Lily Zelaya-Molina

Centro Nacional de Recursos Genéticos-INIFAP

Compared to agrochemicals, bioinoculants based on plant microbiomes are a sustainable option for increasing crop yields and soil fertility. From the Mexican maize landrace “Raza cónico” (red and blue varieties), we identified yeasts and evaluated in vitro their ability to promote plant growth. Auxin production was detected from yeast isolates and c...

Introducción. Rhizobium ha sido utilizado como estimulador del crecimiento en leguminosas. Diferentes especies de este grupo se asocian al garbanzo (Cicer arietinum L.), por lo que resulta importante obtener aislados con capacidad de beneficiar su crecimiento y productividad. Objetivo. Seleccionar e identificar aislados de Rhizobium sp. en cuanto a...

Maize is one of the most important staple crops around the word. In Mexico, Los Altos de Jalisco is an agricultural region with the highest production of maize with rainfed irrigation, an agronomic management based on the use of no longer sustainable agrochemicals, and sowing of coated seeds of different commercial origin. Nowadays, the microbiota...

Debido al continuo aumento de la población humana, la demanda de producción de alimentos deberá aumentar 70-100% en los siguientes años. Sin embargo, la seguridad alimentaria de la humanidad es afectada por diversos factores, entre ellos los insectos plaga, que actualmente son controlados mediante la aplicación de grandes dosis de insecticidas sint...

En el presente estudio se determinóel efecto del acetato en el crecimiento deGeobacter sulfurreducens (atcc 51573). Elacetato es una molécula que Geobacterpuede oxidar, para realizar sus funcionesbiológicas, por lo cual es importante teneruna mayor comprensión de su efecto sobre elcrecimiento de la bacteria. Se utilizó el medioNBAF con diferentes c...

RESUMEN La creciente demanda de alimentos en el mundo, sumado al incremento de los costos de producción, ha llevado a la humanidad a desarrollar tecnologías alternativas para la producción de alimentos. Entre las diferentes tecnologías, el uso de microorganismos benéficos ha mostrado resultados alentadores, además de ser cada vez más aceptado entre...

Recibido: 23 marzo 2022, aceptado 12 junio 2022 Artículo científico RESUMEN Las rizobacterias influyen directamente en el desarrollo y rendimiento de los cultivos agrícolas y contribuyen en la recuperación de suelos erosionados; su uso se ha extendido a nivel mundial para contribuir al desarrollo de una agricultura sostenible. En La Frailesca, Chia...

Recibido: 27 febrero, aceptado 2 abril 2022 Artículo científico RESUMEN En el año 2020 se reportó un incremento sustancial en la producción de agave tequilero debido a la alta demanda de esta bebida en el extranjero. La región de los Altos de Jalisco se ha destacado por ser una de las principales zonas productoras de este cultivo en México. A pesar...

recibido: 23 febrero 2022; aceptado 15 mayo 2022 artículo científico RESUMEN Las rizobacterias promotoras del crecimiento vegetal se han empleado para el desarrollo de biofertilizantes que ayuden en la generación de una producción agrícola sostenible, que ahora se emplean en los recubrimientos de semillas para mejorar su establecimiento y germinaci...

Background: The COVID-19 pandemic evidenced the fragility of the agri-food sector by affecting the food supply chains which directly depend on the health of its main actors. In this context, countries need to rethink the agricultural production models, considering environmental and human health as priorities to achieve food safety. Aim: Systematica...

Mexican maize landraces, produced for local consumption, are adapted to different environmental conditions, and their yield is affected by abiotic and biotic factors, including the use of agrochemicals. The search for sustainable alternatives to agrochemicals includes the study of the culturable microbial communities. In this study, the fungal comm...

Agricultural practices dependent on agrochemicals, combined with changes on climate patterns in producing areas, exert selective pressure on microorganisms’ populations associated to crops, resulting in the periodical increasing of plant pathogens. Using culture-dependent techniques, the main types of phytopathogens associated with a riceproducing...

p>COVID-19 has had an impact on the regional and worldwide agricultural value chain, jeopardizing food security. It is time to reassess the approach of the agri-food sector and to consider that the food supply and plant health, as agrosystemic services, must depend on strategies with a low impact on productive and environmental assets. One strategy...

