Plant Response to Sulfur in Tropical Soils

Fox, R. L.; Blair, Graeme J.

doi:10.2134/agronmonogr27.c15

Cited by 5 publications

(2 citation statements)

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“…Effective preventive efforts developed in some countries are aimed at fortification of soils, mainly with ammonium sulfate or calcium sulfate (gypsum) salts, resulting in meaningful improvements in crop yield, SAAs content, and biological value. 5,6,275,276 In contrast to the tremendously high amounts of data accumulated over decades by pedologists and agronomists on SO4 2requirements and metabolism, the available knowledge on elemental S in human nutrition appears to be a black hole. Nevertheless, because elemental S is the obligatory precursor substrate for the oxidative production of SO4 2salts, decremental dispersion patterns paralleling those of SO4 2oxyanions are expected to occur, with the highest values recorded in the vicinity of volcanoes and the lowest values found in remote and washed-out areas.…”

Section: Essentiality Of Elemental Sulfurmentioning

confidence: 99%

“…Intensive agricultural production, lack of animal manure, and use of fertilizers providing N, K, and P substrates but devoid of SO 4 2− salts may further aggravate the imbalance within soils. Effective preventive efforts developed in some countries are aimed at fortification of soils, mainly with ammonium sulfate or calcium sulfate (gypsum) salts, resulting in meaningful improvements in crop yield, SAAs content, and biological value …”

Section: Essentiality Of Elemental Sulfurmentioning

confidence: 99%

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Nutritional essentiality of sulfur in health and disease

Ingenbleek¹,

Kimura

2013

Nutr Rev

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Sulfur is the seventh most abundant element measurable in the human body and is supplied mainly by the intake of methionine (Met), an indispensable amino acid found in plant and animal proteins. Met controls the initiation of protein synthesis, governs major metabolic and catalytic activities, and may undergo reversible redox processes safeguarding protein integrity. Withdrawal of Met from customary diets causes the greatest downsizing of lean body mass following either unachieved replenishment (malnutrition) or excessive losses (inflammation). These physiopathologically unrelated morbidities nevertheless stimulate comparable remethylation reactions from homocysteine, indicating that Met homeostasis benefits from high metabolic priority. Inhibition of cystathionine-β-synthase activity causes the upstream sequestration of homocysteine and the downstream drop in cysteine and glutathione. Consequently, the enzymatic production of hydrogen sulfide and the nonenzymatic reduction of elemental sulfur to hydrogen sulfide are impaired. Sulfur operates as cofactor of several enzymes critically involved in the regulation of oxidative processes. A combination of malnutrition and nutritional deprivation of sulfur maximizes the risk of cardiovascular disorders and stroke, constituting a novel clinical entity that threatens plant-eating population groups.

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Section: Essentiality Of Elemental Sulfurmentioning

confidence: 99%

Section: Essentiality Of Elemental Sulfurmentioning

confidence: 99%