, Plagiopyla nasuta and Metopus es. The growth rate of P. nasuta increased with temper...
متن کاملGrowth and grazing on Prochlorococcus and Synechococcus by two marine ciliates
The two most abundant marine autotrophic prokaryotes, Prochlorococcus and Synechococcus, often have different distributions in the ocean. For example, Synechococcus is restricted to the first 100 m, whereas Prochlorococcus extends much deeper in oligotrophic waters. This is in part explained by differences in adaptation to nutrient and light regimes. However, they could also be subjected to dif...
متن کاملStudies on Pneumococcus Growth Inhibition
Employing a method, described in an earlier publication, for testing the pneumococcidal activity of serum-leucocyte mixtures, a study has been made of the pneumococcus-destroying properties of the blood of a relatively susceptible animal, the rabbit, for pneumococci of low virulence for the species. It was found that rabbit serum-leucocyte mixtures possessed the power to kill avirulent pneumoco...
متن کاملStudies on Pneumococcus Growth Inhibition
By means of a method previously described for demonstrating the growth-inhibitory and pneumococcidal power of normal serum-leucocyte mixtures, a study was made to determine the action of pneumococcus soluble substance on the growth of strains of pneumococci avirulent for rabbits and cats. It was found that the presence of a very small amount of the purified soluble substance of the homologous t...
متن کاملEpigenetics of ciliates.
Research using ciliates revealed early examples of epigenetic phenomena and continues to provide novel findings. These protozoans maintain separate germline and somatic nuclei that carry transcriptionally silent and active genomes, respectively. Examining the differences in chromatin within distinct nuclei of Tetrahymena identified histone variants and established that transcriptional regulator...
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ژورنال
عنوان ژورنال: The Biological Bulletin
سال: 1940
ISSN: 0006-3185,1939-8697
DOI: 10.2307/1537821