生态学杂志2024，Vol.43Issue(5)：1291-1299,9.DOI:10.13292/j.1000-4890.202405.039
土壤pH对琯溪蜜柚叶片枝条和果实的影响
Effects of soil pH on leaf branch and fruit of Citrus grandis(L.)Osbeck.cv.Guanximiyou
摘要
Abstract
Exploring the effects of soil pH on the branches,leaves,and juice sac granulation in fruits of Citrus grandis(L.)Osbeck.cv.Guanximiyou provides theoretical support for its scientific cultivation and sustainable de-velopment.We carried out an experiment in four Guanximiyou orchards that showcased a uniformity in geographical conditions and tree growth but differed in soil pH(soil pH values were 5.15,4.76,4.73 and 4.49,respectively).Illumina HiSeq 4000 high-throughput transcriptome sequencing analysis was performed on the leaves and branches of Guanximiyou,with the aim of isolating differential genes for KEGG enrichment metabolic pathway analysis and identifying associated indicators.The findings showed that a lower soil pH(4.76,4.73 and 4.49)exacerbated the granularity of Guanximiyou and affected the MAPK signal transduction and plant hormone signal transduction path-ways in leaves and branches.Furthermore,soil pH significantly influenced secondary and lactic acid metabolic pathways in branches.Concurrently,a PCR fluorescent quantitative analysis of pertinent genes in signal transduc-tion pathways,such as MAP Kinase Kinase Kinase 18,Protein Phosphatase 2C,Abscisic Acid Insensitive Protein 5,CML46 Calcium Binding Protein,Auxin Response Protein IAA1,and Endo-Chitinase,was conducted to vali-date the reliability of the transcriptome data.Soil pH was found to influence the quantities of abscisic acid in leaves and fruits,and the amount of auxin in branches.We conclude that lower soil pH exacerbates the granularity of Guanximiyou,influences the quantities of hormones in fruits,leaves and branches and the expression of genes in-volved in plant hormone signaling transduction pathways.关键词
琯溪蜜柚/土壤pH/转录组测序/信号转导途径/植物激素Key words
Citrus grandis(L.)Osbeck.cv.Guanximiyou/soil pH/transcriptome sequencing/signal transduction pathway/plant hormone引用本文复制引用
张琼,陆銮眉,胡元庆,朱丽霞,李媛媛,郑思淼..土壤pH对琯溪蜜柚叶片枝条和果实的影响[J].生态学杂志,2024,43(5):1291-1299,9.基金项目
福建省科技厅自然科学基金面上项目(2020J01810)资助. （2020J01810）
