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Publications (62)
Actinobacteria, especially the genus Streptomyces, have been shown to be potential biocontrol agents for phytopathogenic bacteria. Bacteria spot disease caused by Xanthomonas spp. may severely affect chili pepper (Capsicum annuum) crops with a subsequent decrease in productivity. Therefore, the objective of the study was to isolate rhizospheric act...
mat supplementary
El objetivo de este trabajo fue evaluar el efecto de dos consorcios
micorrícicos arbusculares nativos de la rizosfera de agave de
suelos agrícolas de Michoacán y un biochar producido a partir
de bagazo de agave mezcalero, en el crecimiento de plantas de
girasol bajo condiciones de invernadero. Durante el desarrollo
del experimento se registraron di...
El uso de microorganismos ha sido una alternativa para promover el crecimiento y biocontrol de plagas y enfermedades en diversos cultivos y agave. En este trabajo se estudió la inoculación de bulbilos de Agave tequilana con distintas micorrizas arbusculares sobre el crecimiento y control de la marchitez causada por Fusarium oxysporum. En invernader...
Background: The fall armyworm Spodoptera frugiperda is one of the main pests of maize in Mexico. Its control and management have been performed mainly with pesticides. One of the alternatives is to incorporate arbuscular mycorrhizal fungi (AMF) because of the benefits they provide to plants improving their growth and promoting their defense system...
Los brasinoesteroides son fitohormonas esteroidales que se han utilizado ampliamente en la agricultura, se han realizado pocos estudios sobre el efecto que pueden tener para inducir la formación de raíces en esquejes de arándano (Vaccinium corymbosum). El objetivo de esta investigación fue evaluar el efecto del 24-epibrasinolide (24-EBL) a distinta...
Actinobacteria from the rhizosphere of agricultural crops are a potential source of antagonists against phytopathogenic microorganisms. Thus, the objective of this study was to characterize the antagonistic activity in vitro of actinobacteria from the rhizosphere
of avocado trees (Persea americana) against Colletotrichum gloeosporioides and Xantho...
This research study assessed the effect of five native consortia of arbuscular mycorrhiza on guava (Psidium guajava L.) plant growth. A completely randomized experimental design was established with seven arbuscular mycorrhizal fungus (AMF) treatments
named: Las Campesinas (LC), Carlos Rojas (CR), Paso Ancho (PA), El Limón (EL), Cerro del Metate (C...
The bacterial spot caused by the phytopathogenic agent Xanthomonas vesicatoria, represents a significant threat due to the affectation of the production of various
crops, including chili; which leads to graves economic losses. Therefore, determining the
severity of the disease in plants is essential for many studies and practical applications wher...
Blue agave (Agave tequilana F.A.C. Weber var. Azul) is an important crop for Mexico, from which tequila is made. In 2018 1,138,800 t of agave were produced under aproduction system where the use of agrochemicals has become widespread; in particular, the excessive use of chemical fertilizers generates problems of environmental impact in the producin...
Mexico is among the first producers of Mexican lime (Ml), with 2.5 million hectares per year. Currently, this agricultural activity is threatened by HuangLonBing (HLB), caused by the bacterium Candidatus Liberibacter asiaticus (CLas). The development of biotechnological strategies aimed at combating this disease is imperative in order to incorporat...
In this work the effect of the N fertilizer application season and the harvest period on the production
and quality of strawberry fruits was evaluated. Strawberries cv 'Camino real' were planted an
experimental plot in Morelia, Mexico under open field conditions. 5 mM of N was applied in the irrigation
in different physiological stages of the crop:...
RESUMEN Los hongos formadores de micorriza arbuscular (HMA) son simbiontes benéf icos de la mayoría de las plantas terrestres. La planta involucrada en la simbiosis es aprovisionada de nutrimentos por parte del hongo que promueve el crecimiento vegetal, a cambio de energía para reproducción del HMA. Se evaluó la efectividad de inóculos multi-especí...
Arbuscular mycorrhizal fungi (AMF) are benef icial symbionts of most terrestrial plants. This symbiosis brings benef its to both symbionts. The plant involved in the symbiosis is supplied with nutrients by the fungus that promotes plant growth, in exchange for energy for reproduction of the AMF. In this context, the effectiveness of multi-specif ic...
