NGC 3367 is a nearby isolated active galaxy that shows a radio jet , a strong bar and evidence of lopsidedness .
We present a quantitative analysis of the stellar and gaseous structure of the galaxy disk and a search for evidence of recent interaction based on new UBVRI H \alpha and JHK images and on archival H \alpha Fabry-Perot and HI VLA data .
From a coupled 1D/2D GALFIT bulge/bar/disk decomposition an ( B/D \sim 0.07-0.1 ) exponential pseudobulge is inferred in all the observed bands .
A NIR estimate of the bar strength < Q _ { T } ^ { max } ( R ) > = 0.44 places NGC 3367 bar among the strongest ones .
The asymmetry properties were studied using ( 1 ) optical and NIR CAS indexes ( 2 ) the stellar ( NIR ) and gaseous ( H \alpha , HI ) A _ { 1 } Fourier mode amplitudes and ( 3 ) the HI integrated profile and HI mean intensity distribution .
While the average stellar component shows asymmetry values close to the average found in the Local Universe for isolated galaxies , the young stellar component and gas values are largely decoupled showing significantly larger A _ { 1 } mode amplitudes suggesting that the gas has been recently perturbed .
NGC 3367 is devoided of HI gas in the central regions where a significant amount of molecular CO gas exists instead .
Our search for ( 1 ) faint stellar structures in the outer regions ( up to \mu _ { R } \sim 26 ~ { } mag~ { } arcsec ^ { -2 } ) , ( 2 ) ( H \alpha ) star-forming satellite galaxies and ( 3 ) regions with different colors ( stellar populations ) along the disk all failed .
Such an absence is interpreted using recent numerical simulations to constrain a tidal event with an LMC like galaxy to some dynamical times in the past or to a current very low mass , gas rich accretion .
We conclude that a cold accretion mode ( gas and small/dark galaxies ) may be responsible of the nuclear activity and peculiar ( young stars and gas ) morphology regardless of the highly isolated environment .
Black hole growth in bulgeless galaxies may be triggered by cosmic smooth mass accretion .