Analysis of fermentation processes using flow microfluorometry: Single-parameter observations of batch bacterial growth

Maytansine, a novel ansa macrolide (1), has potent anti-tumor and antimitotic activity (2, 3). It blocks cell cycle traverse in mitosis with resultant accumulation of metaphase cells (4). Inhibition of brain tubulin polymerization in vitro by maytansine has also been reported (3). The C-mitotic effect of this drug is similar to that of the well known Vinca- alkaloids, vinblastine and vincristine. This study was carried out to examine the effects of maytansine on the cell cycle traverse and the fine struc- I ture of human lymphoblasts.Log-phase cultures of CCRF-CEM human lymphoblasts were exposed to maytansine concentrations from 10-6 M to 10-10 M for 18 hrs. Aliquots of cells were removed for cell cycle analysis by flow microfluorometry (FMF) (5) and also processed for transmission electron microscopy (TEM). FMF analysis of cells treated with 10-8 M maytansine showed a reduction in the number of G1 cells and a corresponding build-up of cells with G2/M DNA content.

Download Full-text

Polymer materials in contact with drinking water: evaluation of bacterial growth stimulation with a dynamic testing approach

European journal of water quality ◽

10.1051/water/2010010 ◽

2010 ◽

Vol 41 (2) ◽

pp. 89-107 ◽

Cited By ~ 2

Author(s):

Éric Chauveheid ◽

Nadine Hansen

Keyword(s):

Drinking Water ◽

Bacterial Growth ◽

Dynamic Testing ◽

Growth Stimulation ◽

Polymer Materials ◽

Testing Approach

Download Full-text

THE STUDY OF BACTERIAL GROWTH ON LOW-DENSITY POLYETHYLENE- LIGNIN COMPOSITE

Basrah Journal of veterinary Research ◽

10.33762/bvetr.2011.55042 ◽

2011 ◽

Vol 10 (1) ◽

pp. 97-105 ◽

Cited By ~ 2

Author(s):

Nawres N. jaber

Keyword(s):

Bacterial Growth ◽

Low Density Polyethylene ◽

Low Density

Download Full-text

Mathematical modeling and parameters estimation of anaerobic fermentation processes

1999 European Control Conference (ECC) ◽

10.23919/ecc.1999.7099388 ◽

1999 ◽

Author(s):

Ivan Simeonov

Keyword(s):

Mathematical Modeling ◽

Anaerobic Fermentation ◽

Parameters Estimation ◽

Fermentation Processes

Download Full-text

The Calder´on-Zygmund Theory I: Ellipticity

10.23943/princeton/9780691162515.003.0001 ◽

2017 ◽

Author(s):

Brian Street

Keyword(s):

Classical Theory ◽

Singular Integral ◽

Singular Integrals ◽

Differential Operators ◽

Integral Operators ◽

Singular Integral Operators ◽

Single Parameter ◽

Partial Differential ◽

Translation Invariant ◽

Partial Differential Operators

This chapter discusses a case for single-parameter singular integral operators, where ρ‎ is the usual distance on ℝn. There, we obtain the most classical theory of singular integrals, which is useful for studying elliptic partial differential operators. The chapter defines singular integral operators in three equivalent ways. This trichotomy can be seen three times, in increasing generality: Theorems 1.1.23, 1.1.26, and 1.2.10. This trichotomy is developed even when the operators are not translation invariant (many authors discuss such ideas only for translation invariant, or nearly translation invariant operators). It also presents these ideas in a slightly different way than is usual, which helps to motivate later results and definitions.

Download Full-text

The Study of Bacillus Subtils Antimicrobial Activity on Some of the Pathological Isolates

International Journal of Drug Delivery Technology ◽

10.25258/ijddt.9.2.12 ◽

2019 ◽

Vol 9 (02) ◽

Author(s):

Hussein A Kadhum ◽

Thualfakar H Hasan2

Keyword(s):

Staphylococcus Aureus ◽

Pseudomonas Aeruginosa ◽

Antimicrobial Activity ◽

Bacillus Subtilis ◽

Bacterial Growth ◽

Broad Spectrum ◽

Inhibitory Activity ◽

Bacterial Pathogens ◽

Inhibitory Ability ◽

Selection Of

The study involved the selection of two isolates from Bacillus subtilis to investigate their inhibitory activity against some bacterial pathogens. B sub-bacteria were found to have a broad spectrum against test bacteria such as Staphylococcus aureus and Pseudomonas aeruginosa. They were about 23-30 mm and less against Klebsiella sp. The sensitivity of some antibodies was tested on the test samples. The results showed that the inhibitory ability of bacterial growth in the test samples using B. subtilis extract was more effective than the antibiotics used.

Download Full-text