Two Decades of QTL Mapping of Mineral Nutrient Deficiencies in Soybean

2021 ◽  
pp. 315-383
Author(s):  
Moulay Abdelmajid Kassem
Keyword(s):  
Qtl Mapping ◽  
Mineral Nutrient ◽  
Nutrient Deficiencies

scholarly journals Nutrtional profile of some selected food plants of Otwal and Ngai sub counties Oyam district, northern Uganda

2013 ◽  
Vol 13 (57) ◽  
pp. 7428-7451
Author(s):  
A Acipa ◽  
◽  
M Kamatenesi-Mugisha ◽  
H Oryem-Origa
Keyword(s):  
Plant Species ◽  
Food Plant ◽  
Food Plants ◽  
Wild Plants ◽  
Mineral Nutrient ◽  
Wild Food ◽  
Wild Food Plants ◽  
Nutrient Deficiencies ◽  
Indigenous Plants ◽  
General Decline

Wild food plants play an important role in the diet of inhabitants of Oyam District. Some of these plants are drought -resistant and gathered throughout the year . These wild foods are an important source of nutrients. However, there is a lack of comprehensive data re garding the nutrient content s of these indigenous plants. The purpose of this study was to document and assess the nutrient and mineral content s of the selected food plants. Ethnobotanical surveys were used to collect data through formal and informal inter views and focused group discussions. Voucher specimens were collected during field excursions and taken to Makerere Herbarium for proper identification . Nutrients and mineral analyses of wild and cultivated fruits, seeds, underground organs and vegetables from Ngai and Otwal sub counties were carried out using known procedures. They were analysed for mineral nutrients such as calcium, iron, potassium, and phosphorus concentrations. Additionally nutrients such proteins, beta carotene, vitamin C and dietary fibre were determined . On average, vegetables were found to be richer in organic nutrients and minerals followed by fruits and seeds in that order . Generally the wild food plant species were found to be richer sources of mineral nutrient than their cultivated relatives. F or example , the highest concentration of calcium 867.59 mg/100g was found in Acalypha bipartita leaves compared to 294.18 mg/100g in Cleome gynandra . Plant species that showed high iron contents [>30% ] were leaves of swamp hibiscus , African spider flowers , fruits of Tamarind , Black night shade and Jews mallow . It was also noted that among the food plant species analysed, fruits were low in nutrients and mineral elements. Some of these food plants were also considered to have medicinal properties by the locals such as African spider flower, Rattle pod among others. However, it should be noted that there is a general decline in the consumption of wild plants , despite the apparent high nutritional values . T he conservation of wild food plants is not taking place among the communities in the study area, thus the poor rural communities who are limited on balancing their diet could be faced with diseases associated with nutrient deficiencies .

THE NITROGEN METABOLISM OF PICEA GLAUCA (MOENCH) VOSS AND PINUS BANKSIANA LAMB. AS INFLUENCED BY MINERAL NUTRITION

1967 ◽  
Vol 45 (5) ◽  
pp. 695-710 ◽  
Author(s):  
D. J. Durzan ◽  
F. C. Steward
Keyword(s):  
Picea Glauca ◽  
Pinus Banksiana ◽  
Late Summer ◽  
Sole Source ◽  
Mineral Nutrient ◽  
Soluble Nitrogen ◽  
Nutrient Deficiencies ◽  
Nitrogenous Compounds ◽  
Guanidino Compounds ◽  
Low Potassium

