Anyone done PCR directly from cells

[Yves Bertheau]

But did you use this boiling method (or guanidine isothiocyanate method ) with
samples contaminated by polysaccharides (e.g. plant polysaccaharides).

Generally speaking do you know a method for the extraction of DNA from
infected plants ?

Thanks

                                Yves Bertheau
                                INRA Plant Pathology
                                PARIS FRANCE