Iron Accumulation, Root Peroxidase Activity, and Varietal Interactions in Soybean Genotypes That Differ in Iron Nutrition

Elmstrom, G. W.; Howard, Frank D.

doi:10.1104/pp.44.8.1108

Cited by 19 publications

(9 citation statements)

References 23 publications

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“…They found that the soybean variety that was inefficient in accumulating Fe caused a reduction in Fe uptake by the variety that was efficient. These results were confirmed by Elmstrom and Howard (1969) from plants grown in a growth chamber in nutrient solutions containing various levels of Fe.…”

Section: Discussionsupporting

confidence: 62%

Differential Accumulations of Cadmium and Zinc by Corn Hybrids Grown on Soil Amended with Sewage Sludge¹

Hinesly¹,

Alexander²,

Redborg³

et al. 1982

Agronomy Journal

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Researchers have recognized that different varieties and cultivars of plants subjected to the same growing conditions frequently take up different amounts of essential and nonessential trace elements. Differences in uptake appear to be predisposed genetically. In designing studies to determine the nature of the inherited capacity of corn (Zea mays L.) to control the uptake of heavy metals some additional information was needed. The objectives of this study were to determine the extent to which Cd uptake was affected by the proximity of growing plants, whether or not maternal effects were present and the extent to which uptake patterns varied from year to year under normal field conditions. Where corn inbreds known to accumulate relatively high amounts of Cd in leaves and grain were paired with those that took up low amounts in pots of Ipava silt loam (Aquic Argiudoll, fine, montmorillonitic, mesic, pH 5.5) containing 57 mg Cd/kg and 864 mg Zn/kg, supplied as constituents of sewage sludge, the uptake of Cd by individual inbreds was not altered. Using the same soil, reciprocal crosses of corn inbreds that accumulated high and low amounts of either Cd or Zn were grown for 6 weeks in pots. Regardless of which inbred was used as the female parent, concentrations of metals in leaves were not significantly different. Two hybrids, differing only in their capacities to accumulate Cd, were grown in a field study for 3 consecutive years on replicated control and sewage sludge‐amended split plots. Initial annual applications of sludge were made 9 years prior to the study and were continued throughout the 3 years. At the beginning, where maximum rates of sludge had been applied, the soil surface contained 28 mg Cd/kg and during the study 31 kg/ha of sludge‐borne Cd were applied. Cadmium and Zn concentrations in leaves, grain, and stover from both hybrids were increased each year by increasingly higher applications of sludge, except in grain from the hybrid selected to take up low amounts of Cd. During the last year, grain from the low‐Cd accumulator grown on maximum‐sludge‐treated plots had Cd concentrations that were not significantly different than those in grain from the high‐Cd accumulator grown on control plots. Grain‐Cd concentrations for the high‐Cd accumulator were 13 to 18 times higher than for the low‐Cd accumulator when they were grown together on maximum‐sludge‐treated plots. Accumulative sludge applications did not cause increased Cd concentrations in grain from either of the two hybrids, but did cause increased levels of both Zn and Cd in leaves and stover of the high Cd accumulator. Phytotoxicity symptoms were not observed, even though concentrations of Cd ranged from 20 to 42 and 1.5 to 1.8 mg/kg in the leaves and grain, respectively, of the high accumulator grown on plots treated with maximum amounts of sludge.

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Section: Discussionsupporting

confidence: 62%

Differential Accumulations of Cadmium and Zinc by Corn Hybrids Grown on Soil Amended with Sewage Sludge¹

Hinesly¹,

Alexander²,

Redborg³

et al. 1982

Agronomy Journal

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“…This observation has never been reported before. It has been shown that efficient soybean plants generally are the shortest (Elmstrom and Howard 1969), suggesting a negative correlation between stem length and IDC tolerance. Perhaps the large amounts of Fe being channelled to bigger unifoliolate leaves impair the Fe that is left for remobilization to the trifoliates, which are emerging after the unifoliolates.…”

Section: Discussionmentioning

confidence: 99%

“…The lack of iron is one of the more common nutrients associated with chlorosis. However, zinc deficiencies in the soybean plant will also cause chlorosis (Elmstrom and Howard 1969;Sliman and Motto 1990). When looking at Zn cotyledon concentration and remobilization, no significant correlation was found to SPAD values.…”

Section: Discussionmentioning

confidence: 99%

Morpho-physiological parameters affecting iron deficiency chlorosis in soybean (Glycine max L.)

Vasconcelos

Grusak

2013

Plant Soil

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“…Freshly prepared nutrient solution used for culturing plants had the following composition in millimoles per liter: Ca(N03)2.4H20, 0.63; Mg(NO3)2.6H20, 0.14; K21HPO4, 0.22; NH4NO3, 0.11; KNO3, 0.03; (NH4)ZS04, 0.07, and in ymoles per liter: MnCl2.4H20, 1.18; ZnSO4.7H20, 0.31; CuS04-5H20, 0.08; H3B03, 3.29; Na2MoO4.2H20, 0.05. In all instances the pH of the nutrient solution decreased from initial values of about 7.5 to about 4.2 during the 7-day absorption period (6).…”

Section: Materalis and Methodsmentioning

confidence: 99%

“…Two efficient soybean genotypes-Hawkeye (HA) and E62-9 (E-9)-and two inefficient genotypes-PI-54619-5-1 (PI) and A62-10 (1-10)-were grown in a growth chamber as described previously (6). Seeds of the four genotypes were allowed to germinate in a plastic tray of distilled water.…”

Section: Materalis and Methodsmentioning

confidence: 99%

Promotion and Inhibition of Iron Accumulation in Soybean Plants

Elmstrom

Howard

1970

Plant Physiol.

