Transcriptome profiling of genes involved in nutrient uptake regulated by phosphate-solubilizing bacteria in pepper (Capsicum annuum L.)

文献类型： 外文期刊

第一作者： Zhang, Jian

作者： Zhang, Jian;Guo, Tingting;Tao, Zhen;Wang, Pengcheng;Tian, Hongmei;Zhang, Jian;Wang, Pengcheng;Tian, Hongmei;Guo, Tingting

作者机构：

关键词： Beneficial bacteria; Nutrient level; Phosphorus absorption; RNA sequencing; Root growth

期刊名称：PLANT PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：4.27； 五年影响因子：4.816 ）

ISSN： 0981-9428

年卷期： 2020 年 156 卷

页码：

收录情况： SCI

摘要： Improving nutrient absorption in pepper has become a vital prerequisite for growth to produce a sustainable yield. In this study, transcriptome gene expression in pepper inoculated with two types of phosphate-solubilizing bacteria (PSB) and grown under low and high nutrient levels (LN and HN) was analyzed. Results showed that the root length increased when pepper was grown under LN; however, the root structure was intensively tight under HN. Our data revealed that the roots preferred horizontal growth than longitudinal growth under HN. PSB strains 'M01' and 'N3' significantly (P < 0.01) increased the P uptake by 70.44% and 98.20%, respectively, but decreased the Ca2+ content by 8.96% and 9.13%, respectively, compared with the control (L1). Although no remarkable difference was detected in the chlorophyll content, inoculation with the two PSB strains decreased the Fe3+ content in pepper under HN. The total clean sequenced data from samples ranged between 5,923,659,118 and 9,955,045,953 bp. Transcriptome profiling revealed 320 upregulated and 449 downregulated genes in L3 versus L1 and 468 upregulated and 532 downregulated genes in L4 versus L1. Gene ontology analysis revealed that the biological processes, including response to stress and secondary metabolic process, were involved. Several pathways were subordinate to glycosphingolipid biosynthesis and linoleic acid and nitrogen metabolisms. Analysis of the eukaryotic orthologous group function revealed that most differential genes were attributed to RNA processing and modification, transcription, and signal transduction. Our results provided new insights into the molecular mechanism related to nutrient uptake in pepper inoculated with PSBs.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序