Arbuscular mycorrhizal fungi can alleviate the adverse effects of chlorothalonil on Oryza sativa L.

Zhang, Xuhong; Zhu, Yan; Lin, Aoxiang; Chen, Baodong; Smith, Sally E.; Smith, F. A.

doi:10.1016/j.chemosphere.2006.01.034

Cited by 26 publications

(7 citation statements)

References 37 publications

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“…Although some recent studies have shown that several plants can tolerate and detoxify Cd, few studies have examined the effects of soil microbes that form associations with these plants, especially arbuscular mycorrhizal (AM) fungi. AM fungi play significant roles in the recycling of plant nutrients, maintenance of soil structure, detoxification of noxious chemicals, control of plant pests, and regulation of plant growth and its interactions with the soil environment [9] , [10] . Plant-microbe symbioses are ubiquitous in both natural and most anthropogenically influenced soils [11] – [13] .…”

Section: Introductionmentioning

confidence: 99%

Arbuscular Mycorrhizal Colonization Alters Subcellular Distribution and Chemical Forms of Cadmium in Medicago sativa L. and Resists Cadmium Toxicity

2012

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Some plants can tolerate and even detoxify soils contaminated with heavy metals. This detoxification ability may depend on what chemical forms of metals are taken up by plants and how the plants distribute the toxins in their tissues. This, in turn, may have an important impact on phytoremediation. We investigated the impact of arbuscular mycorrhizal (AM) fungus, Glomus intraradices, on the subcellular distribution and chemical forms of cadmium (Cd) in alfalfa (Medicago sativa L.) that were grown in Cd-added soils. The fungus significantly colonized alfalfa roots by day 25 after planting. Colonization of alfalfa by G. intraradices in soils contaminated with Cd ranged from 17% to 69% after 25–60 days and then decreased to 43%. The biomass of plant shoots with AM fungi showed significant 1.7-fold increases compared to no AM fungi addition under the treatment of 20 mg·kg−1 Cd. Concentrations of Cd in the shoots of alfalfa under 0.5, 5, and 20 mg·kg−1 Cd without AM fungal inoculation are 1.87, 2.92, and 2.38 times higher, respectively, than those of fungi-inoculated plants. Fungal inoculation increased Cd (37.2–80.5%) in the cell walls of roots and shoots and decreased in membranes after 80 days of incubation compared to untreated plants. The proportion of the inactive forms of Cd in roots was higher in fungi-treated plants than in controls. Furthermore, although fungi-treated plants had less overall Cd in subcellular fragments in shoots, they had more inactive Cd in shoots than did control plants. These results provide a basis for further research on plant-microbe symbioses in soils contaminated with heavy metals, which may potentially help us develop management regimes for phytoremediation.

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Section: Introductionmentioning

confidence: 99%

Arbuscular Mycorrhizal Colonization Alters Subcellular Distribution and Chemical Forms of Cadmium in Medicago sativa L. and Resists Cadmium Toxicity

2012

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“…As observed, the colonization percentage was significantly decreased by the chlorothalonil application; however, there were no differences in root colonization percentage between the single dose and the two mycorrhizal doses, in neither fungicide treated nor untreated plant seeds. The concentration of chlorothalonil fungicide may also affect the symbiosis whith the host plant and decreased the colonization ratios [17].…”

Section: Resultads and Discussionmentioning

confidence: 99%

Root colonization by mycorrhizal INIFAP<sup>MR</sup> in barley seed treated with fungicide

Grageda-Cabrera¹,

González-Figueroa²,

Lozano-Contreras³

et al. 2013

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The effect of barley seed treated with chlorothalonil fungicide on mycorrhizal root colonization was evaluated. The treatments were: 1) Seed with Mycorrhizal INIFAP ® , one, two and three doses, and uninoculated seed; 2) Seed with and without fungicide. Monthly seed plantings were performed with different storage time, looking forward to assessing the colonization degree of the roots. As revealed by the results, the seed treated with chlorothalonil did not lower the root colonization by Mycorrhizal INIFAP ® ; the chlorothalonil treatment had a 32.63% average root colonization, whereas without chlorothalonil, it was 36.46%. When the seed was treated with root colonization by Mycorrhizal INIFAP ® , this was lower in the treatment with one dose; no significant difference was revealed by the treatments with either double or triple doses. The colonization percentage was progressively decreased by seed storage. The root colonization by Mycorrhizal INIFAP ® , throughout the inoculated seed storage time, remained constant and unchanged for the first six months, but then decreased in 50% within a 10-month period for both treated and not treated fungicide seed.

