Ultraviolet-B-effects on plants: Spectra of harmful effects, primary damage and UV protective mechanisms
Creators
- 1. Freiburg Univ. (Germany, F.R.). Inst. fuer Biologie 2
Description
In two model systems of higher plants, damage caused by ultraviolet-B-radiation was analysed as to its mechanism of action and the spectral quantum efficiency. These investigations were to provide information on the relevance of such UV effects in cases of increased ultraviolet-B-irradiation owing to the destruction of ozone. The results indicate the very high tolerance of the plants to ultraviolet-B-radiation which obviously is the result of very effective protective mechanisms, and show at the same time that potential damage must already be reckoned with, given the current share of ultraviolet-B-radiation in solar radiation. Should ultraviolet-B-radiation be increased, then indirect damage to the plant from the destruction of ultraviolet protective mechanisms through UV-B-radiation will probably constitute a particular risk. (orig./MG)
Availability note (English)
MF available from INIS under the Report Number.Abstract (German)
An zwei Modellsystemen hoeherer Pflanzen wurden UV-B-Schaeden hinsichtlich des Wirkungsmechanismus und der spektralen Quantenwirksamkeit analysiert. Mit diesen Untersuchungen sollte Aufschluss ueber die Relevanz solcher UV-Effekte im Falle einer durch Ozonzerstoerung erhoehten UV-B-Einstrahlung gewonnen werden. Die Ergebnisse weisen auf die hohe, offensichtlich auf sehr effektive Schutzmechanismen zurueckgehende UV-B-Toleranz von Pflanzen hin und machen gleichzeitig deutlich, dass eine potentielle Schaedigung bereits durch den derzeit vorliegenden UV-B-Anteil der Sonnenstrahlung gegeben ist. Im Falle einer UV-B-Zunahme duerfte ein besonderes Risiko in einer indirekten Schaedigung der Pflanze ueber die Zerstoerung von UV-Schutzmechanismen durch UV-B zu sehen sein. (orig./MG)
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Additional details
Additional titles
- Subtitle (English)
- Final report
- Original title (German)
- UV-B-Wirkungen auf Pflanzen: Schaedigungs-Wirkungsspektren, Primaerschaeden und UV-Schutzmechanismen
- Original subtitle (German)
- Abschlussbericht.
Publishing Information
- Imprint Pagination
- 116 p.
- Report number
- GSF-BPT--4/86
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 18022573
- Subject category
- S63: RADIATION, THERMAL, AND OTHER ENVIRONMENTAL POLLUTANT EFFECTS ON LIVING ORGANISMS AND BIOLOGICAL MATERIALS; S63: RADIATION, THERMAL, AND OTHER ENVIRONMENTAL POLLUTANT EFFECTS ON LIVING ORGANISMS AND BIOLOGICAL MATERIALS;
- Descriptors DEI
- BIOLOGICAL INDICATORS; CHEMICAL RADIATION EFFECTS; DNA; OZONE; PHOTOREACTIVATION; PIGMENTS; PLANTS; RADIATION INJURIES; RADIATION PROTECTION; ULTRAVIOLET RADIATION
- Descriptors DEC
- BIOLOGICAL EFFECTS; BIOLOGICAL RADIATION EFFECTS; BIOLOGICAL RECOVERY; BIOLOGICAL REPAIR; DISEASES; ELECTROMAGNETIC RADIATION; INJURIES; NUCLEIC ACIDS; ORGANIC COMPOUNDS; RADIATION EFFECTS; RADIATIONS
Optional Information
- Contract/Grant/Project number
- Contract KBF 55