Journal ArticleDOI
Soil pH, rhizobia, and vesicular-arbuscular mycorrhizae inoculation effects on growth and heavy metal uptake of alfalfa (Medicago sativa L.)
TLDR
In this paper, the interaction between soil pH and inoculation with rhizobia and vesicular-arbuscular mycorrhizae (VAM) was studied in an industrially polluted soil contaminated with high levels of Zn and Cd.Abstract:
The interaction between soil pH and inoculation with rhizobia and vesicular-arbuscular mycorrhizae (VAM) was studied in an industrially polluted soil contaminated with high levels of Zn and Cd. A silt loam soil (pH 6.7) was amended with Ca(OH)2 or elemental S to adjust the soil pH to 4.3, 5.3, 6.0, and 7.2. Alfalfa (Medicago sativa L.) was planted in each treated soil an subsequently inoculated with Rhizobium meliloti and/or a mixed VAM spore population. Alfalfa growing in soils at a pH of 4.3 and 5.3 failed to survive as a result of soil acidity and heavy metal toxicity. At the three higher pH values, growth and foliar N and P were significantly increased by inoculation with rhizobia or VAM. The greatest increase was observed when both VAM and rhizobia were inoculated together into the soil. With a soil pH of 6.0 and 6.7, the available heavy metal concentration in the soil was high and the VAM significantly decreased heavy metal uptake from these soils. The foliar concentration of Zn was reduced from 455 to 306 μg g−1 by inoculation with VAM (pH 6.0). At the highest soil pH (7.2), however, available heavy metal concentrations were generally lower and NAM significantly increased the heavy metal uptake. The influence of VAM on heavy metal uptake thus appears to be partly a function of the available heavy metal content in the soil.read more
Citations
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Journal ArticleDOI
Role of plants, mycorrhizae and phytochelators in heavy metal contaminated land remediation.
TL;DR: A brief review of studies in the area of phytoaccumulation is provided, most of which have been carried out in Europe and the USA, with particular attention given to the role of phytochelators in making the heavy metals bio- available to the plant and their symbionts in enhancing the uptake of bio-available heavy metals.
Journal ArticleDOI
Effect of heavy metal pollution on mycorrhizal colonization and function: physiological, ecological and applied aspects
TL;DR: This review discusses various aspects of the interactions between heavy metals and mycorrhizal fungi, including the effects of heavy metals on the occurrence of mycor RH fungi, heavy metal tolerance in these micro-organisms, and their effect on metal uptake and transfer to plants.
Journal ArticleDOI
Mineral acquisition by arbuscular mycorrhizal plants
R. B. Clark,S.K. Zeto +1 more
TL;DR: The effects of AMF on enhancing/reducing acquisition of phosphorus (P), nitrogen (N), sulfur (S), boron (B), potassium (K), calcium (Ca), magnesium (Mg), sodium (Na), zinc (Zn), copper (Cu), manganese (Mn), iron (Fe), aluminum (Al), silicon (Si), and some trace elements in plants are reviewed.
Journal ArticleDOI
Acquisition of Cu, Zn, Mn and Fe by mycorrhizal maize (Zea mays L.) grown in soil at different P and micronutrient levels
TL;DR: Evaluation of the contribution of mycorrhizae to uptake of Cu, Zn, Mn, Mn and Fe by maize as influenced by soil P and micronutrient levels found myCorrhizal plants had lower Mn contents than non-mycorrhIZal plants only at the highest soil micronUTrient level.
References
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Book
Soil Chemical Analysis
TL;DR: Soil chemical analysis, Soil Chemical Analysis (SCA), this paper, is a technique for soil chemical analysis that is used in the field of Soil Chemistry and Chemical Engineering.
Journal ArticleDOI
Development of a DTPA soil test for zinc, iron, manganese and copper
Willard L. Lindsay,W. A. Norvell +1 more
TL;DR: A DTPA soil test was developed to identify near-neutral and calcareous soils with insufficient available Zn, Fe, Mn, or Cu for maximum yields of crops.
Book
A manual for the practical study of root-nodule bacteria
TL;DR: A manual for the practical study of root-nodule bacteria is presented in this article, where the authors present a set of root nodule genes and root nodes.
Journal ArticleDOI
Spores of mycorrhizal Endogone species extracted from soil by wet sieving and decanting
J.W. Gerdemann,T.H. Nicolson +1 more
TL;DR: Six types of spores are described which are believed to represent distinct species of Endogone, and in preliminary inoculation experiments 4 of the 6 formed endotrophic mycorrhiza: three of these formed arbuscles and vesicles, and one formed only arbuscules.
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