Jesus Hernandez-Ruiz

Dr. Jesus Hernandez-Ruiz

Department of Agronomy, Universidad de Guanajuato, Guanajuato City, Mexico
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Research Focus & Metrics

Academic Career Length

14Years (2013-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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13 January 2020 in Agroforestry Systems
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JNJorge Eric Ruiz Nieto
Jorge Eric Ruiz Nieto
Jesus Hernandez-RuizJesus Hernandez-Ruiz
Jesus Hernandez-Ruiz
JHJosé Antonio Hernández-Marín
José Antonio Hernández-Marín
JMJ. Mendoza-Carrillo
J. Mendoza-Carrillo
MAMa del Rosario Abraham-Juarez
Ma del Rosario Abraham-Juarez
Ana Mireles-ArriagaAna Mireles-Arriaga
Ana Mireles-Arriaga

21 October 2022 in Nature Communications
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WTWolke Tobón-Niedfeldt
Wolke Tobón-Niedfeldt
AMAlicia Mastretta-Yanes
Alicia Mastretta-Yanes
TUTania Urquiza-Haas
Tania Urquiza-Haas
BGBárbara Goettsch
Bárbara Goettsch
ACAngela P. Cuervo-Robayo
Angela P. Cuervo-Robayo
PKPatricia Koleff
Patricia Koleff
Crop wild relatives (CWR) intra- and interspecific diversity is essential for crop breeding and food security. However, intraspecific genetic diversity, which is central given the idiosyncratic threats to species in landscapes, is usually not considered in planning frameworks. Here, we introduce an approach to develop proxies of genetic differentiation to identify conservation areas, applying systematic conservation planning tools that produce hierarchical prioritizations of the landscape. It accounts for: (i) evolutionary processes, including historical and environmental drivers of genetic diversity, and (ii) threat processes, considering taxa-specific tolerance to human-modified habitats, and their extinction risk status. Our analyses can be used as inputs for developing national action plans for the conservation and use of CWR. Our results also inform public policy to mitigate threat processes to CWR (like crops living modified organisms or agriculture subsidies), and could advise future research (e.g. for potential germplasm collecting). Although we focus on Mesoamerican CWR within Mexico, our methodology offers opportunities to effectively guide conservation and monitoring strategies to safeguard the evolutionary resilience of any taxa, including in regions of complex evolutionary histories and mosaic landscapes.

28 June 2016 in Revista de Biologia Tropical
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Jesus Hernandez-RuizJesus Hernandez-Ruiz
Jesus Hernandez-Ruiz
BHBraulio Edgar Herrera-Cabrera
Braulio Edgar Herrera-Cabrera
ADRIANA DELGADO-ALVARADOADRIANA DELGADO-ALVARADO
ADRIANA DELGADO-ALVARADO
VSVictor Manuel Salazar-Rojas
Victor Manuel Salazar-Rojas
AGAngel Bustamante Gonzalez
Angel Bustamante Gonzalez
JRJavier Ramírez-Juarez
Javier Ramírez-Juarez
Wild specimens of Vanilla planifolia represent a vital part of this resource primary gene pool, and some plants have only been reported in Oaxaca, Mexico. For this reason, we studied its geographical distribution within the state, to locate and describe the ecological characteristics of the areas where they have been found, in order to identify potential areas of establishment. The method comprised four stages: 1) the creation of a database with herbarium records, 2) the construction of the potential distribution based on historical herbarium records for the species, using the model of maximum entropy (MaxEnt) and 22 bioclimatic variables as predictors; 3) an in situ systematic search of individuals, based on herbarium records and areas of potential distribution in 24 municipalities, to determine the habitat current situation and distribution; 4) the description of the environmental factors of potential ecological niches generated by MaxEnt. A review of herbarium collections revealed a total of 18 records of V. planifolia between 1939 and 1998. The systematic search located 28 plants distributed in 12 sites in 95 364 Km2. The most important variables that determined the model of vanilla potential distribution were: precipitation in the rainy season (61.9 %), soil moisture regime (23.4 %) and precipitation during the four months of highest rainfall (8.1 %). The species potential habitat was found to be distributed in four zones: wet tropics of the Gulf of Mexico, humid temperate, humid tropical, and humid temperate in the Pacific. Precipitation oscillated within the annual ranges of 2 500 to 4 000 mm, with summer rains, and winter precipitation as 5 to 10 % of the total. The moisture regime and predominating climate were udic type I (330 to 365 days of moisture) and hot humid (Am/A(C) m). The plants were located at altitudes of 200 to 1 190 masl, on rough hillsides that generally make up the foothills of mountain systems, with altitudes of 1 300 to 2 500 masl. In natural conditions, distribution of the species is not limited to high evergreen forests, since it was also found in mountain mesophyll and tropical evergreen forests. The location of new specimens of V. planifolia in its wild condition reduces the potential distribution area by 66 %. This area is fragmented into three geographically separated areas. Habitat reduction was due to the increased number of located plants that define the environmental conditions into a more accurate level. Conservation actions can thus be designed and implemented, focusing on more specific areas within the state of Oaxaca, Mexico.

