Priming Plant Defence Against Pathogens by Arbuscular Mycorrhizal Fungi

Pozo, Marı́a J.; Verhage, A.; García-Andrade, Javier; García, Juan Manuel Vicent; Azcón‐Aguilar, Concepción

doi:10.1007/978-3-540-87978-7_9

Cited by 89 publications

(71 citation statements)

References 57 publications

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“…During mycorrhiza establishment, modulation of plant defence responses occurs upon recognition of the AMF in order to achieve a functional symbiosis. As a consequence of this modulation, a mild, but effective activation of the plant immune responses may occur, not only locally but also systemically [Pozo et al 2009].…”

mentioning

confidence: 99%

Interactions of Arbuscular Mycorrhizal Fungi With Plants and Soil Microflora

Jamiołkowska¹,

Ksiezniak²,

Hetman³

et al. 2017

Acta Sci. Pol. Hortorum Cultus

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Mycorrhizal symbiosis is known since the 19th century and has been described as the coexistence of fungus with the roots of vascular plants. Root colonization by endomycorrhizal fungi causes changes in the quantity and quality of exudates produced by roots. The mycorrhiza may also affect plants' health status, their competitiveness and succession in eco-systems, and the formation of soil aggregates. The presence of a symbiont in the roots of plants causes a direct and indirect effect on rhizosphere microorganisms, fixing free nitrogen and transforming compounds constituting nutrient substrates for plants. The physiological and morphological relations of AMF with the plant promote its vitality and competitiveness by increasing resistance to abiotic and biotic stresses. Effective activation of the plant immune responses may occur, not only locally but also systemically. Mycorrhizal fungi, through the change of the composition and amount of root exudates, have influence on the development and activity of the communities of soil microorganisms. Certain soil bio-controlling microorganisms frequently showing synergism of the protective effect on plants together with AMF. In some cases, however, no positive interaction of selected microorganisms and endomycorrhizal fungi is observed. Double inoculation with the some species of bacteria and the mycorrhizal fungus can cause a decrease in the yielding the plants. Mycoparasitism of AMF spores and hyphae is also encountered in interaction between saprophytic fungi and AMF. This phenomenon is based on the lytic abilities of some fungi species which can lower the level of colonization and the effectiveness of mycorrhizal symbiosis with plants. Good knowledge of plant symbiosis with endomycorrhizal fungi and activity of these fungi in soils is necessary for their use in plant production.

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mentioning

confidence: 99%

Interactions of Arbuscular Mycorrhizal Fungi With Plants and Soil Microflora

Jamiołkowska¹,

Ksiezniak²,

Hetman³

et al. 2017

Acta Sci. Pol. Hortorum Cultus

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“…Above-ground ecosystems have tended to be considered separate from below-ground ecosystems [172], however there has been recent increased interest in the interaction between soil organisms and above-ground organisms. There is evidence to suggest that fungi may trigger an indirect plant defence response against herbivores, and vice versa [173][174][175][176] since plant defence response to insect predation is not limited to the roots and can result in accumulation of anti-feedant compounds in shoots [126,127] and up-regulation of genes associated with plant defence [177,178]. However, AMF is not entirely selfless in its mechanisms of protection: removal of aboveground biomass by herbivores can suppress AMF by altering the plant carbon allocation due to preferential allocation of carbon to other plant parts rather than plant roots [179].…”

Section: Protection Against Soil and Above-ground Organismsmentioning

confidence: 99%

“…For example, a meta-analysis of insect herbivores found that chewing insects and leaf miners were not significantly affected by mycorrhizal colonization, whereas mycorrhizae positively affected sucking insects and negatively affected gall-forming insects [180]. Pozo et al [177] suggested that generalist insects are more strongly affected by plant defence responses than specialists, which can evade these mechanisms. When there is a positive outcome, effects have been linked to improved plant palatability, whereas negative effects are associated with reduced palatability or plant defence responses [181].…”

Section: Protection Against Soil and Above-ground Organismsmentioning

confidence: 99%

Arbuscular mycorrhizal associations in plant nutrition and health.

Rintoul¹

2016

CABI Reviews

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Plants and arbuscular mycorrhizal fungi have co-evolved over a period of at least 450 million years. This fungal-plant association involves the transfer of carbon to the obligate biotropic fungus, in return for a wide range of beneficial functions. Although this is usually a mutualistic relationship, it can become parasitic to the plant under adverse conditions. Here, the research examining mechanisms by which mycorrhizal associations improve plant fitness is reviewed. Although there is strong evidence that a number of beneficial functions are performed by mycorrhizae, the mechanisms behind these are often not clear. There are numerous factors which influence these mechanisms and their outcomes, one or more of which can be affecting the association simultaneously. The knowledge we have on arbusular mycorrhizal associations with plants could be applied to various land management practices in order to improve soil degradation brought about by anthropogenic activities. These include erosion, drought, nutrient stress and salinization, and are often a result of poor land management. In order to use mycorrhizal fungi as a biomanagement tool, more research is required, particularly in mature field communities over long timescales. There is a need to invest in the development of sustainable agroecological management methods and to design future policy and legislation that encourages large organizations to incorporate more sustainable practices whilst protecting small-scale farmers.

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“…Moreover, Pozo et al (2008) showed that root colonization by arbuscular fungi (AMF) can improve plant resistance / tolerance to biotic stresses and increase defense mechanism.…”

Section: -The Effect Of Different Tested Bio-fertilizers and Fertilizamentioning

confidence: 99%

Efficiency of Certain Arbuscular Mycorrhizal Fungi and Rhizosphere Bacterium Treatments on the Incidence of Corn Stem Borers Infestation

2012

Alexandria Science Exchange Journal: An International Quarterly

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Priming Plant Defence Against Pathogens by Arbuscular Mycorrhizal Fungi

Cited by 89 publications

References 57 publications

Interactions of Arbuscular Mycorrhizal Fungi With Plants and Soil Microflora

Interactions of Arbuscular Mycorrhizal Fungi With Plants and Soil Microflora

Arbuscular mycorrhizal associations in plant nutrition and health.

Efficiency of Certain Arbuscular Mycorrhizal Fungi and Rhizosphere Bacterium Treatments on the Incidence of Corn Stem Borers Infestation

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