How is programmed cell death used in the development of plants?

Dear Brother / Sister,

9.2.13-Programmed cell death is used in the development of plants too

Like the animal embryo, programmed cell death is used in the creation of the plant embryo. Programmed cell death is also a necessary mechanism for the normal development of plant organs. Have you ever thought about how the tiny plant roots progress through hard soil and rock? The root is a vegetative organ that connects the plant with the soil. Root cap cells protect the root tips from mechanical damage that could be caused by hard soil. Programmed cell death is also used to create the root cap.

Damaged or aging stem cap cells are quickly replaced by programmed cell death. Trachea-tracheitis, which are among the xylem elements, in plants are also created by programmed cell death. The change of mesophyll cells to trachea elements is done by programmed vacuolar cell death peculiar to plants. The cell content is rapidly digested and converted into tubular cells. Programmed cell death is used in the formation of aeration parenchyma and sclerenchyma in plants, trichome (feather) development, maturation and shedding of leaves, flowers and fruits, and development of reproductive organs.^1,2

In autumn, the Creator also collects and removes the magnificent paintings He makes every spring and the unique art exhibitions He opens with programmed cell death so that people can see the artist by looking at the art.

Programmed cell death seen during plant development is genetically controlled. However, environmental factors such as climate, etc. are also effective in the genetic control mechanism in charge of the aging of the leaves and other plant organs.^3,4

Programmed cell death in plants and animals has common morphological features. Molecular events and transcription factors that occur during the initiation, maintenance and termination of programmed cell death in plants as well as in animals have not been elucidated yet. It has not been fully understood yet whether programmed cell deaths associated with plant growth and stress factors are controlled by the same or different mechanisms.⁵

In conclusion, the programmed cell death mechanism is necessary for the existence and continuation of plant life. For instance, it is so useful and meaningful for the plants to shed their leaves in the autumn season with programmed death. When the plant sheds its leaves in autumn with programmed death, it actually prepares for birth again in the next spring. In addition, the Creator creates every plant as a magnificent work of art and every spring as a unique painting.

In autumn, He also collects and removes the magnificent paintings He makes every spring and the unique art exhibitions He opens with programmed cell death so that people can see the artist by looking at the art. One of the many goals of the Creator in doing so every year is to prevent man from taking things for granted and from heedlessness.

1.Munne-Bosch, S.,Journal of Experimental Botany, 2016, 67 (20), 5885-5886.
2.Vardar F. veÜnal M.,ActaBiologicaHungarica, 2012, 63(1), 52-66.
3.Van Hautegemet al.,Trends in PlantScience, 2015, 20, 102-113.
4.Van Durme M. ve Nowack M.K.,Current Opinion in Plant Biology, 2016, 29, 29-37.
5.Yanıket al., Marmara Fen Bilimleri Dergisi, 2018, 1, 157-166.

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