Paula Isiordia-LachicaPaula Isiordia-Lachica
Paula Isiordia-Lachica
AVAlejandro Valenzuela
Alejandro Valenzuela
Ricardo Alberto Rodríguez-CarvajalRicardo Alberto Rodríguez-Carvajal
Ricardo Alberto Rodríguez-Carvajal
Jesus Hernandez-RuizJesus Hernandez-Ruiz
Jesus Hernandez-Ruiz
JRJorge Alberto Romero-Hidalgo
Jorge Alberto Romero-Hidalgo
The purpose of this article is to contribute to the understanding of the effects generated by the technology and knowledge transfer processes in the agro-food sector, within the context of Mexico, a developing country where the economic sector is one of the most lagging in terms of technological development. To achieve this objective, academic-industry relations, key elements, results, and benefits will be examined in 87 identified cases. The analysis begins by describing the context of agriculture and the food industry in Mexico. Then, 14 cases are presented. Results show that companies implement new processes and methods or launch new products to the market, but also implement a new culture of innovation, by establishing laboratories and undertaking research areas of the firm, creating R&D programs which formalize and continue with the academy-industry alliances. The elements that were not found with the expected frequency, according to international scientific publications, was the participation of an available intellectual property.

23 August 2021 in Journal of Ethnobiology and Ethnomedicine
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JEJosé Espinoza-Pérez
José Espinoza-Pérez
CRCésar Reyes
César Reyes
Jesus Hernandez-RuizJesus Hernandez-Ruiz
Jesus Hernandez-Ruiz
MDMaximino Díaz-Bautista
Maximino Díaz-Bautista
FRFrancisco Ramos-López
Francisco Ramos-López
OPOscar Perez-Garcia
Oscar Perez-Garcia
Background: In some regions of Mexico, edible wild plants have been displaced or eliminated from the traditional food systems, mainly by changes in land use, booming monoculture, herbicide use, and by changes among the new generations in the traditional foods and diets of indigenous populations. In the Totonacapan region of Puebla, the gradual change from the traditional acahual plantation to coffee-type agroecosystems has provoked the displacement of old-growth forests and the eradication of wild plants since 1970. One of the wild species which has been used in traditional medicine and food recipes by the Totonac culture isSmilax aristolochiifolia(SMILACACEAE), known as “kgentsililh”. This species forms part of traditional Totonac recipes, in which the tender stems are still used in local medicine to treat menstrual pain, deal with dysentery, and prevent hair loss. According to the Maxent® Program, there are still potential areas with habitats suitable to promote its conservation in the Poblano Totonacapan.Methods: We conducted 260 interviews with people in 13 locations in the northern Sierra of the State of Puebla. Variables taken into account in the interview related to the consumption frequency of the species, its abundance and distribution perception, reasons or arguments given by the Totonac indigenous population about the decreased presence of specimens ofS. aristolochiifolia, its dates of collection, and the cutting prices of kgentsililh at the community level and in local markets. The relative abundance ofS. aristolochiifoliawas determined through 22 samples in 2ts of 600 m2. Later, its potential distribution in the state of Puebla was estimated using the Maxent® Program Ver. 3.3.3.Results: Of the 260 Totonac families interviewed, 31% had stopped consuming kgentsililh. The residents reported that in the last 50 years the populations of this plant had diminished in the northern Sierra of the State of Puebla, mainly due to changes in land use, herbicide application, over-collection, and urban growth. In traditional medicine, the stem sap ofS. aristolochiifoliais currently employed to help treat baldness, and the “tuberous root” or plant rhizome is used to prepare a tea infusion to treat dysentery. The cost of plant guides varies from 10.00 to 40.00 Mexican pesos for one bunch (around 0.5 to 2.00 US dollars), and every bundle consists of between 7 to 10 cuttings from 0.4 to 0.5 m long. From our 22 quadrats of sampling and collection ofS. aristolochiifolia, we were able to recognize a total of 32 specimens. There is a considerable abundance of kgentsililh in acahual plantations and old-growth forests (evergreen lowland and mid-elevation perennial forest) concerning the coffee-type plantations and milpas. According to our analysis using the Maxent Program®, eight physical and climatic variables have a direct relationship to the potential distribution of the species.Conclusions: Smilax aristolochiifoliais still a plant of socioeconomic importance, mainly because of its food value and its use in traditional medicine by indigenous families in Poblano Totonacapan. It is evident that the villagers perceive that in the last 50 years the species has decreased its population mainly due to land-use change, the application of herbicides to the different family production units, and climate change. At the moment, there is no knowledge about the methods of propagation of the species, and therefore there is no intention on the part of the population to conserve the species. However, it would be of great importance to generate a biocultural conservation strategy and take advantage of the results obtained from the potential geographic distribution area, since according to the Maxent® Program, there are still potential areas with habitat suitable to promote conservation in Poblano Totonacapan.

25 April 2019 in Revista Mexicana de Biodiversidad
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Jesus Hernandez-RuizJesus Hernandez-Ruiz
Jesus Hernandez-Ruiz
BHBraulio Edgar Herrera-Cabrera
Braulio Edgar Herrera-Cabrera
ADRIANA DELGADO-ALVARADOADRIANA DELGADO-ALVARADO
ADRIANA DELGADO-ALVARADO
En orquídeas, la forma y tamaño de caracteres florales como el labelo, sirve para clasificar variación dentro y entre especies. El objetivo del presente trabajo fue caracterizar la variación morfológica infraespecífica a través del labelo de Vanilla pompona analizando 80 flores provenientes de 23 ejemplares del estado de Oaxaca, México. El labelo de cada flor se diseccionó y analizó mediante su morfometría geométrica, obteniéndose 60 variables que se agruparon en región basal, media y apical. Se realizó un análisis de varianza que consideró las recolectas como fuentes de variación y 2 análisis multivariados, componentes principales y conglomerados. Entre recolectas, 58 variables analizadas fueron estadísticamente significativas. El modelo explicó 81% de la variación total estudiada con los 3 primeros componentes principales. Existe variación morfológica floral del labelo en Vanilla pompona representado por 4 morfotipos en Oaxaca, resultado de la probable presión y selección por parte de los polinizadores y el ambiente, donde los complejosmontañosos posiblemente han coadyuvado como barrera geográfica.