Sökning: "XENOPUS-LAEVIS"
Visar resultat 1 - 5 av 34 avhandlingar innehållade ordet XENOPUS-LAEVIS.
1. Mitochondrial differentiation during the early development of the amphibian embryo
Sammanfattning : Mitochondria from Xenopus laevis and Ambystoma mexica- num embryos between fertilization and the beginning of feeding were studied: the former with respect to metabolic behaviour, enzyme pattern and carrier activity, and the latter with respect to morphological parameters.The metabolic behaviour of mitochondria was studied by assessing the rates of oxygen uptake in presence of various substrates. LÄS MER
2. Melanosome transfer, photoreception and toxicity assays in melanophores
Sammanfattning : Many animals such as fish and frogs have developed the ability to change colour of their skin to adapt to the environment or to signal to other individuals. This ability is due to specialised skin cells called melanophores. LÄS MER
3. Expression and Function of Human and Plant Aquaporins
Sammanfattning : The aquaporins (AQPs) belong to a family of water permeable membrane channels found in virtually all living organisms. Thirteen isoforms of mammalian AQPs are found, whereas in Arabidopsis thaliana 35 genes encoding AQPs are found. The AQPs are distributed in different organs, cell types and in different subcellular membranes. LÄS MER
4. The Structure-Function Relationship and Evolution of Deoxyribonucleoside Kinases
Sammanfattning : The synthesis of deoxyribonucleoside triphosphates (dNTPs), building blocks of DNA, can be achieved by two different pathways in the cell. One is called de novo synthesis and the other is known as salvage pathway. The de novo pathway involves synthesis of dNTPs by utilizing basic molecules like sugars, amino acids, CO2, NH3, etc. LÄS MER
5. Biophysical studies of pigment transport in frog melanophores : impedance measurements and advanced microscopy analyses
Sammanfattning : Small proteins, other molecules and large organelles are frequently transported from one location to another within cells. These transports employ cytoskeletal networks and enable cells to maintain regions with different functions and attain an asymmetrical shape. LÄS MER