PHYSIOLOGICAL NITROGEN STORAGE RESPONSE OF Gracilaria Lemaneiformis UNDER NITROGEN STARVATION

摘要

Nitrogen (N) is generally considered as the critical limiting factor to algae growth in marine ecosystems. Macroalgae, influenced by the nitrogen nutrients varying with seasonal oscillations and geographic settings □ play a significant role in nitrogen utilization and storage (figure 1). N storage mainly includes free amino acids, soluble proteins and photosynthetic pigments. However, endocellular N storage could be depleted after a long period of growth under nutrient oligotrophic conditions.