The molecular laboratories offer a wide range of facilities needed for handling, preparing and analysing a wide variety of DNA and/or RNA samples. The lab is well-equipped, and in addition to the general molecular laboratory there are several specialised laboratories such as an MLII Lab, an RNA Lab and a PCR lab with UV-cupboards.

This is a systematic collection of eight plant species from five grassland sites in the Veluwe, for which some tissue from individual plants is stored at -80 °C. For each site, up to 10 individuals from each species have been sampled along a transect at two time points (late May and early August).

The foundation 'Land van Ons' has obtained a peat meadow area near Leiden to increase biodiversity in this intensively used agricultural area. The goal is not to recreate nature, but to develop sustainable agricultural use of this land with the goal of increasing biodiversity in the area and developing management strategies that optimise its ecological, economic and recreational value.

NIOO has a collection of thousands of bacterial strains isolated from different (semi-)natural and agricultural environments. Most are bacteria isolated from soils, rhizosphere or plant parts, but aquatic strains are present as well.