Molecular community analysis of arbuscular mycorrhizal fungi associated with five selected plant species from heavy metal polluted soils

Long, Liang Kun; Yao, Qing; Guo, Jun; Yang, Rui; Huang, Yong; Zhu, Hong Hui

doi:10.1016/j.ejsobi.2010.06.003

Cited by 61 publications

(34 citation statements)

References 40 publications

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“…However, the sensitivity of F. mosseae was more than P. indica to Cd treatment at 0.6 and 0.9 mM Cd. This finding is in line with results of Long et al (2010) who reported that sensitivity of AMF symbiosis to heavy metal contaminated soil is expressed as a reduction in spore germination, hyphal growth and root colonization. In co-inoculated plants, root colonization was significantly decreased with excess of Cd in the soil from 0 to 0.3 and from 0.6 to 0.9 mM Cd.…”

Section: Resultssupporting

confidence: 82%

Antioxidant activity and gene expression associated with cadmium toxicity in wheat affected by mycorrhizal fungus

Shahabivand¹,

Maivan²,

Mahmoudi³

et al. 2016

Zemdirbyste-Agriculture

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In this study, the effects of Funelliformis mosseae and Piriformospora indica on wheat growth, enzyme activity and gene expression of catalase (CAT), ascorbate peroxidase (APX) and glutathione S-transferase (GST) in wheat leaves under different cadmium (Cd) toxicity were investigated. Cd exposure reduced plant dry mass and enzyme activities of CAT and APX, but it increased GST activity. The presence of F. mosseae and P. indica (alone or together) caused an increase in plant dry mass and activities of CAT, APX and GST. In response to Cd exposure, transcriptional level of CAT was decreased but, transcription of APX and GST was up-regulated. Although F. mosseae induced the expression of the antioxidant genes, P. indica was not detected to have such a strong induction in the genes expression. The results obtained from this study suggest that F. mosseae and P. indica can be used to alleviate Cd stress in wheat plants in contaminated soil. Also, no correlation was observed between mRNA and enzyme alterations in some cases, which indicate that post-transcriptional and post-translational regulations may play major roles.

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Section: Resultssupporting

confidence: 82%

Antioxidant activity and gene expression associated with cadmium toxicity in wheat affected by mycorrhizal fungus

Shahabivand¹,

Maivan²,

Mahmoudi³

et al. 2016

Zemdirbyste-Agriculture

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“…This finding supports the work of Duponnois et al (2006), who showed that inoculation of Sorghum bicolor with Cd-tolerant bacteria significantly increased Cd uptake, and also the work of Sheng and Xia (2006), who observed that soil inoculation with isolates containing bacteria caused a 74 % increase in the Cd content of Brassica napus. Arbuscular mycorrhizal fungi appear to play a similar role, as suggested by the results of Long et al (2010), who found that inoculation of Perilla frutescens, Litsea cubeba, Dysphania ambrosioides, Phytolacca Americana and Rehmannia glutinosa resulted in enhanced uptake of Cd, Zn, Cu and Pb. In contrast, some soil-inoculated microorganisms, such as Azospirillum lipferum, Arthrobacter mysorens, Agrobacterium radiobacter (Belimov et al 2004), and arbuscular mycorrhizae (Karagiannidis and Nikolaou 2000) have been shown to decrease Cd phytoavailability.…”

Section: Influence Of Soil Microbial Activity On CD Behavior In Soilmentioning

confidence: 58%

Cadmium Bioavailability, Uptake, Toxicity and Detoxification in Soil-Plant System

Shahid

Dumat

Khalid

et al. 2016

Reviews of Environmental Contamination and Toxicology

232

175

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This review summarizes the findings of the most recent studies, published from 2000 to 2016, which focus on the biogeochemical behavior of Cd in soil-plant systems and its impact on the ecosystem. For animals and people not subjected to a Cd-contaminated environment, consumption of Cd contaminated food (vegetables, cereals, pulses and legumes) is the main source of Cd exposure. As Cd does not have any known biological function, and can further cause serious deleterious effects both in plants and mammalian consumers, cycling of Cd within the soil-plant system is of high global relevance.The main source of Cd in soil is that which originates as emissions from various industrial processes. Within soil, Cd occurs in various chemical forms which differ greatly with respect to their lability and phytoavailability. Cadmium has a high phytoaccumulation index because of its low adsorption coefficient and high soil-plant mobility and thereby may enter the food chain. Plant uptake of Cd is believed to occur mainly via roots by specific and non-specific transporters of essential nutrients, as no Cd-specific transporter has yet been identified. Within plants, Cd causes phytotoxicity by decreasing nutrient uptake, inhibiting photosynthesis, plant growth and respiration, inducing lipid peroxidation and altering the antioxidant system and functioning of membranes. Plants tackle Cd toxicity via different defense strategies such as decreased Cd uptake or sequestration into vacuoles. In addition, various antioxidants combat Cd-induced overproduction of ROS. Other mechanisms involve the induction of phytochelatins, glutathione and salicylic acid.

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“…irregulare group, which includes the most-generalistic AMF found in the molecular diversity studies conducted so far (16,23). Glo G14 matched database sequences belonging to uncultured Glomus, which had been reported previously from Phytolacca americana and Perilla frutescens roots (21). The third-most-abundant sequence type in galls, appearing also in infected and uninfected roots, was Pa1, which corresponds to Paraglomus laccatum.…”

Section: Discussionmentioning

confidence: 99%

Evidence of Differences between the Communities of Arbuscular Mycorrhizal Fungi Colonizing Galls and Roots of Prunus persica Infected by the Root-Knot Nematode Meloidogyne incognita

Alguacil

Torrecillas

Lozano

et al. 2011

Appl Environ Microbiol

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Arbuscular mycorrhizal fungi (AMF) play important roles as plant protection agents, reducing or suppressing nematode colonization. However, it has never been investigated whether the galls produced in roots by nematode infection are colonized by AMF. This study tested whether galls produced by Meloidogyne incognita infection in Prunus persica roots are colonized by AMF. We also determined the changes in AMF composition and biodiversity mediated by infection with this root-knot nematode. DNA from galls and roots of plants infected by M. incognita and from roots of noninfected plants was extracted, amplified, cloned, and sequenced using AMF-specific primers. Phylogenetic analysis using the small-subunit (SSU) ribosomal DNA (rDNA) data set revealed 22 different AMF sequence types (17 Glomus sequence types, 3 Paraglomus sequence types, 1 Scutellospora sequence type, and 1 Acaulospora sequence type). The highest AMF diversity was found in uninfected roots, followed by infected roots and galls. This study indicates that the galls produced in P. persica roots due to infection with M. incognita were colonized extensively by a community of AMF, belonging to the families Paraglomeraceae and Glomeraceae, that was different from the community detected in roots. Although the function of the AMF in the galls is still unknown, we hypothesize that they act as protection agents against opportunistic pathogens.

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Molecular community analysis of arbuscular mycorrhizal fungi associated with five selected plant species from heavy metal polluted soils

Cited by 61 publications

References 40 publications

Antioxidant activity and gene expression associated with cadmium toxicity in wheat affected by mycorrhizal fungus

Antioxidant activity and gene expression associated with cadmium toxicity in wheat affected by mycorrhizal fungus

Cadmium Bioavailability, Uptake, Toxicity and Detoxification in Soil-Plant System

Evidence of Differences between the Communities of Arbuscular Mycorrhizal Fungi Colonizing Galls and Roots of Prunus persica Infected by the Root-Knot Nematode Meloidogyne incognita

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