Prof. Dr. Anna Janeczko is the head of the Department of Developmental Biology at the Franciszek Górski Institute of Plant Physiology in Krakow, Poland. She is the Guest Editor of the Special Issue “Mammalian Steroid Hormones, Ecdysteroids, and Brassinosteroids: Presence, Activity, and Receptors in Plants” at MDPI. Her research interests mainly focus on plant physiology, steroid regulator (brassinosteroid, progesterone, androstenedione, etc.) content in plants, physiological activity (improvement of crop production, mechanisms of plant stress tolerance), and practical applications. Her scientific output includes 76 publications in various journals with an h-index of 23 (Scopus, January 2024).