Agronomic traits and ionomics influence on Cd accumulation in various sorghum (Sorghum bicolor (L.) Moench) genotypes

Wang, Shuai; Huang, Daoyou; Zhu, Qihong; Li, Bai-zhong; Xu, Chao; Zhu, Huiling; Zhang, Quan

doi:10.1016/j.ecoenv.2021.112019

Cited by 14 publications

(9 citation statements)

References 29 publications

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“…This finding supports previous research into this area which links changing amino acid content and inducing a high level of heavy metals tolerance [ 1 , 10 ]. It is a widely held view that such amino acids, especially proline, glycine, and alanine, are involved in stabilizing macromolecules structures, scavenging free radicals, adjusting heavy metal toxicity by binding metal ions inside cells of several plant tissues, and altering the solubility, adsorption and desorption, fractions, and migration of metals through dissolution, chelation, and oxidation/reduction [ 11 , 12 , 13 ].…”

Section: Discussionmentioning

confidence: 99%

Understanding the Active Mechanisms of Plant (Sesuvium portulacastrum L.) against Heavy Metal Toxicity

Alsherif

Khanghahi

Crecchio

et al. 2023

Plants

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Through metabolic analysis, the present research seeks to reveal the defense mechanisms activated by a heavy metals-resistant plant, Sesuvium portulacastrum L. In this regard, shifting metabolisms in this plant were investigated in different heavy metals-contaminated experimental sites, which were 50, 100, 500, 1000, and 5000 m away from a man-fabricated sewage dumping lake, with a wide range of pollutant concentrations. Heavy metals contaminations in contaminated soil and their impact on mineral composition and microbial population were also investigated. The significant findings to emerge from this research were the modifications of nitrogen and carbon metabolisms in plant tissues to cope with heavy metal toxicity. Increased plant amylase enzymes activity in contaminated soils increased starch degradation to soluble sugars as a mechanism to mitigate stress impact. Furthermore, increased activity of sucrose phosphate synthase in contaminated plants led to more accumulation of sucrose. Moreover, no change in the content of sucrose hydrolyzing enzymes (vacuolar invertase and cytosolic invertase) in the contaminated sites can suggest the translocation of sucrose from shoot to root under stress. Similarly, although this study demonstrated a high level of malate in plants exposed to stress, caution must be applied in suggesting a strong link between organic acids and the activation of defense mechanisms in plants, since other key organic acids were not affected by stress. Therefore, activation of other defense mechanisms, especially antioxidant defense molecules including alpha and beta tocopherols, showed a greater role in protecting plants from heavy metals stress. Moreover, the increment in the content of some amino acids (e.g., glycine, alanine, glutamate, arginine, and ornithine) in plants under metal toxicity can be attributed to a high level of stress tolerance. Moreover, strategies in the excitation of the synthesis of the unsaturated fatty acids (oleic and palmitoleic) were involved in enhancing stress tolerance, which was unexpectedly associated with an increase in the accumulation of palmitic and stearic (saturated fatty acids). Taken together, it can be concluded that these multiple mechanisms were involved in the response to stress which may be cooperative and complementary with each other in inducing resistance to the plants.

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Section: Discussionmentioning

confidence: 99%

Understanding the Active Mechanisms of Plant (Sesuvium portulacastrum L.) against Heavy Metal Toxicity

Alsherif

Khanghahi

Crecchio

et al. 2023

Plants

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“…Sorghum ( Sorghum bicolor ), an important host plant of M. sacchari , has great potential in phytoremediation of Cd-polluted soils and can absorb and accumulate 10 times the Cd concentration from soil and poison consumers higher in the food chain . The Cd concentration in sorghum shoots could be as high as 7.88 mg/kg . In addition, our previous study has shown that Cd easily undergoes bioaccumulation along the food chain.…”

Section: Methodsmentioning

confidence: 99%

“… 33 The Cd concentration in sorghum shoots could be as high as 7.88 mg/kg. 34 In addition, our previous study has shown that Cd easily undergoes bioaccumulation along the food chain. The fire ant workers exposed to a Cd-contaminated sucrose solution (100 mg Cd kg –1 ) accumulated more than 60 mg/kg Cd and at the same time showed a significant decrease in survival rate.…”

Section: Methodsmentioning

confidence: 99%

Sublethal Exposure to Cadmium Induces Chemosensory Dysfunction in Fire Ants

Yang

Zhang

Liu

et al. 2022

Environ. Sci. Technol.

