The role of silicon in metabolic acclimation of rice plants challenged with arsenic

Sanglard, Lilian Vincis Pereira; Detmann, Kelly C.; Martins, Samuel C. V.; Teixeira, Rodrigo Alves; Pereira, Lucas Felisberto; Sanglard, Matheus L.; Fernie, Alisdair R.; Araújo, Wagner L.; DaMatta, Fábio M.

doi:10.1016/j.envexpbot.2015.11.004

Cited by 80 publications

(23 citation statements)

References 58 publications

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“…A significant negative correlation was observed between Si concentration and uptake of inorganic arsenic species, and also for arsenic concentration in rice seedlings [136,158] because Si supply subdues the expression of the Si transporters Lsi1 and Lsi 2, the other mediators of arsenite uptake [2,42,143]. The application of Si in soil decreased the total arsenic accumulation in rice straw and grain by 78 and 16%, respectively [32,43]; strongly decreases the arsenic concentration in leaves and restricts the negative impacts on the photosynthetic apparatus [159]. In a study made by Marmiroli et al [155], it was observed that the growth of shoot was adversely affected by the As III and As V exposure in the absence of Si supplementation.…”

Section: Role Of Silicamentioning

confidence: 99%

Arsenic Accumulation in Rice and Probable Mitigation Approaches: A Review

Mitra¹,

et al. 2017

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According to recent reports, millions of people across the globe are suffering from arsenic (As) toxicity. Arsenic is present in different oxidative states in the environment and enters in the food chain through soil and water. In the agricultural field, irrigation with arsenic contaminated water, that is, having a higher level of arsenic contamination on the top soil, which may affects the quality of crop production. The major crop like rice (Oryza sativa L.) requires a considerable amount of water to complete its lifecycle. Rice plants potentially accumulate arsenic, particularly inorganic arsenic (iAs) from the field, in different body parts including grains. Different transporters have been reported in assisting the accumulation of arsenic in plant cells; for example, arsenate (As V ) is absorbed with the help of phosphate transporters, and arsenite (As III ) through nodulin 26-like intrinsic protein (NIP) by the silicon transport pathway and plasma membrane intrinsic protein aquaporins. Researchers and practitioners are trying their level best to mitigate the problem of As contamination in rice. However, the solution strategies vary considerably with various factors, such as cultural practices, soil, water, and environmental/economic conditions, etc. The contemporary work on rice to explain arsenic uptake, transport, and metabolism processes at rhizosphere, may help to formulate better plans. Common agronomical practices like rain water harvesting for crop irrigation, use of natural components that help in arsenic methylation, and biotechnological approaches may explore how to reduce arsenic uptake by food crops. This review will encompass the research advances and practical agronomic strategies on arsenic contamination in rice crop.

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Section: Role Of Silicamentioning

confidence: 99%

Arsenic Accumulation in Rice and Probable Mitigation Approaches: A Review

Mitra¹,

et al. 2017

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“…Saccharides are, besides what has already been said, involved in pathways producing NADPH, which is necessary for the activity of monodehydroascorbate reductase and glutathione reductase [34], enzymes active in oxidative stress defense. Unfortunately, the As effect on carbohydrate status needs further clarification, as not many of the studies devoted to the As influence on saccharide metabolism used various plant species, a diverse experimental design, or material of different plant ages; moreover, these studies led to contradictory results (decreased/increased or even fluctuating saccharide levels, e.g., in rice [35], bean [36], wheat [37], potato [18], or tomato [16]. Importantly, As-tolerant fern Pityrogramma calomelanos exhibited relative stable carbohydrate levels upon arsenic stress [38].…”