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Plants of four soybean (Glycine max L. Merrill) genotypes differing in their ability to accumulate iron were studied. The efficient genotypes were Hawkeye (HA) and A62-9 (E-9), and the inefficient ones were PI-54619-5-1 (PI) and A62-10 (1-10). When plants of opposite efficiency were grown in the same solution, iron accumulation decreased in the primary leaves of efficient plants, but it was unaffected or slightly reduced in the leaves of inefficient plants.Absorption of iron during a 24-hour period by 17-day-old plants indicated that solutions in which either HA or PI plants had been previously cultured contained a heat-labile factor which increased iron accumulation by iron-stressed HA plants. Also, it was found that HA plants from mixed culture accumulated about 50% less iron than HA plants grown in pure culture, independent of the absorption solution used. The conditions described, therefore, may either stimulate or inhibit iron accumulation in efficient soybean plants.The superior ability of efficient soybean genotypes to accumulate iron has been attributed to the greater reducing capacity of their roots than that of inefficient genotypes (4, 5). Inhibitory factors may also be involved, since it has been shown (6, 7) that iron accumulation by HA plants was reduced when these plants were grown in mixed culture with PI plants. Also, certain compounds indigenous to plant cells-i.e., citrate, riboflavin 5-phosphate, and glycine-inhibit iron accumulation by HA plants (7).The purpose of this investigation was to study iron accumulation by soybean plants grown alone and in mixed culture and to evaluate the influence of nutrient solution composition and mixed culture on iron accumulation by iron-stressed plants. MATERALIS AND METHODSTwo efficient soybean genotypes-Hawkeye (HA) and E62-9 (E-9)-and two inefficient genotypes-PI-54619-5-1 (PI) and A62-10 (1-10)-were grown in a growth chamber as described previously (6). Seeds of the four genotypes were allowed to germinate in a plastic tray of distilled water. After 4 lays seedlings with protruding radicles were selected and transferred to a perforated Plexiglass disk suspended over aerated nutrient solu- tion containing all essential elements except iron. Freshly prepared nutrient solution used for culturing plants had the following composition in millimoles per liter: Ca(N03)2.4H20, 0.63; Mg(NO3)2.6H20, 0.14; K21HPO4, 0.22; NH4NO3, 0.11; KNO3, 0.03; (NH4)ZS04, 0.07, and in ymoles per liter: MnCl2.4H20, 1.18; ZnSO4.7H20, 0.31; CuS04-5H20, 0.08; H3B03, 3.29; Na2MoO4.2H20, 0.05. In all instances the pH of the nutrient solution decreased from initial values of about 7.5 to about 4.2 during the 7-day absorption period (6).To study the effect of one genotype on iron absorption by the other, plants were grown in mixed culture for a 7-day absorption period in freshly prepared nutrient solutions containing 1.1, 5.6, or 11.1 /LM chelated iron (FeEDDHA) labeled with 2.22 lc of 59Fe per liter. In all instances 16 plants were grown in 9 liters of solution. One mixed cultur...

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Iron Accumulation, Root Peroxidase Activity, and Varietal Interactions in Soybean Genotypes That Differ in Iron Nutrition

Cited by 19 publications

References 23 publications

Differential Accumulations of Cadmium and Zinc by Corn Hybrids Grown on Soil Amended with Sewage Sludge¹

Differential Accumulations of Cadmium and Zinc by Corn Hybrids Grown on Soil Amended with Sewage Sludge¹

Morpho-physiological parameters affecting iron deficiency chlorosis in soybean (Glycine max L.)

Promotion and Inhibition of Iron Accumulation in Soybean Plants

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Iron Accumulation, Root Peroxidase Activity, and Varietal Interactions in Soybean Genotypes That Differ in Iron Nutrition

Cited by 19 publications

References 23 publications

Differential Accumulations of Cadmium and Zinc by Corn Hybrids Grown on Soil Amended with Sewage Sludge1

Differential Accumulations of Cadmium and Zinc by Corn Hybrids Grown on Soil Amended with Sewage Sludge1

Morpho-physiological parameters affecting iron deficiency chlorosis in soybean (Glycine max L.)

Promotion and Inhibition of Iron Accumulation in Soybean Plants

Contact Info

Product

Resources

About

Differential Accumulations of Cadmium and Zinc by Corn Hybrids Grown on Soil Amended with Sewage Sludge¹

Differential Accumulations of Cadmium and Zinc by Corn Hybrids Grown on Soil Amended with Sewage Sludge¹