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1. Soybean root growth in relation to ionic composition in magnesium-amended acid subsoils: Implications on root citrate ameliorating aluminum constraints

Author:
HASHIMOTO, Yohey; SMYTH, T. Jot; HESTERBERG, Dean; ISRAEL, Daniel W.
Source:
Soil science and plant nutrition 2007 v.53 no.6 pp. 753-763
ISSN:
0038-0768
Subject:
Glycine max; aluminum; calcium; calcium carbonate; citrates; cultivars; hydroponics; introduced plants; magnesium; magnesium chloride; protons; root growth; roots; secretion; soil pH; soil solution; soybeans; toxicity
Abstract:
... Hydroponic studies with soybean (Glycine max [L.] Merr.) have shown that μmol L⁻¹ additions of Mg²⁺ were as effective in ameliorating Al rhizotoxicity as additions of Ca²⁺in the mmol L⁻¹ concentration range. The objectives of this study were to assess the ameliorative effects of Mg on soybean root growth in acidic subsoils and to relate the soil solution ionic compositions to soybean root growth. ...
DOI:
10.1111/j.1747-0765.2007.00191.x

2. 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

3. Mitochondrial enzymes and citrate transporter contribute to the aluminium-induced citrate secretion from soybean (Glycine max) roots

Author:
Xu, Muyun; You, Jiangfeng; Hou, Ningning; Zhang, Hongmei; Chen, Guang; Yang, Zhenming
Source:
Functional plant biology 2010 v.37 no.4 pp. 285-295
ISSN:
1445-4408
Subject:
Glycine max; soybeans; roots; aluminum; phytotoxicity; disease resistance; citrates; metabolism; transport proteins; mitochondria; malate dehydrogenase; citrate (si)-synthase; aconitate hydratase; enzyme activity; dose response; protein secretion; gene expression regulation; transcription (genetics); plant growth; acid soils
Abstract:
... The concentration of soluble aluminium (Al) in the soil solution increases at low pH and the prevalence of toxic Al³⁺ cations represent the main factor limiting plant growth on acid soils. Citrate secretion from roots is an important Al-tolerance mechanism in many species including soybean. We isolated mitochondria from the roots of an Al-resistant soybean (Glycine max L.) cv. Jiyu 70 to investiga ...
DOI:
10.1071/FP09223

4. Transient Proliferation of Proanthocyanidin-Accumulating Cells on the Epidermal Apex Contributes to Highly Aluminum-Resistant Root Elongation in Camphor Tree

Author:
Osawa, Hiroki; Endo, Izuki; Hara, Yukari; Matsushima, Yuki; Tange, Takeshi
Source:
Plant physiology 2011 v.155 no.1 pp. 433-446
ISSN:
0032-0889
Subject:
Cinnamomum camphora; Glycine max; acid soils; aluminum; anions; cell division; cell proliferation; citrates; crops; resistance mechanisms; root cap; root growth; soybeans; woody plants
Abstract:
... Aluminum (Al) is a harmful element that rapidly inhibits the elongation of plant roots in acidic soils. The release of organic anions explains Al resistance in annual crops, but the mechanisms that are responsible for superior Al resistance in some woody plants remain unclear. We examined cell properties at the surface layer of the root apex in the camphor tree (Cinnamomum camphora) to understand ...
DOI:
10.1104/pp.110.166967
PubMed:
21045123
PubMed Central:
PMC3075795

5. Salicylic acid involved in the process of aluminum induced citrate exudation in Glycine max L.

Author:
Ning Liu; Jiangfeng You; Wuliang Shi; Wen Liu; Zhenming Yang
Source:
Plant and soil 2012 v.352 no.1-2 pp. 85-97
ISSN:
0032-079X
Subject:
Glycine max; aconitate hydratase; aluminum; biosynthesis; citrates; exudation; genes; high performance liquid chromatography; paclobutrazol; plant stress; root growth; roots; salicylic acid; secretion; soybeans; transcription (genetics); transporters
Abstract:
... BACKGROUND AND AIMS: Aluminum (Al)-induced citrate exudation has been identified as an important Al-resistance mechanism in soybean. Salicylic acid (SA) is a crucial signal molecule modulating numerous environment stresses in plants. This study was to investigate the role of SA in Al-induced citrate exudation from soybean roots. METHODS: HPLC was used to test the Al-induced endogenous SA changes, ...
DOI:
10.1007/s11104-011-0981-x

