Pollination is a fundamental process for the reproduction of flowering plants, it consists of the transfer of pollen from the anthers (the male part of the flower) to the stigma (the female part), once the pollen reaches the stigma, fertilization occurs and the seed is formed. It is important to mention that pollen according to Mazparrote and Delascio (1998), is a very fine dust, usually yellow in color, although it can also be of other colors, this dust is produced by the pollen sacs found in the anthers of the flowers.
Public domain image taken from Pxhere
In this same order of ideas, it can be said that pollination is the transfer of pollen from the anther to the stigma, this process is indispensable for fertilization. For pollination to take effect, pollen can reach its destination in two ways:
- Autogamy: this process occurs in hermaphrodite flowers and consists of the pollination of a flower by means of its own pollen and this can be divided into two kinds of autogamy, the direct one where no foreign element intervenes so that the pollen reaches the stigma by itself and there is also the indirect one in which foreign elements such as wind, insects among others are required.
- Allogamy: in this process the pollen grain reaches the stigma from another flower, whether it belongs to the same flower or to another individual of the same species.
There are natural agents that are fundamental in pollination, among those are the wind, plants that are pollinated by the wind usually produce large amounts of light pollen that can be transported by air currents, water, aquatic plants can be pollinated through water, which transports pollen from one flower to another, insects, many insects, such as bees, butterflies and beetles, feed on the nectar of flowers and, in doing so, transport pollen from one flower to another, birds, some birds, such as hummingbirds, they also feed on the nectar of flowers and can pollinate plants, mammals, some mammals, such as bats, can also pollinate plants, especially those that bloom at night.
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Pollination is essential for the production of fruits and seeds in many plants, without pollination, we would not be able to enjoy many of the fruits and vegetables we consume, in addition, pollination is important for the genetic diversity of plants, since it allows the mixing of genes between different individuals. In recent decades, a decrease in pollinator populations has been observed, which has generated concern about the future of pollination, among the main threats to pollination are the destruction of forests and other natural habitats reduces the availability of food and shelter for pollinators, the use of pesticides, some pesticides can be toxic to pollinators and climate change can affect the flowering patterns of plants and the distribution of pollinators.
Taking into consideration the aforementioned, one of the ways to contribute to protecting pollination is to plant native flowers, since they are an important source of food for pollinators, avoid the use of pesticides, if it is necessary to use pesticides, it is important to choose products that are safe for pollinators and apply them carefully. Dear readers, pollination is a vital process for life on our planet. By protecting pollinators, we are ensuring food production, plant genetic diversity and the health of our ecosystem.
Thank you for reading our articles, until a next publication.
- Mazparrote, S. and Delascio, F. (1998). Botany. Biosphere Publishing House. Miranda, Venezuela.
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