Roots of invasive woody plants produce more diverse flavonoids than non-invasive taxa, a global analysis

Borda, Valentina; Reinhart, Kurt O.; Ortega, María Gabriela; Burni, Magalí; Urcelay, Carlos

doi:10.1007/s10530-022-02812-8

Cited by 6 publications

(3 citation statements)

References 76 publications

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“…margarita ( Scervino et al., 2005a ). Recently, quercetin has been related with the expansion of invasive plants ( Pei et al., 2020 ; Tian et al., 2021 ; Borda et al., 2022 ). It was shown that these plants have increased levels of quercetin in their root exudates than native plants, which was associated to an enhanced mycorrhizal colonization and capacity of expansion.…”

Section: Discussionmentioning

confidence: 99%

Flavonoids promote Rhizophagus irregularis spore germination and tomato root colonization: A target for sustainable agriculture

et al. 2023

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The use of arbuscular mycorrhizal (AM) fungi has great potential, being used as biostimulants, biofertilizers and bioprotection agents in agricultural and natural ecosystems. However, the application of AM fungal inoculants is still challenging due to the variability of results when applied in production systems. This variability is partly due to differences in symbiosis establishment. Reducing such variability and promoting symbiosis establishment is essential to improve the efficiency of the inoculants. In addition to strigolactones, flavonoids have been proposed to participate in the pre-symbiotic plant-AM fungus communication in the rhizosphere, although their role is still unclear. Here, we studied the specific function of flavonoids as signaling molecules in AM symbiosis. For that, both in vitro and in planta approaches were used to test the stimulatory effect of an array of different subclasses of flavonoids on Rhizophagus irregularis spore germination and symbiosis establishment, using physiological doses of the compounds. We show that the flavone chrysin and the flavonols quercetin and rutin were able to promote spore germination and root colonization at low doses, confirming their role as pre-symbiotic signaling molecules in AM symbiosis. The results pave the way to use these flavonoids in the formulation of AM fungal-based products to promote the symbiosis. This can improve the efficiency of commercial inoculants, and therefore, help to implement their use in sustainable agriculture.

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Section: Discussionmentioning

confidence: 99%

Flavonoids promote Rhizophagus irregularis spore germination and tomato root colonization: A target for sustainable agriculture

et al. 2023

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“…Often, unique compounds are specifically synthesized, as in the case of the barley-produced saponarin, a newly identified flavonoid, to suppress Bromus diandricus spread [121]. According to the "novel weapon hypothesis" flavonoids accumulation may drive the establishment success of invasive plants and, in particular, allelopathic actions exerted specifically by molecules belonging to the flavonols family may represent a signature of tree-invasive species [122].…”

Section: Flavonoids Mediate Plant-plant Interactionsmentioning

confidence: 99%

Flavonoids Are Intra- and Inter-Kingdom Modulator Signals

et al. 2022

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Flavonoids are a broad class of secondary metabolites with multifaceted functionalities for plant homeostasis and are involved in facing both biotic and abiotic stresses to sustain plant growth and health. Furthermore, they were discovered as mediators of plant networking with the surrounding environment, showing a surprising ability to perform as signaling compounds for a multitrophic inter-kingdom level of communication that influences the plant host at the phytobiome scale. Flavonoids orchestrate plant-neighboring plant allelopathic interactions, recruit beneficial bacteria and mycorrhizal fungi, counteract pathogen outbreak, influence soil microbiome and affect plant physiology to improve its resilience to fluctuating environmental conditions. This review focuses on the diversified spectrum of flavonoid functions in plants under a variety of stresses in the modulation of plant morphogenesis in response to environmental clues, as well as their role as inter-kingdom signaling molecules with micro- and macroorganisms. Regarding the latter, the review addresses flavonoids as key phytochemicals in the human diet, considering their abundance in fruits and edible plants. Recent evidence highlights their role as nutraceuticals, probiotics and as promising new drugs for the treatment of several pathologies.

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“…Meanwhile, a comparison study of congeneric pairs of native and invasive plants found higher concentrations of SLs and quercetin (a flavonoid) in invasive plant root exudates, and that their exudates more efficiently stimulated AM fungal colonization than native plant root exudates (Yu et al 2022). In addition to patterns of interspecific variation in root secondary chemicals, many successful woody invaders produce a greater quantity of root flavonoids than their native populations (Borda et al 2022), such as quercetin in roots and root exudates from invasive populations of T. sebifera were higher than those in native populations in an intraspecific study (Pei et al 2020;Tian et al 2021). These findings suggest that rapid genetic evolution and metabolomic reprograming facilitates invasive plants thriving in new environments.…”

Section: Introductionmentioning

confidence: 99%

Molecular profiling of chemical signals enhancing plant invasion by shaping mutualistic associations

Tian,

Pei,

et al. 2023

Preprint

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Chemical signals are crucial in mediating ecological and evolutionary adaptation of plants to their environments. Invasive plants can release distinct secondary metabolite mixtures in their new ranges, enhancing their mutualistic interactions and improving their performance, but genetic mechanisms of such adaptations are unexplored. We used Triadica sebifera plants to investigate evolutionary changes in chemical signals (flavonoids and strigolactones) that enhance arbuscular mycorrhizal (AM) fungal associations. We found plants from invasive populations produced higher concentrations of the flavonoid quercetin and the strigolactone 5-deoxystrigol, and had higher AM fungal colonization rates and biomass, relative to those from native populations. Also, applications of either chemical increased AM fungal colonization. Higher expression of genes in flavonoid (FLS) and strigolactone (CCD8) biosynthesis pathways that increased levels of quercetin and 5-deoxystrigol, respectively, were confirmed. These results provide insights into genetic mechanisms that contribute to higher AM fungal colonization and plant invasion success.

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Roots of invasive woody plants produce more diverse flavonoids than non-invasive taxa, a global analysis

Cited by 6 publications

References 76 publications

Flavonoids promote Rhizophagus irregularis spore germination and tomato root colonization: A target for sustainable agriculture

Flavonoids promote Rhizophagus irregularis spore germination and tomato root colonization: A target for sustainable agriculture

Flavonoids Are Intra- and Inter-Kingdom Modulator Signals

Molecular profiling of chemical signals enhancing plant invasion by shaping mutualistic associations

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