"Escherichia coli"
"E. coli"
"Escherichia spp"
"Escherichia spp"
"Occasionally we will use short gene symbols in articles e.g. the symbol for caeruloplasmin is CP, by scientific convention, the gene is italicised i.e. CP, whilst the protein product, CP, remains in standard typeface. This does not apply to the long name of the gene so that caeruloplasmin is the name - and written in the same typeface - for both the gene and its protein product (see also gene and protein naming)."
"The symbols for atomic number (Z) and mass number (A) are italicised by convention."
"titles of books, journals, etc"
Expected headings
"Naming organisms"
"Gene nomenclature"
"Atomic physics"
"Radiopaedia.org"
"Italics not required"