Section: Introductionmentioning

confidence: 99%

Multi-Component Antioxidative System and Robust Carbohydrate Status, the Essence of Plant Arsenic Tolerance

et al. 2020

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Arsenic (As) contaminates the food chain and decreases agricultural production through impairing plants, particularly due to oxidative stress. To better understand the As tolerance mechanisms, two contrasting tobacco genotypes: As-sensitive Nicotiana sylvestris and As-tolerant N.tabacum, cv. ‘Wisconsin’ were analyzed. The most meaningful differences were found in the carbohydrate status, neglected so far in the As context. In the tolerant genotype, contrary to the sensitive one, net photosynthesis rates and saccharide levels were unaffected by As exposure. Importantly, the total antioxidant capacity was far stronger in the As-tolerant genotype, based on higher antioxidants levels (e.g., phenolics, ascorbate, glutathione) and activities and/or appropriate localizations of antioxidative enzymes, manifested as reverse root/shoot activities in the selected genotypes. Accordingly, malondialdehyde levels, a lipid peroxidation marker, increased only in sensitive tobacco, indicating efficient membrane protection in As-tolerant species. We bring new evidence of the orchestrated action of a broad spectrum of both antioxidant enzymes and molecules essential for As stress coping. For the first time, we propose robust carbohydrate metabolism based on undisturbed photosynthesis to be crucial not only for subsidizing C and energy for defense but also for participating in direct reactive oxygen species (ROS) quenching. The collected data and suggestions can serve as a basis for the selection of plant As phytoremediators or for targeted breeding of tolerant crops.

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“…It has been widely reported that Si is able to suppress both physical stresses, such as drought, high temperature, UV, loading, and freezing, and chemical stress, including salinity, nutrient imbalance, and metal toxicity (Ma, 2004;Ma & Yamaji 2015). Silica has not been recognized as an essential element, although numerous studies have demonstrated that Si is beneficial for plant growth and development, especially under a wide range of abiotic stress conditions (Sanglard 2016;Shi et al 2013;Yin et al 2014). Si deposition occurs mainly as phytoliths (SiO 2 _nH 2 O) (Ye et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Empty Fruit Bunches as Potential Source for Biosilica Fertilizer for Oil Palm

Santi¹,

Kalbuadi²,

Goenadi³

2019

J.Tropical Biodiversity Biotechnology

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In Indonesia, the development of oil palm plantations has been going on a pervasive way; they covered about 14.03 million hectares in 2017. This massive coverage of land might then generate a tremendous amount of biomass per year, both in the form of both solid and liquid wastes. The processing of fresh fruit bunches (FFB) in palm oil mill (POM) produces wastes that primarily in the form of empty fruit bunches (EFB), which is amounting of up to 25% (w/w) of FFB. It has been being indicated that EFB contains a considerable amount of silica (Si) which attracts the Indonesian Research Institute for Biotechnology and Bioindustry (IRIBB) to investigate the potential use of EFB as a source of bio-available Si, in the form of H4SiO4 (mono silicic acid, BioSilAc). The experiment was carried out at Sungai Mirah Minting Estate, PT Bumitama Gunajaya Agro-Central Kalimantan. The EFB material was obtained from POM and chopped into 2.5-5.0 cm in size. A four-week bio-decomposition process was employed by using bio-decomposers containing Trichoderma pseudokoningii, T. polysporum, and Phanerochaete chrysosporium. Chemical analyses of composted EFB were conducted before and 28-days after decomposer application. The presence of Si in the compost was observed by scanning electron microscopy (SEM). The effect of Si-containing EFB compost on the immature and mature oil palm was evaluated. Seven treatments, i.e. combination of EFB compost and BioSilAc application with reduced-dosages of NPK fertilisers were arranged in a random block design with three replicates. The results show that large quantities of silica bodies attached to the surface of EFB fibres and amounting to 0.44% soluble Si. The FFB data indicated that the application of 75% NPK + 500 kg composted EFB + 2 L BioSilAc/ha/year on a five-year-old plant resulted in higher yield than that obtained from 100% standard dosage of NPK. The study also revealed that the application of EFB compost reduced 50% of BioSilAc dosage.

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The role of silicon in metabolic acclimation of rice plants challenged with arsenic

Cited by 80 publications

References 58 publications

Arsenic Accumulation in Rice and Probable Mitigation Approaches: A Review

Arsenic Accumulation in Rice and Probable Mitigation Approaches: A Review

Multi-Component Antioxidative System and Robust Carbohydrate Status, the Essence of Plant Arsenic Tolerance

Empty Fruit Bunches as Potential Source for Biosilica Fertilizer for Oil Palm

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