Recent measurements of the branching ratios for the decays $\omega\to\pi^0\pi^0\gamma$
and $\rho^0\to\pi^0\pi^0\gamma$ lead to coupling constants of the $V\sigma\gamma$-interaction
($V$ is a vector meson) one order of magnitude smaller than previously assumed to describe the
threshold cross section of $\gamma+p\to p+\rho^0$ and the HERMES effect. The new $g^2_{V\sigma\gamma}$
couplings are in contradiction with the predictions of the QCD sum rules, but are in good agreement
with VDM-estimation of the $\sigma\to \gamma\gamma$-width.
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