2024-03-29T01:47:09Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/239242022-04-06T07:43:37Zcom_10261_22com_10261_1col_10261_275
00925njm 22002777a 4500
dc
Vallejo, Carmen G.
author
López, Mercedes
author
Ochoa, Pilar
author
Manzanares, Miguel
author
Garesse, Rafael
author
1996-03-01
During the early development of Artemia there is an increase in mitochondrial enzyme activities of about one order of magnitude, whereas the activities of two cytoplasmic enzymes tested as controls remain unaltered. The mitochondrial enzyme activation correlates with (i) large changes in mitochondrial morphology, (ii) a 5-fold increase in the amount of the H+-ATP synthase beta-subunit and (iii) a dramatic increase in the steady-state level of mitochondrial mRNAs, whereas mitochondrial rRNA concentrations remain mostly unchanged. In contrast, the level of mitochondrial DNA does not change significantly during the first 20 h after resumption of development. After hatching, the mitochondrial DNA content increases twice in parallel with one round of cellular division, thus indicating that mitochondrial and nuclear replication are coupled in Artemia postgastrular development. The data presented strongly suggest that mitochondrial maturation in the absence of significant mitochondrial proliferation is responsible for the dramatic increase in mitochondrial function that takes place after resumption of development in Artemia.
Biochemical Journal 314(2): 505-510 (1996)
0264-6021
http://hdl.handle.net/10261/23924
Mitochondrial differentiation during the early development of the brine shrimp Artemia franciscana