But for every rule there is an exception. Some plants are non-photosynthetic and parasitic, obtaining their food through a host. All parasitic plants have special organs called haustoria that ...

More information: Anqi Zhou et al, Evolution of interorganismal strigolactone biosynthesis in seed plants, Science (2025). DOI: 10.1126/science.adp0779 Provided by University of California - Riverside ...

“These weeds are waiting for a signal to wake up,” Nelson says. “We can give them that signal at the wrong time — when there’s no food for them — so they sprout and die. It’s like flipping their own ...