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  • Title: Effect of clinorotation on growth and pigment biosynthesis in etiolated barley plants.
    Author: Syvash OO, Adamchuk NI, Dovbysh EP, Zolotareva EK.
    Journal: J Gravit Physiol; 2001 Jul; 8(1):P47-8. PubMed ID: 12638619.
    Abstract:
    Altered gravity conditions (hyper- or hypogravity) leads to changes in metabolic processes in living organisms (Kordyum, 1997). One important subject of plant space biology is the investigation of the effects of microgravity conditions on the development of the photosynthetic apparatus. The impact of microgravity on the photosynthetic apparatus of plants has been studied in a number of space-flight experiments. Particularly, the Chl (a+b) content and Chl a/b ratio were determined in several experiments, however the results did not allow understanding how microgravity affects pigment apparatus of the plants since presented contradictory results [Laurinavichius et al. 1984; Volovik et al, 1999]. To elucidate how clinorotation affects pigment apparatus formation in etiolated plants, we studied morphological characteristics and pigment (chlorophyll and carotenoids) biosynthesis in the first period of greening of barley plants.
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