The title, authors and abstract of Gehring et al., 1990 (Nature). Phototropism and geotropism in maize coleoptiles are spatially correlated with increases in cytosolic free calcium.
We've had a somewhat-retrospective tone lately. So... here's an older paper from the archives (1990). #Nature🌱🌾🔬🌏🚀
"For the first time, rapid changes in [Ca2+] cyt and pH cyt are correlated directly with increases in cell elongation stimulated by light and gravity."
nature.com/articles/345528a0