Sistema Regional de Información
en línea para Revistas Científicas de América Latina,
el Caribe, España y Portugal

The purpose of this case study is to investigate issues that arise at the time of transition of ownership, business and wealth in a multigenerational closely held family business (CHFB). This is particularly relevant if the founder owner-manager has to pass the heir-ship to the offspring and specifically if the incumbent is a women. Through this case, authors have made an attempt to discuss the significance of ownership structure, to plan transition and to mitigate conflicts at the time of generational transition.The case is based on primary research and secondary information, and has been tested several times post, which the gaps were identified and filled. The results indicate that absence of the corporate governance (ownership) structure leads to conflicts during transfer of power position in a CHFB. This reflects the necessity of professionalizing the family business to avoid breakdown of communication and trust within the family unit. Inadequately prepared heirs, forced entries of siblings in the business with no competence besides the patriarchs’ distribution of ownership and business were of major concern in a CHFB.

Family business groups are dominant economic actors in emerging economies and play an important role in economic development and globalization efforts of their countries. This study reviews the literature on internationalization of family businessgroups by conducting a content analysis on 80 articles published in selected categories of SSCI journals between 2000 and 2015. Each article was coded along six dimensions and a model synthesizing the past findings was developed. Gaps in the literature were identified and avenues for further research were proposed, pointing out to variables and theories that may be considered.

The paper analyzes the pervasiveness of family board memberships within family business groups (FBGs), which are large and diversified form of family businesses dominant in emerging economies. The data pertain to 2017 and include board information on 640 firms affiliated to the largest 26 FBGs in Turkey. The study cluster analyzes the FBGs according to family involvement in their governance. Derived from different theoretical lenses, it also aims to identify the variables that condition different clusters. Results show that several decades after liberalization, families still control the groups pervasively though with varying degrees. Regarding the extent of family involvement in governance, different clusters are identified as tight control, vertical control, and loose control. Ownership structure emerges as the main antecedent that differentiates FBGs in different clusters.  

Guest Editors:  Txomin Iturralde and Amaia Maseda

This research explores the differences between the main economic financial ratios of family firms and non-family firms. The analysis has been carried out on a total of 335 firms from within the province of Malaga, of which 154 are family firms, with the remaining 181 being non-family firms. The sector that is the subject of this study is the tertiary sector: choosing bars, cafes and wholesale providers of these type of businesses due to their evident importance to the service sector in the province. Among main results, significant differences are highlighted in all the ratios analysed between the two groups of firms studied, as well as a greater distribution of profits to its shareholders by family firms (FF) versus non-family firms (NFF). Results show NFF have relatively higher economic return, although the variation of this ratio is greater than in a family firm.

Background: Fungi from mangrove forests represent a great potential for the bioprospecting of new bioactive metabolites. The rhizosphere of several regions of the world has been widely studied, however, there are no studies on the biodiversity of Mexican mangroves.Objectives: To evaluate the anti-proliferative activity of fungal extracts isolated from accumulated sediments in the rhizosphere of three mangrove species distributed in three zones with different degrees of salinity in Mexico.Methods: The isolated fungi were identified at genus level by taxonomic keys. The anti-proliferative activity was determined by the SRB assay and the strains with values of GI50 <100 μg.mL-1 were identified molecularly.Results and conclusions: Six extracts from four strains exhibited GI50 values < 100 µg.mL-1 in at least one cancer cell line. A strain of Aspergillus pulverulentus isolated from a disturbed area of Avicennia germinans showed the highest anti-proliferative activity against six different cancer cell lines.  The GI50 values ranged from 40 to 83 µg.mL-1 in biomass extracts and 6 to 28 µg.mL-1 in culture broth extracts. This paper is the first study of bioprospecting fungi showing anti-proliferative activity in mangrove sediments in Mexico.

