Our intention at Ecologista Verde is to keep you informed and resolve any doubts you may have about the world around us and its nature. To know our environment, without a doubt, we must learn from the base, from the smallest but important parts, as is the case of some small parts of the plants called we are.
In this case we are going to answer questions such as: what are stomata exactly? What makes up the stoma structure? What are the characteristics of the stoma? Where are the stomata found? We invite you to discover everything with this brief but informative text about the parts of the stoma that we have created to help you better understand the evolution of plants and their function within our planet.
We begin by explaining what the stomata are and in which part of the leaf are located, as well as what their functions are. It is defined as stomata to the pores or adjustable openings that are located in the plant epidermal tissue (here you can learn more about plant tissues) and that they are structured by occlusive cells. These cells are responsible for opening and closing the stomata.
The ostiolus is an opening that communicates with the interior of the substomatic chamber, which is where the gas exchange takes place. In addition, next to each occlusive cell, there are one or two modified epidermal cells that have the role of carrying out the opening and closing of the stomata.
Therefore, we can say that the main function of stomata is to help in the process of gas exchange, essential to optimally perform photosynthesis and respiration. Remember that photosynthesis is the process by which plants transform sunlight into energy that they can use for their development and should not be confused with plant respiration. Therefore, plant respiration is understood as the process in which the stomata take carbon dioxide from the atmosphere and release the oxygen created as a resulting disposable product. In these other articles we talk about What is photosynthesis, its process and importance and the Difference between photosynthesis and respiration.
Another of the stoma functions is to carry out the perspiration process. Thanks to this, the plant can eliminate excess water, making the specimen capable of regulating the water inside it and thus being able to adapt to the climate. All this mechanism performed by the occlusive cells is known as stomatal movement.
The stomatal system It is made up of two types of specialized cells:
Finally, we also find the substomatal chamber, which is the space created between cells and which is communicated with the outside.
There are two large groups for classify the stomata of a plant: according to their attached cells and according to their origin and development.
Why do we make this classification? Well, because the leaves are where there is a greater number of stomata. However, it is also important to know that stomata are present throughout the plant epidermis, so we can also find them in stems, flowers and fruits. In fact, in some plants they can also be found at the root.
We can talk about three types of leaves according to the location of their stomata:
A curious fact is that the frequency or density of stomata can vary both due to the influence of environmental factors, as well as the morphology of the leaves and even their genetic makeup.
We also recommend learning about the types of leaves according to other classifications.
If you want to read more articles similar to Parts of the stoma, we recommend that you enter our Biology category.