Jack will study bud development in Picrasma quassioides during his time at Weld Hill. Welcome Jack!
This species has weathered millions of years of changing environmental conditions, and despite its early origins, is the sole remaining species of its family, Austrobaileyaceae. A recent expedition and accompanying study by Ned Friedman, Juan Losada and Julien Bachelier examined prolonged embryo development in this extraordinary species.
“Plant Anatomy 2015: Development, function and evolution”, the summer course sponsored by the Arnold Arboretum and microMORPH, was featured in the newsletter of the International Association of Wood Anatomists Journal. (pdf)
Well done, Becky!
They found that there was a precise window of time, marked by specific secretory proteins, in which the stigma (female) was receptive to the pollen (male). This work was published in American Journal of Botany. (abstract)