Application of Endophyte Microbes for Production of Secondary Metabolites

Mousavi, Seyyed Sasan; Karami, Akbar

doi:10.1007/978-981-16-2225-0_1

Cited by 9 publications

(3 citation statements)

References 247 publications

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“…In contrast, methyl stearate levels decreased in the roots under severe drought conditions. These variations in the profile of FAs in mycorrhized roots have led to a higher unsaturation index that reportedly reduced oxidative damage 57 . This causes better resistance under harsh stressed conditions.…”

Section: Discussionmentioning

confidence: 99%

Adaptation of Glycyrrhiza glabra L. to water deficiency based on carbohydrate and fatty acid quantity and quality

Haghighi

Saharkhiz

Kavoosi

et al. 2023

Sci Rep

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Water deficit affects agricultural systems negatively globally. This research objective was to mitigate drought’s detrimental effects on plants metabolite profiling by utilizing biofertilizers and mineral nutrition. The carbohydrate content and fatty acid profile of Licorice (Glycyrrhiza glabra) were assessed under Silicon (Si) nutrition, Claroiedoglomus etunicatum inoculation (F), and drought stress (100, 80, 60, 40, and 20% of field capacity (FC)). Results showed that Si application increased total sugar content under severe drought levels (20 and 40% FC) and made it reach 12.41 and 12.63 g/100 g DW, respectively. Sucrose, as the predominant sugar of licorice, was at its highest level (13.1 g/100 g DW) in response to integrated values of F and Si (60% FC). Gas chromatography–mass spectrometry showed that the majority of fatty acid components in plants were 9-Octadecenoic acid (8.72–71.27%), 9,12-Octadecadienoic acid (0.1–56.43%), Hexadecanoic acid (12.84–30.59%), Octadecanoic acid (6.9–15.3%), Docosanoic acid (0.57–2.77%), Eicosanoic acid (1.07–2.64%), and 7-Hexadecenoic acid (0.26–2.62%). Since a lower omega6/omega3 ratio represents a healthier product, the lowest ratio (0.25%) was observed in well-watered inoculated plants. Also, severe drought-treated plants under integrated Si and F applications showed a low omega6/omega3 ratio (1.88%). In conclusion, Si and F improved synergistically the carbohydrate content and fatty acid profile in plants, despite the drought stress.

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Section: Discussionmentioning

confidence: 99%

Adaptation of Glycyrrhiza glabra L. to water deficiency based on carbohydrate and fatty acid quantity and quality

Haghighi

Saharkhiz

Kavoosi

et al. 2023

Sci Rep

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“…Flavonoids from legumes have reportedly helped the growth of vesiculararbuscular mycorrhizal fungi and promoted the transcription of nodulation genes in symbiotic relationships (73,74). Other studies also found that colonized root cells underwent a variety of cytological and metabolic changes, including changes in the regulation of plastid biosynthetic pathways and the Krebs cycle, as well as increases in the production of avonoids, quercetin, isoprenoids, polyketides, and polyphenols (75). As stated in the current study, trans ferulic acid increased under drought stress, whereas quercetin decreased.…”

Section: Discussionmentioning

confidence: 99%

Mycorrhiza and Silicon Influence Glycyrrhiza glabra L. under Water-deficit; Antioxidant Activity, Medicinal Metabolites and Mineralogical Analysis

Haghighi

Saharkhiz

Zareị

2022

Preprint

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Background:Exogenous application of silicon (Si) and arbuscular mycorrhizal fungi (AMF) can help plants cope with drought stress. An experiment was designed with two Si solute levels in irrigation water (i.e. 0 (Si0) and 300 mg/L (Si1)), two levels of AMF inoculation (i.e. inoculation with Claroiedoglomus etunicatum (F1) and without inoculation (F0)), and five soil moisture regimes (i.e. 100, 80, 60, 40 and 20% of field capacity (FC). After two months, the licorice roots were harvested and analyzed.ResultsUnder water deficit conditions, there were significant decreases in root length and dry weight (DW) (p < 0.05), compared to the control. Si and AMF could significantly (p < 0.05) enhanced root area (47.75-150.64 cm2) under all irrigation levels. The maximum glycyrrhizic acid (26.62 mg/g DW) was achieved by the interaction between Si and AMF in response to 40% FC. A reduction in total flavonoids and phenolics of licorice was observed under severe drought levels; however, the Si and AMF acted to increase sinapic acid (16.46 mg/g DW), and trans ferulic acid (1.11 mg/g DW) in roots. The results indicated that the interaction between Si and AMF positively affected nitrogen and phosphorous concentrations in roots (53.51 and 74.07%, respectively). Also, there was an increase in potassium concentration in response to 100, 80, and 40% FC among Si-treated plants (38.5–44.7%).ConclusionIn conclusion, the exogenous application of Si and AMF showed a synergistic impact on the ability to mitigate the adverse effects of drought stress by improving plant growth and enhancing metabolite accumulation in licorice.

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“…Oxidation, reduction, rearrangement (via hydride shifts and additional ring closures), conjugation, double bond isomerization, and hydration result in a high diversity of monoterpene structures [58,59]. The monoterpene accumulation correlated with an increase in the transcript abundance of early terpenoid pathway enzymes [60]. A study on EO of Rosa damascena Mill showed that with the increase in storage duration, citronellol and nerol content increased at 4 °C, 18 ± 1 °C, and 25 ± 1 °C, whereas the geraniol content decreased as the storage duration increased.…”

Section: Food Science and Engineering Volume 3 Issue 2|2022| 161mentioning

confidence: 99%

A Compositional Perspective of Sour Orange (Citrus aurantium L.) Flowers Essential Oil under Different Storage Conditions

Mohagheghniapour

Saharkhiz²,

Haghighi³

2022

Food Science and Engineering

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Sour orange (Citrus aurantium L.) is a tree with medicinal properties. This study assessed the impact of various storage conditions and times on the Essential Oil (EO) content of sour orange blossoms. The changes in the EO composition were recorded at the beginning of extraction and during three, six, and nine months of storage at the temperature of 4 °C (refrigerator), -20 °C (freezer), and 25 °C (room temperature) under conditions of light and darkness. According to the Gas Chromatography (GC, FID detector) and Gas Chromatography-Mass Spectrometry (GC-MS, FID detector) results, 35 compounds were identified. Linalool acetate (14.56-31.4%), linalool (18.9-23.1%), limonene (7.51-15.3%), farnesol (2.1-9%), nerolidol (6.1-8.9%), β-pinene (5.7-8.7%), trans-β-ocimene (0-7.9%), and geranyl acetate (4.2-5.7%) constituted the major EO components in different storage treatments. After nine months, linalool acetate climbed by more than twice as much. Overall, the principal EO compositions are significantly impacted by the storage circumstances. Such knowledge is essential for the food and pharmaceutical industries to use EO effectively in their intended products.

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Application of Endophyte Microbes for Production of Secondary Metabolites

Cited by 9 publications

References 247 publications

Adaptation of Glycyrrhiza glabra L. to water deficiency based on carbohydrate and fatty acid quantity and quality

Adaptation of Glycyrrhiza glabra L. to water deficiency based on carbohydrate and fatty acid quantity and quality

Mycorrhiza and Silicon Influence Glycyrrhiza glabra L. under Water-deficit; Antioxidant Activity, Medicinal Metabolites and Mineralogical Analysis

A Compositional Perspective of Sour Orange (Citrus aurantium L.) Flowers Essential Oil under Different Storage Conditions

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