【摘 要】
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Plant species produce different types of allelo-pathic chemicals in nature; however, little is known about the differential regulation of plant allelopathy. Because allelopathy caused by p -hydroxybenzoic acid (pHBA) is one of the main obstacles to contin
【机 构】
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Facility Horticulture Laboratory of Universities in Shandong,Weifang University of Science and Techn
论文部分内容阅读
Plant species produce different types of allelo-pathic chemicals in nature; however, little is known about the differential regulation of plant allelopathy. Because allelopathy caused by p -hydroxybenzoic acid (pHBA) is one of the main obstacles to continuous cropping of Popu-lus × euramericana \'Neva\', we examined gene expression dynamics in Neva leaves induced by pHBA. The expression of genes related to photosynthesis and respiration changed, while mRNA involved in regulating gene expression during allelopathy was degraded. Some miRNAs that are involved in plant allelopathy target crucial genes for regulating reac-tive oxygen species. Moreover, coexpression regulatory networks were constructed based on profiles of the identified miRNA-target interactions and the differentially expressed miRNA–target pairs. These findings provide a mechanistic framework for understanding allelopathy in plants.
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