Efficiency of antioxidant system in barrel medic (

Kallala, Nadia; M’sehli, Wissal; Hammi, Khaoula Mkadmini; Abid, Ghassen; Mhadhbi, Haythem

doi:10.1071/cp21041

Cited by 4 publications

(4 citation statements)

References 45 publications

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“…Additionally, there was a decrease in the efficiency of the enzymatic or non-enzymatic defense system of plants, which can be emphasized by the reduction of carotenoids (non-enzymatic antioxidant compounds) in the condition of Fe deficiency in the absence of Si. The defense enzymatic system may also have been affected considering a possible decrease in activity antioxidant enzymes, such as ascorbate peroxidase and catalase, which are dependent on Fe because these contain the heme group in its structure ( Kallala et al., 2021 ). Moreover, Fe is required as a catalyst for electron transfer reactions by many antioxidant enzymes, such as superoxide dismutase (SOD).…”

Section: Discussionmentioning

confidence: 99%

Silicon mitigates iron deficiency in two energy cane cultivars by modulating physiological and nutritional mechanisms

Teixeira,

Prado,

Rocha

et al. 2023

Front. Plant Sci.

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IntroductionAlkaline soils with iron (Fe) deficiency are found in many regions of the world, and the use of silicon (Si) can mitigate the damages caused by such deficiency. The aim of this study was to evaluate the effect of Si in mitigating a moderate deficiency of Fe in two energy cane cultivars.MethodsTwo experiments were performed, one with the VX2 cultivar and the other with the VX3 cultivar of energy cane, which were cultivated in pots with sand and a nutrient solution. In both experiments, treatments followed a factorial scheme 2x2, designed based on the sufficiency and deficiency of Fe, being combined with the absence or presence of Si (2.5 mmol L-1), disposed in a randomized blocks design with six replicates. In the condition of Fe sufficiency, plants were cultivated in a solution containing 368 µmol L-1 of Fe, while plants cultivated under deficiency were initially submitted to cultivation with a 54 µmol L-1 concentration of Fe for 30 days, and later, with Fe complete omission for 60 days. The supply of Si was carried out by applying 15 fertirrigations with Si (via root and leaf) during the initial stage of seedling development, and after transplanting, the nutrient solution was added daily (via root).Results and discussionBoth cultivars of energy cane were sensitive to Fe deficiency in the absence of Si, impairing its growth by causing stress and pigment degradation, thus reducing the photosynthesis efficiency. The supply of Si mitigated the damages caused by Fe deficiency in both cultivars, by increasing Fe accumulation in new and intermediate leaves, stem, and roots in the VX2 cultivar, and in new, intermediate, and old leaves and stem in the VX3 cultivar, which in turn reduced stress and favored both the nutritional and photosynthesis efficiency, while increasing the dry matter production. Si by modulating physiological and nutritional mechanisms, mitigates Fe deficiency in two energy cane cultivars. It was concluded that Si can be used as a strategy to improve growth and nutrition of energy cane in environments that are susceptible to Fe deficiency.

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Section: Discussionmentioning

confidence: 99%

Silicon mitigates iron deficiency in two energy cane cultivars by modulating physiological and nutritional mechanisms

Teixeira,

Prado,

Rocha

et al. 2023

Front. Plant Sci.

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“…Legumes show genetic variability in their tolerance to Fe deficiency; their inclusion in crop rotation improves soil nutritional status, thanks to symbiosis with N-fixing bacteria [ 83 ]. For these reasons, legumes are good candidates for sustainable agriculture [ 63 , 83 ]. As most Tunisian soils are calcareous, several Tunisian researchers studied Fe deficiency responses in different legume species in order to identify tolerant lines.…”

Section: Research Hotspot: Fe Deficiency and Crops Biofortificationmentioning

confidence: 99%

“…Twenty genotypes of barrel medic ( Medicago truncatula ), a small annual legume used as forage but also as a model plant, were screened for their physiological response to Fe deficiency during growth. Fe deficiency-tolerant and -sensitive genotypes were identified; tolerance was correlated with greater acidification capacity, modified root architecture, and an induction of Superoxide Dismutase (SOD) activities [ 63 , 64 ]. Similar approaches were applied to investigate genotypic differences in the response to Fe deficiency in pea [ 51 , 52 ] and in common bean [ 37 ].…”

Section: Research Hotspot: Fe Deficiency and Crops Biofortificationmentioning

confidence: 99%

“…Publications with African Prominent Authorship pea (Pisum sativum) [51,52] [ 51,52] tomato (Solanum lycopersicum) [53][54][55] [ [53][54][55] sorghum (Sorghum bicolor) [56][57][58] [ 57,58] lentil (Lens culinaris) [59,60] wheat (various species) [61,62] [ 61,62] barrel medic (Medicago truncatula) [63,64] [ 63,64] cowpea (Vigna unguiculata) [33,65] [ 33,65] broad bean (Vicia faba) [66,67] [ 66,67] barley (Hordeum vulgare) [68] [68] flax (Linum usitatissimum) [69] date palm (Phoenix dactylifera) [70] grey mangrove (Avicennia marina) [71] African wormwood (Artemisia afra) [ To further restrict our analysis to research prominently conducted in Africa, only 48 publications were retained for further analysis, i.e., those with first and/or corresponding authors affiliated with an African country (Table 1, plant species and references in bold). Hence, 22 papers were excluded, as they either did not report an African affiliation as a prominent authorship [15,19,20,27,…”

Section: Plant Species Publicationsmentioning

confidence: 99%

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Plant Iron Research in African Countries: Current “Hot Spots”, Approaches, and Potentialities

Murgia,

Morandini

2023

Plants

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Plant iron (Fe) nutrition and metabolism is a fascinating and challenging research topic; understanding the role of Fe in the life cycle of plants requires knowledge of Fe chemistry and biochemistry and their impact during development. Plant Fe nutritional status is dependent on several factors, including the surrounding biotic and abiotic environments, and influences crop yield and the nutritional quality of edible parts. The relevance of plant Fe research will further increase globally, particularly for Africa, which is expected to reach 2.5 billion people by 2050. The aim of this review is to provide an updated picture of plant Fe research conducted in African countries to favor its dissemination within the scientific community. Three main research hotspots have emerged, and all of them are related to the production of plants of superior quality, i.e., development of Fe-dense crops, development of varieties resilient to Fe toxicity, and alleviation of Fe deficiency, by means of Fe nanoparticles for sustainable agriculture. An intensification of research collaborations between the African research groups and plant Fe groups worldwide would be beneficial for the progression of the identified research topics.

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Effect of Silicon in Mitigating Iron Deficiency

Lata-Tenesaca

Ortiz

2023

Benefits of Silicon in the Nutrition of Plants

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Efficiency of antioxidant system in barrel medic (

Cited by 4 publications

References 45 publications

Silicon mitigates iron deficiency in two energy cane cultivars by modulating physiological and nutritional mechanisms

Silicon mitigates iron deficiency in two energy cane cultivars by modulating physiological and nutritional mechanisms

Plant Iron Research in African Countries: Current “Hot Spots”, Approaches, and Potentialities

Effect of Silicon in Mitigating Iron Deficiency

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