Determinación De La Flora Polinífera Del Valle De Oxapampa (Pasco-Perú) en Base a Estudios Palinológicos

Rivera, Rosario Sayas; Mesía, Luis Huamán

doi:10.21704/rea.v8i1-2.382

Cited by 11 publications

(6 citation statements)

References 13 publications

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“…The CEs of propolis with the largest zones of inhibition were those from apiaries in Chontabamba, Saylla, Yura, and Oxapampa, with the last being widely studied and showing similar effects in previous studies ( Alemán et al ., 2018 ; Eguizábal & Nakata, 2014 ; Tovalino & Contreras, 2010 ). The boundless vegetation of the Oxapampa valley, where species such as Dictyocaryum lamarckianum (palm tree), Juglans neotropica (Andean walnut), Cyrtocymura scorpioides , Vernonanthura patens ( Kunth), Baccharis latifolia , Cecropia spp., Inga spp., and Pinus tecunumanii (timber tree), combined with the tropical climate of this area ( Muñoz & Del Pilar, 2015 ), offer a variety of active components that are transported by bees to their hives in the form of propolis ( Fernández-Calderón et al ., 2020 ; Okińczyc et al ., 2020 ; Rivera & Mesía, 2009 ). This variety enhances their biological properties.…”

Section: Discussionmentioning

confidence: 99%

Antibacterial, antibiofilm, and cytotoxic activities and chemical compositions of Peruvian propolis in an in vitro oral biofilm

et al. 2021

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Background: Natural products with antibacterial potential have begun to be tested on biofilm models, bringing us closer to understanding the response generated by the complex microbial ecosystems of the oral cavity. The objective of this study was to evaluate the antibacterial, antibiofilm, and cytotoxic activities and chemical compositions of Peruvian propolis in an in vitro biofilm of Streptococcus gordonii and Fusobacterium nucleatum. Methods: The experimental work involved a consecutive, in vitro, longitudinal, and double-blinded study design. Propolis samples were collected from 13 different regions of the Peruvian Andes. The disk diffusion method was used for the antimicrobial susceptibility test. The cytotoxic effect of propolis on human gingival fibroblasts was determined by cell viability method using the MTT (3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide) assay, and the effect of propolis on the biofilm was evaluated by confocal microscopy and polymerase chain reaction (PCR). Results: The 0.78 mg/mL and 1.563 mg/mL concentrations of the methanolic fraction of the chloroform residue of Oxapampa propolis showed effects on biofilm thickness and the copy numbers of the srtA gene of S. gordonii and the radD gene of F. nucleatum at 48 and 120 hours, and chromatography (UV, λ 280 nm) identified rhamnocitrin, isorhamnetin, apigenin, kaempferol, diosmetin, acacetin, glycerol, and chrysoeriol. Conclusions: Of the 13 propolis evaluated, it was found that only the methanolic fraction of Oxapampa propolis showed antibacterial and antibiofilm effects without causing damage to human gingival fibroblasts. Likewise, when evaluating the chemical composition of this fraction, eight flavonoids were identified.

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Section: Discussionmentioning

confidence: 99%

Antibacterial, antibiofilm, and cytotoxic activities and chemical compositions of Peruvian propolis in an in vitro oral biofilm

et al. 2021

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“…The relationship between bees and floral resources is analyzed through palynological studies of pollen loads; thus, the plants that contribute to the diet of bees can be identified (Basilio 2000; Sayas Rivera and Huamán Mesía 2009). Indeed, the floral pollen sources of a region can be characterized to determine the botanical or geographical origin of honey and pollen loads (Andrada 2003; Forcone et al 2011).…”

Section: Introductionmentioning

confidence: 99%

“…Several works have analyzed the pollen resources used by A. mellifera in South America (Carpes et al 2009; De Novais et al 2009; Sayas Rivera and Huamán Mesía 2009; Chamorro-García et al 2013; Montenegro et al 2013; Hilgert Moreira et al 2014; Salamanca et al 2014; Negri et al 2018; Alves and Santos 2019; Casas Restrepo et al 2021). In Argentina, studies have been conducted in the Pampa phytogeographic province (Telleria 1993), Parana River Delta (Basilio 2000), southwest of Córdoba (Faye et al 2002), different areas of the Espinal (Andrada 2003; Andrada and Tellería 2005), Monte region in La Pampa province (Nabb and Tamame 2007), Patagonia (Forcone et al 2011; Forcone and Ruppel 2012) and in the central region of the country (García Paoloni 2021).…”

Section: Introductionmentioning

confidence: 99%

Temporal and spatial variation of pollen content in pollen loads of Apis mellifera in the Yungas of northwest Argentina

