The Acer truncatum Bunge is a particular widespread forest tree species in northern China. VLCFAs are important to eukaryotes survival and play diverse roles throughout the development. So far, there are reports that the Acer truncatum seeds fatty acid (FA) rich in VLCFAs, but little is known about the physiological mechanism responsible for the biosynthesis. A total of approximately 37.07 Gbp was generated, it was comprehensive enough to determine the majority of the regulation VLCFAs biosynthesis genes. The 97,053 different unigenes were assembled and identified, and large numbers of EST-SSRs were determined. The expression profiles of crucial genes (KCS, KCR, HCD and ECR) involved in VLCFAs elongation of fatty acids were also studied. To our knowledge, the present study provides the first comprehensive of the transcriptome of Acer truncatum seeds. This transcriptome dataset have been made publicly available NCBI, we believe that it may provide new resource for future high-throughput gene expression of Acer truncatum seeds growth and development and will provide theoretical basic information for improving the yield of VLCFAs, especially nervonic acid.
HighlightsA visualization method for the motion of strawberry leaves in an air-assisted spray field is proposed.Strawberry leaves showed two motion states in different critical velocity ranges of the sprayer airflow.The airflow instability and the turbulence effect are considered important factors for the leaf vibrations.A strawberry leaf azimuth angle in the range of 90° to 270° can provide good deposition with smaller droplets.Abstract. The reasonable motion of crop plants in an air-assisted spray field can improve droplet deposition. Therefore, this study focuses on the motion of strawberry leaves and the droplet deposition mechanism in an air-assisted spray field. First, this study proposes a descriptive method for strawberry leaf motion in an air-assisted spray field and clarifies the important influence of strawberry leaf motion on droplet deposition. Second, an experiment was performed on the motion and droplet capture of single strawberry leaves in multi-position postures in an air-assisted spray field. The results showed that the leaves had two motion states (i.e., low amplitude with low frequency and high amplitude with high frequency) at different airflow velocities and inclination angles, and the critical airflow velocity corresponding to the two motion states was determined to be 8.7 m s-1. When the azimuth angle of the strawberry leaves is in the range of 90° to 270°, a reasonable inclination angle of the airflow and the high frequency and high amplitude vibration state of the leaves driven by the airflow will provide good deposition and canopy penetration of droplets with smaller diameters. Keywords: Air-assisted spray field, Droplet deposition, Motion, Spray, Strawberry leaves.
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