We present the results on the study of the global and local \mathcal { M } -Z relation based on the first data available from the CALIFA survey ( 150 galaxies ) .
This survey provides integral field spectroscopy of the complete optical extent of each galaxy ( up to 2-3 effective radii ) , with enough resolution to separate individual H ii regions and/or aggregations .
Nearly \sim 3000 individual H ii regions have been detected .
The spectra cover the wavelength range between [ OII ] 3727 and [ SII ] 6731 , with a sufficient signal-to-noise to derive the oxygen abundance and star-formation rate associated with each region .
In addition , we have computed the integrated and spatially resolved stellar masses ( and surface densities ) , based on SDSS photometric data .
We explore the relations between the stellar mass , oxygen abundance and star-formation rate using this dataset .

We derive a tight relation between the integrated stellar mass and the gas-phase abundance , with a dispersion smaller than the one already reported in the literature ( \sigma _ { \Delta { log ( O / H ) } } = 0.07 dex ) .
Indeed , this dispersion is only slightly larger than the typical error derived for our oxygen abundances .
However , we do not find any secondary relation with the star-formation rate , other than the one induced due to the primary relation of this quantity with the stellar mass .
The analysis for our sample of \sim 3000 individual H ii regions confirm ( i ) the existence of a local mass-metallicity relation and ( ii ) the lack of a secondary relation with the star-formation rate .
The same analysis is done for the specific star-formation rate , with similar results .

Our results agree with the scenario in which gas recycling in galaxies , both locally and globally , is much faster than other typical timescales , like that of gas accretion by inflow and/or metal loss due to outflows .
In essence , late-type/disk dominated galaxies seem to be in a quasi-steady situation , with a behavior similar to the one expected from an instantaneous recycling/closed-box model .