Seasonal changes in the pigment composition of natural population of Gracilaria domingensis (Gracilariales, Rhodophyta)

Revista Brasileira de Farmacognosia

Pereira, Dinaelza Castelo¹  Colepicolo, Pio¹  Marinho-Soriano, Eliane¹  Trigueiro, Thiago Gaban¹  Universidade Federal do Rio Grande do Norte, Brazil¹  Universidade de São Paulo, Brazil¹ 

关键词: Gracilaria;    strain;     pigments;     phycobilins;     chlorophyll-a;    proteins;   

DOI  :  10.1590/S0102-695X2012005000075

来源: Sociedade Brasileira de Farmacognosia

【 摘 要 】

The concentrations of phycobiliproteins (phycoerythrin and phycocyanin), chlorophyll-a and total soluble proteins were determined monthly in three strains (red, green and brown) of Gracilaria domingensis (Kützing) Sonder ex Dickie, collected from natural populations on the coast of Rio Grande do Norte, Brazil. In all the strains, pigment and protein concentrations were higher in the months of less sunlight and greater nitrogen availability and decreased gradually with increased sunlight and decreased nutrient concentration. The red strain showed higher concentrations of phycoerythrin and total soluble proteins. The difference in the concentration of biochemical components over the course of the year indicates species acclimation to different environmental conditions.

【 授权许可】

Unknown