Acta Physiol Plant 39(3):72īowler C, Slooten L, Vandenbranden S, De Rycke R, Botterman J, Sybesma C, van Montagu M, Inze D (1991) Manganese superoxide dismutase can reduce cellular damage mediated by oxygen radicals in transgenic plants. CR Biol 331:806–814īarreto LC, Garcia QS (2017) Accelerated ageing and subsequent imbibition affect seed viability and the efficiency of antioxidant system in macaw palm seeds. Physiol Plantarum 97:104–110īailly C, El-Maarouf-Bouteau H, Corbineau F (2008) From intercellular signalling networks to cell death: the dual role of reactive oxygen species in seed physiology. Seed Sci Res 14:93–107īailly C, Benamar A, Corbineau F, Côme D (1996) Changes in malondialdehyde content and superoxide dismutase, catalase and glutathione reductase activities in sunflower seeds as related to deterioration during accelerated aging. Elsevier, Amsterdam, pp 227–287īailly C (2004) Active oxygen species and antioxidants in seed biology. In: Kyle DJ, Osmond CB, Arntzen CJ (eds) Photoinhibition. Methods Enzymol 105:121–126Īsada K, Takahashi M (1987) Production and scavenging of active oxygen in photosynthesis. glyptostroboides seeds have a low level of vigor and poor ability to maintain vigor, which is probably associated with the inefficiency of its enzymatic antioxidative system.Īebi H (1984) Oxygen radicals in biological systems. We used germination tests, relative electrical conductivity and malondialdehyde content determination, ultrastructural observation of embryo cells, and analysis of superoxide dismutase, catalase, ascorbate peroxidase, and dehydroascorbate reductase activities during accelerated aging treatment. Our objective was to elucidate causes of the low germination rate in an effort to enhance potential for conservation of the species. The present study aimed to describe the aging mechanism of M. Consequently, population regeneration by seed is low under natural conditions, which probably contributes to the endangered status of this plant species. However, its seeds germinate at a very low percentage. Metasequoia glyptostroboides is an endangered relict plant native to China that has been widely introduced into many countries and areas around the world.
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