Adaptations in Pigment Composition and Photosynthesis by Far Red Radiation in Chlorella pyrenoidosa
Abstract
Chlorella pyrenoidosa has been cultivated in radiation of wavelengths between 690–975 nm for several months. Absorption spectra and action spectra of photo‐synthesis have been determined for far red and “white” light brown cultures, In vivo spectrophotometric analyses and action spectra showed that fur red growth Chlorella adapted to the extreme light conditions by an increase both in absorption and photosynthesis above 700 nm. It is proposed that som of the in vivo normal chlorophyll a forms were converted to a far red absorbing chlorophyll a form, giving the far red exposed suspension an increased photosynthetic activity between 700–740 nm. The analyses of far red grown Chlorella have also shown an increased photosynthesis in the blue part of the spectrum, presumably due to a decrease in photosynthetically inactive carotenoid content. By culturing Chlorella in a “white” light gradient between 0.5 × 104 and 3.7 × 104 erg cm−2 s−1, it has been demonstrated that light intensity did not influence pigment ratios between 500–750 nm. In the blue part, however, high light levels caused increased absorption because of increased carotenoid content. Some ecological aspects of this far red effect have also been discussed.
Number of times cited: 13
- A. W. D. Larkum, R. J. Ritchie and J. A. Raven, Living off the Sun: chlorophylls, bacteriochlorophylls and rhodopsins, Photosynthetica, (2018).
- Ying Yang and Pamela Weathers, Red light and carbon dioxide differentially affect growth, lipid production, and quality in the microalga, Ettlia oleoabundans, Applied Microbiology and Biotechnology, 99, 1, (489), (2015).
- B. Koehne, G. Elli, R.C. Jennings, C. Wilhelm and H.-W. Trissl, Spectroscopic and molecular characterization of a long wavelength absorbing antenna of Ostreobium sp., Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1412, 2, (94), (1999).
- M. McKIERNAN and N. R. BAKER, Adaptation to shade of the light‐harvesting apparatus in Silene dioica, Plant, Cell & Environment, 14, 2, (205-212), (2006).
- Anastasios MELIS, Michael Spangfort and Bertil Andersson, LIGHT‐ABSORPTION AND ELECTRON‐TRANSPORT BALANCE BETWEEN PHOTOSYSTEM II AND PHOTOSYSTEM I IN SPINACH CHLOROPLASTS, Photochemistry and Photobiology, 45, 1, (129-136), (2008).
- Lisbet K. Lind, S.Roger Kalla, Anders Lönneborg, Gunnar Öquist and Petter Gustafsson, Cloning of the β‐phycocyanin gene from Anacystis nidulans , FEBS Letters, 188, 1, (27-32), (2001).
- Staffan Mellvig and Jan‐Eric Tillberg, DIURNAL VARIATIONS IN LUMINESCENCE IN Scenedesmus obtusiusculus (CHLOROPHYCEAE) INDUCED BY 3‐(3,4‐DICHLOROPHENYL)‐1,1‐DIMETHYLUREA, Photochemistry and Photobiology, 39, s1, (817-822), (2008).
- GUNNAR ÖQUIST, Light‐Induced Changes in Pigment Composition of Photosynthetic Lamellae and Cell‐Free Extracts from the Blue‐Green Alga Anacystis nidulans, Physiologia Plantarum, 30, 1, (45-48), (2006).
- J. HOARAU and J. C. LECLERC, LOW TEMPERATURE ABSORPTION SPECTRUM STUDIES: LIGHT‐INDUCED PIGMENT CHANGES IN PORPHYRIDIUM CULTURES, Photochemistry and Photobiology, 17, 6, (403-412), (2008).
- GUNNAR ÖQUIST, Changes in Pigment Composition and Photosynthesis Induced by Iron‐Deficiency in the Blue‐Green Alga Anacystis nidulans, Physiologia Plantarum, 25, 2, (188-191), (2006).
- SUNE LINDER, Photosynthetic Action Spectra of Scots Pine Needles of Different Ages from Seedlings Grown under Different Nursery Conditions, Physiologia Plantarum, 25, 1, (58-63), (2006).
- H Jupin and G Giraud, Modification du spectre d'absorption dans le rouge lointain d'une diatomee cultivee en lumiere rouge, Biochimica et Biophysica Acta (BBA) - Bioenergetics, 226, 1, (98), (1971).
- PER HALLDAL, AUTOMATIC RECORDING OF ACTION SPECTRA OF PHOTOBIOLOGICAL PROCESSES, SPECTROPHOTOMETRIC ANALYSES, FLUORESCENCE MEASUREMENTS AND RECORDING OF THE FIRST DERIVATIVE OF THE ABSORPTION CURVE IN ONE SIMPLE UNIT, Photochemistry and Photobiology, 10, 1, (23-34), (2008).