El presente trabajo de investigación se realizó en Tepatitlán de Morelos, Jalisco, en las instalaciones del Campo Experimental Centro Altos de Jalisco. Se utilizaron semillas de especies hortícolas (chile chilaca, melón y pepino) inoculadas con biofertilizantes (Azospirillum brasilenses y Glomus intraradices) y sometidas a diferentes concentracione...

This research work was carried out in Tepatitlán de Morelos, Jalisco, at the facilities of the Centro Altos de Jalisco Experimental Field. Seeds of horticultural species (chilaca chili pepper, melon and cucumber) were used inoculated with biofertilizers (Azospirillum brasilenses and Glomus intraradices) and subjected to different concentrations of...

p> Background: The COVID-19 pandemic evidenced the fragility of the agri-food sector by affecting the food supply chains which directly depend on the health of its main actors. In this context, countries need to rethink the agricultural production models, considering environmental and human health as priorities to achieve food safety. Aim: Systemat...

Numerosas especies vegetales de interés agrícola establecen simbiosis con microorganismos edáficos, tal es el caso de microorganismos promotores del crecimiento vegetal; los cuales proporcionan grandes beneficios debido a que ayudan a disminuir el uso excesivo de fertilizantes y pesticidas utilizados en la producción agrícola. Actualmente, la agric...

Numerous plant species of agricultural interest establish symbiosis with soil microorganisms, such as microorganisms that promote plant growth, which provide great benefits because they help to reduce the excessive use of fertilizers and pesticides used in agricultural production. Currently, Mexican agriculture is looking for environmentally friend...

El uso de biofertilizantes es una de las estrategias con gran auge en todo el mundo para el desarrollo de una producción agrícola sostenible; por lo que la búsqueda y caracterización de microorganismos con potencial de crecimiento vegetal se ha incrementado en los últimos años. En este sentido los recursos genéticos vegetales nativos, como el géner...

Maize is an important crop worldwide having vital nutritional, medicinal, and economic significance. It is vulnerable to a broad spectrum of emerging infections and diseases caused by Fusarium species which are collectively termed fusariosis. The negative consequences of fusariosis can stimulate a considerable economic loss in the food chain. With...

At present, studies of biological control agents of microbial origin (BCA-M) have mainly focused on their taxonomic characterization, through the use of conventional molecular markers, and the in vitro evaluation of modes of action, or under greenhouse conditions, but limitedly under field conditions. Furthermore, recent bioprospecting studies of B...

The bacterial community of the artisanal Adobera cheese from Los Altos de Jalisco was described through high-throughput sequencing of 16S rRNA gene libraries. Samples were collected in two different seasons (dry and rainy) during four key steps of the manufacturing process (raw milk, fresh curd, matured curd, and cheese). Bacterial diversity was hi...

Maize silage is used in the diet of dairy cows, with suitable results in milk yield. In this study, the composition and diversity of the bacterial communities of the silage process of Amarillo Zamorano (AZ) Mexican maize landrace with relation to the Antilope (A) commercial hybrid are described. From both types of maize, seeds were sown in experime...

Maize silage is used in the diet of dairy cows, with suitable results in milk yield. In this study, the composition and diversity of the bacterial communities of the silage process of Amarillo Zamorano (AZ) Mexican maize landrace with relation to the Antilope (A) commercial hybrid are described. From both types of maize, seeds were sown in experime...

Since the Postclassic, Mexica farmers unknowingly took advantage of the great microbial diversity present in the lake bed that they used as a substrate in their agricultural production schemes. Over the years, Mexican agriculture successfully evolved to intensify the countryside and managed to significantly increase agricultural productivity. Howev...

Desde el Posclásico, sin saberlo, los agricultores mexicas aprovechaban la gran diversidad microbiana presente en el lecho de los lagos que utilizaban como sustrato en sus esquemas de producción agrícola. A través de los años, la agricultura mexicana evolucionó de forma exitosa a la intensificación del campo y logró incrementar significativamente l...

