Factores asociados con la distribución espacial  de muérdagos enanos en dos poblaciones  de Pinus hartwegii del centro de México

Agramont, Ángel Rolando Endara; Heredia-Bobadilla, Rosa Laura; García-Almaraz, Luis Antonio; Luna-Gil, Alma Abigail; Franco-Maass, Sergio; Cibrián-Llanderal, V. D.

doi:10.22201/ib.20078706e.2022.93.5008

Cited by 5 publications

(2 citation statements)

References 29 publications

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“…It has also been reported that in the Flora and Fauna Protection Area of Nevado de Toluca only the specie A. vaginatum subsp. vaginatum is distributed ( Endara-Agramont et al, 2022 ). The vegetal material was dehydrated at 35 °C in a botanical dryer for 72 h. Then, the dried plant was ground in a Willey mill to reduce the size particle to 1 mm.…”

Section: Methodsmentioning

confidence: 99%

Bioactive compounds from the parasitic plant Arceuthobium vaginatum inhibit Haemonchus contortus egg hatching

Becerril-Gil,

Estrada-Flores,

González-Cortazar

et al. 2024

Rev. Bras. Parasitol. Vet.

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The aim of this study was to assess the in vitro ovicidal activity of an ethyl acetate extract from Arceuthobium vaginatum (EtOAc-E) and their subfractions (AvR5-AvR14) against Haemonchus contortus using the egg hatching inhibition (EHI) test. The EtOAc-E and subfractions were tested at 0.12-2.00 and at 0.015-2.0 mg/mL, respectively. Distilled water and methanol (2%) were used as negative controls and Thiabendazole (0.10 mg/mL) as a positive control. Treatments with a dependent effect on concentration were subjected to regression analysis to determine the effective concentrations (EC50 and EC90). The major secondary compounds present in the extract and subfractions were identified by high performance liquid chromatography (HPLC). The EtOAc-E and AvR9 exhibited the best ovicidal effect recording 97.5 and 100% of EHI at 0.25 mg/mL, respectively. The EtOAc-E and AvR9 displayed an EC50= 0.12 and 0.08 mg/mL, respectively. The HPLC analysis in the EtOAc-E and bioactive fractions indicated the presence of a polyphenol, glycosylated flavanones, quercetin glucoside, cinnamates, coumarin, cinnamic acid derivative, ferulic acid, coumarate, naringenin, protocatechuic acid and naringin. Results demonstrated that A. vaginatum extract and fraction is able to inhibit the egg hatch process of H. contortus and could be a viable option for the control of small ruminant haemonchosis.

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Section: Methodsmentioning

confidence: 99%

Bioactive compounds from the parasitic plant Arceuthobium vaginatum inhibit Haemonchus contortus egg hatching

Becerril-Gil,

Estrada-Flores,

González-Cortazar

et al. 2024

Rev. Bras. Parasitol. Vet.

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“…The establishment of both species occurs through a system of haustoria attached to the tree parenchyma, from which the mistletoe obtains nutrients, water and secondary compounds necessary for growth and reproduction (Hawksworth and Wiens, 1996;Queijeiro-Bolaños and Cano-Santana, 2018). A. vaginatum and A. globosum affect 43% of the P. hartwegii tree population in the Nevado de Toluca Flora and Fauna Protection Area (NTFFPA) (Sáenz-Romero et al, 2020;Endara-Agramont et al, 2022). Manual pruning is an alternative in the control of both species of mistletoe, as it reduces the degree of infestation of the trees (Sotero-García et al, 2018), in its different age categories; therefore, its use in animal feed can be a sustainable alternative on farms in high mountain areas, so it is important to know its nutritional characteristics in the different age categories of affected trees, which in addition, by including mistletoe as a complementary feed can reduce the environmental impact generated by these pests to the forest and also reduce the purchase of feed for livestock.…”

Section: Introductionmentioning

confidence: 99%

NUTRITIONAL COMPOSITION OF Arceuthobium vaginatum subsp. vaginatum AND A. globosum subsp. grandicaule AND THEIR EFFECT ON IN VITRO RUMINAL FERMENTATION KINETICS

