TY - JA AU - Orsenigo,M. TI - Chloroplast fine structure and morphogenesis in the japonica-2 maize mutant: 2 Vascular bundle sheath plastids SN - 0011-4529 PY - 1975/// CY - United Kingdom PB - Cambridge University Press KW - Chloroplasts KW - AGROVOC KW - Finestructure KW - Morphogenesis KW - Maize KW - Mesophyll KW - Tissue KW - Thylakoids KW - Developmental stages KW - Starch KW - Cells N2 - The vascular bundle sheath chloroplasts of japonica-2 maize plants are characterized by (1) a slower rate of plastid morphogenesis, slower even than in the mesophyll cells, and slower in the pale green tissues than in the dark green ones, so that the chloroplasts of the pale green tissues never reach the final developmental stage; (2) by a constant, often sharply marked, swelling of thylakoids, until the final stage; (3) by the complete failure to accumulate starch grains until the final stages, and (4) by the lack of typical structures in the young cells, e.g. the small crystalline prolamellar bodies. The possible events which cause these phenomena are discussed T2 - Cytobios ER -