Objetivo: Evaluar la inoculación con Hongos Micorrízicos Arbusculares (HMA) y aplicación de vermicomposta (V), en el crecimiento de plantas de papaya (Carica papaya L) en invernadero. Diseño/metodología/aproximación: Se estableció un diseño bifactorial completamente al azar, y se evaluó a Rhizophagus intraradices (RI), un consorcio nativo Barranca...
This study evaluates the dew point method (Allen et al. 1998) to estimate atmospheric vapor pressure from minimum temperature, and proposes an improved model to estimate it from maximum and minimum temperature. Both methods were evaluated on 786 weather stations in Mexico. The dew point method induced positive bias in dry areas but also negative bi...
We propose a new model to estimate daily global radiation from daily temperature range measurements. This model combines that of Majumdar et al. (Sol Energy 13(4):383–394, 1972) to estimate clear sky radiation with a Gompertz function to estimate the relation between temperature range and cloud transmittance. Model parameters are estimated from his...
The presence of both mating types of Phytophthora species in the same pot has not been reported in hosts of commercial nurseries in Mexico. Isolates of Phytophthora were collected in commercial nurseries of Mexico City and Morelos state during 2015. Mating types A1 and A2 of Phytophthora capsici and P. drechsleri were detected on wilted plants of C...
p>No se ha reportado la presencia de ambos tipos de compatibilidad de especies de Phytophthora en plantas hospedantes sembradas en una misma maceta en viveros comerciales de México. En 2015, se colectaron aislados de Phytophthora en viveros comerciales en la Ciudad de México y en el estado de Morelos. Se detectaron los tipos de compatibilidad A1 y...
p>No se ha reportado la presencia de ambos tipos de compatibilidad de especies de Phytophthora en plantas hospedantes sembradas en una misma maceta en viveros comerciales de México. En 2015, se colectaron aislados de Phytophthora en viveros comerciales en la Ciudad de México y en el estado de Morelos. Se detectaron los tipos de compatibilidad A1 y...
Presencia de hongos entomopatógenos nativos en suelos cultivados con maíz del municipio de Epitacio Huerta, Michoacán. Resumen El suelo es el hábitat para una gran diversidad de microorganismos y, muchos de estos, poseen la particularidad de ser agentes naturales contra plagas y enfermedades que atacan a los cultivos. Sin embargo, las diferentes pr...
El propósito de esta revisión es dar a conocer al investigador, protocolos fundamentales que se emplean para el aislamiento, diagnóstico e identificación de Phytophthora spp., cubriendo aspectos generales del género para una mejor comprensión y análisis del mismo. Esta información será de utilidad para investigadores que trabajan con enfermedades c...
Antecedentes: Los hongos micorrízicos arbusculares (HMA) forman asociaciones simbióticas con la mayoría de las especies vegetales, por lo cual es importante conocer la riqueza, diversidad y funcionalidad de estas especies de HMA.Objetivo: Determinar la composición y abundancia de esporas de HMA asociados a la rizosfera de Agave cupreata en la época...
Con el objetivo de evaluar la promoción del crecimiento y la bioprotección de consorcios de hongos micorrízicos arbusculares (HMA) contra Phytophthora capsici (PC) en plantas de chile (Capsicum annuum L.) var. poblano y serrano, en el año 2014 en el IIAF de la UMSNH se realizó un experimento en condiciones de invernadero evaluando siete inóculos de...
To evaluate the inoculation effect of Arbuscular Mycorrhizal Fungi (AMF) and actinomycetes on promoting plant growth and diminishing wilt in pepper plant (Capsicum annuum L.), a pot experiment was conducted under greenhouse conditions using a factorial design on random blocks. It was evaluated the native Cerro del Metate mycorrhizal consortium, and...
p>Se evaluó el efecto de la inoculación micorrícica de plantas de Agave cupreata en el biocontrol de Fusarium oxysporum y en la promoción del crecimiento vegetal. En invernadero, semillas de A. cupreata fueron inoculadas con cuatro consorcios de hongos micorrícicos arbusculares (HMA) nativos, denominados El Huizachal (EH), Agua Dulce (AD), Paso Anc...
Antecedentes:
Los hongos micorrízicos arbusculares (HMA) forman asociaciones simbióticas con la mayoría de las especies vegetales, por lo cual es importante conocer la riqueza, diversidad y funcionalidad de estas especies de HMA.
