We consider the space of
real functions which are integrable with respect to a countably additive vector
measure with values in a Banach space. In a previous paper we showed that this
space can be any order continuous Banach lattice with weak order unit. We study a
priori conditions on the vector measure in order to guarantee that the resulting L1 is
order isomorphic to an AL-space. We prove that for separable measures with no
atoms there exists a c0-valued measure that generates the same space of integrable
functions.