Phosphorus levels determine changes in growth and biochemical composition of Chlorella vulgaris during cadmium stress
作者: Mathias Ahii ChiaAna Teresa LombardiMaria da Graça G. MelãoChristopher C. Parrish
作者单位: 1University of São Paulo
2Federal University of São Carlos
3Memorial University of Newfoundland
刊名: Journal of Applied Phycology, 2017, Vol.29 (4), pp.1883-1891
来源数据库: Springer Journal
DOI: 10.1007/s10811-017-1111-9
关键词: AlgaeChlorophytaMetalsNutrientsEcophysiologyAmino acids
英文摘要: Algae are constantly faced with several physicochemical stresses in the environment that are rarely simultaneously considered during ecotoxicological and ecophysiological studies. We investigated changes in growth and biochemical composition of Chlorella vulgaris during exposure to cadmium (0.02 and 0.1 μM Cd) under varying phosphorus (0.6, 2.3, and 230 μM P) concentrations. The cell density of the microalga was significantly lowered with decreasing P and increasing Cd concentrations. Dry weight, chlorophyll a , total carbohydrates, total lipids, and total proteins (pg cell−1) were stimulated under P limitation, and the presence of Cd further increased the level of each parameter. P limitation resulted in lower proportions of amino acids (%mol) such as ornithine, leucine, and...
原始语种摘要: Algae are constantly faced with several physicochemical stresses in the environment that are rarely simultaneously considered during ecotoxicological and ecophysiological studies. We investigated changes in growth and biochemical composition of Chlorella vulgaris during exposure to cadmium (0.02 and 0.1 μM Cd) under varying phosphorus (0.6, 2.3, and 230 μM P) concentrations. The cell density of the microalga was significantly lowered with decreasing P and increasing Cd concentrations. Dry weight, chlorophyll a , total carbohydrates, total lipids, and total proteins (pg cell−1) were stimulated under P limitation, and the presence of Cd further increased the level of each parameter. P limitation resulted in lower proportions of amino acids (%mol) such as ornithine, leucine, and...
全文获取路径: Springer  (合作)
分享到:
来源刊物:
影响因子:2.326 (2012)

×
关键词翻译
关键词翻译
  • concentrations 浓聚物
  • during 在的期间
  • vulgaris 寻常的
  • increase 增加
  • phosphorus 
  • biochemical 生物化学的
  • presence 存在
  • growth 生长
  • higher 
  • cadmium