Bi-staining with Safranin-O and Alcian-blue stains – methods compared

Mixed bi-stain versus 2 single stains applied serially

Sunday 28/08/2018, 4 slides used for stain-test.
All 4 slides are 10ยต sections of Potato-stem in TS.

This test is to compare the results of bi-staining using Safranin and Alcian-blue stains. Stains used are, Safranin-O 1%(aq), Alcian-blue 1%(aq) acetic-acid.

Use of a 1:1 mixture of the two stains is compares to the 'traditional' use of the 2 stains separately, Safranin first, then Alcian-blue. All staining times were 5 minutes.

Slides 3 & 4:
Safranin/Alcian-blue bi-stain mixed, 5 minute stain then DIW rinse,

Slides 5 & 6:
Safranin for 5 minutes then DIW rinse followed by Alcian-blue for 5 minutes then DIW rinse.

All 4 slides were moved from DIW rins to 50%OH, 75%OH then 95%OH before being differentiated as needed using 1% acetic-acid OH, before being rinsed to OH then Histoclear for mounting.

Slide 3 at x10

Slide 3 at x25

Slide 4 at x10

Slide 4 at x25

Slide 5 at x10

Slide 5 at x25

Slide 6 at x10

Slide 6 at x25

A quick look around the garden

Well, it rained all-day yesterday here in Cumbria, very welcome after a good 2 weeks of all-day sunshine and temperatures in the high 20s!

Today seems to be heading back towards sunshine and I thought a quick look around the garden with my camera was a good way to start a post. The garden, especially the lawn, is looking pretty brown now, but all around there are various ‘weeds’ sprouting up….

So, let’s have a look at what there is in my modest-sized gardens from the realms of British wildflowers (or as some may say – ‘weeds’) after this rather testing period of very sunny, ground-baking weather, followed by yesterday’s rainy day.