These cells began to devise, then developed into aloin cells through enlargement of volume and vacuolization with the differentiation of metaphloem and metaxylem.
The grow progress of bulb is divided to 5 stages: probulb idiophase, probulb enlargement stage, primarybulb idiophase, bulb weight fast gain stage and bulb plenum stage.
Methods Pripheral blood analysis was done in all 20 cases with fever, angina, enlarged lymph nodes and enlargement of liver and spleen. Heterophil agglutination test was done in 15 of these 20 cases.