The arbuscular mycorrhizal fungus Rhizophagus irregularis affects arthropod colonization on sweet pepper in both the field and greenhouse

Balog, Adalbert; Loxdale, Hugh D.; Bálint, János; Benedek, Klára; Szabó, Károly-Attila; Jánosi-Rancz, Katalin-Tünde; Domokos, Erzsébet

doi:10.1007/s10340-017-0844-1

Cited by 19 publications

(14 citation statements)

References 33 publications

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“…Furthermore, the evidence for an anti-herbivore role of POD derives from the discovery that the herbivore defence-inducing signal molecules systemin and methyl jasmonate (MeJA) induce POD activity levels in tomato leaves (Constabel et al 1995;Constabel and Barbehenn 2008;Mai et al 2016). Hence, the increased POD level indicating an intensive feeding process, especially from the aphid nymphs that injure plant cells, is consistent with high aphid preferences toward these particular plants (Dicke 1998;Argandoña et al 2001b;Balog et al 2017). Other studies have reported that other plant species, i.e.…”

Section: Discussionsupporting

confidence: 52%

Low and high input agricultural fields have different effects on pest aphid abundance via different invasive alien weed species

Kiss¹,

Bálint²,

Kőszeghi³

et al. 2019

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We conducted field surveys to detect the population density of the most important invasive weed species and their associated virus vectoring aphids in crops grown under high input field (HIF) vs low-input field (LIF) conditions, with and without fertilizers and pesticides. The most frequent invasive weed species were Stenactisannua, Erigeroncanadensis and Solidagocanadensis. These species were hosts predominantly for the aphids Brachycaudushelichrysi and Aulacorthumsolani in both management systems. The 13% higher coverage of S.annua under LIF conditions resulted in a 30% higher B.helichrysi abundance and ~85% higher A.solani abundance compared with HIF conditions. Host plant quality was assessed by measuring peroxidase enzyme activity. There was a significantly increased POD activity at 10 μmol min−1 mg protein−1 unit in S.annua under LIF conditions, suggesting a higher stress by aphids under this management regime. The high colonization intensity of B.helichrysi on maize, potato and alfalfa crops were detected from both S.annua and E.canadensis. We conclude that new and faster methods need to be used to prevent colonization of such virus vectoring aphids and their host plants, even under low input regimes.

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Section: Discussionsupporting

confidence: 52%

Low and high input agricultural fields have different effects on pest aphid abundance via different invasive alien weed species

Kiss¹,

Bálint²,

Kőszeghi³

et al. 2019

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“…In field conditions, cultivated legumes encounter a diverse local rhizobacteria (Rhizobia and free-living PGPR) and AMF community in the soil, including microorganisms from inoculants applied [ 30 , 35 , 57 ]. Further, both introduced inoculants and indigenous microbial community can influence host plant [ 36 , 58 ], and this can temper the dramatic effects otherwise seen in non-field conditions. In our study, the presence and diversity of indigenous AMF explains root colonization observed in the non-inoculated control plots ( Table 2 ).…”

Section: Discussionmentioning

confidence: 99%

“…Most studies to date have been undertaken under controlled conditions in the laboratory or green-house [ 27 , 28 , 33 ], and by using methods to eliminate indigenous microorganisms from experimental fields [ 34 , 35 ]. Also, microorganism-plant-insect interactions impact not just the herbivores, but also higher trophic levels such as their natural enemies [ 36 , 37 ].…”

Section: Introductionmentioning

confidence: 99%

The effects of mycorrhizal colonization on phytophagous insects and their natural enemies in soybean fields

et al. 2021

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The use of belowground microorganisms in agriculture, with the aim to stimulate plant growth and improve crop yields, has recently gained interest. However, few studies have examined the effects of microorganism inoculation on higher trophic levels in natural conditions. We examined how the diversity of phytophagous insects and their natural enemies responded to the field-inoculation of soybean with a model arbuscular mycorrhizal fungus (AMF), Rhizophagus irregularis, combined with a nitrogen-fixing bacterium, Bradyrhizobium japonicum, and a plant growth-promoting bacterium, Bacillus pumilus. We also investigate if the absence or presence of potassium fertilizer can affect this interaction. We found an increase in the abundance of piercing-sucking insects with the triple inoculant irrespective of potassium treatment, whereas there were no differences among treatments for other insect groups. A decrease in the abundance of the soybean aphid, Aphis glycines, with the double inoculant Rhizophagus + Bradyrhizobium was observed in potassium enriched plots and in the abundance of Empoasca spp. with potassium treatment independent of inoculation type. Although it was not possible to discriminate the mycorrhization realized by inoculum from that of the indigenous AMF in the field, we confirmed global negative effects of overall mycorrhizal colonization on the abundance of phytophagous piercing-sucking insects, phytophagous chewing insects, and the alpha diversity of phytophagous insects. In perspective, the use of AMF/Rhizobacteria inoculants in the field should focus on the identity and performance of strains to better understand their impact on insects.

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“…The fruits of inoculated and irrigated plants were of the highest quality, as well as the fruits of inoculated and irrigated ones. The effects of AMF on sweet pepper plants are different and dependent on several factors (environmental and biotic) [40]. The development of fungal colonization in the host plant includes changes in morphology and gene expression as well as introduces compounds similar to plant hormones that help in plant growth and development [22].…”

Section: Discussionmentioning

confidence: 99%

Do AMF and Irrigation Regimes Affect Sweet Pepper Fruit Quality under Open Field Conditions?

2021

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The aim of this study was to determine the effect of a mycorrhizal inoculation (AMF) and irrigation regime on certain yield morphological parameters and the biological value of fruits of open field-grown sweet pepper under temperate climate conditions. A study on the Polish hybrid cultivar ‘Roberta F1’ was conducted over the period 2016–2018 in a private certified organic farm. Sweet pepper was harvested at physiological maturity from the second 10 days of August to the first 10 days of October. AMF and irrigation were shown to significantly modify the selected morphological parameters of the peppers. Fruits with the highest weight, length, and width were harvested from AMF-inoculated plants, both irrigated and non-irrigated ones. The chemical composition and antioxidant activity (AA) of pepper fruit extracts were significantly affected by AMF and irrigation. AMF application contributed to a decrease in the percentage of dry matter, vitamin C, reducing sugars, extract, carotenoids, and AA. Irrigation, on the other hand, had a beneficial effect on enhancing the biological value of pepper fruits (except for vitamin C), also increasing their AA. The highest levels of carotenoids (4.64 mg 100 g−1 of fresh matter (FM) were found in the fruits of irrigated plants without AMF, whereas the highest levels of vitamin C (134.10 mg 100 g−1 FM) were accumulated by the fruits of plants grown without AMF and without irrigation.

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The arbuscular mycorrhizal fungus Rhizophagus irregularis affects arthropod colonization on sweet pepper in both the field and greenhouse

Cited by 19 publications

References 33 publications

Low and high input agricultural fields have different effects on pest aphid abundance via different invasive alien weed species

Low and high input agricultural fields have different effects on pest aphid abundance via different invasive alien weed species

The effects of mycorrhizal colonization on phytophagous insects and their natural enemies in soybean fields

Do AMF and Irrigation Regimes Affect Sweet Pepper Fruit Quality under Open Field Conditions?

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