 Antecedentes: En la región norte del Estado de México se ha reportado la enfermedad cuarentenaria llamada “roya transversal” del gladiolo, que afecta la calidad de su flor y cormo. El conocimiento de su comportamiento espacial es necesario para un manejo integrado.Objetivo: Modelar la distribución espacial de la roya transversal en plantaciones de gladiolo en los municipios de Ixtlahuaca y Jocotitlán del Estado de México, durante los ciclos primavera-verano y verano-otoño de 2013 y 2014.Metodología: Se determinó la incidencia y severidad en plantas de 121 puntos de muestreo georeferenciados por parcela para determinar su distribución espacial con técnicas geoestadistícas mediante el programa R.Resultados y conclusiones: La enfermedad estuvo ausente durante los dos ciclos de 2013, y  el ciclo primavera-verano de 2014. Los síntomas y signos de la enfermedad se detectaron durante la etapa de espata del ciclo verano-otoño de 2014, con incidencias finales de 61.1 % en Ixtlahuaca y 75.8 % en Jocotitlán, se observaron pústulas en posición transversal respecto a las nervaduras de la hoja, además de uredosporas. La roya presentó una distribución espacial de tipo agregada durante las etapas fenológicas de espata y floración. El modelo que describió la dependencia espacial fue el de tipo lineal y pentaesférico.

Antecedentes: Las especies del género Mortierella prosperan usualmente como saprófitas en el suelo y materia orgánica de diversos ecosistemas forestales. Tradicionalmente, se han aislado de los sistemas radicales de diversas especies vegetales. Adicionalmente, investigaciones realizadas en suelo de cultivo de aguacate para lograr la purificación de Pythophthora. cinnamomi indican que Mortierella spp. son hongos contaminantes, sin mencionar su patogenicidad.Objetivo: Esta investigación tuvo como objetivo identificar la presencia de Mortierella sp. y evaluar su posible patogenicidad en el cultivo del aguacate.Métodos: Las cepas se aislaron de suelo de huertas ubicadas en los principales municipios productores de aguacate en el estado de Michoacán. Las cepas fueron identificadas y se sometieron a pruebas de patogenicidad con plantas de aguacate de tres meses de edad y con plántulas con seis hojas verdaderas.Resultados y conclusión: 

Antecedentes: Los hongos gasteroides son importantes para el equilibrio de los ecosistemas, al ser degradadores de materia orgánica y presentar algunas especies micorrícicas. A pesar de su importancia los estudios de este grupo son escasos y la mayoría se han enfocado a zonas áridas. En México sólo un trabajo específico sobre la diversidad de hongos gasteroides en bosque mesófilo de montaña se ha publicado.Objetivo: Contribuir al conocimiento de la diversidad de hongos gasteroides presentes en la Estación de Biológica Vasco de Quiroga, Uruapan, Michoacán.Métodos: La recolecta de hongos gasteroides se realizó mediante recorridos exploratorios quincenales durante los meses de julio a noviembre del 2017. La determinación de las especies se realizó con base en características macro- y microscópicas con claves taxonómicas de bibliografía especializada.Resultados y conclusiones: Se determinaron un total de diez especies pertenecientes a los géneros: Bovista (1), Geastrum (5), Lycoperdon (2) y Scleroderma (2). Destacan como nuevos registros para Michoacán y segundas citas para la micobiota de México: Bovista oblongispora var. oblongispora y Geastrum violaceum.

Antecedentes: Los patrones de paredes terminales y externas de conidios observados en microscopia electrónica de barrido (MEB) combinados con caracteres analizados en microscopia de luz (ML) son una herramienta poderosa para la identificación de especies de anamorfos de Erysiphales.Objetivo: Realizar un análisis morfológico mediante MEB de los anamorfos de Erysiphales presentes en plantas de onagra (Oenothera fruticosa), mercadela (Calendula officinalis), hortensia (Hydrangea macrophylla), margarita (Leucanthemum vulgare) y limón (Citrus limon).Métodos: La caracterización morfológica de los especímenes de Erysiphales se realizó mediante MEB y se complementó usando ML.Resultados y conclusiones: La examinación mediante MEB permitió la caracterización de conidióforos, conidios, apresorios hifales, hifas, y tubos germinativos de Erysiphe sp., Podosphaera xanthii, Pseudoidium hortensiae, Golovinomyces macrocarpus y Erysiphe quercicola. Para nuestro conocimiento, este es el primer reporte de Golovinomyces macrocarpus causando cenicilla en L. vulgare en México.