6. Aluminum toxicity and tolerance mechanism in cereals and legumes — A review

Author:
Kodithuwakku Kankanange Indika Upali Arunakumara; Buddhi Charana Walpola; Min-Ho Yoon
Source:
Han'guk Ŭngyong Saengmyŏng Hwahakhoe chi = 2013 v.56 no.1 pp. 1-9
ISSN:
1738-2203
Subject:
Glycine max; aluminum; apoplast; cell division; cell walls; citrates; crops; cultivars; exudation; fatty acids; genotype; grains; ligands; malates; meristems; oxalates; oxygen; pH; permeability; peroxidation; phytotoxicity; plasma membrane; reactive oxygen species; rhizosphere; screening; silicon; solubilization; soybeans
Abstract:
... Aluminum (Al), the third most abundant element overall, after silicon and oxygen, is found virtually in all food, air, soil and water. Under acidic conditions, Al is solubilized into [Al(H₂O)₆]³⁺, which is highly toxic to many plant species. Present paper reviewed Al toxicity and tolerance mechanism in agricultural plants with special reference to cereals and legumes. Even at micromolar concentrat ...
DOI:
10.1007/s13765-012-2314-z

7. The interaction of salicylic acid and Ca2+ alleviates aluminum toxicity in soybean (Glycine max L.)

Author:
Tu Lan; Jiangfeng You; Lingnan Kong; Miao Yu; Minghui Liu; Zhenming Yang
Source:
Plant physiology and biochemistry 2016 v.98 pp. 146-154
ISSN:
0981-9428
Subject:
Glycine max; acid soils; aluminum; antagonists; ascorbate peroxidase; biosynthesis; calcium; calcium channels; calcium chloride; chelating agents; citrates; crop yield; enzyme activity; ethylene glycol tetraacetic acid; gene expression regulation; genes; peroxidase; root growth; roots; salicylic acid; secretion; signal transduction; soybeans; stress response; superoxide dismutase; toxicity
Abstract:
... Both calcium ion (Ca2+) and salicylic acid (SA) influence various stress responses in plants. In acidic soils, aluminum (Al) toxicity adversely affects crop yield. In this study, we determined the influences of Ca2+ and SA on root elongation, Al accumulation, and citrate secretion in soybean plant. We also investigated the activity of antioxidative enzymes in Al-exposed soybean roots. Root elongat ...
DOI:
10.1016/j.plaphy.2015.11.019

8. Melatonin alleviates aluminium toxicity through modulating antioxidative enzymes and enhancing organic acid anion exudation in soybean

Author:
Jiarong Zhang; Bingjie Zeng; Yawen Mao; Xiangying Kong; Xinxun Wang; Ye Yang; Jie Zhang; Jin Xu; Zed Rengel; Qi Chen
Source:
Functional plant biology 2017 v.44 no.10 pp. 961-968
ISSN:
1445-4408
Subject:
Glycine max; acid soils; aluminum; citrates; enzymes; exudation; gene expression regulation; genes; growth retardation; hydrogen peroxide; malates; melatonin; phytotoxicity; plant response; root growth; roots; seedlings; soybeans; stress tolerance
Abstract:
... Aluminium (Al) toxicity is a major chemical constraint limiting plant growth and production on acidic soils. Melatonin (N-acetyl-5-methoxytryptamine) is a ubiquitous molecule that plays crucial roles in plant growth and stress tolerance. However, there is no knowledge regarding whether melatonin is involved in plant responses to Al stress. Here, we show that optimal concentrations of melatonin cou ...
DOI:
10.1071/FP17003

9. Distribution of Manganese(II) Chemical Forms on Soybean Roots and Manganese(II) Toxicity

Author:
Yuan LIU; Zhongyi LI; Renkou XU
Source:
Pedosphere 2019 v.29 no.5 pp. 656-664
ISSN:
1002-0160
Subject:
EDTA (chelating agent); Glycine max; absorption; acid soils; aluminum; ammonium; anions; calcium; cation exchange; citrates; hydrochloric acid; lanthanum; magnesium; malates; manganese; oxalates; pH; phytotoxicity; potassium nitrate; roots; soybeans
Abstract:
... Distribution of chemical forms of manganese(II) (Mn(II)) on plant roots may affect Mn(II) absorption by plants and toxicity of Mn(II) to plants at its high level. The chemical forms of Mn(II) on soybean roots were investigated to determine the main factors that affect their distribution and relationship with Mn(II) plant toxicity. Fresh soybean roots were reacted with Mn(II) in solutions, and Mn(I ...
DOI:
10.1016/S1002-0160(17)60413-2