Agredano-Moreno, LT; Segura-Valdez, ML; Ubaldo, E; Ramos, CH; Martínez, E; Jiménez-García, LF; González-Jimenez, MA
(2001)
Ring-shaped bodies are found in the nucleus of Lacandonia schismatica, a rare plant with the sexual organs inverted. They are 0.5-mum-diameter structures that present an electron-dense external ring surrounding a central ...