What does rotenone do to the electron transport chain?

Rotenone, a botanical pesticide, is an inhibitor of one of the enzymes of Complex I of the electron transport chain. In the presence of this insecticide, electrons from NADH cannot enter the electron transport chain, resulting in the an inability to produce ATP from the oxidation of NADH.

What is rotenone effect on cellular respiration?

Rotenone interrupts aerobic cellular respiration by blocking electron transport in mitochondria through the inhibition of the enzyme NADH ubiquitone reductase, which prevents the availability of oxygen for cellular respiration.

Is rotenone water soluble?

Solubility: Soluble in DMSO or 100% ethanol; slightly soluble in water.

What is the mechanism of action of rotenone?

Rotenone acts as a strong inhibitor of complex I of the mitochondrial respiratory chain (MRC). The mechanism of action (MOA) comprises inhibition of electron transfer from the iron-sulfur centers in complex I to ubiquinone, leading to a blockade of oxidative phosphorylation with limited synthesis of ATP2.

What is the meaning of rotenone?

Definition of rotenone : a crystalline insecticide C23H22O6 obtained from the roots of several tropical plants (such as a derris) that is highly toxic to fish but is of low toxicity to warm-blooded animals and is used especially in home gardens.

How does rotenone affect glycolysis?

Rotenone lowered glucose by promoting glycolysis and inhibiting hepatic glucose output in vitro. To explore the hypoglycaemic effect of rotenone, anaerobic respiration indicated by lactate release in HepG2 hepatocytes and C2C12 myotubes was also measured (n = 4–8/group).

How does rotenone affect metabolism?

We conclude that rotenone and antimycin A inhibit the sodium-dependent transport of fluid, phosphate, and glucose by blocking mitochondrial ATP production. Furthermore, the inhibition of mitochondrial oxidative metabolism and the inhibition of net sodium transport are closely correlated.

Is rotenone safe for humans?

The World Health Organization classifies rotenone as moderately hazardous because it may be absorbed by ingestion or inhalation. Inhalation of concentrated rotenone in the powder form is the most direct threat to humans, and caution is required during handling.

What are the side effects of rotenone?

Following oral ingestion, clinical signs of rotenone toxicosis may include pharyngitis, nausea, vomiting, gastric pain, clonic convulsions, muscle tremors, lethargy, incontinence, and respiratory stimulation, followed by depression. Respiratory depression and seizures lead to hypoxemia and hypercapnia.

What is rotenone biochemistry?

Rotenone is a naturally occurring complex ketone, derived from the roots of Lonchocarpus species (Uversky, 2004). It is a commonly used pesticide and is also used in lakes and reservoirs to kill fish that are perceived as pests.

How do you get rotenone?

Rotenone is produced by extraction from the roots and stems of several tropical and subtropical plant species, especially those belonging to the genera Lonchocarpus and Derris . Some of the plants containing rotenone: Florida fishpoison tree ( Piscidia piscipula) – southern Florida, Caribbean

How does rotenone disrupt cellular respiration?

Rotenone is in the class of electron transport inhibitors, which bind at some point on the transport chain, keeping electrons from moving. This stops cellular respiration from taking place at all through that particular pathway.

How does rotenone work?

Rotenone works by interfering with the electron transport chain in mitochondria. It inhibits the transfer of electrons from iron-sulfur centers in complex I to ubiquinone. This interferes with NADH during the creation of usable cellular energy (ATP).

What does rotenone mean?

Freebase(0.00 / 0 votes)Rate this definition: Rotenone. Rotenone is an odourless, colourless, crystalline ketonic chemical compound used as a broad-spectrum insecticide, piscicide, and pesticide. It occurs naturally in the seeds and stems of several plants, such as the jicama vine plant; and the roots of several members of Fabaceae .