Evidence for the involvement of ribonucleic acid in the production of F pili.

نویسندگان

  • P Fives-Taylor
  • C P Novotny
چکیده

The effects of rifampin and streptolydigin, inhibitors of ribonucleic acid (RNA) synthesis, on the production of F pili by Escherichia coli were studied by electron microscopy. The inhibition of RNA synthesis reduces the number of new pili produced by depiliated cells, but does not affect their length or the number of pili present at the time of inhibition or the retraction of pili. We suggest that the rifampin-sensitive step may be linked to the establishement of a site for pili production. Evidence is provided that chloramphenicol inhibits retraction. We suggest that retraction requires some protein whose pool size is limited.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The Ability of Cellulose Polysaccharide and Curli Pili Production in Uropathogenic Escherichia Coli and its Association with Biofilm Formation Intensity

Abstract        Background and Objective: the Formation of urinary infection by uropathogenic E.coli needs   numerous virulence factors and biofilm formation is among these factors. Bacteria that form biofilms express phenotype traits that appear according to the bacteria type. Cellulose is an important compound on the outside of E.coli causing bacte...

متن کامل

Assessment of Youth Involvement in Agricultural Production: The Case of Sabon-Gari Local Government Area of Kaduna State, Nigeria

This study assessed of youth involvement in agricultural production in Sabon Gari Local Government Area. The data used for this study were collected using interview schedule administered to 112 respondents who were selected through multi-stage sampling procedure. Descriptive statistics such as frequency, percentages and means were used to analyze the data. The result revealed that majority (95....

متن کامل

Unusual arsenate poisoning of the F pili of Escherichia coli.

The arsenate poisoning of R17 phage eclipse in Escherichia coli cultures grown in glycerol-containing medium has been found to be mediated by a dramatic loss in cell-associated F pili. Poisoning was very rapid and was nearly complete within 3 min at 37 C. The loss of pili was reflected by a 90% reduction in the ability of these cells to attach ribonucleic acid phage and by a reduction in the pi...

متن کامل

تمایز استرین‌های چندگانه ترایکوفایتون روبروم در بیماران مبتلا به اونیکومایکوزیس با استفاده از روش مولکولی واکنش زنجیره‌ای پلیمراز(P.C.R)

Dermatophytes are a group of keratinophilic fungi falling within the genera of epidermophyton, microsporum and trichophyton. The genus trichophyton is particularly important and complex which comprises at least 24 recognised species. Additionally, molecular strain typing of trichophyton rubrum isolated within single nail specimens from patients with onychomycosis indicates involveme...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Journal of bacteriology

دوره 125 2  شماره 

صفحات  -

تاریخ انتشار 1976