Growth and nutrient uptake of arbuscular mycorrhizal maize in different depths of soil overlying coal fly ash

Bi, Yinli; Li, X. L.; Christie, Peter; Hu, Zhenqi; Wong, Ming Hung

doi:10.1016/s0045-6535(02)00231-x

Cited by 50 publications

(18 citation statements)

References 21 publications

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“…They are in line with Bi et al (2003) and Nogueira et al (2007). Improved plant root development and acquisition of P may be involved in enhanced Fe acquisition by mycorrhizal plants (Clark and Zeto 1996).…”

Section: Discussionsupporting

confidence: 68%

Arbuscular mycorrhiza enhances nutrient uptake in chickpea

Farzaneh¹,

Vierheilig²,

Lössl³

et al. 2011

PLANT SOIL ENVIRON

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Arbuscular mycorrhiza fungi (AMF) colonize roots of host plants and promote plant growth due to improved uptake of nutrients. While the effects on P uptake are well known, the relevance of AMF for the uptake of other nutrients is less investigated. In the present paper we studied contents of N, P, K, Ca, Mg, Fe, Mn, Cu, and Zn in the legume chickpea in pot experiments during two seasons. Beside the control, the following treatment combinations: (i) the inoculation with the commercial AMF product 'Symbivit ® '; (ii) soil sterilization before inoculation, and (iii) mineral nitrogen application. A moderate level of AMF colonization (18-55% of roots), enhanced the nutrient uptake of chickpea. With P, Mn, and in 2006 also with K, Cu, and Fe the nutrient concentrations were also elevated, even along with a simultaneous increase in plant biomass. Soil sterilization or fertilization with N showed no significant effect on nutrient uptake and biomass production.

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Section: Discussionsupporting

confidence: 68%

Arbuscular mycorrhiza enhances nutrient uptake in chickpea

Farzaneh¹,

Vierheilig²,

Lössl³

et al. 2011

PLANT SOIL ENVIRON

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“…This may be due to higher electrical conductivity in contaminated soils resulting in greater availability of soluble metals, leading to increase AM fungalmediated uptake by plants (Raju et al 1990;Liao et al 2003), and the effect of heavy metals on mycorrhizal occurrence and infectivity seems to be more of a function of the available rather than total content in the soil (El-Kherbawy et al 1989). Further, the high colonization of AM fungi in plants from contaminated soils may also be aiding the plants to cope up against elevated concentrations of nutrients, too, resulting in increased growth (Bi et al 2003) and successful survival of the species (Bi et al 2003) under salinity stress caused by high metal concentrations elevating its negative effect on the plants (Dueck et al 1986), thereby imparting resistances (Gildon and Tinker 1981;Weissenhorn et al 1994a, b andLeyval 1995). Further, our findings are in accordance with Turnau et al (1996) who reported that metaltolerant Oxalis acetosella plants colonizing acid forest soils treated with Cd-Zn and Pb containing industrial dust showed even higher colonization than nontreated soils.…”

Section: Discussionmentioning

confidence: 99%

Arbuscular Mycorrhizal Association in Plants Growing on Metal-Contaminated and Noncontaminated Soils Adjoining Kanpur Tanneries, Uttar Pradesh, India

Khade

Adholeya

2008

Water Air Soil Pollut

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Commonly occurring plant species on metal-contaminated soils and noncontaminated soils adjoining Kanpur Tanneries, Uttar Pradesh, India were surveyed for arbuscular mycorrhizal association. In the present study, pH, electric conductivity (E.C.), organic carbon, macronutrients (available phosphorus, available potassium), micronutrients (Cu and Zn), and toxic metals (Cr, Cd, Pb) were higher in metal-contaminated site compared to noncontaminated site. These factors were also significantly different between metal-contaminated and noncontaminated soils. High E.C. along with toxic concentrations of metals like Cr, Cd, and Pb may have acted as selection pressure for vegetation cover, making the metal-contaminated site hostile for cultivation purpose. The study recorded Arum type of arbuscular mycorrhiza. The highest mean total root colonization levels in metal-contaminated and noncontaminated soils were 100% (Parthenium sp.) and 34.16% (Parthenium sp.), respectively. Maximum mean spore density in metal-contaminated and noncontaminated soils was 19 spores rhizosphere soil −1 (Parthenium sp.) and nine spores rhizosphere soil −1 (Desmostachya bipinnata and Cynodon sp.), respectively. Studies revealed that for a particular plant species, the root colonization levels and spore density (except Cynodon sp.) were higher in contaminated soil compared to noncontaminated soils. A total of six species of arbuscular mycorrhizal fungi belonging to two genera viz., Glomus and Scutellospora were recovered during the study. Species richness of arbuscular mycorrhizal fungi was maximum in the noncontaminated site compared to the metalcontaminated site. This result suggests that continuous exposure of plants and associated arbuscular mycorrhizal fungi to heavy metals can result in tolerant species which can be used for phytoremediation.

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“…However, mycorrhizal inoculation of vegetation prior to planting can greatly stimulate the establishment and growth of plants when fly ash sites are being revegetated (Bi et al, 2003;Juwarkar and Jambhulkar, 2008). Use of inoculum from previously revegetated sites (i.e.…”

Section: Biotechnological Amendmentsmentioning

confidence: 99%