English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Firshein , W. (Wesleyan University, Middletown, Conn.). Effects of deoxyribonucleic acid products on respiration of virulent and avirulent pneumococci. J. Bacteriol.82: 181–186. 1961.—In the presence of deoxyribonucleic acid (DNA) + deoxyribonuclease + mixtures of deoxynucleosides and deoxynucleotides (supplement-1) which had previously been shown to enhance DNA synthesis in virulent (S) pneumococci without affecting such synthesis in avirulent (R) pneumococci, a significant enhancement of glucose oxidation was observed over control levels in S cells of types I, II, and III. In contrast, this supplement either depressed oxygen uptake or had no effect when R or weakly virulent (I) pneumococci were present. In the absence of glucose, S cells were unable to oxidize supplement-1 extensively, whereas R cells exhibited definite activity in this respect. Supplement-1 enhanced glucose oxidation specifically and was not oxidized in the process. The selective advantage produced by the DNA products in S cells could not be explained on the basis of nitrogen content, since a substance containing twice as much of this element as that found in the entire supplement did not enhance oxygen uptake to the extent that was observed with supplement-1.

EFFECTS OF DEOXYRIBONUCLEIC ACID PRODUCTS ON RESPIRATION OF VIRULENT AND AVIRULENT PNEUMOCOCCI