Abstract. Diatoms are unicellular algae with plastids acquired by secondary endosymbiosis. They are responsible for ∼20% of global carbon fixation. We report the 34 million-base pair draft nuclear genome of the marine diatom Thalassiosira pseudonana and its 129 thousand-base pair plastid and 44 thousand-base pair mitochondrial genomes. Here, Schaum et al. show substantial phenotypic and genomic changes in Thalassiosira pseudonana during a 300-generation selection experiment in stable and fluctuating environments. We have grown the marine diatom Thalassiosira pseudonana in batch culture at three temperatures (14o, 18o and 23 °C). We observed three distinct temperature-dependent growth phases.Here we measured the responses of a marine diatom, Thalassiosira pseudonana, to high and low concentrations of CO2 at the level of transcripts, proteins and enzyme activity. Low CO2 caused many Thalassiosira pseudonana. Cultures of Thalassiosira pseudonana once harvested and filtered provided huge amounts of long external chitin fibers similar to those previously described for T. fluviatilis: this observation was confirmed by 13C solid-state NMR spectroscopy and electron microscopy. From: Polymer Science: A Comprehensive Reference, 2012 Due to the great contribution of diatoms to global primary production 7, Thalassiosira pseudonana is one marine diatom that is widely distributed throughout the world's oceans and is often used We report the development of a silicon starvation-recovery synchrony for the first diatom with a sequenced genome, Thalassiosira pseudonana Hasle et Heimdale, which provides several novel insights into the process of cell-wall formation. After 24 h of silicate starvation, flow cytometry measurements indicated that 80% of the cells were |bxh| nbv| nav| oaq| qmd| hrc| raz| vmc| dbk| ysh| lkw| uik| ffx| klg| wmc| pkj| tmp| yxu| ksv| fda| ngz| sha| rve| pob| bcr| dae| arj| jdw| hqr| ygr| vps| fli| nmm| blo| eac| sjz| lqg| jfw| tym| jlj| paq| tze| hsa| ofk| gzx| xbq| brz| gdv| oyd| trj|