Arbuscular mycorrhiza affects nickel translocation and expression of ABC transporter and metallothionein genes in Festuca arundinacea

Shabani, Leila; Sabzalian, Mohammad R.; pour, Sodabeh Mostafavi

doi:10.1007/s00572-015-0647-2

Cited by 62 publications

(29 citation statements)

References 54 publications

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“…Gerd. & Trappe under Ni exposure (Shabani et al, ) and NRAMP , MT2b , and PCS in Solanum lycopersicum L. inoculated with R. irregularis grown on HM‐polluted soil (Fuentes et al, ). These findings indicate that mycorrhizal‐induced transcriptional overexpression of host genes involved in HM transport, detoxification, and sequestration can lead to enhanced HM accumulation in mycorrhizal plants.…”

Section: Physiological and Molecular Mechanisms Of Hm Accumulation Inmentioning

confidence: 99%

Physiological and molecular mechanisms of heavy metal accumulation in nonmycorrhizal versus mycorrhizal plants

Shi

Zhang

Chen

et al. 2018

Plant Cell & Environment

133

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Uptake, translocation, detoxification, and sequestration of heavy metals (HMs) are key processes in plants to deal with excess amounts of HM. Under natural conditions, plant roots often establish ecto‐ and/or arbuscular‐mycorrhizae with their fungal partners, thereby altering HM accumulation in host plants. This review considers the progress in understanding the physiological and molecular mechanisms involved in HM accumulation in nonmycorrhizal versus mycorrhizal plants. In nonmycorrhizal plants, HM ions in the cells can be detoxified with the aid of several chelators. Furthermore, HMs can be sequestered in cell walls, vacuoles, and the Golgi apparatus of plants. The uptake and translocation of HMs are mediated by members of ZIPs, NRAMPs, and HMAs, and HM detoxification and sequestration are mainly modulated by members of ABCs and MTPs in nonmycorrhizal plants. Mycorrhizal‐induced changes in HM accumulation in plants are mainly due to HM sequestration by fungal partners and improvements in the nutritional and antioxidative status of host plants. Furthermore, mycorrhizal fungi can trigger the differential expression of genes involved in HM accumulation in both partners. Understanding the molecular mechanisms that underlie HM accumulation in mycorrhizal plants is crucial for the utilization of fungi and their host plants to remediate HM‐contaminated soils.

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Section: Physiological and Molecular Mechanisms Of Hm Accumulation Inmentioning

confidence: 99%

Physiological and molecular mechanisms of heavy metal accumulation in nonmycorrhizal versus mycorrhizal plants

Shi

Zhang

Chen

et al. 2018

Plant Cell & Environment

133

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“…Mycorrhizae may also alter host metabolism to respond to metal toxicity. Shabani et al (2016) have shown that inoculation of Festuca arundinacea with Funneliformis mosseae increased the transcription of host metallothioneins and ABC transporters (which aid in the excretion of toxins) in nickel-contaminated soil.…”

Section: Impact On Crop Healthmentioning

confidence: 99%

Engineering Mycorrhizal Symbioses to Alter Plant Metabolism and Improve Crop Health

French

2017

Front. Microbiol.

