desiccation
Biology
(noun)
the state or process of drying-out
Microbiology
(noun)
the state of drying
Examples of desiccation in the following topics:
-
Desiccation
- Desiccation is the state of extreme dryness, or the process of extreme drying and can be used to control microbial growth.
- Desiccation is the state of extreme dryness, or the process of extreme drying.
- In biology and ecology, desiccation refers to the drying out of a living organism.
- After the addition of water, the bacteria will start growing again, so desiccation does not provide complete sterilization.
- Some bacteria, such as Deinococcus radiodurans and Mycobacterium, are extremely resistant to damage from prolonged desiccation while others, such as Neisseria gonorrhoeae, can survive only short periods of desiccation.
-
Plant Adaptations to Life on Land
- Desiccation, or drying out, is a constant danger for organisms exposed to air.
- Even when parts of a plant are close to a source of water, the aerial structures are prone to desiccation.
- As such, both gametes and zygotes must be protected from desiccation.
- One of these strategies is called desiccation tolerance.
- The vulnerable embryo must be sheltered from desiccation and other environmental hazards.
-
The Evolution of Seed Plants and Adaptations for Land
- Several layers of hardened tissue prevent desiccation, freeing reproduction from the need for a constant supply of water.
- Furthermore, seeds remain in a state of dormancy induced by desiccation and the hormone abscisic acid until conditions for growth become favorable.
- The whole structure is protected from desiccation and can reach the female organs without dependence on water.
-
Glycocalyx
- Capsules also contain water which protects bacteria against desiccation.
- The function of the slime layer is to protect the bacteria cells from environmental dangers such as antibiotics and desiccation.
-
Bryophytes
- They constitute the major flora of inhospitable environments like the tundra where their small size and tolerance to desiccation offer distinct advantages.
-
Zygomycota: The Conjugated Fungi
- The developing diploid zygospores have thick coats that protect them from desiccation and other hazards.
-
Characteristics of Epithelial Tissue
- Protection for the underlying tissues from radiation, desiccation, toxins, and physical trauma.
-
Firmicutes
- Many Firmicutes produce endospores, which are resistant to desiccation and can survive extreme conditions.
- They can survive without nutrients and are resistant to ultraviolet radiation, desiccation, high temperature, extreme freezing and chemical disinfectants.
-
Physical and Chemical Barriers
- Pathogens are killed or inactivated on the skin by desiccation (drying out) and by the skin's acidity.
-
Extremely Halophilic Archaea
- Most halophilic organisms cope with the high concentrations of salt by expending energy to exclude salt from their cytoplasm to avoid protein aggregation, or "salting out. " "Normal" organisms would desiccate in these conditions, losing water via osmosis out of the cytoplasm.