Celeste Varela

8 Questions 7 Answers 0 Followers

Questions related from Celeste Varela

WGS for gram negatives. Better Illumina double read or illumina single read?

I work in gram positives (S. aureus) and lately We have done WGS illumina single read for different clinical and lab strains. The results are really good. Also I had seen publication with...

11 November 2017 3,589 2 View

What is the maximum amount of SNPs that a strain had to have to be consider isogenic with other?

Iam working with clinical strains isolated from the same hospital and patients with similar background (all CF patients in a CF center). We have the complete sequence of the strains and they are...

06 June 2017 628 3 View

HPLC mobile phase problem, can somebody help?

Hello! I am having a mobile phase problem in the HPLC-UV. Where are measuring peptidoglycan composition of S. aureus MRSA. We run the samples and the buffer used for the samples as a...

05 May 2017 3,891 9 View

Can anyone help me with some techniques for phytohormones extraction for HPLC-MS/MS?

In our laboratory we determinate phytohormones with HPLC-MS/MS and now we need to compare the routine technique with some new techniques that we found in different papers. We need to determine...

09 September 2013 3,390 2 View

Method to extract and quantify polyphenols by HPLC-MS/MS?

I would like to know the different solvents and their concentration used in HPLC.

04 April 2013 3,817 6 View

Can anybody help me with a technique for measuring abscicid acid and its metabolites of shurbs?

the aim of my study is to measure ABA and its metabolites of shurbs from Patagonia Argentina (the shurbs is Larrea divaricata). My problem is that the leaves of this shrubs have a lot of resin...

05 May 2012 3,687 1 View

Im a new member of the group

Hello: I´m from Argentina, and I´m starting my Ph.D researching about the physiology of native plants of the Patagonia Argentina. I would like to know if somebody is working about phytohormones,...

06 June 2011 8,355 2 View

Is it possible that one single compound act as enzyme activator at low concentration but as an enzyme inhibitor when the concentration increase?

Can a single compound increase the enzyme activity at low concentration (below the known inhibition concentration) and when the concentration increase start to inhibit the enzyme? By the way, it...

01 January 1970 7,118 7 View