山东农业科学2025，Vol.57Issue(7)：1-9,9.DOI:10.14083/j.issn.1001-4942.2025.07.001
基于转录组学解析节旋藻调控拟南芥生长的分子机制
Molecular Mechanism of Arthrospira platensis Regulating Arabidopsis Growth Based on Transcriptomics
摘要
Abstract
The regulatory role of Arthrospira platensis(AP),one of biofertilizers,in promoting plant growth remains elusive.This study focused on the model plant Arabidopsis thaliana,using a combination of physiological assessment and transcriptomic analysis to investigate the influence of different concentrations of AP on plant growth and transcriptome.The results revealed that the promotion of AP on plant growth was dos-age dependent.Compared with the control group,the fresh weight of leaves increased by 44％,the diameter of rosette leaves increased by 38％,and the number of lateral roots increased by 20％when 6 mg of AP per 100 cm2 was applied for Arabidopsis.However,the growth of the main and lateral roots was significantly inhibited by applying 24 mg of AP per 100 cm2 for Arabidopsis.The length of the main and lateral roots both decreased by 50％,but the length of the root hairs increased by 122％.Transcriptomic analysis indicated that lower con-centration of AP might enhance plant growth by modulating the expression of genes required for cell wall syn-thesis and modification.In contrast,higher concentration of AP might inhibit plant growth through influencing various plant hormone signaling pathways and absorbing inorganic salt ions from the culture medium.These re-sults could not only provide a foundational understanding of interaction between algae and plants,but also ben-efit the sustainable utilization of Arthrospira in agriculture.关键词
拟南芥/节旋藻/转录组分析/分子机制/生物肥料Key words
Arabidopsis thaliana/Arthrospira platensis/Transcriptomic analysis/Molecular mechanism/Biofertilizer分类
农业科技引用本文复制引用
赵瑞丰,赵杨,徐启玉,朱涛,马欣荣,李胜军..基于转录组学解析节旋藻调控拟南芥生长的分子机制[J].山东农业科学,2025,57(7):1-9,9.基金项目
山东省自然科学基金青年科学基金项目(ZR2022QC010) （ZR2022QC010）
中国科学院生物燃料重点实验室联合基金项目(Y21804110Z) （Y21804110Z）
