Senescence Meaning
Senescence is derived from the Latin word ‘senescere‘, which means “to grow weak, become exhausted, and to be in a decline”. It generally refers to the process of growing old and is associated with decay and mortality or decreased fertility with age. It can occur at the cellular level or affect the entire organism. Senescence causes a gradual functional decline across organ systems, leading to progressive deterioration and tissue dysfunction. The process is influenced by genetic and environmental factors.
In humans, senescence starts in their 20s, at the peak of their physical strength, and continues for the rest of their life. senescence in plants is the final stage of development. Some common examples of senescence that most people experience as they age include: wrinkles, worsening eyesight, and worsening hearing. During this stage, the plant reclaims the cellular building blocks that have been deposited in the leaves and other parts of the plant during growth.
What is Senescence? – Senescent Cells And Senescence In Plants
Senescence is the process by which cells stop dividing and enter a state of permanent growth arrest without undergoing cell death. Senescence cells get old and weaken, causing a decline in tissue function and decay. Senescence in plants is a programmed death of leaves as part of developmental cycles. In animals, senescent cells contribute to aging and age-related diseases.
Senescence can be induced by unrepaired DNA damage or other cellular stresses. It plays a role in normal development, maintains tissue homeostasis, and limits tumor progression. In this article, we will read about what is senescence, its causes, and effects, senescent cells, the different types of senescence in plants, theories of aging, factors affecting senescence, and its importance.
Table of Content
- Senescence Definition
- Senescence Meaning
- Senescent Cells
- Causes of Senescence
- Types of Senescence
- Theories of Aging
- Effects of Senescence
- Factors that Influence the Senescence in Plants
- Importance of Senescence
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