Becerril-Gil,

Olmedo-Juárez,

Endara-Agramont

et al. 2023

Trop Subtrop Agroecosyst

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Background: Arceuthobium vaginatum subsp. vaginatum (BM; black mistletoe) and Arceuthobium globosum subsp. grandicaule (YM; yellow mistletoe), are two parasitic plant species abundant in the forests of northern and central Mexico and Central America, affect 43% of the P. hartwegii tree population in the Nevado de Toluca Flora and Fauna Protection Area (NTFFPA), including mistletoe as a complementary feed in sheep can reduce the environmental impact generated by these pests to the forest and also reduce the purchase of feed for livestock. Objective: To evaluate the chemical composition, phenolic content and in vitro fermentation kinetics of two mistletoe species (M) Arceuthobium vaginatum subsp. vaginatum (BM; black mistletoe) and A. globosum subsp. grandicaule (YM; yellow mistletoe), in four age categories (AC) of Pinus hartwegii (AC: small sapling, large sapling, juvenile and adult) collected in the Nevado de Toluca Flora and Fauna Protection Area (NTFFPA). Methodology: The chemical composition (dry matter DM; neutral detergent fiber NDF; acid detergent fiber ADF and crude protein CP), phenolic content (total phenols TP; total tannins TT and condensed tannins, CT), in vitro fermentation kinetics parameters and in vitro digestibility were analysed. The experimental design used was completely randomized design with 2x4 factorial arrangement. Results: DM content was different between M (P< 0.05), the highest was found in BM. The NDF and ADF content was different between M, ranging from 364.45-467.43 g/kg DM. No differences (P>0.05) were observed in CP which averaged 62.08 g/kg DM. The TP, TT and CT content was different between M (P<0.05), the highest content was in YM with no effect observed in AC. B-gas production (mL of gas) presented differences between M and AC sampled (P<0.05). The gas production rate c on average was 0.042. Lag time was different between M (P<0.05). The in vitro digestibility of dry matter and organic matter were different between M (P<0.05). Implications: The results reported here serve as a tool for decision making on its possible inclusion as a forage addition to a diet in sheep feeding. Conclusions: The chemical composition and in vitro digestibility was different between M and the AC, contain secondary metabolites such as total phenols and condensed tannins and have an impact on in vitro fermentation.

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Pollen signal of modern vegetation registered in surface soil samples along an elevation gradient from Iztaccíhuatl volcano, central Mexico

Rodríguez-Pérez,

Vázquez Selem,

Cañellas-Boltà

et al. 2024

Veget Hist Archaeobot

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Characterising the vegetation-pollen signal is a crucial task for enhancing the interpretation of fossil pollen records. This study analyses 28 surface soil samples collected in the surroundings of Iztaccíhuatl volcano, between 2,650 and 4,024 m asl. Pollen zones and ordination analysis were assessed to establish a qualitative connection between the pollen signal and the distribution of plant communities along the elevation gradient. The results show: (i) the predominant pollen type in the pollen assemblage is Pinus; (ii) pollen grains of Quercus and Alnus are present along the elevation gradient, even at high elevations where the parental plants are not typically found; (iii) samples taken between 2,650 and 3,338 m asl., where fir forests dominate, exhibit higher values of Abies pollen compared to samples above 3,405 m asl.; (iv) the locally-dispersed pollen of the hemiparasite Arceuthobium results key in identifying the presence of pine forests; and (v) pollen taxa such as Apiaceae, Eryngium, Valerianaceae, and Caryophyllaceae are linked to higher elevations, specifically where the plant communities of Pinus hartwegii and alpine grassland occur. The study suggests that the pollen signal along the elevation gradient is useful to characterise the main plant communities of the study site (fir forest, pine forest and alpine grassland). Additionally, the percentage variations of Abies in the pollen signal below 3,600 m asl. show the reduction of fir forest communities resulting from recent human activities in the area.

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Factores asociados con la distribución espacial de muérdagos enanos en dos poblaciones de Pinus hartwegii del centro de México

Cited by 5 publications

References 29 publications

Bioactive compounds from the parasitic plant Arceuthobium vaginatum inhibit Haemonchus contortus egg hatching

Bioactive compounds from the parasitic plant Arceuthobium vaginatum inhibit Haemonchus contortus egg hatching

NUTRITIONAL COMPOSITION OF Arceuthobium vaginatum subsp. vaginatum AND A. globosum subsp. grandicaule AND THEIR EFFECT ON IN VITRO RUMINAL FERMENTATION KINETICS

Pollen signal of modern vegetation registered in surface soil samples along an elevation gradient from Iztaccíhuatl volcano, central Mexico

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