Defying one of biology’s more persistent dogmas, a potassium channel combines functions once thought to be invariably asunder. This channel, which is found in common bacteria, incorporates a subunit ...

Science, founded by Thomas A. Edison in 1880 and published by AAAS, today ranks as the world's largest circulation general science journal. Published 51 times a year, Science is renowned for its ...

This is a preview. Log in through your library . Abstract The effect of transpiration on the uptake of K, Ca, NO3 and SO4 from two strengths of culture solution by Helianthus plants was investigated.