TY - JOUR A1 - Döhler, Günter A1 - Zink, Joachim T1 - Effect of salinity on photosynthetic 14CO2 fixation and amino acid pools of Bellerochea yucatanensis (v. Stosch) and Thalassiosira rotula (Meunier) T2 - Zeitschrift für Naturforschung, C N2 - The marine diatoms Bellerochea yucatanensis and Thalassiosira rotula were grown at different salinities (20/25, 35, and 40/45‰ salinity (S), respectively) under normal air (0.035 vol.% CO2). No significant variations in the percentage of gross photosynthetic products (e.g. total amino acids, sugar phosphates) were found as a function of salinity during growth. The bulk of the soluble 14C-radioactivity was detected in amino acids. 14C-labelling of glutamine increased markedly with salinity. Low salt - grown algae are characterized by enhanced amino acid pools, mainly of aspartic acid, asparagine and glutamine. It was found that the tested amino acids are not involved in osmoregulation. KW - 14CO2 Fixation KW - Amino Acid Pools KW - Salinity KW - Marine Diatoms Y1 - 2014 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/81692 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-816929 SN - 0939-5075 SN - 1865-7125 VL - 40.1985 IS - 7-8 SP - 527 EP - 530 PB - Verlag der Zeitschrift für Naturforschung CY - Tübingen ER -