Toxicity of aluminium on various levels of plant cells and organism: A review

Singh, Shikha; Tripathi, Durgesh Kumar; Singh, Vijay Pratap; Sharma, Shivesh; Dubey, Nawal Kishore; Chauhan, Devendra Kumar; Vaculík, Marek

doi:10.1016/j.envexpbot.2017.01.005

Cited by 361 publications

(183 citation statements)

References 189 publications

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“…The most important internal tolerance mechanisms are Al-binding proteins, the chelation of Al using organic acids (such as citric acid) and other organic ligands in the cytosol, the compartmentalization or sequestration of Al in the vacuoles, the evolution of Al-tolerant enzymes (such as Nicotinamide adenine dinucleotide phosphate-specific isocitrate dehydrogenase), elevated enzyme activity [37,86,87], and the Al-induced synthesis of callose (such as 1, 3-glucan) [78,88]. The phospholipid composition of the plasma membrane plays an important role in Al toxicity since it creates a negative charge on the surface of the membrane and increases the sensitivity to Al [79,89].…”

Section: Mechanisms Of Tolerance To Low Soil Phmentioning

confidence: 99%

Breeding Maize for Tolerance to Acidic Soils: A Review

et al. 2018

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Acidic soils hamper maize (Zea mays L.) production, causing yield losses of up to 69%. Low pH acidic soils can lead to aluminum (Al), manganese (Mn), or iron (Fe) toxicities. Genetic variability for tolerance to low soil pH exists among maize genotypes, which can be exploited in developing high-yielding acid-tolerant maize genotypes. In this paper, we review some of the most recent applications of conventional and molecular breeding approaches for improving maize yield under acidic soils. The gaps in breeding maize for tolerance to low soil pH are highlighted and an emphasis is placed on promoting the adoption of the numerous existing acid soil-tolerant genotypes. While progress has been made in breeding for tolerance to Al toxicity, little has been done on Mn and Fe toxicities. More research inputs are therefore required in: (1) developing screening methods for tolerance to manganese and iron toxicities; (2) elucidating the mechanisms of maize tolerance to Mn and Fe toxicities; and, (3) identifying the quantitative trait loci (QTL) responsible for Mn and Fe tolerance in maize cultivars. There is also a need to raise farmers' and other stakeholders' awareness of the problem of Al, Mn, and Fe soil toxicities to improve the adoption rate of the available acid-tolerant maize genotypes. Maize breeders should work more closely with farmers at the early stages of the release process of a new variety to facilitate its adoption level. Researchers are encouraged to strengthen their collaboration and exchange low soil pH-tolerant maize germplasm.

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Section: Mechanisms Of Tolerance To Low Soil Phmentioning

confidence: 99%

Breeding Maize for Tolerance to Acidic Soils: A Review

et al. 2018

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“…Abiotic stresses include heat, cold, freezing, drought, salinity, flooding agents, UV, and heavy-metal stresses that have significant impacts on a plant life cycle (Macedo, 2012;Mantri et al, 2012;Singh et al, 2015Singh et al, , 2017Tripathi et al, 2016c). These stresses not only affect plant biodiversity and productivity but also can interfere with the food web and the ecosystem.…”

Section: Introductionmentioning

confidence: 99%

Acquisition and Homeostasis of Iron in Higher Plants and Their Probable Role in Abiotic Stress Tolerance

Tripathi

Singh

Gaur

et al. 2018

Front. Environ. Sci.

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146

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Iron (Fe) is a micronutrient that plays an important role in agriculture worldwide because plants require a small amount of iron for its growth and development. All major functions in a plant's life from chlorophyll biosynthesis to energy transfer are performed by Fe (Brumbarova et al., 2008;Gill and Tuteja, 2011). Iron also acts as a major constituent of many plant proteins and enzymes. The acquisition of Fe in plants occurs through two strategies, i.e., strategy I and strategy II (Marschner and Römheld, 1994). Under various stress conditions, Nramp and the YSL gene families help in translocation of Fe, which further acts as a mineral regulatory element and defends plants against stresses. Iron plays an irreplaceable role in alleviating stress imposed by salinity, drought, and heavy metal stress. This is because it activates plant enzymatic antioxidants like catalase (CAT), peroxidase, and an isoform of superoxide dismutase (SOD) that act as a scavenger of reactive oxygen species (ROS) (Hellin et al., 1995). In addition to this, their deficiency as well as their excess amount can disturb the homeostasis of a plant's cell and result in declining of photosynthetic rate, respiration, and increased accumulation of Na + and Ca − ions which culminate in an excessive formation of ROS. The short-range order hydrated Fe oxides and organic functional groups show affinities for metal ions. Iron plaque biofilm matrices could sequester a large amount of metals at the soil-root interface. Hence, it has attracted the attention of plant physiologists and agricultural scientists who are discovering more exciting and hidden applications of Fe and its potential in the development of bio-factories. This review looks into the recent progress made in putting forward the role of Fe in plant growth, development, and acclimation under major abiotic stresses, i.e., salinity, drought, and heavy metals.

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“…Afeta processos de divisão celular e consequentemente o crescimento das raízes e a absorção de nutrientes. Tais danos ao sistema radicular resultam na exploração de menor volume de solo pelas plantas, prejudicando a absorção de nutrientes comprometendo o crescimento da parte aérea (FREITAS et al, 2006;BEUTLER et al 2001;SINGH. et al, 2017).…”

Section: Introductionunclassified

TOXIDEZ DO AL EM PLÂNTULAS DE ANGICO VERMELHO (Anadenathera macrocarpa (Benth) Brenan) e PATA-DE-VACA (Bauhinia variegata L.)

2017

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tolerante do que a B. variegata, nas condições testadas. Os efeitos da toxidez de Al foram notados pela ERR% em todas as soluções testadas. Os dados sugeriram que em estudo de toxidez de Al deveria ser usada a solução nutritiva completa e balanceada para A. macrocarpa e B. variegata. Palavras ABSTRACTThe daily forest species acquires more importance in society, not only because it is a several industry proposal, but also for its role in the greenhouse effect and urban thermal comfort. Comparing these species with the highest economic value, information on the effect of aluminuim (Al) in these plants is scarce. The parameters, root length, root growth rate (TCR) and relative root elongation (ERR%), normally used in aluminum toxicity studies in annual crops, were used to verify aluminum toxicity in the Angico Vermelho (Anadenanthera macrocarpa (Benth.) Brenan) and Pata-de-Vaca (Bauhinia variegata L.). The experiments were carried out in simple solutions containing only calcium (0.1 mM) and in a complete solution, of low ionic strength and balanced, with the seeds germinated in sand and later the seedlings transferred to the solutions for 8 to 18 days with concentration of aluminum from 50 to 800. The results indicated that the parameters tested could be used to study aluminum toxicity in these

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Toxicity of aluminium on various levels of plant cells and organism: A review

Cited by 361 publications

References 189 publications

Breeding Maize for Tolerance to Acidic Soils: A Review

Breeding Maize for Tolerance to Acidic Soils: A Review

Acquisition and Homeostasis of Iron in Higher Plants and Their Probable Role in Abiotic Stress Tolerance

TOXIDEZ DO AL EM PLÂNTULAS DE ANGICO VERMELHO (Anadenathera macrocarpa (Benth) Brenan) e PATA-DE-VACA (Bauhinia variegata L.)

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