Tea leaves under the microscope (IMAGE) Northwestern University Caption Scanning electron microscope image of black tea leaves, magnified by 300 times. Black tea, which is wilted and fully oxidized, ...

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When clouds roll over a field or a greenhouse lamp dims, plant leaves have to choose fast. Keep pores open to grab carbon dioxide, or close them to save water. A new study has watched that choice ...

A scanning electron microscope reveals nematodes (highlighted in green) inside the spongy mesophyll of a European beech (Fagus sylvatica) leaf infected with beech leaf disease (BLD). Eggs are marked ...