The role of arbuscular mycorrhizas in reducing soil nutrient loss

Cavagnaro, Timothy R.; Bender, Sophia; Asghari, Hamid Reza; Heijden, Marcel G. A. van der

doi:10.1016/j.tplants.2015.03.004

Cited by 253 publications

(130 citation statements)

References 69 publications

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“…As pointed out by Rozpadek et al, (2016), arbuscule formation and colonization intensity differences often do not appear into phenotypic characteristics. At the same time Cavagnaro et al, (2015) stresses the importance of mycorrhiza fungi hyphae to limit mineral loss from the soil. This can explain the positive effect of mycorrhiza on plant growth.…”

Section: Resultsmentioning

confidence: 99%

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Inoculated broad beans (Vicia faba) as a precrop for spring onions (Allium cepa)

Dubova¹,

Šenberga²,

Alsiņa³

2017

Research for Rural Development

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The agronomic role of legumes in cropping systems is well understood with the respect to N 2 fixation, mechanisms of precrop effects, and environmental impacts. The combined inoculation and tripartite symbiosis between leguminous plants, Rhizobium spp. and vesicular-arbuscular mycorrhizal fungi has been the subject of intensive research. Less attention has been paid to their effects on subsequent crops. Pot experiments were carried out in the greenhouse of Latvia University of Agriculture in 2015 and 2016. Soil used for this experiment was taken from the previous trial, where broad beans (Vicia faba var. major Harz.) were grown. Bean seeds, depending on the variant, were inoculated with rhizobia bacteria or mycorrhiza fungi, or the mixture of both microorganisms. Onions were grown as a subsequent crop. During the experiment, fresh and dry weight of onion leaves was determined. Onion root mycorrhizal colonization frequency and arbuscule abundance in the onion root system were determined. The activity of soil microorganisms was determined by soil respiration intensity. Results showed that the use of microsymbionts increased the subsequent onion leaf harvest in 2014 by 2.3% and in 2015 by 9.5%. In 2015 the highest increase of onion leaf yield was detected in variants were rhizobia strain RP023 was used. Rhizobia strain RV407 gave a positive effect only in combination with mycorrhiza fungi. Precrop treatment with mineral nitrogen fertilizer increased the onion yield in both years -by 12.4 and 14.3%, respectively. In all treatments, a decrease in dry matter content was observed. The highest incidence of mycorrhiza fungi structures was detected under mycorrhiza treatment. Tripartite symbiosis promoted the soil respiration rate.

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Section: Resultsmentioning

confidence: 99%

“…As pointed out by Cavagnaro et al (2015), it could be explained by the enhanced precrop supply with water and mineral nutrition double precrop inoculation was used. Cavagnaro et al, (2015) results show that AMF hyphae can promote the formation of soil macro-aggregates and reduce soil organic matter decomposition which affects growth conditions.…”

Section: Resultsmentioning

confidence: 99%

Inoculated broad beans (Vicia faba) as a precrop for spring onions (Allium cepa)

Dubova¹,

Šenberga²,

Alsiņa³

2017

Research for Rural Development

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“…Chez les plantes associées aux champignons arbusculaires, ces derniers étendent leur réseau d'hyphes au-delà de la zone d'absorption racinaire favorisant l'exploration d'un plus grand volume de sol que le système racinaire seul (Mohammadi et al, 2011 ;Cavagnaro et al,2015). Ce qui pourrait favoriser l'absorption de divers nutriments comme P, Zn, N, Cu et K (Cavagnaro, 2008 ;Finlay, 2008 ;Bielders et al, 2010 ;Lehmann et al, 2014).…”

Section: Influence Sur La Mycorhizationunclassified

Le champignon arbusculaire <i>Glomus aggregatum</i> améliore la nutrition minérale de <i>Acacia seyal</i> soumis au stress salin progressif

