Opuntia ficus−indica is the cactus species of greatest agronomic importance, due to its delicious fruits, but also to its stems, which are used as fodder for livestock or as a vegetable for human consumption. (Crop ecology, cultivation and uses of cactus pear, FAO 2017, https://www.fao.org/3/I7012EN/i7012en.pdf citing Alkämper, J. 1984. Chancen und Risiken im Anbau und in der Nutzung von Opuntien. Giessener Beitr. Entwicklungsforsch., 11: 9–14.; Kiesling, R. 1999a. Origen, domesticación y distribución de Opuntia ficus−indica. J. Prof. Assoc. Cactus Dev., 3: 50–59 (available at http://www.jpacd.org).; Casas, A. & Barbera, G. 2002. Mesoamerican domestication and diffusion. In P.S. Nobel, ed. Cacti: Biology and uses, pp.143–162. Berkeley, CA, USA, University of California Press. )
Drug resistance is cell tolerance to one or multiple drugs ultimately leading to treatment failure. (Acharya, Luna & Mani, Hariharasudan & Ullah, Aman & Hussain, Sana & Ali, Saeed & Ahmad, Sarfraz. (2021). Drug Resistance in Gynecologic Cancers: Findings and Underlying Mechanisms. 10.1016/B978-0-12-824299-5.00007-1.)