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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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Genetic variation in eggplant for Nitrogen Use Efficiency under contrasting NO3^- supply

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Journal of Integrative Plant Biology 2020年第4期62卷 487-508页

作者： Antonio Mauceri laura Bassolino Antonio Lupini Franz Badeck Fulvia Rizza Massimo Schiavi laura toppino Maria Rosa Abenavoli Giuseppe L.Rotino Francesco Sunseri Dipartimento Agraria University degli Studi M editerranea di Reggio CalabriaI-89124Reggio CalabriaItaly CREA Centro di ricerca Genomica e Bioinformatica I-26836Montanaso LombardoItaly CREA Centro d i「icerca Genomicae Bioinformatica I-29017Fiorenzuolad’ArdaItaly

Eggplant(Solanum melongena L.) yield is highly sensitive to N fertilization, the excessive use of which is responsible for environmental and human health *** N input together with the selection of improved Nitrogen-Use-Efficiency(NUE) genotypes, more able to uptake, utilize, and remobilize N available in soils, can be challenging to maintain high crop yields in a sustainable agriculture. The aim of this study was to explore the natural variation among eggplant accessions from different origins, in response to Low(LN) and High(HN)Nitrate(NO3^-) supply, to identify NUE-contrasting genotypes and their NUE-related traits, in hydroponic and greenhouse pot experiments. Two eggplants, AM222 and AM22, were identified as N-use efficient and inefficient,respectively, in hydroponic, and these results were confirmed in a pot experiment, when crop yield was also evaluated. Overall, our results indicated the key role of Nutilization component(NUt E) to confer high NUE. The remobilization of N from leaves to fruits may be a strategy to enhance NUt E, suggesting glutamate synthase as a key enzyme. Further, omics technologies will be used for focusing on C-N metabolism interacting networks. The availability of RILs from two other selected NUE-contrasting genotypes will allow us to detect major genes/quantitative trait loci related to NUE.

关键词： fir Efficiency utilize

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