Objetivo:
Determinar la composición y abundancia de esporas de HMA asociados a la rizosfera de Agave cupreata en la épo...
The aim of this study was to evaluate the effect of eight native consortia of arbuscular mycorrhizal fungi (AMF), a commercial strain and a control without AMF on the growth of Agave inaequidens. Agave seedlings were inoculated and kept under greenhouse conditions for 300 days. At 90, 180 and 270 days after inoculation, the number of leaves and pla...
In herbaceous plants grown in controlled environmental conditions nitrate (NO3−) uptake increases during the day and decreases in the night. The aim of this work was to measure NO3− uptake rates along the day-night cycle, in rose (Rosa hybrida L.) plants grown under controlled environmental conditions. Two independent experiments were conducted ins...
In order to evaluate the promotion of growth and bio consortia arbuscular mycorrhizal fungi (HMA) against Phytophthora capsici (PC) in pepper plants (Capsicum annuum L.) var. poblano and serrano, in 2014 in the IIAF of the UMSNH an experiment was conducted under greenhouse conditions to evaluate seven inoculates HMA, a positive control (Rhizophagus...
Plant diseases are a limiting factor for the production of agriculture food around the
world. The control methods are mainly based on the use of chemicals that are toxic to the
environment and human health; on the other hand, the excessive use of these products
creates a resistance in the causative agents of the disease, which can cause an increase...
Although the Carica papaya plant is a mycotrophic species that requires high nitrogen (N) concentration to obtain high yield, the effect of interaction between inoculums and nitrogen doses has not been studied thoroughly for this species. In this work we evaluated the effect of interaction between five inoculums (a native inoculum denominated Agua...
The development of inoculants based on soil microorganisms for use as biological control agents of plant pathogens is a strategy that may reduce the use of agrochemicals, particularly for controlling diseases caused by pathogenic bacteria such as Pseudomonas syringae pv. phaseolicola (Psph). This study evaluated the in vitro inhibitory effectivenes...
Papaya is a major fruit export for Mexico; however, the international market is increasingly demanding bio quality, representing a significant production challenge due to the need for bio-ecological and sustainable technologies. Arbuscular mycorrhizal fungi (AMF) can contribute significantly to plant nutrition, particularly in phosphorous (P) uptak...
La Reserva de la Biosfera Mariposa Monarca (RBMM) presenta un nivel crítico de deforestación que pone en peligro el fenómeno migratorio de la mariposa. Variables biofísicas, como el índice de área foliar (LAI) y la fracción de radiación fotosintéticamente activa absorbida por las plantas (fAPAR), pueden ayudar en el diagnóstico del estado de una ma...
The development of inoculants based on soil microorganisms for use as biological control agents of plant pathogens is a strategy that may reduce the use of agrochemicals, particularly for controlling diseases caused by pathogenic bacteria such as Pseudomonas syringae pv. phaseolicola (Psph). This study evaluated the in vitro inhibitory effectivenes...
La Reserva de la Biosfera Monarca (RBMM) presenta un nivel crítico de deforestación que pone en peligro el fenómeno migratorio de la mariposa. Variables biofísicas, como el índice de área foliar (LAI) y la fracción de radiación fotosintéticamente activa absorbida por las plantas (fAPAR), pueden ayudar en el diagnóstico del estado de una masa forest...
The Monarch Butterfly Biosphere Reserve (MBBR) is in a critical situation with levels of deforestation that threaten butterfly migration. Biophysical variables such as the leaf area index (LAI) and the fraction of photosynthetically active radiation absorbed by plants (fAPAR), can help diagnose the state of a forest. These variables can be measured...
Simbiosis micorrízica arbuscular y fuentes de materia orgánica en el crecimiento de Carica papaya L. Interciencia, vol. 39, núm. 3, marzo-marzo, 2014, pp. 198-204 Asociación Interciencia Caracas, Venezuela ¿Cómo citar? Número completo Más información del artículo Página de la revista Interciencia, ISSN (Versión impresa): 0378-1844 interciencia@ivic...
