First person – Osiris Martinez-Guzman

First Person is a series of interviews with the first authors of a selection of papers published in Journal of Cell Science, helping early-career researchers promote themselves alongside their papers. Osiris Martinez-Guzman is first author on ‘Mitochondrial–nuclear heme trafficking in budding yeast is regulated by GTPases that control mitochondrial dynamics and ER contact sites’, published in JCS. Osiris conducted the research described in this article while a PhD student in Dr Amit Reddi's lab at the Georgia Institute of Technology, Atlanta, GA. She is now a postdoc in the lab of Dr Adam Hughes at the University of Utah, Salt Lake City, UT, where she is investigating organelle communication and mitochondrial metabolism.