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1. Metabolic acclimation supports higher aluminium-induced secretion of citrate and malate in an aluminium-tolerant hybrid clone of Eucalyptus

Author:
Wannian Li; Patrick M. Finnegan; Qin Dai; Dongqiang Guo; Mei Yang
Source:
BMC plant biology 2021 v.21 no.1 pp. 14
ISSN:
1471-2229
Subject:
Eucalyptus grandis; acclimation; aconitate hydratase; aluminum; citrate (si)-synthase; citrates; cycloheximide; excretion; hybrids; hydroponics; isocitrate dehydrogenase; malates; malic enzyme; metabolism; pH; phosphoenolpyruvate carboxylase; protein synthesis inhibitors; secretion; toxicity; wood
Abstract:
... BACKGROUND: Eucalyptus is the main plantation wood species, mostly grown in aluminized acid soils. To understand the response of Eucalyptus clones to aluminum (Al) toxicity, the Al-tolerant Eucalyptus grandis × E. urophylla clone GL-9 (designated “G9”) and the Al-sensitive E. urophylla clone GL-4 (designated “W4”) were employed to investigate the production and secretion of citrate and malate by r ...
DOI:
10.1186/s12870-020-02788-4

2. Differences in physiological features associated with aluminum tolerance in Tibetan wild and cultivated barleys

Author:
Huaxin Dai; Jing Zhao; Imrul Mosaddek Ahmed; Fangbin Cao; Zhong-Hua Chen; Guoping Zhang; Chengdao Li; Feibo Wu
Source:
Plant physiology and biochemistry 2014 v.75 pp. 36-44
ISSN:
0981-9428
Subject:
acid soils; adenosinetriphosphatase; aluminum; barley; chloroplasts; citrates; cycloheximide; genes; genetic variation; genotype; germplasm; malates; protein synthesis inhibitors; protons; secretion; toxicity; ultrastructure
Abstract:
... Aluminum (Al) toxicity is a major limiting factor for plant production in acid soils. Wild barley germplasm is a treasure trove of useful genes and offers rich sources of genetic variation for crop improvement. Al-stress-hydroponic-experiments were performed, and the physiochemical characteristic of two contrasting Tibetan wild barley genotypes (Al-resistant XZ16 and Al-sensitive XZ61) and Al-resi ...
DOI:
10.1016/j.plaphy.2013.11.025

3. Aluminum-induced secretion of organic acid by cowpea (Vigna unguiculata L.) roots

Author:
Li Yu; Jun Yan; Shirong Guo; Weimin Zhu
Source:
Scientia horticulturae 2012 v.135 no. pp. 52-58
ISSN:
0304-4238
Subject:
root tips; Vigna unguiculata; secretion; malate dehydrogenase; starvation; acid tolerance; cowpeas; citrates; lanthanum; resistance mechanisms; potassium; root growth; carboxylic acids; plant stress; protein synthesis; acid soils; stress response; citrate (si)-synthase; succinate dehydrogenase (quinone); aluminum; vegetables; cycloheximide
Abstract:
... Cowpea (Vigna unguiculata L. cv. Lulutong 1) is a leguminous vegetable which is well adapted to infertile acid soil. The mechanisms of aluminum (Al) resistance in cowpea are poorly understood. This study aimed to analyze the possible Al resistance mechanisms of cowpea. After exposure to Al, both malate and citrate were secreted from cowpea roots, but the secretion of these organic acids was not sp ...
DOI:
10.1016/j.scienta.2011.12.006

4. Citrate transporters play an important role in regulating aluminum-induced citrate secretion in Glycine max

Author:
You, J. F.; Hou, N. N.; Xu, M. Y.; Zhang, H. M.; Yang, Z. M.
Source:
Biologia plantarum 2010 v.54 no.4 pp. 766-768
ISSN:
0006-3134
Subject:
Glycine max; aluminum; citrates; cultivars; cycloheximide; exudation; mitochondrial membrane; plasma membrane; protein synthesis; protein synthesis inhibitors; pyridoxal; roots; secretion; soybeans; transporters
Abstract:
... To further understand the process of Al-induced citrate secretion from soybean roots, the effect of protein synthesis inhibitor, anion channel blockers, and citrate carrier inhibitors on Al-induced citrate exudation was investigated in Al-resistant soybean cultivar PI 416937. Citrate exudation from roots increased with the increase of Al concentration from 10 to 50 μM and initiated after 4 h of Al ...
DOI:
10.1007/s10535-010-0138-4

5. Secretion of malate and citrate from roots is related to high Al-resistance in Lespedeza bicolor

Author:
Xiao Ying Dong; Ren Fang Shen; Rong Fu Chen; Zhao Liang Zhu; Jian Feng Ma
Source:
Plant and soil 2008 v.306 no.1-2 pp. 139-147
ISSN:
0032-079X
Subject:
Lespedeza cuneata; acid tolerance; aluminum; anions; carboxylic acids; citrates; cycloheximide; lanthanum; malates; resistance mechanisms; root growth; roots; secretion; shrubs; starvation; China
Abstract:
... Lespedeza bicolor (Lespedeza bicolor Turcz. cv. Jiangxi) is a leguminous shrub that is well adapted to acid infertile soils. However, the mechanisms of aluminum resistance in this species have not been established. This study aimed to assess the possible resistance mechanisms of this plant to Al. An Al-sensitive species of Lespedeza, sericea lespedeza [Lespedeza cuneata (Dum.-Cours.) G. Don cv. Zh ...
DOI:
10.1007/s11104-008-9564-x