Phenols, proline and low-molecular thiol levels in pea (Pisum sativum) plants respond differently toward prolonged exposure to ultraviolet-B and ultraviolet-C radiations. (Articolo in rivista)

Type
Label
  • Phenols, proline and low-molecular thiol levels in pea (Pisum sativum) plants respond differently toward prolonged exposure to ultraviolet-B and ultraviolet-C radiations. (Articolo in rivista) (literal)
Anno
  • 2009-01-01T00:00:00+01:00 (literal)
Alternative label
  • Katerova, Z., Ivanov, S., Mapelli, S., Alexieva, V. (2009)
    Phenols, proline and low-molecular thiol levels in pea (Pisum sativum) plants respond differently toward prolonged exposure to ultraviolet-B and ultraviolet-C radiations.
    in Acta Physiologiae Plantarum
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Katerova, Z., Ivanov, S., Mapelli, S., Alexieva, V. (literal)
Pagina inizio
  • 111 (literal)
Pagina fine
  • 117 (literal)
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  • 31 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • ISSN 0137-5881, IF 0.807 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Acad. M. Popov Institute of Plant Physiology, BAS, Acad. G. Bonchev Str., Bl. 21, Sofia 1113, Bulgaria. Centre of Food Biology, Sofia 1592, po box 120, Bulgaria. Institute of Agricultural Biology and Biotechnology, CNR, Via Bassini 15, 20133 Milano, Italy. (literal)
Titolo
  • Phenols, proline and low-molecular thiol levels in pea (Pisum sativum) plants respond differently toward prolonged exposure to ultraviolet-B and ultraviolet-C radiations. (literal)
Abstract
  • Pea (Pisum sativum L.) seedlings were exposed to low, moderate and high regimes of ultraviolet-B (UV-B) (ld-B - 4.4, md-B - 13.3 and hd-B - 26.5 kJ m–2 d–1) or ultraviolet-C (UV-C) (ld-C - 0.1, md-C - 0.3 and hd-C - 0.6 kJ m–2 d–1) radiations. Concentrations of total phenols, free proline and low-molecular thiol groups were determined in the last formed (young) and older leaves after irradiation for 7, 10 or 14 consecutive days. Shoot length and weight did not changed markedly after 14 days of ld-B and ld-C, but reduced substantially after moderate and high regimes of UV-radiations. Proline decreased upon high doses of irradiation, while in ld-B treated plants, by contrast, an increase was observed. The reduction in total phenols and thiols was stronger after hd-B than after hd-C irradiations, although an induction was found in ld-B treated plants. In contrast to ld-B, ld-C regime led mainly to reductions or insignificant changes in proline, phenols and thiols. Therefore the stress-protection mechanisms are different for low UV-B and UV-C radiations in regard to proline, phenols and thiols. (literal)
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