A tropism, especially of a plant, in response to a particular substance.
- ‘Studies of chemotropism in yeast revealed important differences in the identity of the sensory pathways involved in gradient sensing in D. discoideum and Saccharomyces cerevisiae.’
- ‘But the notion of chemotropism came to fruition only a decade later in the context of nerve regeneration.’
- ‘Here a complicated set of tropisms is involved from thigmotropism, or response to touch when the insect lights on the leaf, to a chemotropism in the secreting of digestive juices.’
- ‘This kind of chemotropism is called ‘chemorepulsion’.’
- ‘This experiment actually looks at chemotropism for potassium, which is a macronutrient, so you will need to dilute your copper sulfate solution at 1 ml into 1 liter before you begin your watering.’
We take a look at several popular, though confusing, punctuation marks.