Abnormal morphological changes

The results showed that protocorms were formed from seeds culture on the ½ MS medium supplemented with 10% potatoes extract within 8 weeks. Protocorms which were cultured on the ½ MS medium containing 30 g/l sucrose, 0.5 g/l AC, 7 g/l agar, 0.1 mg/l NAA and 1 mg/l BA were optimal for PLB formation (8.67 PLBs/sample) after 8 weeks culture. Protocorms converted into normal plants with well-developed shoots and roots on the ½ MS medium supplemented with 20 g/l sucrose, 10% potatoes extract, 0.5 g/l AC, and 7 g/l agar after about 90 days.

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Bone Marrow The bone marrow is usually normal or hypercellular, but in 20% of cases it is sufficiently hypocellular to be confused with aplasia. No single characteristic feature of marrow morphology distinguishes MDS, but the following are commonly observed: dyserythropoietic changes (especially nuclear abnormalities) and ringed sideroblasts in the erythroid lineage; hypogranulation and hyposegmentation in granulocytic precursors, with an increase in myeloblasts; and megakaryocytes showing reduced numbers or disorganized nuclei.

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Diseases of the Tongue See Table 32-4.

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