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“…Inoculation of upland rice (Oryza sativa) with Glomus mosseae reduced the activity of the enzymes ascorbate peroxidase, catalase and peroxidase, and alleviated the adverse effects of chlorothalonil on growth [210]. The activity of phosphatase and urease in soils was stimulated by inoculation of Elsholtzia splendens and Zea mays with G. caledonium and G. margarita [211], and also Trifolium pratense with G. mosseae [212,213].…”

Section: Alteration Of Enzymatic Activities In Am-inoculated Plantsmentioning

confidence: 99%

A 60-year journey of mycorrhizal research in China: Past, present and future directions

Duan

Chen

et al. 2010

Sci. China Life Sci.

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The significance of mycorrhizas (fungal roots in 90% of land plants) in plant nutrient acquisition and growth, element biogeochemical cycling and maintaining of terrestrial ecosystem structures has been globally established for more than 120 years. Great progress in mycorrhizal research in the past 60 years (1950-2009, 1981-2009 in particular) has also been made across China, particularly in the mainland, Hong Kong and Taiwan. For instance, a total of 20 new and approximately 120 records of arbuscular mycorrhizal (AM) fungal species, 30 new and approximately 800 records of ectomycorrhizal (EM) fungal species, a dozen of new and approximately 100 records of orchid mycorrhizal (OM) fungal species have been isolated by morphological observation and/or molecular identification in China since the 1950s. Great accomplishment has also been made in the following area, including fungal species richness and genetic structure, relationships between species composition and plant taxa, effects of mycorrhizal fungi on plant nutrient uptake and growth, resistances to pathogens and interactions with other soil microorganisms, potential of mycorrhizal fungi in phytoremediation and/or land reclamation, alterations of enzymatic activities in mycorrhizal plants, and elevated CO(2) and O(3) on root colonization and species diversity. Unfortunately, the international community cannot easily appreciate almost all Chinese mycorrhizal studies since the vast majority of them have been published in Chinese and/or in China-based journals. The aim of this review is to make a comprehensive exposure of the past and present China's major mycorrhizal research to the whole world, and then to suggest potential directions for the enhancement of future mycorrhizal research within and/or between the Chinese and international mycorrhizal community.

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Arbuscular mycorrhizal fungi can alleviate the adverse effects of chlorothalonil on Oryza sativa L.

Cited by 26 publications

References 37 publications

Arbuscular Mycorrhizal Colonization Alters Subcellular Distribution and Chemical Forms of Cadmium in Medicago sativa L. and Resists Cadmium Toxicity

Arbuscular Mycorrhizal Colonization Alters Subcellular Distribution and Chemical Forms of Cadmium in Medicago sativa L. and Resists Cadmium Toxicity

Root colonization by mycorrhizal INIFAP<sup>MR</sup> in barley seed treated with fungicide

A 60-year journey of mycorrhizal research in China: Past, present and future directions

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Arbuscular mycorrhizal fungi can alleviate the adverse effects of chlorothalonil on Oryza sativa L.

Cited by 26 publications

References 37 publications

Arbuscular Mycorrhizal Colonization Alters Subcellular Distribution and Chemical Forms of Cadmium in Medicago sativa L. and Resists Cadmium Toxicity

Arbuscular Mycorrhizal Colonization Alters Subcellular Distribution and Chemical Forms of Cadmium in Medicago sativa L. and Resists Cadmium Toxicity

Root colonization by mycorrhizal INIFAP&lt;sup&gt;MR&lt;/sup&gt; in barley seed treated with fungicide

A 60-year journey of mycorrhizal research in China: Past, present and future directions

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Root colonization by mycorrhizal INIFAP<sup>MR</sup> in barley seed treated with fungicide