ISOLATION, CULTURE AND OBSERVATION OF CYTOMIXIS, OF MICROSPOROCYTES OF RYE A PRELIMINARY STUDY ON THE TRANSFER OF NUCLEI AMONG CELLS OF THE SCALE LEAF IN PINUS TABULAEFORMIS CARR. Ultrastructural Observation on the Intra- and Intercellular Microtrabecular Network of the Pollen Mother Cells in Onion (Allium cepa) The Relations Between Chromosome Aberration and the Intercellular Chromatin Migration in Pollen Mother Cells of Vicia faba Cytochemical Localization of Adenosine Triphosphataes Activity During Cytomixis in Pollen Mother Cells of David Lily and Its Relation to the Intercellular Migrating Chromatin Substance 小麦减数分裂前期I细胞凋亡的检测及其与细胞融合的关系 Polyacrylamide Gel Electro rhoresis Analysis of Actin in Pollen Mother Cells of Higher Plants