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Creating sustainable bioeconomies for the 21st century relies on optimizing the use of biological resources to improve agricultural productivity and create new products. Arbuscular mycorrhizae (phylum Glomeromycota) form symbiotic relationships with over 80% of vascular plants. In return for carbon, these fungi improve plant health and tolerance to environmental stress. This symbiosis is over 400 million years old and there are currently over 200 known arbuscular mycorrhizae, with dozens of new species described annually. Metagenomic sequencing of native soil communities, from species-rich meadows to mangroves, suggests biologically diverse habitats support a variety of mycorrhizal species with potential agricultural, medical, and biotechnological applications. This review looks at the effect of mycorrhizae on plant metabolism and how we can harness this symbiosis to improve crop health. I will first describe the mechanisms that underlie this symbiosis and what physiological, metabolic, and environmental factors trigger these plant-fungal relationships. These include mycorrhizal manipulation of host genetic expression, host mitochondrial and plastid proliferation, and increased production of terpenoids and jasmonic acid by the host plant. I will then discuss the effects of mycorrhizae on plant root and foliar secondary metabolism. I subsequently outline how mycorrhizae induce three key benefits in crops: defense against pathogen and herbivore attack, drought resistance, and heavy metal tolerance. I conclude with an overview of current efforts to harness mycorrhizal diversity to improve crop health through customized inoculum. I argue future research should embrace synthetic biology to create mycorrhizal chasses with improved symbiotic abilities and potentially novel functions to improve plant health. As the effects of climate change and anthropogenic disturbance increase, the global diversity of arbuscular mycorrhizal fungi should be monitored and protected to ensure this important agricultural and biotechnological resource for the future.

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“…Similarly, presence of nickel in soil has been reported to have adverse effects on growth of tall fescue (Festuca arundinacea L.) and contents of photosynthetic pigments. Inoculation of these plants with AM fungi (R. mosseae) reduced nickel uptake from roots to shoots reflecting the importance of these fungi in relieving nickel stress (Shabani et al, 2016). Adverse effects of high concentration of zinc on the plant growth and other parameters, such as, putrescine profile in the leaves of poplar, have been reduced in plants colonized by Rhizophagus mosseae.…”

Section: Arbuscular Mycorrhizal Fungi and Phytoremediationmentioning

confidence: 99%

An Insight into Phytoremediation of Heavy Metals from Soil Assisted by Ancient Fungi from Glomeromycota-Arbuscular Mycorrhizal Fungi

Shakeel¹,

Yaseen²

2015

Science, Technology and Development

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Arbuscular Mycorrhizal (AM) fungi form mutualistic relationship with plant roots which improves plant growth and confers tolerance against many types of stresses, including heavy metals tolerance. AM fungi allows enhanced-growth of plants, grown on heavy metals contaminated soil. They have been involved in regulating the uptake of heavy metals from root to shoot exploiting the potential of membrane transporters. These fungi either increase the uptake of heavy metals from root to shoot (phytoextraction) or stop their spreading in soil, using different mechanisms including accumulation of toxic metals in hyphae, chelation of metals with substances released by fungal hyphae or adhering these metals with roots surface or chitin of fungal cell wall. The latter approach, used by AM fungi, is known as phytostabilization, which stops the dissemination and leakage of heavy metals in the soil keeping the ecosystem in equilibrium and makes it suitable for optimum plant growth. Apart from this, spores isolated from the heavy metals contaminated soil have shown enhanced resistance to presence of heavy metals than non-contaminated soil. Such acquired resistance or tolerance is not durable as it has not being developed as a result of genetic changes but due to phenotypic plasticity of spores. Such resistance may be lost if these spores are being grown on non-heavy-metals-contaminated soil. For efficient phytoremediation, the potential of plant transporters in response to AM fungi should be exploited. It would be ideal to see if these membrane transporters genes could be expressed by AM fungal promoters for enhanced metals remediation and restoring the damaged ecosystem.

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Arbuscular mycorrhiza affects nickel translocation and expression of ABC transporter and metallothionein genes in Festuca arundinacea

Cited by 62 publications

References 54 publications

Physiological and molecular mechanisms of heavy metal accumulation in nonmycorrhizal versus mycorrhizal plants

Physiological and molecular mechanisms of heavy metal accumulation in nonmycorrhizal versus mycorrhizal plants

Engineering Mycorrhizal Symbioses to Alter Plant Metabolism and Improve Crop Health

An Insight into Phytoremediation of Heavy Metals from Soil Assisted by Ancient Fungi from Glomeromycota-Arbuscular Mycorrhizal Fungi

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