PDF(Pubmed)
Abstract：
Continuous cropping (CC) is a common practice in agriculture, and usually causes serious economic losses due to soil degeneration, decreased crop yield and quality, and increased disease incidence, especially in medicinal plants. Continuous cropping obstacles (CCOs) are mainly due to changes in soil microbial communities, nutrient availability, and allelopathic effects. Recently, progressive studies have illustrated the molecular mechanisms of CCOs, and valid strategies to overcome them. Transcriptomic and metabolomics analyses revealed that identified DEGs (differently expressed genes) and metabolites involved in the response to CCOs are involved in various biological processes, including photosynthesis, carbon metabolism, secondary metabolite biosynthesis, and bioactive compounds. Soil improvement is an effective strategy to overcome this problem. Soil amendments can improve the microbial community by increasing the abundance of beneficial microorganisms, soil fertility, and nutrient availability. In this review, we sum up the recent status of the research on CCOs in medicinal plants, the combination of transcriptomic and metabolomics studies, and related control strategies, including uses of soil amendments, crop rotation, and intercropping. Finally, we propose future research trends for understanding CCOs, and strategies to overcome these obstacles and promote sustainable agriculture practices in medicinal plants.
摘要：
连作(CC)是农业中的一种常见做法，通常由于土壤退化而造成严重的经济损失，作物产量和质量下降，疾病发病率增加，尤其是药用植物。连作障碍(CCOs)主要是由于土壤微生物群落的变化,营养可用性，和化感作用。最近,渐进的研究已经说明了CCO的分子机制，以及克服它们的有效策略。转录组学和代谢组学分析显示，已鉴定的DEGs（不同表达的基因）和参与CCO反应的代谢物参与各种生物过程，包括光合作用,碳代谢，次级代谢产物生物合成，和生物活性化合物。土壤改良是克服这一问题的有效策略。土壤改良剂可以通过增加有益微生物的丰度来改善微生物群落，土壤肥力,和营养可用性。在这次审查中,我们总结了药用植物中CCO的研究现状，转录组学和代谢组学研究的结合，和相关的控制策略，包括土壤改良剂的使用，作物轮作,和间作。最后,我们提出了理解CCO的未来研究趋势，以及克服这些障碍并促进药用植物可持续农业实践的战略。
