Seleção de clones de guaranazeiro para adaptabilidade e estabilidade no estado do Amazonas

Pinto, Carlos Enrique Daniel Lopez; Atroch, A. L.; Fajardo, Juan Daniel Villacis; Filho, F. J. do Nascimento

doi:10.22491/rca.2018.2558

Cited by 5 publications

(4 citation statements)

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“…The benefits of phytopathogen inhibition were evaluated only on the BRS-Cereçaporanga cultivar. However, it is important to emphasize that these beneficial responses may vary on the basis of host genetics [43,44]. This suggests that different results can be expected when using the same control agent in other guarana cultivars.…”

Section: Discussionmentioning

confidence: 99%

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Colletotrichum siamense, a Mycovirus-Carrying Endophyte, as a Biological Control Strategy for Anthracnose in Guarana Plants

Casas

Almeida

Pereira

et al. 2021

Braz. arch. biol. technol.

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Section: Discussionmentioning

confidence: 99%

“…The improved cultivars demonstrated good field tolerance to the phytopathogen. This is the case for the BRS-Maués cultivar, currently selected as the most promising cultivar due to its productivity and tolerance to anthracnose [44]. However, there are no studies explaining which gene or set of genes is involved in this tolerance process.…”

Section: Discussionmentioning

confidence: 99%

Colletotrichum siamense, a Mycovirus-Carrying Endophyte, as a Biological Control Strategy for Anthracnose in Guarana Plants

Casas

Almeida

Pereira

et al. 2021

Braz. arch. biol. technol.

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“…BRS Maués is already a cultivar and contains high values of CT, EC, and ECy, but low CF. The cultivar belongs to the group (Ia) and has been extensively tested in the field, demonstrating high adaptability and stability (Nascimento Filho, Atroch, Cruz, & Souza, 2011) and higher yield, compared with other genotypes (Pinto, Atroch, Fajardo, & Nascimento Filho, 2018). The CMU874 genotype has the highest contents of CT and EC, belongs to Group Ia, and has very low TB content and yield (<1.5 kg plant −1 ).…”

Section: Promising Crossesmentioning

confidence: 99%

Phytochemistry divergence among guarana genotypes as a function of agro‐industrial characters

et al. 2020

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Guarana [Paullinia cupana var. sorbilis (Mart.) Ducke] is a typical South American plant, native to the Amazon, with subspontaneous occurrence in Maués, Amazonas, Brazil, where it was domesticated and cultivated by the Sateré‐Mawé indigenous community. Guarana is an original Brazilian product with great economic and industrial potential owing to the energetic, antioxidant, and medicinal properties of its seeds. In spite of its importance, there is still a gap in knowledge about genetic diversity and adaptations that might improve agro‐industrial uses of guarana seeds. This study was aimed at estimating phytochemical diversity, classification, and typology of guarana genotypes. Agro‐industrial potential among eight genotypes was estimated based on phytochemical characters (theobromine, caffeine, catechin, and epicatechin content, quantified by high performance liquid chromatography) and yield in three locations from harvests between 2015 and 2016. Phytochemical divergence was assessed by the mean Euclidean distance. Grouping was performed by the unweighted pair‐group method using arithmetic averages. Metabolite content varied considerably between genotypes (e.g., among caffeine [3.23–7.35%], catechin [0.20–3.57%], and epicatechin [0.09–4.22%]), and dry seed yield was the character with the greatest variation (0.048–5.13 kg plant−1). The metabolic profile variations of the genotypes were clustered into three chemotypes: energetic and antioxidant guarana (genotypes CIR815, CIR904, and CMA498); antioxidant guarana (genotypes BRS‐Maués and CMU874); and energetic guarana (genotypes CMA831, CMU952, and BRS‐CG372). Genotypes CIR815, CIR904, and CMU874 have the potential to be future commercial cultivars, providing quality raw material for soft drinks, energy drinks, and pharmaceutical products.

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“…Currently, Brazil is the main guarana producer in the world. Most of the production is consumed in the domestic market by the carbonated beverages sector (45%), and remainder amount is used in the manufacture of syrups, powders and pharma compounds in general [ 22 ]. The growing demand for different healthy products among consumers, especially in the beverage sector, is expected to increase the guarana market to USD 8.30 billion by 2021, representing an increase of 142% over the value published in 2018, reflecting an increase of USD 5.86 billion [ 23 ].…”

Section: Introductionmentioning

confidence: 99%

Fungal Endophytic Community Associated with Guarana (Paullinia cupana Var. Sorbilis): Diversity Driver by Genotypes in the Centre of Origin

Santos

Silva

Ferreira

et al. 2020

JoF

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Guarana plant is a native of the Amazon region. Due to its high amount of caffeine and tannins, the seed has medicinal and stimulating properties. The guarana industry has grown exponentially in recent years; however, little information is available about associated mycobiota, particularly endophytic fungi. The present study aimed to compare the distribution and diversity of endophytic fungi associated with the leaves and seeds of anthracnose-resistant and susceptible guarana plants produced in Maués and Manaus, Amazonas State, Brazil. A total of 7514 endophytic fungi were isolated on Potato Dextrose Agar, Sabouraud and Czapek media, and grouped into 77 morphological groups. Overall, fungal communities in guarana leaves and seeds were mainly composed by Colletotrichum and Fusarium genera, but also by Chondrostereum, Clonostachys, Curvularia, Hypomontagnella, Lentinus, Neopestalotiopsis, Nigrospora, Peroneutypa, Phyllosticta, Simplicillium and Tinctoporellus. Obtained results indicate that some members of Colletotrichum and Fusarium genera may have experienced dysbiosis during the guarana domestication process, suggesting that some individuals may behave as latent pathogens. The susceptible guarana genotype cultivated in Manaus presented higher fungal diversity. The relative abundance of taxa and diversity among samples suggests that communities are structured by genotype and geographic location. This is the first report of mycobiota in both guarana leaves and seeds.

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Seleção de clones de guaranazeiro para adaptabilidade e estabilidade no estado do Amazonas

Cited by 5 publications

References 0 publications

Colletotrichum siamense, a Mycovirus-Carrying Endophyte, as a Biological Control Strategy for Anthracnose in Guarana Plants

Colletotrichum siamense, a Mycovirus-Carrying Endophyte, as a Biological Control Strategy for Anthracnose in Guarana Plants

Phytochemistry divergence among guarana genotypes as a function of agro‐industrial characters

Fungal Endophytic Community Associated with Guarana (Paullinia cupana Var. Sorbilis): Diversity Driver by Genotypes in the Centre of Origin

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