Journal
PHOTOSYNTHESIS RESEARCH
Volume 87, Issue 3, Pages 323-329Publisher
SPRINGER
DOI: 10.1007/s11120-005-9002-3
Keywords
energy transfer; far red light; light harvesting; uphill
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From the algal genus Ostrobium two species are known which express a chlorophyll antenna absorbing between 710 and 725 nm to a different extent. In a comparative study with these two species it is shown that quanta absorbed by this long wavelength antenna can be transferred to PS II leading to significant PS II-related electron transfer. It is documented that under monochromatic far red light illumination growth continues with rather high efficiency. The data show that the uphill-energy transfer to PS II reduces the quantum yield under white light significantly. It is discussed that this strategy of energy conversion might play a role in special environments where far red light is the predominant energy source.
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