I work on plant extract for seed germination assay. However, I face some issues on dissolving my plant extract. Initially, I try to use distilled water to dissolve it but my plant extract is not dissolved completely. So, I am planning to use DMSO and dilute DMSO at 1% using distilled water to dissolve my sample extract. May I know is this concentration toxic to seed germination? Or dissolve sample using pure DMSO then only do serial dilution? Any suggestion? Thanks in advance!