Effect of Trichoderma asperellum applications and mineral fertilization on growth promotion and the content of phenolic compounds and flavonoids in onions

Ortega-García, José Gilberto; Montes‐Belmont, Roberto; Rodrı́guez-Monroy, Mario; Ramírez-Trujillo, José Augusto; Suárez-Rodríguez, Ramón; Sepúlveda-Jiménez, Gabriela

doi:10.1016/j.scienta.2015.08.027

Cited by 42 publications

(38 citation statements)

References 33 publications

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“…Treatment with Trichoderma strains, especially with those selected for their plant defence-triggering effects, was demonstrated to increase the polyphenolic content of various plants-grape [35], artichoke [36], and tomatoes [20]. Flavonoids and polyphenols were shown to increase the edible parts of onions [37] and cucumbers [38] after treatment with Trichoderma strains.…”

Section: Introductionmentioning

confidence: 98%

Effects of Foliar Treatment with a Trichoderma Plant Biostimulant Consortium on Passiflora caerulea L. Yield and Quality

et al. 2020

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The influence of spore concentration on the ability of a Trichoderma consortium to colonize the Passiflora caerulea phyllosphere was evaluated by determining the effects of foliar treatments with two spore concentrations, in two repeated treatments, on the morphological, physiological, and ultrastructural characteristics, and on the yield and quality of P. caerulea. The studied crop quality features were related to its nutraceutical use: the accumulation of polyphenols and flavonoids, antioxidant activity, and effects on mouse fibroblast L929 cells. The Trichoderma consortium consisted of two strains, T. asperellum T36b and T. harzianum Td50b, and the concentrations used were 106 colony forming units (cfu)/mL and 108 cfu/mL. As a reference treatment, a commercial product that was based on herbs and algal extracts was used. As compared to the negative control, the treatment with the Trichoderma consortium at 108 cfu/mL concentration determines the accumulation of higher level of polyphenols and flavonoids and increased antioxidant activity. This enhancement of P. caerulea quality characteristics after treatment with the higher concentration of Trichoderma consortium was associated with larger leaves, increased number and size of chloroplasts, improved plant physiology characteristics, and an increased yield. The treatment with high concentration of Trichoderma consortium spores promotes phyllosphere colonization and benefits both crop yield and quality.

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Section: Introductionmentioning

confidence: 98%

Effects of Foliar Treatment with a Trichoderma Plant Biostimulant Consortium on Passiflora caerulea L. Yield and Quality

et al. 2020

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“…Many studies have been published about promising applications of Trichoderma spp. in industry and agriculture due to their ability to produce enzymes and antibiotics, promote plant growth, induce plant resistance (Gajera et al 2015 ; Mukherjee et al 2013 ; Ortega-García et al 2015 ; Vitti et al 2016 ), and enhance the efficiency of nutrient use (Kashyap et al 2017 ). In particular, Trichoderma strains are significant biocontrol agents against plant fungal pathogens(Bae et al 2016 ; El-Hassan et al 2013 ; Harman et al 2004 ; Zhang et al 2015a , b ).…”

Section: Introductionmentioning

confidence: 99%

Biodiversity of Trichoderma from grassland and forest ecosystems in Northern Xinjiang, China

Tsegaye

et al. 2020

3 Biotech

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Trichoderma spp., a cosmopolitan fungal genus, has remarkable economic value in industry and agriculture. The resources of Trichoderma spp. in the grassland and forest ecosystems of northern Xinjiang were explored in this study. A total of 634 soil samples was collected, and 312 strains assigned to 23 species of Trichoderma spp. were identified. T. harzianum was the dominant species with 28.2% from all isolates. The principal components analysis indicated that ecosystem was the most dominant impact factor among longitude, latitude, altitude and ecosystems for the species diversities of Trichoderma spp. with the decreasing trend from the north to the south of northern Xinjiang (e.g., from Altay, followed by Yili, Changji, Bayingolin and finally Urumqi). Overall, Trichoderma spp. were more frequently encountered in forest ecosystems (coniferous forest and coniferous and broadleaf mixed forest) than in grassland ecosystems (desert steppe and temperate steppe). Frequency of Trichoderma spp. was significantly decreased along with increased altitude and only a few strains were isolated from altitudes above 3000 m. The results provided essential information on Trichoderma occurrence and distribution, which should benefit the application of Trichoderma in agriculture. Electronic supplementary material The online version of this article (10.1007/s13205-020-02301-6) contains supplementary material, which is available to authorized users.

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“…The phenolic content of onion bulbs has been shown to be affected by the growing conditions such as soil type, dose of fertilizers, presence of Trichoderma spp. in the root zones (Ortega-Garcia et al 2015). We also found that the outer layers of red and violet Table 3 Trolox equivalent antioxidant capacity (TEAC/100 g), total phenolic content (TPC) as mg/g gallic acid equivalent (GAE), and TBARS (as MDA mM/g) levels in different layers of Allium cepa cultivars expressed on dry weight basis varieties were richer in total phenolics, antioxidants and free radical scavenging activity than the innermost layers.…”

Section: Total Phenolics In Onionsmentioning

confidence: 56%

Onion (Allium cepa L.) is potentially a good source of important antioxidants

et al. 2019

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Six different cultivars of onions available in the Kuwaiti market were analyzed for various physic-chemical properties, such as, moisture content, sugar composition, TBARS as malondialdehyde, total phenolic content, as well as trolox equivalent antioxidant capacity, these cultivars comprised of US onions white, US onions yellow, Indian onions red, Egyptian onions red, New Zealand onions golden and Saudi onions white. Layers from each onion bulb were manually cut and separated into three nearly equal portions, i.e., outer layers, middle layers and the inner layers. The outermost layers of the bulb showed the highest concentration of antioxidant compounds and a distinct decreasing trend was observed towards the innermost layers in all types of onion samples. The onion samples studied showed variations in carbohydrate contents (glucose, fructose and sucrose), which would have important implications in affecting the flavor (sweetness and pungency) and the suitability of these onions for processing. An important observation is about the distribution of antioxidant compounds with the highest contents in the outmost layers of the onions than in their middle and inner layers. Unfortunately, these outer layers are generally discarded by the consumers thus depriving them of the important health-promoting phytochemicals.

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Effect of Trichoderma asperellum applications and mineral fertilization on growth promotion and the content of phenolic compounds and flavonoids in onions

Cited by 42 publications

References 33 publications

Effects of Foliar Treatment with a Trichoderma Plant Biostimulant Consortium on Passiflora caerulea L. Yield and Quality

Effects of Foliar Treatment with a Trichoderma Plant Biostimulant Consortium on Passiflora caerulea L. Yield and Quality

Biodiversity of Trichoderma from grassland and forest ecosystems in Northern Xinjiang, China

Onion (Allium cepa L.) is potentially a good source of important antioxidants

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