Alkaloids and phenolics biosynthesis increases mango resistance to infection by Ceratocystis fimbriata

Araújo, Leonardo; Bispo, Wilka Messner Silva; Rios, Jonas Alberto; Fernandes, Sérgio Antônio; Rodrigues, Fabrício Á.

doi:10.1590/1678-4499.261

Cited by 17 publications

(12 citation statements)

References 37 publications

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“…For instance, inoculation of D. nobile with MF23, a mycorrhizal fungus previously isolated from the roots of D. officinale, significantly increased total alkaloid content (18.3%) by forming peloton to supply nutrients for their hosts (Zhang et al, 2012). Similarly, Ceratocystis fimbriata infection significantly increased alkaloid accumulation in mango (Araujo et al, 2016).…”

Section: Strategies For Enhancing Dendrobium Bioactive Compounds Prodmentioning

confidence: 99%

Transcriptomic Landscape of Medicinal Dendrobium Reveals Genes Associated With the Biosynthesis of Bioactive Components

et al. 2020

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Many plants of Dendrobium genus are precious traditional herbs with high commercial value and excellent medicinal effects. They are perennial aerophytes or epiphytes of terrestrial orchids growing on cliffs and tree trunks covered with mosses in forests throughout the tropical and subtropical Asia and eastern Australia. The stem contains a variety of bioactive components, including polysaccharides and alkaloids, with strong antioxidant, neuroprotective, and immunomodulatory effects. Great attention has been drawn to the Dendrobium genus regarding its medicinal effectiveness, and the related researches have been accumulating rapidly in recent years. The bioactive components are mainly the intermediates or final products produced in specialized metabolite biosynthesis. Thus far, the activity, molecular structure, and composition of major medicinal ingredients have been partially elucidated, and the sequencing of several transcriptomes has been starting to shed new light on the biosynthesis regulation mechanism. This paper reviewed the advances of researches concerning the biosynthetic pathways of medicinal specialized metabolites from Dendrobium, especially the large number of related genes, with the hope of further promoting the development and utilization of those components and correspondingly protecting the Dendrobium resources in more effective ways.

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Section: Strategies For Enhancing Dendrobium Bioactive Compounds Prodmentioning

confidence: 99%

Transcriptomic Landscape of Medicinal Dendrobium Reveals Genes Associated With the Biosynthesis of Bioactive Components

et al. 2020

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“…Plant phenolics are synthesized by two different metabolic routes, the malonic acid and the shikimic acid pathways, converging into the phenylpropanopid pathway [ 46 , 84 ]. The shikimic acid pathway produces aromatic compounds in plants, such as the amino acids tyrosine, tryptophan and phenylalanine [ 85 ], but also produces gallic acid as an intermediate compound, which is the precursor of hydrolysable tannins, gallotannins and ellagitannins [ 86 , 87 , 88 ].…”

Section: Role Of Genetics On the Distribution And Biosynthesis Of mentioning

confidence: 99%

Opinion on the Hurdles and Potential Health Benefits in Value-Added Use of Plant Food Processing By-Products as Sources of Phenolic Compounds

Camargo

Schwember

Parada

et al. 2018

IJMS

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Plant foods, their products and processing by-products are well recognized as important sources of phenolic compounds. Recent studies in this field have demonstrated that food processing by-products are often richer sources of bioactive compounds as compared with their original feedstock. However, their final application as a source of nutraceuticals and bioactives requires addressing certain hurdles and challenges. This review discusses recent knowledge advances in the use of plant food processing by-products as sources of phenolic compounds with special attention to the role of genetics on the distribution and biosynthesis of plant phenolics, as well as their profiling and screening, potential health benefits, and safety issues. The potentialities in health improvement from food phenolics in animal models and in humans is well substantiated, however, considering the emerging market of plant food by-products as potential sources of phenolic bioactives, more research in humans is deemed necessary.

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“…Tea plants are rich in flavonoids and alkaloid, such as catechins and caffeine, which play roles in plant defense (Kuc, 1995). Several reports have indicated that alkaloids and phenolics can enhance plant resistance during pathogen–host interactions (Ahuja et al, 2012; Araujo et al, 2016). Catechins can inhibit the activity of PG and PL in C. gloeosporioides during interactions with avocado fruits and thereby slow the softening of avocado fruits after harvest (Prusky et al, 1988).…”

Section: Introductionmentioning

confidence: 99%

Differences in the Characteristics and Pathogenicity of Colletotrichum camelliae and C. fructicola Isolated From the Tea Plant [Camellia sinensis (L.) O. Kuntze]

et al. 2018

Front. Microbiol.

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Colletotrichum, the causative agent of anthracnose, is an important pathogen that invades the tea plant (Camellia sinensis). In this study, 38 isolates were obtained from the diseased leaves of tea plants collected in different areas of Zhejiang Province, China. A combination of multigene (ITS, ACT, GAPDH, TUB2, CAL, and GS) and morphology analyses showed that the 38 strains belonged to two different species, namely, C. camelliae (CC), and C. fructicola (CF). Pathogenicity tests revealed that CC was more invasive than CF. In vitro inoculation experiments demonstrated that CC formed acervuli at 72 hpi and developed appressoria on wound edges, but CF did not develop these structures. Under treatment with catechins and caffeine, the growth inhibition rates of CF were remarkably higher than those of CC, indicating that the nonpathogenic species CF was more vulnerable to catechins and caffeine. Growth condition testing indicated that CF grew at a wide temperature range of 15–35°C and that the optimum temperature for CC growth was 25°C. Growth of both CC and CF did not differ between acidic and weakly alkaline environments (pH 5–8), but the growth of CC was significantly reduced at pH values of 9 and 10. Furthermore, the PacC/RIM101 gene, which associated with pathogenicity, was identified from CC and CF genomes, and its expression was suppressed in the hyphae of both species under pH value of 5 and 10, and much lower expression level was detected in CC than that in CF at pH 6. These results indicated that temperature has more important effect than pH for the growth of two Colletotrichum species. In conclusion, the inhibition by secondary metabolite is an important reason why the pathogenicity by CC and CF are different to tea plant, although the environmental factors including pH and temperature effect the growth of two Colletotrichum species.

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Alkaloids and phenolics biosynthesis increases mango resistance to infection by Ceratocystis fimbriata

Cited by 17 publications

References 37 publications

Transcriptomic Landscape of Medicinal Dendrobium Reveals Genes Associated With the Biosynthesis of Bioactive Components

Transcriptomic Landscape of Medicinal Dendrobium Reveals Genes Associated With the Biosynthesis of Bioactive Components

Opinion on the Hurdles and Potential Health Benefits in Value-Added Use of Plant Food Processing By-Products as Sources of Phenolic Compounds

Differences in the Characteristics and Pathogenicity of Colletotrichum camelliae and C. fructicola Isolated From the Tea Plant [Camellia sinensis (L.) O. Kuntze]

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