2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/127824The connection between AGB evolution of stellar populations and infrared vs. ultraviolet properties of the parent galaxies is reviewed relying on the updated lookout provided by population-synthesis theory. In particular, planetary-nebula events and hot horizontal-branch evolution are assessed in a unitary view to outline a plain general picture of galaxy spectrophotometric evolution. This will include a brief discussion of relevant phenomena such as the "UV upturn" in ellipticals and the stellar mass loss properties along the galaxy morphological sequence.8 pages and 6 figures (macro asp2006.sty included). An invited contribution to the intl. conference "From Stars to Galaxies: Building the pieces to build up the Universe" (Venezia, Italy, 16-20/Oct/2006). ASP Conf. Series, eds. A. Vallenari, R. Tantalo, L. Portinari and A. Moretti. Further info at author's web site (see http://www.bo.astro.it/~eps/home.html)Astrophysicstext