correlation and causation: Many students do not understand the fundamental difference between correlation and causation. In this lab, stomata density variation likely results from interacting ...

A similar genetic mechanism between flowering plants and mosses is a result of evolutionary conservation, reports an international team of researchers. They have discovered a genetic mechanism that is ...

Most studies on stomatal responses to CO2 assume that guard cells respond only to intercellular CO2 concentration and are insensitive to the CO2 concentrations in the pore and outside the leaf. If ...

Stomata react extremely fast to internal plant signals and changes in the environment. When rain is scarce, for example, the pores will close to prevent the plant from wasting water while an automatic ...

Plants know how to do a neat trick. Through photosynthesis, they use sunlight and carbon dioxide to make food, belching out the oxygen that we breathe as a byproduct. This evolutionary innovation is ...

Open (left) and closed (right) stomata found on the surface of plants' leaves, stems and other organs. Through the stomata, plants exchange oxygen and carbon dioxide, and lose more than 95 percent of ...

The first record of stomata on a non-specialized root was obtained by scanning electron microscopy of 4-d-old Pisum sativum L. In some cases subsidiary cells were trichoblasts. Stomata and the root ...

Plants constantly make trade-offs in their decisions: more light means more opportunity for photosynthesis, but then hot temperatures and dry air makes wilting more likely. Stomata - microscopic ...

An astonishing new video shows plants “breathing” in real-time — and the footage could have huge implications for how farmers feed the world in the future. The close-up clip was captured by biologists ...

In this three week lab, students use the technique of making clear nail polish impressions of leaf stomata to generate and test an hypothesis of their choice about how leaf stomata density might vary ...