Titlebook: Responses of Plants to UV-B Radiation; Jelte Rozema,Yiannis Manetas,Lars-Olof Bj?rn Book 2001 Springer Science+Business Media Dordrecht 20

Obituary

(Poly)phenolic compounds in pollen and spores of Antarctic plants as indicators of solar UV-Bae) are described by scanning electron microscopy and light microscopy. Based on the number of pores the pollen of . is classified as periporate or polypantorate, while that of . is monoporate..Pollen of . plants, exposed to enhanced UV-B (10.6 kJ m. day. UV-B.) in a greenhouse, showed an increased

動(dòng)作謎

The direct effects of UV-B radiation on , litter decomposing at four European field sitester. . was decomposed under ambient and elevated UV-B (simulating a 15% ozone depletion) using outdoor irradiation facilities at Adventdalen, Norway (78° N), Abisko, Sweden (68° N), Amsterdam, The Netherlands (52° N,) and Patras, Greece (38° N). There was no significant effect of treatment on mass l

拋媚眼

啜泣

虛假

The growth, flower properties and demography of , exposed to enhanced UV-B radiationg a 15% ozone depletion over Patras (38.3° N, 29.1° E). Enhanced UV-B radiation had no effect on the methanol extractable UV-B absorbing capacity of leaves, phonological and morphomctric parameters of anthesis (flowering time, anthesis duration, head life span, number of heads per plant, number of t

無(wú)所不知

Short-term impacts of enhanced UV-B radiation on photo-assimilate allocation and metabolism: a possiwas conducted at Abisko Scientific Research Station, Abisko, Sweden (68° N). Tillers of the grass . were grown outdoors at levels of UV-B radiation representing 25% ozone depletion. Growth, respiration, photo-assimilate allocation and UV-B protective compounds were subsequently measured..There were

integrated

Field research on the effects of UV-B filters on terrestrial Antarctic vegetationansparent perspex screens or UV-B absorbing screens. Uncovered plots served as a control. Temperature and relative humidity were monitored during the austral summer under and outside the screens. The mean effective PSII quantum efficiency showed significant differences among the species, but not bet

JADED

epicondylitis

Consequences of depletion of stratospheric ozone for terrestrial Antarctic ecosystems: the response austral summer January—February 1999..We studied the response of the antarctic hairgrass, . to enhanced UV-B. In a climate room experiment we exposed tillers of ., collected at Léonie Island, Antarctic peninsula, to ambient and enhanced levels of UV-B radiation. In this climate room experiment with

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