"Boron Elgar" > wrote in message ...
> On Mon, 03 Sep 2007 15:06:27 GMT, "Dick Adams" >
> >I'd bet the the "SDJ" turns out to be quite like at least one of the others.
>
> And what would lead you to that conclusion?

1. It is very difficult to rid your kitchen of all of the sourdough
residues lurking in nooks and crannies. Even if you had no other
cultures in process, that would consititute a huge source of potential
contamination. Yes, you had some negative controls, but it was
not clear if they related to the SDJ revival attempt, as that seemed
to activate relatively late.

2. The kind of spore formation that would preserve yeasts over
many years is unlikely in bread yeasts, as those are usually, if not
always, irregular in ploidy, and cannot therefore make it through
the reduction divisions requisite to spore formation.

3. The race to fame for latter-day SDJ revival has, as far as I know,
never resulted in the distribution, by a responsible distributor, to a
panel of judges competent to determine if the alleged revived SDJ was
in any way different from the usual suspects.

So chew a while on that, #5!

--
Dicky