What stinks? The role of hydrogen sulfide in the gut

Whoever smelt it dealt it … especially if what's been dealt smells like rotten eggs. The culprit behind that eggy stink is hydrogen sulfide (H2S), a colorless, pungent gas produced by both mammalian and bacterial cells ...

Bioenergetics of rapid pollen tube growth

Sexual reproduction of plants requires pollen to land on the stigma, which then germinates and grows pollen tubes through the style to deliver sperm cells to the ovule. Pollen tubes are the fastest-growing plant cells known. ...

Two hits to the mitochondria can cause severe anemia

Mitochondria may seem like small cogs in the complex machinery of the cell, but even little gears can drive big changes. Now, researchers from Japan have found that impairing mitochondria in two different ways can have a ...

Cell biology: How mitochondria report stress

Ludwig Maximilian University of Munich researchers have discovered the mechanism by which the protein DELE1 detects organelle stress. This offers a possible new approach for treating neurodegenerative diseases.

How some tissues can 'breathe' without oxygen

Humans need oxygen molecules for a process called cellular respiration, which takes place in our cells' mitochondria. Through a series of reactions called the electron transport chain, electrons are passed along in a sort ...

Transporter mutation alters cell energy

The cotransporter NKCC1 moves sodium, potassium and chloride ions across the cell membrane and has roles regulating cell volume, epithelial transport and neuronal excitability.

Chocolate, tea or coffee with zinc could reduce oxidative stress

Ageing and a low life expectancy are caused, at least partly, by oxidative stress. A team of researchers led by Prof. Dr. Ivana Ivanovi-Burmazovi from the Chair of Bioinorganic Chemistry at Friedrich-Alexander-Universität ...

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