𝔖 Bobbio Scriptorium
✦   LIBER   ✦

An ambiguous effect of colicin E3 on wall-less stable L-form cells of Escherichia coli

✍ Scribed by MUDr. J. Šmarda; Edith Schuhmann

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
233 KB
Volume
14
Category
Article
ISSN
0233-111X

No coin nor oath required. For personal study only.

✦ Synopsis

Colicin E3 has been shown t o be a n unique ribonuclease: it blocks the proteosynthesis in susceptible bacteria through the cleavage of a 3'-terininal fragment from the 16s ribosomal RNA in the 30s ribosomal subunits (SENIOR and HOLLAND 1971, BOWMAN et al. 1971 a). The role of individual surface structures of bacterial cells, mediating this effect of colicin E3 -similarly as of other colicinsi . e . the localization and function of colicin receptors, has, however, not been understood so far.

According t o the commonly accepted view, colicin receptors like those of bacteriophages are situated in the cell wall. I n fact,, component's of the cell walls of susceptible bacteria are able t o adsorb large amounts of colicins (e.g.

📜 SIMILAR VOLUMES

Studies of colicin action on wall-less s
Studies of colicin action on wall-less stable L-forms of Escherichia coli III. A colicin-tolerant mutant in a wall-less stable L-form
✍ Dr. J. Šmarda; Edith Schuhmann† 📂 Article 📅 1985 🏛 John Wiley and Sons 🌐 English ⚖ 280 KB

The conversion of a tol I11 Escherichia coli mutant, tolerant to colicins E2, E3, I a and K, into protoplast-like stable L-form makes i t sensitive to colicins E2, I a and K. I t s original sensitivity t o colicin El and tolerance to E3 are preserved in this celf form. Thus, rods of this mutant are

Studies of colicin action on wall-less s
Studies of colicin action on wall-less stable L-forms of Escherichia coli II. Growth inhibition of complete and wall-less (L-form) cells of Escherichia coli by basic colicin types
✍ Dr. J. Šmarda; Edith Schuhmann† 📂 Article 📅 1985 🏛 John Wiley and Sons 🌐 English ⚖ 404 KB

The inhibitive activity of colicins of 16 types (produced by 22 colicinogenic strains) on rods and protoplast-like stable L-formcellsof the strains Escherichia coli B, W1655 F' and W1655 Fwas compared. The results of 58 combinations tested fall into four groups (with three subgroups): 1) both cell f

Studies of colicin action on wall-less s
Studies of colicin action on wall-less stable L-forms of Escherichia coli I. Degree of attachment and of killing effect on rods and stable L-form cells
✍ Dr. J. Šmarda; Edith Schuhmann 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 423 KB

## Studies of colicin action on wall-less stable L-forms of Escherichia coli I. Degree of attachment and of killing effect on rods and stable L-form cells J. SMARDA and EDITH SCHUHMANX? (Eingeyanyen urn 27. 10.1978) h'scherichia coli strains B and K12 W 1655 F+ are able t.0 bind more lethal units