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Molecular dynamics of pre-germinative metabolism in primed eggplant(Solanum melongena L.)seeds

Horticulture Research 2020年第1期7卷 1599-1610页

作者： chiara forti Valentino Ottobrino Laura Bassolino Laura Toppino Giuseppe Leonardo Rotino Andrea Pagano Anca Macovei Alma Balestrazzi Department of Biology and Biotechnology‘Lazzaro Spallanzani’ University of PaviaPaviaItaly CREA-Research Centre for Genomics and Bioinformatics Montanaso LombardoLOItaly CREA-Research Centre for Cereal and Industrial Crops BolognaItaly Institute of Plant Genetics Polish Academy of SciencesPoznanPoland

Seed priming,a pre-sowing technique that enhances the antioxidant/DNA repair activities during the pre-germinative metabolism,still retains empirical *** explore for the first time the molecular dynamics of pre-germinative metabolism in primed eggplant(Solanum melongena L.)seeds in order to identify hallmarks(expression patterns of antioxidant/DNA repair genes combined with free radical profiles)useful to discriminate between high-and lowquality *** hydropriming protocol hereby developed anticipated(or even rescued)germination,when applied to lots with variable ***(reactive oxygen species)raised during hydropriming and dropped after *** of antioxidant/DNA repair genes was observed during hydropriming and the subsequent *** of SmOGG1(8-oxoguanine glycosylase/lyase)gene detected in primed seeds at 2 h of imbibition appeared as a promising *** the basis of these results,the investigation was restricted within the first 2 h of imbibition,to verify whether the molecular landscape was reproducible in different lots.A complex pattern of antioxidant/DNA repair gene expression emerged,reflecting the preponderance of seed lot-specific *** the low-quality eggplant seeds subjected to hydropriming showed enhanced ROS levels,both in the dry and imbibed state,and this might be a useful signature to discriminate among *** plasticity of eggplant pre-germinative metabolism stimulated by priming imposes a plethora of heterogeneous molecular responses that might delay the search for quality ***,the information hereby gained could be translated to eggplant wild relatives to speed-up their use in breeding programs or other agronomical applications.

关键词： metabolism dynamics gained

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