Flavonoids in Agriculture

Palma-Tenango, Mariana; Soto-Hernández, Marcos; Hernández, Eva Aguirre

doi:10.5772/intechopen.68626

Cited by 20 publications

(16 citation statements)

References 57 publications

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“…However, along with these signals, other flavonoid classes are also exuded from seeds or roots; these serve many known and probably unknown functions. Certain classes of flavonoids exuded from germinating seeds and roots were found to have phyto-inhibitory effects, inhibiting seedling growth in a dose-dependent manner, where some may be stimulatory (at lower concentrations) or inhibitory (at higher concentrations) depending on the flavonoid type and class [ 22 ]. Leucocyanidin, a member of the leucoanthocyanidins (a class of flavonoids), was reported to have no impact on seed germination of Brassica campestris and Lens esculenta , whereas significant improvement was observed in seedling growth with the greatest promotion of root growth [ 23 ].…”

Section: Discussionmentioning

confidence: 99%

Seed Priming with Devosia sp. Cell-Free Supernatant (CFS) and Citrus Bioflavonoids Enhance Canola and Soybean Seed Germination

2022

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Climate change, environmental pollution and associated abiotic stresses are beginning to meaningfully affect agricultural production worldwide. Salt stress is, however, one of the most important threats that significantly impairs plant growth and development. Plants in their early growth stages such as seed germination, seed emergence and early seedling growth are very sensitive to salt stress. Among the range of sustainable techniques adopted to improve seed germination and early plant growth is seed priming; however, with the use of ecofriendly substances, this is one of the most effective and economically viable techniques to improve seed tolerance against such environmental stresses. For instance, priming with appropriate non-synthetic compounds including microbial biostimulants are prominent ways to sustainably address these challenges. Therefore, in this research, by using the “priming technique”, two biostimulants were tested for their potential as sustainable approaches to improve canola and soybean seed germination under salt stress and optimal growth conditions. Canola and soybean seeds were primed with flavonoids extracted from citrus fruits (flavopriming) and cell-free supernatant (CFS; produced by a novel strain of Devosia sp.—SL43), alone and in combination, and exposed to low–higher levels of salt stress and ideal growth conditions. Both biostimulants showed promising effects by significantly improving seed germination of soybean and canola under both ideal and stressful conditions. However, increases in seed germination were greater under salinity stress as flavonoids and CFS with stress amelioration effects showed substantial and statistically significant improvements in seed germination under varying levels of salt stress. In addition, combinations (mixtures) of both biostimulants were tested to determine if their effects might be more additive or multiplicative than the individual applications. However, results suggested incompatibility of both biostimulants as none of the combinations showed better results than that of the individual applications of either flavonoids or CFS. Conceivably, the use of flavonoids and this novel Devosia sp. CFS could be significant plant growth enhancers, perhaps much better than the few other biostimulants and bacterial-based compounds currently in use.

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Section: Discussionmentioning

confidence: 99%

Seed Priming with Devosia sp. Cell-Free Supernatant (CFS) and Citrus Bioflavonoids Enhance Canola and Soybean Seed Germination

2022

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“…Flavonoids are ubiquitous in land plants. One of the most important flavonoids in plants is anthocyanin, which has been indicated to provide assistance to plants in tolerating extensive stress [44], such as cold [45,46], high light [47,48,49], weak light [49,50], oxidative stress [51,52], nutrient deprivation [18], UV light [53,54], drought [52,55], salinity [36,48,56,57,58], metal toxicity [59,60], and pest [61] and pathogen attack [46,62,63], all showed increases in the anthocyanin content when the plant responded to the above various stresses. For example, with the salt concentration increases from 0 to 150 mmol·L −1 , the anthocyanin content increases from about 16 to 20 mg·g −1 DW in the leaves of Carthamus tinctorius var [36].…”

Section: Functions Of Anthocyanins and Betalains In Plant Responsementioning

confidence: 99%

Research Progress of Betalain in Response to Adverse Stresses and Evolutionary Relationship Compared with Anthocyanin

Meng

Zhu

et al. 2019

Molecules

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Betalains are applicable to many aspects of life, and their properties, characteristics, extraction and biosynthesis process have been thoroughly studied. Although betalains are functionally similar to anthocyanins and can substitute for them to provide pigments for plant color, it is rare to study the roles of betalains in plant responses to adverse environmental conditions. Owing to their antioxidant capability to remove excess reactive oxygen species (ROS) in plants and humans, betalains have attracted much attention due to their bioactivity. In addition, betalains can also act as osmotic substances to regulate osmotic pressure in plants and play important roles in plant responses to adverse environmental conditions. The study of the physiological evolution of betalains is almost complete but remains complicated because the evolutionary relationship between betalains and anthocyanins is still uncertain. In this review, to provide a reference for the in-depth study of betalains compared with anthocyanins, the biochemical properties, biosynthesis process and roles of betalains in response to environmental stress are reviewed, and the relationship between betalains and anthocyanins is discussed.

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“…Moreover, this molecular category showed promising effects in agriculture, controlling weed growth, insect pests, and spread of diseases. 9 To obtain a rich flavonoids extract, the present study considered a by-product of the wine industry represented by the leaves from the pruning of V. vinifera Lambrusco. The key factors of the project were the selection and optimization of the extraction processes.…”

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confidence: 99%

Polyphenols From Vitis vinifera Lambrusco By-Products (Leaves From Pruning): Extraction Parameters Evaluation Through Design of Experiment

Tacchini

Burlini

Maresca

et al. 2019

Natural Product Communications

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Vitis vinifera L. leaves from pruning are by-products of the wine industry and represent an important source of secondary raw material, thanks to their polyphenols content. Optimization of the extraction processes is a key factor for their valorization, and Design of Experiment (DOE) could be a tool to obtain the most performing extract in terms of polyphenols quality/quantity and bioactivity. Vitis vinifera Lambrusco leaves were subjected to ultrasound-assisted extractions guided by a 23 factorial design. Three independent parameters (% solvent, time of extraction, and solvent:solid ratio) were considered to evaluate the extraction process by analyzing the extraction yield, the total phenolic content (Folin-Ciocalteu assay), and the antioxidant capacity (DPPH assay). Moreover, the content of the main molecules was identified and quantified by reversed-phase high-performance liquid chromatography coupled with diode array detection and mass spectrometry. The DOE highlighted the best extraction conditions that showed slight changes considering the different evaluating parameters. The highest extraction yield was obtained by extraction with 100% water, 60 minutes of extraction time, and 30:1 solvent:solid ratio, but it was neither the richest in polyphenols nor antioxidant capacity. The latter 2 characteristics were associated with the extraction performed using 50% ethanol, 35 minutes of extraction time, and a 20:1 solvent:solid ratio. That extract also exhibited the highest quantity of flavonols.

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Flavonoids in Agriculture

Cited by 20 publications

References 57 publications

Seed Priming with Devosia sp. Cell-Free Supernatant (CFS) and Citrus Bioflavonoids Enhance Canola and Soybean Seed Germination

Seed Priming with Devosia sp. Cell-Free Supernatant (CFS) and Citrus Bioflavonoids Enhance Canola and Soybean Seed Germination

Research Progress of Betalain in Response to Adverse Stresses and Evolutionary Relationship Compared with Anthocyanin

Polyphenols From Vitis vinifera Lambrusco By-Products (Leaves From Pruning): Extraction Parameters Evaluation Through Design of Experiment

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