In Mexico, okra (Abelmoschus esculentus L.) is grown mainly for export, but its production is affected by various pests and diseases. Plants with mosaic and chlorotic mottling symptoms were collected in Iguala, Mexico. The transmission tests revealed that the disease was not transmitted neither by seed nor by mechanical means. However, it was trans...

Fusaroisis is one of the main diseases of maize that generates high commercial losses worldwide, is caused by strains of different Fusarium (Link ex Grey) species complexes; however, studies of biocontrol agents have created high expectations for the implementation of sustainable alternatives to control this plant disease, through different mechani...

The avocado belongs to the genus Persea, which is one of the most controversial genera of the Lauraceae family, since the relationships within the subgenus Persea are not clear and only recognized two species, Persea americana and Persea schiedeana. Its relationship with the subgenus Eriodaphne is also complex and there is a debate as to whether i...

RESUMEN Actualmente, el uso de semen criopreservado tiene importancia en las estrategias de investigación y producción del ganado bovino. En este contexto de criopreservación la determinación de microorganismos patógenos de importancia reproductiva del ganado bovino es fundamental para garantizar la confiabilidad para el uso futuro de este recurso...

The genus Persea has two subgenera, Persea and Eriodaphne. There is controversy about the taxonomy between species of the subgenus Persea, and its relationships with the subgenus Eriodaphne. Because of its complex evolutionary patterns, the subgenus Persea has considerable variability with uncertain taxonomic affinities. In this study, we analyzed...

The genus Persea has two subgenera, Persea and Eriodaphne. There is controversy about the taxonomy between species of the subgenus Persea, and its relationships with the subgenus Eriodaphne. Because of its complex evolutionary patterns, the subgenus Persea has considerable variability with uncertain taxonomic affinities. In this study, we analyzed...

Mine tailings are man-made environments characterized by low levels of organic carbon and assimilable nitrogen, as well as moderate concentrations of heavy metals. For the introduction of nitrogen into these environments, a key role is played by ammonia-oligotrophic/diazotrophic heavy metal-resistant guilds. In mine tailings from Zacatecas, Mexico,...

Purpose of work A simple and rapid DNA extraction protocol capable of obtaining high-quality and quantity DNA from a large number of individuals is essential for assaying population and phylogenetic studies of plant pathogens. Most DNA extraction protocols used with oomycetes are relatively lengthy and cumbersome for high throughput analysis. Comme...

During the spring of 2004, corn seedlings with symptoms of wilting and stunting were observed in corn fields with emergence problems in Madison and Brown counties, Ohio. Phytophthora isolates were recovered from sections of root tissue of diseased seedlings placed on dilute V8 media amended with pentachloronitrobenzene, iprodione, benlate, neomycin...

Michoacan State is the largest producer of blackberries (Rubus fruticosus) in Mexico with more than 4,000 ha in production. During the rainy season of 2007 (July to September), purple, angular, vein-delimited leaf spots along the midrib and major veins were observed. Affected young fruit lost their shine, became shriveled, and later dried. Some fru...

In recent years, lily (Lilium spp.) has become an important ornamental crop in diverse regions of Mexico. Since 2005, unusual symptoms have been observed on lily plants grown from imported bulbs in both greenhouse and production plots at San Pablo Ixayo, Boyeros, and Tequexquinauac, Mexico State. Symptoms included a zigzag line pattern on leaves, d...

Since 2005, symptoms of zigzag lines between midribs of leaves, dwarfism, gigantic stems or with shortened internodes were ob- served on Lilium spp. plants, in several producer plots of Mexico State, grown from imported bulbs. The 16S rDNA analysis showed that the symptoms were associated to a phytoplasma related to 'Candidatus phytoplasma asteris'...

Zea mays and Sorghum bicolor are important crops for animal and human nutrition worldwide. In the Central Highland Valley of Mexico, both crops are extremely important, and research is aimed toward increasing yield, disease resistance, and crop adaptation from 1,900- to 2,700-m elevation. In a 3-year field breeding experiment (2004 to 2006), leaf b...