How Root Structure Defines the Arbuscular Mycorrhizal Symbiosis and What We Can Learn from It?

Dreyer, Beatriz; Honrubia, M.; Morte, Asunción

doi:10.1007/978-3-642-54276-3_7

Cited by 11 publications

(7 citation statements)

References 93 publications

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“…Beneficial effect of AMF on root biomass production was already described for potato (Davies et al, 2005;Thiem et al, 2014) as well as for the other plant species (Saia et al, 2015;Chen M. et al, 2017;Jacott et al, 2017;Shao et al, 2018). We cannot exclude that enhanced biomass (but not the length) of root system could be associated with some structural changes that are known to be induced by AMF (e.g., enlargement of root cortex due to an extra cell layer development for accommodation of fungal structures) (Dreyer et al, 2014). However, it is even more probable that improved nutritional status of R. irregularisinoculated potato cv.…”

Section: Discussionmentioning

confidence: 96%

Arbuscular Mycorrhiza Changes the Impact of Potato Virus Y on Growth and Stress Tolerance of Solanum tuberosum L. in vitro

et al. 2020

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Under the field conditions crop plants interact with diverse microorganisms. These include beneficial (symbiotic) and phytopathogenic microorganisms, which jointly affect growth and productivity of the plants. In last decades, production of potato (Solanum tuberosum L.) suffers from increased incidence of potato virus Y (PVY), which is one of most important potato pests. Arbuscular mycorrhizal fungi (AMF) are common symbionts of potato, however the impact of mycorrhizal symbiosis on the progression of PVY-induced disease is scarcely known. Therefore, in the present study we investigated the effect of joint PVY infection and mycorrhizal colonization by Rhizophagus irregularis on growth traits of the host potato plant (cv. Pirol). The tested PVY isolate belonged to N-Wilga strain group, which is considered to be predominant in Europe and many other parts of the world. The viral particles were concentrated in the leaves, but decreased the root growth. Furthermore, the infection with PVY evoked prolonged oxidative stress reflected by increased level of endogenous H 2 O 2. AMF alleviated oxidative stress in PVY-infected host plants by a substantial decrease in the level of shoot-and rootderived H 2 O 2 , but still caused asymptomatic growth depression. It was assumed that mycorrhizal symbiosis of potato might mask infection by PVY in field observations.

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Section: Discussionmentioning

confidence: 96%

Arbuscular Mycorrhiza Changes the Impact of Potato Virus Y on Growth and Stress Tolerance of Solanum tuberosum L. in vitro

et al. 2020

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“…Larger root diameter and lower specific root length also are common features of mycorrhizal plants. This results from enlargement of the root cortex with extra cell layers to accommodate the fungal structures (Fusconi et al ., 1999; Dreyer et al ., 2014) with lower biomass investment in root development in mycorrhizal plants (Marschner & Dell, 1994). Although mycorrhizal fungi found in many crop plants do not act as saprotrophs, they can access nutrients bound in SOM, and thereby promote its decomposition, through several strategies, mainly direct enzymatic breakdown, oxidation mechanisms and stimulation of heterotrophic microbes through provision of plant‐derived C to the rhizosphere (Frey, 2019).…”

Section: Discussionmentioning

confidence: 99%

Genotypic variation in maize (Zea mays) influences rates of soil organic matter mineralization and gross nitrification

Mwafulirwa

Paterson

Cairns³

et al. 2021

New Phytologist

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“…They enlarge the contact surface and increase the storage capacity of water and nutrients by the presence of millions of small vesicules and arbuscules [12]. AMF can also cause multiple changes in root morphology, like increasing the number of adventitious and lateral roots, and their colonization usually results in greater branching [13]. In addition, mycorrhization of plants with AMF can cause a significant mobilization of insoluble phosphorus in the soil and uptake by plants [14].…”

Section: Introductionmentioning

confidence: 99%

Effect of Arbuscular Mycorrhizal Fungi on Pratylenchus penetrans Infestation in Apple Seedlings under Greenhouse Conditions

Ceustermans¹,

Hemelrijck²,

Campenhout³

et al. 2018

Pathogens

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A major problem in fruit cultivation in Flanders is replant disease due to a lack of uncultivated soils available for new plantings. Replant disease can cause poor growth and affect time to full production, however Arbuscular Mycorrhizal Fungi (AMF) can prove their usefulness with regard to these problems. To further investigate the effect of AMF on nematodes, different AMF species were amended to potted apple seedlings in the presence of the nematode Pratylenchus penetrans. Generally, apple seedlings grew better in the presence of nematodes when mycorrhiza were inoculated into the soil. Moreover, a positive correlation (R2 ≥ 0.88) was found between the percentage root length colonization of the roots of apple seedlings, by AMF species, and nematode reduction in the soil of the seedlings. Indigenous AMF could colonize the roots of apple seedlings the most efficiently, resulting in a higher biocontrol effect. Besides, a synergistic effect was observed when two AMF strains were applied together leading to a significant growth response of the seedlings.

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How Root Structure Defines the Arbuscular Mycorrhizal Symbiosis and What We Can Learn from It?

Cited by 11 publications

References 93 publications

Arbuscular Mycorrhiza Changes the Impact of Potato Virus Y on Growth and Stress Tolerance of Solanum tuberosum L. in vitro

Arbuscular Mycorrhiza Changes the Impact of Potato Virus Y on Growth and Stress Tolerance of Solanum tuberosum L. in vitro

Genotypic variation in maize (Zea mays) influences rates of soil organic matter mineralization and gross nitrification

Effect of Arbuscular Mycorrhizal Fungi on Pratylenchus penetrans Infestation in Apple Seedlings under Greenhouse Conditions

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