Genome-wide identification and expression analysis of SUT gene family members in sugar beet (Beta vulgaris L.).

Sucrose transporters (SUTs) play an important role in the transmembrane transport and distribution of sucrose, and their activity has an important impact on plant growth and crop yield. In this study, the SUT gene family was identified in the whole beet genome using bioinformatics methods, and gene characteristics, subcellular localization prediction, phylogenetic evolution, promoter cis-elements and expression patterns were systematically analyzed. A total of 9 SUT gene family members were identified from in beet genome and divided into 3 different groups (group 1, group 2, and Group 3), which were unevenly distributed on 4 chromosomes. Most SUT family members contained photoresponsive and hormone-regulated response elements. Subcellular localization prediction showed that the BvSUT genes are all located in the inner membrane, and most of the terms identified through GO enrichment analysis are classified as "membrane" related. The results of qRT-PCR showed that the expression level of the BvSUT gene was significantly higher in the tuber enlargement stage (100-140 d) than in other stages. This study is the first to analyze the BvSUT gene family in sugar beet, and it provides a theoretical basis for the functional exploration and application of SUT genes in crop improvement, especially in sugar crops.

Muscle fatigue related to human posture using a brush cutter for landscape gardening: a preliminary study.

BACKGROUND: Brush cutters are widely used in Chinese landscape gardening and agricultural laboring which leads the operators being exposed to many risks. Low back pain (LBP) is particularly common and can lead to substantial personal, community and financial burdens. The aim of the presented study was to measure the activity and function of each torso muscle of the operator when using the bush cutter, so as to evaluate the muscle injury of the operator during using several common brush cutters for different landscape tasks. MATERIAL AND METHODS: The human postures of 6 workers using 2 types of brush cutters in the 3 working conditions were recorded and measured by using a surface electromyography (sEMG) system and a camera. The test results were compared by t-test and sign test. The effect of human posture on the sEMG signal of trunk muscles in different working condition were analyzed by ANOVA. RESULTS: In the 3 working conditions, except for the left trapezius muscle, the muscle load of operating the backpack brush cutter is higher than that of operating side-mounted brush cutter. When operating the side-mounted backpack brush cutter, the force on both sides of the trapezius muscle is uneven, the load of the left trapezius muscle is >25%, and the maximum value is >30%. CONCLUSIONS: The results highlighted significant differences in the effects of different working postures on the muscle activities of workers' trunk. Safe operation standards should therefore be taken to protect the exposed workers and to improve the industrial design of irrigation cutters to prevent the occurrence of occupational diseases. Med Pr. 2022;73(3):201-7.

Emotional warmth and cyberbullying perpetration attitudes in college students: Mediation of trait gratitude and empathy.

Based on Social Learning Theory and the General Aggression Model, this study aims to explore the relationship between parental emotional warmth and the cyberbullying perpetration attitudes of college students and the mediating roles of trait gratitude and empathy. Using the stratified cluster random sampling method, 1198 college students (716 boys and 482 girls with an average age of 20.44 years) were tested using the subscale of the Parenting Styles Instrument, the Basic Empathy Scale, the Gratitude Questionnaire-6, and the Cyberbullying Attitude Questionnaire. Results: Emotional warmth, trait gratitude, cognitive empathy, and affective empathy all demonstrated significantly positive relationships with each other (rs from .175 to .403, ps < 0.01) and negative correlations with cyberbullying perpetration attitudes (rs from -.137 to -.306, ps < 0.01). Emotional warmth can exert an impact on cyberbullying perpetration attitudes through three fully mediating paths: the mediating roles of trait gratitude (41.91% of the total effect), cognitive empathy (14.5% of the total effect), and the chain mediating roles of trait gratitude-cognitive empathy (19.5% of the total effect). The results may have important implications for future studies to develop effective interventions for cyberbullying.

The Mediation Role of Moral Personality Between Childhood Psychological Abuse and Cyberbullying Perpetration Attitudes of College Students.

Guided by social learning theory and general aggression model, this work aims to explore the impact of childhood psychological abuse on cyberbullying perpetration attitudes of college students and the mediating role of moral personality. Using stratified cluster random sampling method, 527 college students were tested by using the Childhood Psychological Abuse Scale, Moral Personality Adjective Evaluation Questionnaire for college students, and the revised Chinese version of Cyberbullying Attitude Questionnaire. Results: (1) Childhood psychological abuse was significantly positively correlated with cyberbullying perpetration attitudes and showed a significant negative correlation with positive moral personality traits. (2) Positive moral personality traits had a significant negative correlation with cyberbullying perpetration attitudes. (3) Positive moral personality traits had a significant mediating effect between childhood psychological abuse and cyberbullying attitudes of college students. The mediating effect accounted for 11.11% of the total effect.

[Determination of nutrient elements in Jerusalem artichoke (J. A) irrigated by various concentrations of seawater by AAS].

The present study was carried out on the determination of trace elements in J. A by AAS, which has been irrigated by various concentrations of seawater and harvested in different years. The method is rapid with good precision and accuracy. Correlation coefficients were 0.997 1-0.9997. The result suggests that J. A is rich in K, Mg and Na, specially the ratio of K to Na is very high, and the content order is K>Mg>Na>Fe>Ni>Zn>Cu>Mn with Pb, Cr and Cd being lower. In addition, some trace elements are different in various J. A. So the authors conclude that the concentration of seawater has effect on trace elements. Perhaps the method is worth much more utilization.