plant organ culture 2013-03-01T09:11:33Z BTO:0003841 BrendaTissueOBO The culture of excised organs in a suitable aseptic medium. Roots, leaves, embryos, meristems, and many other plant structures have been successfully maintained in culture. For example, chemical factors affecting sex expression have been studied using cultures of isolated flowers, and root nodule formation has been investigated in cultures of legume roots. XPMUser plant culture