Acid soil damage in sorghum genotypes: Role of magnesium deficiency and root impairment

The management of P nutrition can be a good solution for aluminum toxicity and P nutrient deficiency in acid soil. This study aimed to determine the role of phosphorus in improving the tolerance of sorghum to Al stress in nutrient culture. This research was conducted at green house of IPB Bogor, tissue culture laboratory in the Department of AGH IPB and Balai Besar Pasca Panen Cimanggu Bogor, from January to November 2014. A completely randomized factorial design was used in three experiments. The results revealed that addition of P improved the tolerance of two sorghum genotypes to Al stress as indicated by the reduction in root length inhibition by Al, where P was more effective in tolerant genotype Numbu. Addition of P reduced the accumulation of Al in the root tissues as shown by the lighter intensity of hematoxylin staining, especially in Numbu. Aluminum stress increased the secretion of oxalate acid in both sorghum genotypes, where P lowered oxalate acid secretion in both genotypes. These facts showed that the role of P in improving the tolerance of sorghum to Al stress might be associated with the inhibition of Al absorption into the root tissues, although the mechanism is not yet known.Keywords: Al stress, organic acid secretion, role of P, root staining method, sorghum

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Dementias: the role of magnesium deficiency and an hypothesis concerning the pathogenesis of Alzheimer's disease

Medical Hypotheses ◽

10.1016/0306-9877(90)90095-v ◽

1990 ◽

Vol 31 (3) ◽

pp. 211-225 ◽

Cited By ~ 36

Author(s):

J.Leslie Glick

Keyword(s):

Alzheimer’S Disease ◽

Alzheimer's Disease ◽

Magnesium Deficiency

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Mineral element concentrations of sorghum genotypes grown on tropical acid soil

Communications in Soil Science and Plant Analysis ◽

10.1080/00103628809367991 ◽

1988 ◽

Vol 19 (7-12) ◽

pp. 1019-1029 ◽

Cited By ~ 14

Author(s):

R. B. Clark ◽

L. M. Gourley

Keyword(s):

Acid Soil ◽

Mineral Element ◽

Element Concentrations ◽

Sorghum Genotypes

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THE ROLE OF MAGNESIUM DEFICIENCY IN THE PATHOGENESIS OF THE FORMATION OF ARTERIAL HYPERTENSION IN WORKERS OF LOCOMOTIVE CREWS. CORRECTION METHODS

10.31089/978-5-6042929-2-1-2021-1-607-611 ◽

2021 ◽

Author(s):

V.G. Yarkova ◽

◽

V.A. Zhmurov ◽

E.B. Klester ◽

Keyword(s):

Lipid Metabolism ◽

Arterial Hypertension ◽

Cardiovascular System ◽

Magnesium Deficiency ◽

Clinical Manifestations ◽

Occupational Disability ◽

Functional Studies ◽

Complex Preparation ◽

Male Patients

Abstract: Purpose of the study: To assess the effects of magnesium deficiency on the indices of lipid metabolism in patients with an arterial hypertension locomotive crews. Purpose of the work: To assess the effect of magnesium deficiency on the pathogenesis of the formation of arterial hypertension in workers of locomotive crews. Correction methods. Materials and methods: This work presents an analysis of the results of clinical observation, special biochemical and functional studies of 136 male patients with arterial hypertension, workers of locomotive crews. Results: In workers of locomotive crews patients with hypertension, increased individual cardiovascular risk according to the SCORE scale, remodeling of the cardiovascular system, as well as the risk of developing occupational disability are interrelated with signs of magnesium deficiency. Conclusion: The inclusion of a complex preparation of magnesium and vitamin B6 in the therapy of arterial hypertension in workers of locomotive crews has a significant effect on the clinical manifestations of chronic stress, magnesium deficiency, improves the dynamics of lipid metabolism, the structural and functional state of the cardiovascular system, and professionally important qualities.

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Comparative Analysis of In Vitro Responses and Regeneration between Diverse Bioenergy Sorghum Genotypes

Plants ◽

10.3390/plants9020248 ◽

2020 ◽

Vol 9 (2) ◽

pp. 248

Author(s):

Barry Flinn ◽

Savanah Dale ◽

Andrew Disharoon ◽

Stephen Kresovich

Keyword(s):

Plantlet Regeneration ◽

Induction Phase ◽

Genetic Studies ◽

Response Profiles ◽

The Common ◽

Parental Lines ◽

Sorghum Genotypes ◽

Better Than

Sorghum has been considered a recalcitrant plant in vitro and suffers from a lack of regeneration protocols that function broadly and efficiently across a range of genotypes. This study was initiated to identify differential genotype-in vitro protocol responses across a range of bioenergy sorghum parental lines and the common grain sorghum genotype Tx430 in order to characterize response profiles for use in future genetic studies. Two different in vitro protocols, LG and WU, were used for comparisons. Distinct genotype-protocol responses were observed, and the WU protocol performed significantly better for plantlet regeneration. Most bioenergy genotypes performed as well, if not better than Tx430, with Rio and PI329311 as the top regenerating lines. Genotypes displayed protocol-dependent, differential phenolic exudation responses, as indicated by medium browning. During the callus induction phase, genotypes prone to medium browning exhibited a response on WU medium which was either equal or greater than on LG medium. Genotype- and protocol-dependent albino plantlet regeneration was also noted, with three of the bioenergy genotypes showing albino plantlet regeneration. Grassl, Rio and Pink Kafir were susceptible to albino plantlet regeneration, with the response strongly associated with the WU protocol. These bioenergy parental genotypes, and their differential responses under two in vitro protocols, provide tools to further explore and assess the role of genetic loci, candidate genes, and allelic variants in the regulation of in vitro responsiveness in sorghum.

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Nutrient problems in sown pasture on an acid soil. 2. Role of lime and superphosphate

Australian Journal of Experimental Agriculture ◽

10.1071/ea9800568 ◽

1980 ◽

Vol 20 (106) ◽

pp. 568 ◽

Cited By ~ 6

Author(s):

KD McLachlan

Keyword(s):

Plant Growth ◽

Acid Soil ◽

Phosphorus Uptake ◽

Subterranean Clover ◽

Trifolium Subterraneum ◽

Titratable Acidity ◽

Yield Response ◽

P 16 ◽

Exchangeable Magnesium

A study was made of the role of superphosphate and lime on subterranean clover (Trifolium subterraneum) production on an infertile acid soil in pot culture. Both fertilizers increased the exchangeable calcium in this deficient soil. Lime and superphosphate were involved in nodulation of the clover plants. There was no evidence of the direct involvement of either of them in the nitrogen fixation process, but they did increase nitrogen uptake by the plants. Once the legume functioned adequately, full expression of the yield response to phosphorus on this deficient soil followed. Most efficient phosphorus use occurred at the lime 1255, superphosphate 2000 kg ha-1 level (lime 1/2, P 16). Heavy lime dressing reduced exchangeable magnesium and the phosphorus available to the plant. Aluminium and pH were involved in the effects observed. Lime reduced CaCl2-extractable aluminium and the titratable acidity in the soil. Phosphate increased the CaCl2-extractable aluminium and apparently reduced the titratable aluminium. The combined treatments reduced these three attributes and promoted increased plant growth. Increased plant growth was associated with increased aluminium uptake by the plants, which suggests that the real effect of aluminium may have been on the calcium and phosphorus uptake by the plants, rather than on the toxic nature of the element itself.

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