| Hydroxycinnamic acid derivatives in an aquatic liverwort as possible bioindicators of enhanced UV radiation. | |
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MedLine Citation:
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PMID: 17481786 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We examined, under laboratory conditions, the physiological responses of the aquatic liverwort Jungermannia exsertifolia subsp. cordifolia to artificially enhanced ultraviolet (UV) radiation for 82 days, especially considering the responses of five hydroxycinnamic acid derivatives. This species lives in mountain streams, where it is exposed to low temperatures and high UV levels, and this combination is believed to increase the adverse effects of UV. Enhanced UV radiation hardly caused any change in several physiological variables indicative of vitality, such as Fv/Fm and chlorophylls/phaeopigments ratio (OD430/OD410). Thus, this liverwort seemed to be tolerant to UV radiation, probably due to the accumulation of three UV-absorbing hydroxycinnamic acid derivatives: p-coumaroylmalic acid, 5''-(7'',8''-dihydroxycoumaroyl)-2-caffeoylmalic acid, and 5''-(7'',8''-dihydroxy-7-O-beta-glucosyl-coumaroyl)-2-caffeoylmalic acid. These compounds might serve as bioindicators of enhanced UV radiation. |
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Authors:
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M Arróniz-Crespo; E Núñez-Olivera; J Martínez-Abaigar |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2007-05-04 |
Journal Detail:
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Title: Environmental pollution (Barking, Essex : 1987) Volume: 151 ISSN: 0269-7491 ISO Abbreviation: Environ. Pollut. Publication Date: 2008 Jan |
Date Detail:
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Created Date: 2007-12-07 Completed Date: 2008-05-19 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8804476 Medline TA: Environ Pollut Country: England |
Other Details:
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Languages: eng Pagination: 8-16 Citation Subset: IM |
Affiliation:
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Universidad de La Rioja, Complejo Científico-Tecnológico, Avda. Madre de Dios 51, 26006 Logroño, La Rioja, Spain. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Biological Markers
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analysis Coumaric Acids / analysis* Environmental Exposure Environmental Monitoring / methods* Hepatophyta / chemistry*, radiation effects* Spectrophotometry Ultraviolet Rays / adverse effects* |
| Chemical | |
Reg. No./Substance:
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0/Biological Markers; 0/Coumaric Acids |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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