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

Autor(es)

Pereira, Dinaelza Castelo ^[1] ; Trigueiro, Thiago Gaban ^[2] ; Colepicolo, Pio ^[1] ; Marinho-Soriano, Eliane ^[2]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Quim, Dept Bioquim, BR-05508 Sao Paulo - Brazil

^[2] Univ Fed Rio Grande do Norte, Dept Oceanog & Limnol, BR-59014100 Natal, RN - Brazil

• Tipo de documento: Artigo Científico
• Fonte: REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY; v. 22, n. 4, p. 874-880, JUL-AUG 2012.
• Citações Web of Science: 9

Resumo

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 (Kutzing) 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. (AU)