What is the best way to determine the frequency of plant fossils in a shale matrix?

07 August 2017 3,801 2 View

How do you recgznize a Permian locality based upon palynology or plant megafossils?

It would be interesting to know the decisive criteria.in recognizing Permian localities.

01 February 2017 9,848 0 View

In modern terms, was Charles Darwin, a biologist, geologist, or something else?

In his time, Charles Darwin was a naturalist who investigated many fields of science.

08 September 2016 5,783 6 View

What is the difference between a chemical signature and a chemical fingerprint?

I think that both terms have been used in the literature. Maybe they are the same concept but maybe not.

02 March 2016 9,864 1 View

What is the difference between precision and accuracy when you are looking at analytical data?

31 December 2015 4,937 3 View

Of all the great hypotheses of the 19th and 20th Centuries which one is the greatest, either in the geological sciences, physical sciences?

Justify your choice and indicate why it is the best.

11 December 2015 2,484 6 View

What are the most reliable ways of determining the paleoclimate during the Pennsylvanian (ex Late Carboniferous) and Permian?

02 March 2015 5,303 2 View

Isolates of Hymenoscyphus fraxineus?

Dear Dr. Cai, my name is Simone Prospero and I work in the team of Phytopathology at the Swiss Federal Institute for Forest Snow and Landscape Research (WSL;...

01 March 2021 1,133 1 View

How to remove the residual PDMS on the silicon mold?

Incompletely cross-linked pdms are difficult to remove.

01 March 2021 798 3 View

The reason that the culture of white fungi Contamination with green mold(Trichoderma), the culture autoclave at121 for 15 min. What is it?

Is the period to autoclave not enough? The inoculation in a hood and flame and UV and alcohol.

27 February 2021 9,356 3 View

What is the most suitable medium of ascomycetes fungi ??

What is the most suitable medium of ascomycetes fungi ??

26 February 2021 4,413 1 View

Has anyone used the Illumina ITS1 primer sets?

Hi everyone, Illumina provides a list of primers to amplify with high taxonomic coverage the ITS1 region for further fungal sequencing, but I cannot find the exact amount necessary of each...

25 February 2021 6,969 3 View

Can 5-FOA Diffuse Through Agar?

I am preparing to do a gene knockout in the filamentous fungi Coccidioides posadasii targeting pyrG/URA3 so that 5-FOA can be used for selection pressure instead of traditional antibiotic...

16 February 2021 169 4 View

Any specific reason, how sclerotium rolfsii can grow out of Petridish?

Is it related to nutrition or any other reason? Any other fungus have similar kind of growth pattern?

09 February 2021 4,357 4 View

Where can I find Plasmopara viticola?

Hello everyone, For my research I want to infect Vitis Vinifera leaves with downy mildew-causing fungus Plasmopara viticola. Does anyone know where I could find or purchase this fungi? I am...

04 February 2021 5,720 3 View

How to store Fusarium oxysporum for long period in simple methods ?

31 January 2021 1,832 17 View

Cutoff for asv reads?

I got my fungi sequences back from Illumina Miseq sequencing and I'm wondering how many reads do you use as a cutoff? ie. do you delete anything with less than 100 reads? I can't seem to find any...

28 January 2021 5,646 4 View