| This work was carried out to characterise morphologically and ultrastructurally the banana callus, obtained from the scalp method. Genotypes of banana, cv. Prata anã, cultivated in vitro were used to induce meristems at the leaf base; subsequently, structures known as scalps were formed. For ultrastructural analysis, five samples of callus were collected, fixed in Karnovsky solution and analysed by scanning electron microscope (SEM) and transmission electron microscope (TEM). The formation of three types of callus was observed: Type 1 - transparent watery callus, Type 2 - yellow callus with small clusters, Type 3 - yellow callus with large clusters. SEM analysis showed that Type 1 callus cells were elongated and that Type 2 and Type 3 callus cells were... |
