Project description:A proteomic and metabolomic approach was conducted to decipher the biochemical bases of silage maize N utilization and metabolism in relation to growth and productivity. Leaf samples were collected on plants cultivated in the field, where they were subjected to optimal and low N fertilization treatments. The proteomic and metabolomic responses to low N was thus analyzed in 29 hybrids (29 different dent inbred lines crossed with the same flint inbred line). Ecophysiological and agronomic traits were measured on plants cultivated in the same fields. Multivariate analyses allowed us to connect the data obtained at these different levels of integration and to analyse the genetic variation of susceptibility to low N.
Project description:The purpose of this study was to explore the mechanism of aerobic decay of whole-plant corn silage and the effect of Neolamarckia cadamba essential oil on aerobic stability of whole-plant corn silage. Firstly, the dynamic changes of temperature, microbial community and metabolite content after aerobic exposure of whole-plant corn silage were determined, and the main microbial species and mechanism leading to aerobic spoilage of whole-plant corn silage were analyzed. The N. cadamba essential oil was extracted from fresh N. cadamba leaves by steam distillation, and the minimal inhibitory concentration, antibacterial stability and bacteriostatic mechanism of N. cadamba essential oil against undesirable microorganisms in whole-plant corn silage were determined. According to the minimum inhibitory concentration of N. cadamba essential oil on undesirable microorganisms in silage, N. cadamba essential oil was added to whole-plant corn silage to explore the effect of N. cadamba essential oil on the aerobic stability of whole-plant corn silage.
