The paper reports on a corpus-based study investigating the impact of frames and constructions on establishing text coherence. Partly conducted in collaboration with the International Computer Science Institute / FrameNet, Berkeley, the study is based on systematic annotations of so-called Definite Null Instantiations (DNIs). A DNI, sometimes also called anaphoric NI, is a syntactically non-instantiated core frame element (FE), whose identity can be inferred from the co(n)text. By analyzing forms and functions of DNIs in spoken discourse, I will argue that omitted core FEs are often found to be specified in adjacent sentences, yielding frame-triggered text coherence. The case study sheds light on the text-linguistic relevance of frames and constructions. At the same time it paves the way for further investigations of textual reference in a cognitive-linguistic framework.