White spruce (Picea glauca (Moench) Voss) and jack pine (Pinus banksiana Lamb.) seedlings were grown in sand cultures by Swan (who reported on their growth in 1960) and they were irrigated with full nutrient solution high in sodium, or solutions deficient in each of several nutrients. Responses characteristic of the following six treatments were studied: full nutrient but with low sodium; nitrate or ammonium as the sole source of nitrogen; low nitrogen; low phosphorus; and low potassium. When shoot elongation had ceased, extracts of seedling parts (leaves, stems with buds, and roots) were examined by paper-chromatographic methods for free nitrogenous compounds.In leaves, the relative proportions of nitrogenous compounds in spruce and pine differed from those in the stems and roots. Nutrient deficiency and the form of nitrogen available affected both the total amount and relative composition of the soluble nitrogen. Under better mineral nutrient conditions, arginine accumulated while amide (glutamine) remained low. The accumulation of a number of compounds resulting from nutritional deficiency, for example glutamine, with low potassium, indicated that blocks occurred in metabolic pathways. Ammonium nitrogen was shown to foster arginine and amides (especially in spruce) and to lead to a large increase of free guanidino compounds which hitherto have passed unnoticed. By contrast, in leaves nourished by nitrate as the sole source of nitrogen, guanidino compounds were less prominent. Under the conditions of reduced growth and protein synthesis brought about by specified nutrient deficiencies, many unidentified compounds, which were not known intermediates of the ornithine or urea cycle, appeared.The present study dealt with observations made at one season of the year (late summer) and does not preclude the occurrence of somewhat different responses which might have been observed at other times of the year.

scholarly journals The Effect of Mineral Nutrient Deficiency on the Content of free Amino Acids in Setaria Sphacelata

1972 ◽  
Vol 25 (1) ◽  
pp. 77 ◽  
Author(s):  
RD Court ◽  
WT Williams ◽  
MP Hegarty
Keyword(s):  
Amino Acids ◽  
Free Amino Acids ◽  
Free Amino ◽  
Nitrogen Deficiency ◽  
Nutrient Deficiency ◽  
Leaf Nitrogen ◽  
Mineral Nutrient ◽  
Nutrient Deficiencies ◽  
Setaria Sphacelata ◽  
Almost All

The effects of several single mineral nutrient deficiencies on the free amino acid composition of S. sphacelata, grown in water culture, have been examined. Most deficiencies result in an accumulation of the free amino acids. Severe copper deficiency causes a large increase in the alanine content of the leaf. Nitrogen deficiency causes decreases in almost all amino acids.

Limitation to Growth of Basswood from Mineral Nutrient Deficiencies

1959 ◽  
Vol 121 (1) ◽  
pp. 22-28 ◽  
Author(s):  
William C. Ashby
Keyword(s):  
Mineral Nutrient ◽  
Nutrient Deficiencies

Mineral nutrient deficiencies in field-grown forage sorghums

1979 ◽  
Vol 7 (4) ◽  
pp. 343-345
Author(s):  
B. J. Hunt ◽  
A. O. Taylor ◽  
P. Nes
Keyword(s):  
Mineral Nutrient ◽  
Nutrient Deficiencies

The effect of mineral nutrient deficiencies on the structure of the leaf cells of tomato, spinach, and maize

1966 ◽  
Vol 14 (1) ◽  
pp. 1 ◽  
Author(s):  
M Vesk ◽  
JV Possingham ◽  
FV Mercer
Keyword(s):  
Electron Microscopy ◽  
Iron Deficiency ◽  
Fluorescence Microscopy ◽  
Phase Contrast ◽  
Cell Ultrastructure ◽  
Mineral Nutrient ◽  
Manganese Deficiency ◽  
Nutrient Deficiencies ◽  
Maize Plants ◽  
Macro And Micronutrients

Observations were made by electron microscopy of the leaf cells of normal (full nutrient) tomato, spinach, and maize plants and of plants grown deficient in each of the known essential macro- and micronutrients except chlorine. In the case of spinach, observations were also made by phase contrast and fluorescence microscopy. A feature of this study was the large variation found in the shape, size, and appearance of chloroplast sections from both full-nutrient and mineral deficient plants. A representative range of photographs showing this variation is presented. Specific changes in chloroplast appearance were found in the cases of manganese deficiency and iron deficiency and distinctive changes were found in the 10 other deficiencies. The results obtained are discussed in relation to other published results describing the effects of mineral deficiencies on plant cell ultrastructure.

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