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Ants easily accumulate cadmium (Cd) from the food web in terrestrial ecosystems. Cd contamination may cause olfactory dysfunction and consequently disorders in the social behavior of ants. To explore the molecular mechanism underlying the effect of Cd exposure on the chemosensory process of ants, we characterized the Cd-induced variations in the expression of genes involved in chemoreception and electrophysiological and behavioral sensitivity to semiochemicals by using the red imported fire ant, Solenopsis invicta, as a model system. As a result, Cd exposure increased Cd accumulation and decreased the survival rate of S. invicta. Cd exposure altered the expression profiles of odor binding protein genes of S. invicta (SiOBPs). Specifically, SiOBP15 protein expression was upregulated upon Cd exposure. Both SiOBP7 and SiOBP15 exhibited high binding affinities to limonene, nonanal, and 2,4,6-trimethylpyridine. S. invicta exposed to Cd showed less sensitive electrophysiological and behavioral response to the three chemicals but exhibited sensitive perception to undecane. Silencing of SiOBP7 and SiOBP15 abolished the behavioral response of S. invicta to nonanal and undecane, respectively, suggesting that SiOBP7 and SiOBP15 play essential roles in the chemoreception of S. invicta. In general, our results suggest that Cd contamination may interfere with olfactory signal transduction by altering the expression of SiOBPs, consequently evoking chemosensory dysfunction in fire ants.

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“…O sorgo (Sorghum bicolor (L.) Moench) é uma monocotiledônea com metabolismo fotossintética C4 (Wang et al, 2021), pertencente à família Poaceae, subfamília Panicoideae, tribo Paniceae (Jardim et al, 2020a) origem desta gramínea ainda é incerta, porém relata-se que a originalidade do sorgo foi na África. Esta gramínea também possui caracteres de plantas xerófilas e persiste em ambientes áridos e semiáridos, onde há uma grande limitação ambiental (Lima et al, 2018a;Kirchner et al, 2019;Jardim et al, 2020b).…”

Section: Sorgo Forrageirounclassified

Indicadores de eficiência biológica, habilidade competitiva e benefício econômico de sistemas de produção sustentável de forragem: Uma revisão

Salvador

Silva²,

Santos³

et al. 2022

Rev. Bras. Geog. Fis.

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The cultivation of adapted species (e.g., forage cactus, sorghum, millet, etc.) can provide greater forage productivity in arid and semi-arid environments. However, due to water limitations in the region, it is important to use irrigation, when well managed, it allows for greater production and provides opportunities for the insertion of intercropping crops even in dry periods. Thus, this review aimed to survey the main indices of biological efficiency, competitive ability and economic benefit in different forage species and crops, as well as the use of resilient practices that seek to increase the efficiency and sustainability of forage production in an environment semi-arid. Scientific articles in Portuguese and English from the last ten years were used, using the following platforms: Google Academic, Scielo, ScienceDirect, Scopus, and Web of Science, paying attention to the quality and timeliness of the literature cited. The use of resilient agricultural practices such as irrigation, planting of adapted species, straw mulch and intercropping are of great importance for productive units in the Brazilian semi-arid region. As well as the use of indices of biological efficiency, competitive ability and economic return, which are capable of helping to determine the best configurations of intercropping crops, providing greater reliability and profitability of the agricultural chain in semi-arid regions.

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Agronomic traits and ionomics influence on Cd accumulation in various sorghum (Sorghum bicolor (L.) Moench) genotypes

Cited by 14 publications

References 29 publications

Understanding the Active Mechanisms of Plant (Sesuvium portulacastrum L.) against Heavy Metal Toxicity

Understanding the Active Mechanisms of Plant (Sesuvium portulacastrum L.) against Heavy Metal Toxicity

Sublethal Exposure to Cadmium Induces Chemosensory Dysfunction in Fire Ants

Indicadores de eficiência biológica, habilidade competitiva e benefício econômico de sistemas de produção sustentável de forragem: Uma revisão

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