The pre-transplant mycorrhization of vegetable species that require nursery stage can provide economic benefits to farmers by reducing the use of fertilizers and pesticides. On the other hand, compost from some agro-industrial wastes could be added to the farming soil as organic fertilizer, alone or in combination with arbuscular mycorrhizal fungi...
The establishing of roses in hydroponic systems implies development propagation techniques that are
efficient, economical and that produce homogeneous populations in a short time. In this work, were evaluated
the effects of different substrates (peat, agrolite and vermiculite, a 1:1 v/v mixture of peat and vermiculite and
two 1:1 v/v and 1:3 v/v mi...
La rosa es sin lugar a dudas la principal especie florícola de corte a nivel mundial. Ante el incremento de la producción de este cultivo en sistemas hidropónicos, se requieren técnicas de propagación que sean eficientes, económicas y que produzcan poblaciones homogéneas. El éxito en la propagación, dependerá de la combinación de los factores endóg...
In the context of global change, attention has been focused on the increases in CO2 and temperature, as well as a reduction in the global solar irradiance. In this chapter we have explored how components of
global change such as CO2, temperature and radiation will affect water uptake by plants. We focus on how aquaporins will respond to these envir...
Salinity stress is known to modify the plasma membrane lipid and protein composition of plant cells. In this work, we determined the effects of salt stress on the lipid composition of broccoli root plasma membrane vesicles and investigated how these changes could affect water transport via aquaporins. Brassica oleracea L. var. Italica plants treate...
Phi cell layers were discovered in the 19th century in a small number of species, including members of the Brassicaceae family. A mechanical role was first suggested for this structure; however, this has never been demonstrated. The main objective of the present work was to analyse the ultrastructure of phi cells, their influence on ion movement fr...
Although broccoli is moderately tolerant to salt stress, the tolerance mechanism is still unknown. Therefore, in this article, the uptake and transport of nutrients and water in relation to the changes in root anatomy (phi thickening appearance) caused by salinity stress have been studied. The effect of phi thickening in the response of these plant...
Phytochemicals in vegetables are known to be responsible for protective effects against many human diseases, including cardiovascular
diseases and different types of cancer. Environmental conditions and physiological factors may modify the amounts of these
compounds present in vegetables and fruits, but also crop management strategies could increas...
An experiment was carried out to study the effects of the proportion of ammonium (NH4+) and nitrate (NO3-) in the nutrient solution on avocado plants in a hydroponic system. Five treatments were applied, consisting of the following proportions of ammonium to nitrate ions in the solution: T0 = 0:4, T1 = 1:3, T2 = 2:2, T3 = 3:1 and T4 = 4:0 at a cons...
La fertilización nitrogenada aportada al cultivo de fresa (Fragaria x ananassa Duch.) en Michoacán (México), excede con mucho las necesidades reales de las plantas, por lo que supone un gasto de producción excesivo y causa, además, graves problemas ambientales. Para optimizar el suministro de fertilizantes es necesario monitorear su estado de nutri...
An experiment was conducted to study the effects of nitrate (NO3 ) and ammonium (NH4 ) ratios in nutrient solutions on the growth and production of fruits, runners, and daughter plants of strawberry Fragaria x ananassa Duch., grown in a hydroponic system. Five treatments were applied, consisting of different proportions of NH4 and NO3 in the nutrie...
Estimating the nitrogen (N) status of plants as a function of their spectral response is a promising technique to diagnose and optimize N fertilization. An experiment was conducted in Jiquilpan (Michoacán, México) in which three N levels (0.3, 3, and 20 mM of NO3 in the irrigation water) were applied to strawberry (Fragaria vesca) in a randomized c...
El cultivo de la fresa (Fragaria x ananasa Duch.) en el estado de Michoacán, México, es el segundo más rentable después de la zarzamora (Rubís leibmannii Focke). En la década anterior se han incorporando nuevas tecnologías (coberturas plásticas, fertirriego, etc.) a los sistemas de producción de fresa, con la finalidad de incrementar la producción;...
The purpose of this work was to determine the critical nitrogen (N) and N dilution curve for strawberry. An experiment was carried out in a greenhouse under hydroponics conditions. Strawberry plants (cv. 'Aromas') were planted in pots in a gravel/coconut fiber substrate. Seven N levels (0, 0.01, 0.1, 0.3, 3, 9 and 30 mM in the irrigation water) wer...
