Early Earth's atmosphere was less conducive to lightning

In 1952, Stanley Miller and Harold Urey made sparks fly in a gas-filled flask meant to reflect the composition of Earth's atmosphere around 3.8 billion years ago. Their results suggested that lightning could have led to prebiotic ...

How do phytohormones regulate nitrate transport in apple?

Apple (Malus domestica) is an economically important fruit tree that is extensively planted worldwide. Nitrogen is the most important nutrient for crop productivity; effective nitrogen utilization is the key to high plant ...

Plant flowering in low-nitrogen soils: A mechanism revealed

Scientists from Japan, Europe and the USA have described a pathway leading to the accelerated flowering of plants in low-nitrogen soils. These findings could eventually lead to increases in agricultural production.

Extreme UV laser shows generation of atmospheric pollutant

An advanced laser technique has allowed researchers to observe, in real-time, the decomposition of a pollutant into atmospheric nitrous acid, which plays a key role in the formation of ozone and photochemical smog. The technique, ...

page 2 from 6