This is the basis for the opening and closing of a stoma, known as stomatal movement, which controls gas exchange necessary for photosynthesis and limits water loss. How do guard cells change ...

An international research team led by researchers at VIB-UGent has unraveled how the opening and closing of stomata—tiny pores on leaves—is regulated in response to high temperatures and drought.

their numbers, density and distribution on upper and lower surfaces numbers that are open and closed at any ... change Below are two methods with which stomata can be counted.

In this field of view, there are 12 stomata - nine open and three closed. The images show the fields of view of a plant leaf viewed with a microscope. Count the number of stomata in each sample.