Manga¹,

Ndiaye²,

Diop³

2018

Int. J. Bio. Chem. Sci

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.sn; Tel. +221 30 100 42 21 RESUME La salinité demeure un problème majeur pour la fertilité des sols en particulier dans la zone sahélienne. Cependant, de nombreuses études ont prouvé l'efficacité des champignons mycorhiziens arbusculaires à promouvoir la croissance des végétaux soumis au stress salin. Une expérience a été menée en serre pendant 36 semaines avec pour objectif d'étudier le comportement de jeunes plants d'Acacia seyal associés ou non au champignon mycorhizien Glomus aggregatum en condition de stress salin. Les mesures de la hauteur des tiges, des poids de matière sèche des parties aériennes et racinaires, des teneurs en N, P, K et du taux de mycorhization ont permis de déterminer les effets de l'association mycorhizienne chez les plants testés. Cette étude a montré la capacité pour Acacia seyal à former des associations symbiotiques avec G. aggregatum malgré l'application du stress salin. Il a été noté chez les plants mycorhizés une amélioration de la tolérance au stress salin se traduisant par une biomasse sèche et des teneurs en N, P et K significativement plus élevées que chez les plants non mycorhizés. Cette étude offre des perspectives intéressantes pour l'inoculation des plants en pépinière par des champignons performants dans les programmes de reboisement des zones menacées par la salinité. © 2017 International Formulae Group. All rights reserved. Mots clés : Acacia seyal, Glomus aggregatum, salinité, champignons arbusculaires.The fungus Glomus aggregatum improves the mineral nutrition of Acacia seyal subjected to progressive saline stress ABSTRACT Salinity remains a major problem for soil fertility, especially in the Sahelian zone. However, many studies have shown the efficiency of arbuscular mycorrhizal fungi to promote plant growth subjected to salt stress. An experiment was carried out in a greenhouse for 36 weeks to study the behavior of Acacia seyal seedlings associated with Glomus aggregatum under salt stress conditions. The effects of mycorrhizal association in the tested seedlings were determined by measurements of shoot height, shoot and root dry weight, N, P, K, content and mycorrhization rate. This study showed the ability for Acacia seyal to form symbiotic associations with G. aggregatum despite the application of salt stress. In mycorrhized plants, it was A. MANGA et al. / Int. J. Biol. Chem. Sci. 11(5): 2352-2365, 2017 2353 noted an improvement in salt stress tolerance resulting in significantly higher dry biomass and N, P, K content than in non-mycorrhized plants. This study offers interesting prospects for the inoculation of nursery seedlings by high-performance fungi in reforestation programs for areas threatened by salinity.

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“…Plants rely on AMF for the capture and transfer of soil nutrients through processes of weathering, dissolution and cycling of mineral nutrients and from mobilization of nutrients from organic substances [97]. Up to 90% of plant P and 20% of plant N can be provided by AMF [98]. However, if the soil-N or soil-P availability rises, plants will allocate less carbon to mycorrhizae as they are less reliant on the fungi for their nutrient acquisition, and mycorrhizal abundance will decline [10,99].…”

Section: Nutrient Cyclingmentioning

confidence: 99%

“…The inorganic phosphate that is available is rapidly absorbed by plant roots, resulting in a 'phosphorus depletion zone' surrounding the root. AMF can bypass this zone by proliferating in soil which plant roots are unable to reach -a mechanism, which is particularly important in P-limited soils [10,16,98,104]. Conversely, in conditions where plants are not phosphorus-stressed, colonization and growth of mycorrhizal fungi decreases as the AMF association becomes less beneficial to the plant [105].…”

Section: Nutrient Cyclingmentioning

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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The role of arbuscular mycorrhizas in reducing soil nutrient loss

Cited by 253 publications

References 69 publications

Inoculated broad beans (Vicia faba) as a precrop for spring onions (Allium cepa)

Inoculated broad beans (Vicia faba) as a precrop for spring onions (Allium cepa)

Le champignon arbusculaire <i>Glomus aggregatum</i> améliore la nutrition minérale de <i>Acacia seyal</i> soumis au stress salin progressif

Arbuscular mycorrhizal associations in plant nutrition and health.

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