Aestivation and brain of the African lungfish - PMC
The brain of the African lungfish is able to coordinate a whole-body response to induce aestivation and to arouse from aestivation. Keywords: growth hormone, metabolic rate reduction, osmoregulation, oxidative defence, prolactin, somatostatin
Control of breathing in African lungfish (Protopterus dolloi): A ...
Jan 1, 2008 · A fascinating feature of African lungfish is their ability to survive for years without access to water (Smith, 1931). During drought, some species of African lungfish descend into the mud to form a burrow that is connected to the external environment by a narrow opening that forms a breathing tube (Smith, 1930, Greenwood, 1986).
The lungfish cocoon is a living tissue with antimicrobial …
Nov 17, 2021 · Terrestrialization is an extreme physiological adaptation by which African lungfish survive dry seasons. For months and up to several years, lungfish live inside a dry mucus cocoon that protects them from desiccation. Light and electron microscopy reveal that the lungfish cocoon is a living tissue that traps bacteria.
The NOS/NO system in an example of extreme adaptation: The African lungfish
May 1, 2020 · In the present review we summarize the changes of the NOS/NO (Nitric Oxide Synthase/Nitric Oxide) system occurring in lungs, gills, kidney, heart, and myotomal muscle of African lungfish of the genus Protopterus (P. dolloi and P. annectens), in relation to the switch from freshwater to aestivation, and vice-versa. In particular, the expression ...
Aestivation in African Lungfishes: Physiology, Biochemistry and ...
Aug 25, 2015 · In their natural habitats, African lungfishes can escape desiccation during the torrid season by burrowing into the mud and secreting mucus to form a cocoon in which it undergoes aestivation...
The West African lungfish secretes a living cocoon during …
Jul 5, 2024 · We confirmed that the paper-thin cocoon tissue of the West African lungfish is composed predominantly of living cells on both the inner and outer surfaces using fluorescent nuclear and cell integrity staining, consistent with its potential role in immune function.
brain of the African lungfish is able to coordinate a whole-body response to induce aestivation and to arouse from aestivation. The present discovery article serves to highlight a recent study conducted by the authors1 that demonstrates the dif-ferential gene expression occurring in the brain of the African lungfish, Protopterus
Aestivation and brain of the African lungfish Protopterus annectens
Jul 1, 2014 · In nature, African lungfishes can undergo aestivation during desiccation, entering into a state of corporal torpor in subterranean mud cocoon without food and water for up to 5 y. 2 In the laboratory, the authors have been able to induce African lungfishes to aestivate in pure dried mucus cocoons inside plastic boxes. 3
Differential Gene Expression in the Brain of the African Lungfish,
Aug 16, 2013 · The African lungfish, Protopterus annectens, can undergo aestivation during drought. Aestivation has three phases: induction, maintenance and arousal. The objective of this study was to examine the differential gene expression in the brain of P. annectens during the induction (6 days) and maintenance (6 months) phases of aestivation as compared ...
The West African lungfish secretes a living cocoon during …
Jul 10, 2024 · Here we developed a new more natural laboratory protocol for inducing aestivation in the West African lungfish, Protopterus annectens, and investigated the structure and function of the cocoon. We used electron microscopy and imaging of live tissue-stains to confirm that the inner and outer layers of the paper-thin cocoon are composed primarily ...