ACCUMULATION OF SECONDARY CAROTENOIDS IN CHLORELLA-ZOFINGIENSIS

被引：71

作者：

RISE, M ^{[1
]}

COHEN, E ^{[1
]}

VISHKAUTSAN, M ^{[1
]}

COJOCARU, M ^{[1
]}

GOTTLIEB, HE ^{[1
]}

ARAD, SM ^{[1
]}

机构：

[1] BAR ILAN UNIV,DEPT CHEM,IL-52100 RAMAT GAN,ISRAEL

来源：

JOURNAL OF PLANT PHYSIOLOGY | 1994年 / 144卷 / 03期

关键词：

ASTAXANTHIN; CANTHAXANTHIN; CHLORELLA ZOFINGIENSIS; SECONDARY CAROTENOIDS;

D O I：

10.1016/S0176-1617(11)81189-2

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

We have previously found that in Chlorella emersonii, grown under synergistic conditions of high irradiance and low nitrogen, chlorophyll and primary carotenoids were degraded, whereas secondary carotenoids were produced. In this study Chlorella zofingiensis was cultivated under similar conditions. Maximal growth was achieved in a culture growing under light irradiance of 150 mu mol quanta m(-2) s(-1) and a nitrogen concentration of 0.5 mg/mL of KNO3. Higher nitrogen concentrations or higher irradiance inhibited cell division. The secondary carotenoids produced were identified as canthaxanthin (about 30%) and astaxanthin (about 70%) in the form of mono- and diesters. Maximal accumulation occurred in cells starved of nitrogen and grown at a light irradiance of 300 mu mol m(-2) s(-1). Exposure of a thin layer of algal cells to sunlight resulted in de-esterification of the astaxanthin esters. It is suggested that secondary carotenoids have a photo-protective role, that is, under high light conditions they protect chlorophyll and other photosynthetic pigments against damage.

引用

页码：287 / 292

页数：6

共 24 条

[1] ACCUMULATION OF CANTHAXANTHIN IN CHLORELLA-EMERSONII [J].