Interactive effects of pH and aluminum on the secretion of organic acid anions by roots and related metabolic factors in Citrus sinensis roots and leaves

Environmental Pollution
Tao-Yu YangLi-Song Chen

Abstract

Low pH and aluminum (Al)-toxicity often coexist in acidic soils. Citrus sinensis seedlings were treated with nutrient solution at a pH of 2.5, 3.0, 3.5 or 4.0 and an Al concentration of 0 or 1 mM for 18 weeks. Thereafter, malate, citrate, isocitrate, acid-metabolizing enzymes, and nonstructural carbohydrates in roots and leaves, and release of malate and citrate from roots were measured. Al concentration in roots and leaves increased under Al-toxicity, but it declined with elevating nutrient solution pH. Al-toxicity increased the levels of glucose, fructose, sucrose and total soluble sugars in leaves and roots at each given pH except for a similar sucrose level at pH 2.5-3.0, but it reduced or did not alter the levels of starch and total nonstructural carbohydrates (TNC) in leaves and roots with the exception that Al improved TNC level in roots at pH 4.0. Levels of nonstructural carbohydrates in roots and leaves rose with reducing pH with a few exceptions with or without Al-toxicity. A potential model for the possible role of root organic acid (OA) metabolism (anions) in C. sinensis Al-tolerance was proposed. With Al-toxicity, the elevated pH upregulated the OA metabolism, and increased the flow of carbon to OA metabolism, and ...Continue Reading

References

Feb 13, 2001·Plant Science : an International Journal of Experimental Plant Biology·J López-BucioL Herrera-Estrella
May 5, 2001·Annual Review of Plant Physiology and Plant Molecular Biology·PR RyanDL Jones
May 30, 2001·Trends in Plant Science·J F MaE Delhaize
Mar 23, 2004·Physiologia Plantarum·Ayalew LigabaHideaki Matsumoto
Sep 21, 2004·Annual Review of Plant Biology·Leon V KochianMiguel A Pineros
Jan 22, 2005·Journal of Plant Physiology·José Luis Martínez-CamachoVictor Calderón-Salinas
Feb 13, 2010·Science·J H GuoF S Zhang
Feb 15, 2011·Journal of Plant Physiology·Zheng-He LinBrandon R Smith
Mar 23, 2011·Plant Science : an International Journal of Experimental Plant Biology·Lin-Tong YangLi-Song Chen
Mar 20, 2013·BioMed Research International·Lin-Tong YangLi-Song Chen
Jan 27, 2015·Annual Review of Plant Biology·Leon V KochianJurandir V Magalhaes
Nov 29, 2016·Journal of Genetics and Genomics = Yi Chuan Xue Bao·Zhi Chang Chen, Hong Liao
Mar 31, 2019·International Journal of Molecular Sciences·Xiang ZhangJixing Xia

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Citations

Jul 19, 2020·Journal of Agricultural and Food Chemistry·Zhouping FuTao Xia
Jun 22, 2021·Frontiers in Plant Science·Shumei FangXilong Liang

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