LEVEL 04 · LESSON 06
MS and WPM
See it
Murashige and Skoog (MS) medium is widely used and relatively high in total mineral salts; Woody Plant Medium (WPM) was developed for woody plant culture and differs substantially in nutrient composition. Neither name tells you that the medium is automatically correct for your exact plant.
Understand it
MS and WPM are formulation families with defined components.
Modified versions should be labeled as modifications, not silently called the original.
Research may compare full-, half-, or otherwise modified strengths.
Important boundary
A recipe labeled ‘MS’ should not silently contain a materially different formulation.
Try it
Explain the concept in your own words, then identify what plant, explant, stage, units, source, or observation context would need to be preserved before applying it.
Lesson quiz
Apply it
Connect this lesson to an actual MyTCLab record: what fields would you need in order to know later exactly what happened and why?