2022

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The floral resources used by Apis mellifera as pollen source include those present in natural forests like the Yungas as well as forested areas. The aim of this work was to determine the main pollen resources harvested by A. mellifera and their variation during the honey production season. Forty pollen load samples were randomly collected from apiaries located in four sites (Tilquiza, El Fuerte, Los Alisos and Los Toldos) in spring and summer between 2011 and 2017. Sampling was conducted using pollen traps and the samples were subjected to conventional melissopalynological techniques. Pollen sources were identified using palynological atlases and compared with the reference palynotheca. A total of 70 pollen types distributed in 39 botanical families were identified, with the following families having the highest index of family importance (IF): Asteraceae (23.9), Fabaceae (19), Myrtaceae (12.8), Poaceae (8.3), Euphorbiaceae (8.2) and Vitaceae (4.3). The main resources used were: Mimosa, Eupatorium, Blepharocalyx salicifolius, Baccharis and Sebastiania. A pollen diagram was used to analyze the different pollen resources used throughout the study seasons. Species foraged in spring included B. salicifolius, Anadenanthera colubrina, Parapiptadenia excelsa and Sebastiania and those foraged in summer included Mimosa, Viguiera, Type Cissus and species of the family Poaceae; all of these species are native to the forest. The present results contribute to the knowledge of polliniferous species of the Yungas and evidence the importance of this bee as flower visitor in the forest.

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“…El análisis de los recursos poliníferos utilizados por Apis mellifera ha sido abordado por diversos autores de Sudamérica (Sayas Rivera & Huamán Mesía, 2009;Chamorro-Garcia et al, 2013;Montenegro, Pizarro, Mejias, & Rodriguez, 2013;Salamanca, Mónica, Tangarife, & Casas, 2014). En Argentina se encuentran los trabajos de Tellería (1993); Basilio (2000); Faye, Planchelo, & Molineli (2002); Andrada (2003); Andrada & Tellería (2005); Nabb & Tamame (2007); Forcone et al, (2011); Forcone & Ruppel (2012) y para el noroeste argentino solo el reporte de Burgos, Sánchez, & Lupo (2015) para la región del Chaco Serrano de la provincia de Jujuy.…”

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Recurso polinífero utilizado por Apis mellifera L. (Himenoptera: Apidae) en un área de bosque subtropical del noroeste de Argentina

Méndez

Sánchez

Flores

et al. 2018

RBT

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In Northwest Argentina, Yungas subtropical forests are very important because of their huge vegetal diversity. Honeybees (A. mellifera) use these resources to feed and therefore as an ecosystemic service through beekeeping. The characterization of pollen flora of a region allows getting to know the food source and defining the importance of different plant species for colonies development and maintenance. The aim of the present study is to identify the pollen flora used by A. mellifera in the Yungas western area in Jujuy (Argentina) by means of their pollen loads characterization and to analyze the variations of two consecutive productive periods throughout spring and summer. To do this, 14 samples taken monthly were analyzed over the periods from September 2011 to March 2012 and September 2012 to March 2013. The samples were obtained from pollen traps at the entrances of the hives and were treated in the laboratory under conventional melisopalinology techniques with subsequent acetolysis. A total of 46 pollen types belonging to 25 botanical families were identified. The most important ones according to the family importance index are Euphorbiaceae (35.54), Fabaceae (26.27), Asteraceae (20.77), Vitaceae (16.14), Myrtaceae (9.13). Zanthoxylum, Sebastiania, Mimosa, Euphorbiaceae, Cactaceae, Parapiptadenia excelsa, Eupatorium, Cissus, Eucalyptus y Viguiera were identified as dominant resources. The variations of the breadth Index trophic niche show a floral resources selection for the area, where the use of native species stands out. The information produced in this study contributes to the knowledge of the resource offered by the forest and the species that are important for beekeeping production. Besides, it contributes to enhance the production and marketing of this product from its added value, allowing beekeepers a good management of hives.

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Determinación De La Flora Polinífera Del Valle De Oxapampa (Pasco-Perú) en Base a Estudios Palinológicos

Cited by 11 publications

References 13 publications

Antibacterial, antibiofilm, and cytotoxic activities and chemical compositions of Peruvian propolis in an in vitro oral biofilm

Antibacterial, antibiofilm, and cytotoxic activities and chemical compositions of Peruvian propolis in an in vitro oral biofilm

Temporal and spatial variation of pollen content in pollen loads of Apis mellifera in the Yungas of northwest Argentina

Recurso polinífero utilizado por Apis mellifera L. (Himenoptera: Apidae) en un área de bosque subtropical del noroeste de Argentina

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