NDLI: Exogenous melatonin affects photosynthesis in characeaeChara australis

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Exogenous melatonin affects photosynthesis in characeaeChara australis

Content Provider	Scilit
Author	Lazar, Dusan Murch, Susan J. Beilby, Mary J. Khazaaly, Sabah Al
Copyright Year	2013
Description	Melatonin was found in the fresh water characeae Chara australis. The concentrations (~4 μg/g of tissue) were similar in photosynthesizing cells, independent of their position on the plant and rhizoids (roots) without chloroplasts. Exogenous melatonin, added at 10 μM to the artificial pond water, increased quantum yield of photochemistry of photosystem II by 34%. The increased efficiency appears to be due to the amount of open reaction centers of photosystem II, rather than increased efficiency of each reaction center. More open reaction centers reflect better functionality of all photosynthetic transport chain constituents. We suggest that melatonin protection against reactive oxygen species covers not only chlorophyll, but also photosynthetic proteins in general.
Related Links	https://www.tandfonline.com/doi/pdf/10.4161/psb.23279?needAccess=true https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3676496/pdf
e-ISSN	15592324
DOI	10.4161/psb.23279
Journal	Plant signaling & behavior
Issue Number	3
Volume Number	8
Language	English
Publisher	Informa UK Limited
Publisher Date	2013-03-01
Access Restriction	Open
Subject Keyword	Plant Sciences Antioxidants Chlorophyll Fluorescence Characeae Melatonin Photosynthesis Reactive Oxygen Species
Content Type	Text
Resource Type	Article

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