Abstract
To study the physiological role of abscisic acid (ABA) in the unicellular green alga Haematococcus pluvialis, we investigated the effect of ABA on both algal morphogenesis and carotenogenesis in liquid and plate cultures. When ABA was added to vegetative cells of H. pluvialis, red mature cyst cells with enhanced carotenogenesis rapidly appeared on agar plates in Petri dishes. We considered these conditions as drought stress. In plate culture, the morphological change from vegetative to cyst cells was prevented by the inhibitor of chloroplastic protein synthesis, chloramphenicol (CP), resulting in algal death. Exogenous ABA caused recovery of algal encystment even in the presence of CP. The relationship between ABA concentration and morphogenesis in H. pluvialis showed that a decrease in ABA coincided with cyst formation. In contrast, immature cyst cells underwent maturation accompanied by enhanced carotenogenesis in either the presence of CP or the absence of ABA. Therefore, ABA might regulate algal morphogenesis from vegetative to cyst cells, but not carotenogenesis in cyst cells of H. pluvialis. Furthermore, endogenous active oxygen species generated under drought stress were involved in all algal events, including ABA biosynthesis, encystment, and enhanced carotenogenesis. These results indicate that ABA, induced by oxidative stress, could function as a stress hormone in algal morphogenesis in H. pluvialis under drought stress.
Similar content being viewed by others
References
Addicott FT (1983) Abscisic Acid. New York: Praeger
Borowitzka MA, Huisman JM and Osborn A (1991) Culture of the astaxanthin-producing green alga Haematococcus pluvialis. 1. Effects of nutrients on growth and cell type. J Appl Phycol 3: 295–304
Boussiba S and Vonshak A (1991) Astaxanthin accumulation in the green alga Haematococcus pluvialis. Plant Cell Physiol 32: 1077–1082
Cowan AK and Rose PD (1991) Abscisic acid metabolism in salt-stressed cells of Dunaliella salina. Plant Physiol 97: 798–803
Fraser PD, Hedden P, Cooke DT, Bird CR, Schuch W and Bramley PM (1995) The effect of reduced activity of phytoene synthase on isoprenoid levels in tomato pericarp during fruit development and ripening. Planta 196: 321–326
Hirsch R, Hartung W and Gimmler H (1989) Abscisic acid content of algae under stress. Bot Acta 102: 326–334
Kakizono T, Kobayashi M and Nagai S (1992) Effect of carbon/nitrogen ratio on encystment accompanied with astaxanthin formation in a green alga, Haematococcus pluvialis. J Ferment Bioeng 74: 403–405
Kobayashi M, Kakizono T and Nagai S (1991) Astaxanthin production by a green alga, Haematococcus pluvialis accompanied with morphological changes in acetate media. J Ferment Bioeng 71: 335–339
Kobayashi M, Kakizono T, Yamaguchi K, Nishio N and Nagai S (1992) Growth and astaxanthin formation of Haematococcus pluvialis in heterotrophic and mixotrophic conditions. J Ferment Bioeng 74: 17–20
Kobayashi M, Kakizono T and Nagai S (1993) Enhanced carotenoid biosynthesis by oxidative stress in acetate-induced cyst cells of a green unicellular alga, Haematococcus pluvialis. Appl Environ Microbiol 59: 867–873
Kobayashi M, Kurimura Y and Tsuji Y (1997) Light-independent, astaxanthin production by the green microalga Haematococcus pluvialis under salt stress. Biotechnol Lett (in press)
Lee YK and Soh CW (1991) Accumulation of astaxanthin in Haematococcus lacustris (Chlorophyta). J Phycol 27: 575–577
Marsálek B, Zahradnícková H and Hronková M (1992) Extracellular production of abscisic acid by soil algae under salt, acid or drought stress. Z. Naturforsch 47c: 701–704
Moran JF, Becana M, Iturbe-Ormaetxe I, Frechilla S, Klucas RV and Aparicio-Tejo P (1994) Drought induces oxidative stress in pea plants. Planta 194: 346–352
Murata A, Suenaga H, Hideshima S, Tanaka Y and Kato F (1986) Hydroxyl radical as the reactive species in the inactivation of phages by ascorbic acid. Agric Biol Chem 50: 1481–1487
Parry AD and Horgan R (1991) Carotenoids and abscisic acid (ABA) biosynthesis in higher plants. Physiol Plant 82: 320–326
Price AH, Atherton NM and Hendry GAF (1989) Plants under drought-stress generate activated oxygen. Free Rad Res Comms 8: 61–66
Schroeder WA and Johnson EA (1993) Antioxidant role of carotenoids in Phaffia rhodozyma. J Gen Microbiol 139: 907–912
Schroeder WA and Johnson EA (1995) Singlet oxygen and peroxy radicals regulate carotenoid biosynthesis in Phaffia rhodozyma. J Biol Chem 270: 18374–18379
Schroeder WA and Johnson EA (1995) Carotenoids protect Phaffia rhodozyma against singlet oxygen damage. J Ind Microbiol 14: 502–507
Seeley SD and Powell LE (1970) Electron capture-gas chromatography for sensitive assay of abscisic acid. Anal Biochem 35: 530–533
Shaish A, Avron M, Pick U and Ben-Amotz A (1993) Are active oxygen species involved in induction of β-carotene in Dunaliella bardawil? Planta 190: 363–368
Smart CC and Trewavas AJ (1983) Abscisic-acid-induced turion formation in Spirodela polyrrhiza L. I. Production and development of the turion. Plant Cell Environ 6: 507–514
Smart CC and Trewavas AJ (1983) Abscisic-acid-induced turion formation in Spirodela polyrrhiza L. II. Ultrastructure of the turion; a stereological analysis. Plant Cell Environ 6: 515–522
Smart CC and Trewavas AJ (1984) Abscisic-acid-induced turion formation in Spirodela polyrrhiza L. III. Specific changes in protein synthesis and translatable RNA during turion development. Plant Cell Environ 7: 121–132
Tietz A, Ruttkowski U, Köhler R and Kasprik W (1989) Further investigations on the occurrence and the effects of abscisic acid in algae. Biochem Physiol Pflanzen 184: 259–266
Todoroki Y, Hirai N and Ohigashi H (1995) Synthesis, biological activity and metabolism of (S)-(+)-3′-fluoroabscisic acid. Tetrahedron 51: 6911–6926
Young A (1993) Factors that affect the carotenoid composition of higher plants and algae. In: Young A and Britton G (eds) Carotenoids in photosynthesis, pp 160–205. London: Chapman & Hall
Zeevaart JAD and Creelman RA (1988) Metabolism and physiology of abscisic acid. Annu Rev Plant Physiol Plant Mol Biol 39: 439–473
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kobayashi, M., Hirai, N., Kurimura, Y. et al. Abscisic acid-dependent algal morphogenesis in the unicellular green alga Haematococcus pluvialis. Plant Growth Regulation 22, 79–85 (1997). https://doi.org/10.1023/A:1005862809711
Issue Date:
DOI: https://doi.org/10.1023/A:1005862809711