The invention relates to a method for rapid
fluorescence detection of
polynucleotide target objects simultaneously at
room temperature and constant temperature. The method comprises the steps that at the constant temperature, single-chain binding proteins partially open parental chains of double chains of multiple templates to form single chains; recombinases are bonded with multiple pairs of primers to form complexes which are bonded to the parental chains under the action of accessory proteins, and multiple
fluorescence probes are also bonded with a
complementation region;
DNA polymerases are bonded to the 3' terminals of the primers so as to perform subchain extension; exonucleases recognize
tetrahydrofuran sites on the multiple
fluorescence probes which are under the
double chain condition, so that fluorophores and
quenching groups are separated after
digestion, and fluorescence is released; after the multiple fluorescence probes are
cut, 3'-OH ends which are originally closed due to modification of the 3' terminals of the probes are exposed, and the
DNA polymerases can further extend to form subchains; to-be-tested samples can be subjected to qualitative and semi-
quantitative determination through detecting the shape of amplification curves and the strength of fluorescence signals. The method disclosed by the invention can be used for qualitative and semi-
quantitative determination of
multiple target objects simultaneously at
room temperature and constant temperature.