Plural form of genus name - (May/16/2011 )
Am I correct in assuming that if I want to refer to the members of the genus Bacillus in a plural sense, using "Bacilli" would be incorrect? I suppose that I must write something such as "species of Bacillus," correct? Sorry for asking what such a trivial question, but I cannot seem to find a definitive answer.
yes genus names stay as they are:
there are many Bacillus species...
or I've tons of Bacillus cells...
etc...
Taxonomically it is correct to use Bacillus spp. It is sp. for one not further defined Bacillus species (i.e. we isolated one strain of Bacillus sp.), spp. for more than one Bacillus species (like in Bacillus spp. form spores, or we isolated 5 Bacillus spp., namely....). "Species of Bacillus" is technically correct as well, but usually the shorter spp. is used.
Bacilli would be used if you are referring to e.g. more than one Bacillus, e.g. on the microscopic picture you see Bacilli forming endospores.
gebirgsziege on Mon May 16 15:25:43 2011 said:
Taxonomically it is correct to use Bacillus spp. It is sp. for one not further defined Bacillus species (i.e. we isolated one strain of Bacillus sp.), spp. for more than one Bacillus species (like in Bacillus spp. form spores, or we isolated 5 Bacillus spp., namely....). "Species of Bacillus" is technically correct as well, but usually the shorter spp. is used.
Bacilli would be used if you are referring to e.g. more than one Bacillus, e.g. on the microscopic picture you see Bacilli forming endospores.
So if were to refer to, for example, Bacillus anthracis, Bacillus thuringiensis, and Bacillus subtilis, as Bacilli, this would be correct? As long as "Bacilli" is capitalized and italicized this would differentiate it from both the taxonomic class and the name for rod-shaped bacteria?
No, if you are refering to a list of genera you need to use "Bacillus spp." or "different species of Bacillus" or "Bacillus species"
"bacilli" can only be used when you are referring to a number of individual Bacillus sp(p). cells.