Rosalba Mireya Hernández-Herrera

• University of Guadalajara

In the last decade, interest in the use of seaweed and seaweed-derived products in horticulture has grown due to their great potential as biostimulants for increasing yields and improving food quality in multiple crops. A greenhouse experiment was conducted to investigate the effects of the application of the green seaweed Ulva ohnoi (either as a s...

El texto es una contribución a la divulgación del conocimiento sobre el uso de productos bioestimulantes como alternativas sostenibles para la agricultura. En general, compartimos una serie de explicaciones relacionadas con algunos cuestionamientos comúnmente difundidos sobre los bioestimulantes en plantas, que propiciarán un mejor entendimiento so...

Estudia la comunidad de moluscos asociados a Sargassum sp. en Bahía de Banderas, México

p> Background: Camote de cerro ( Dioscorea remotiflora Kunth) stands out as a crop option in protected agriculture in Mexico due to its agronomic benefits and its versatility in the food and pharmaceutical industries. Despite its potential, it is not commercially cultivated in the country motivating the need to develop an efficient propagation meth...

Algae-derived products have great potential as crop biostimulants due to their multiple beneficial effects at different stages of plant development. Green seaweeds of the genus Ulva are well suited for this purpose because they are widely distributed and grow rapidly in a wide range of conditions. In this study, a greenhouse experiment was conducte...

Biostimulants such as seaweed extracts are widely used to stimulate plant growth and crop productivity under optimal or stressful conditions, constituting a sustainable strategy to mitigate the impacts of abiotic stress on plant performance. In this study, a growth experiment was conducted to evaluate the effects of an aqueous extract from the seaw...

Seaweeds are used in traditional agriculture practices because of their beneficial effects. Recently, the rising demand for organically grown foods has amplified the use of organic fertilizers such as seaweed extracts. Despite their beneficial effects, few studies have reported information about compounds in seaweed extracts that are responsible fo...

Ulva ohnoi M. Hiraoka & S. Shimada es una macroalga verde de distribución cosmopolita que crece masivamente en zonas litorales eutrofizadas del mundo, representando un recurso altamente aprovechable. El objetivo del presente trabajo fue evaluar el efecto del polvo de U. ohnoi y su extracto acuoso en las propiedades del sustrato y en la respuesta mo...

The Jalisco coast presents a great heterogeneity of environments that provide the necessary conditions for the establishment anddevelopment of macroalgae; These environments are described in the present study, relating them to the diversity of macroalgaerecorded and collected in 19 locations on the Jalisco coast from 2000 to 2018. The results show...

Background. The interest in studying seaweed polysaccharides as plant growth biostimulants is recent and has generally focused on seaweed liquid extracts for compounds content that have positive effect on plant development. Within these compounds are the carbohydrates such as alginate and fucoidan, among others. Goals. To evaluate the effect of cru...

Citation: Espinosa-Antón, A.A.; Zamora-Natera, J.F.; Zarazúa-Villaseñor, P.; Santacruz-Ruvalcaba, F.; Sánchez-Hernández, C.V.; Águila Alcántara, E.; Torres-Morán, M.I.; Velasco-Ramírez, A.P.; Hernández-Herrera, R.M. Application of Seaweed Generates Changes in the Substrate and Stimulates the Growth of Tomato Plants. Plants 2023, 12, 1520. https://...

Biostimulants constitute an emerging group of crop management products used to enhance productivity under abiotic stress conditions. The ability of some biostimulant products, such as seaweed extracts (SE), to enhance crop tolerance to salinity stress has been documented. SE contain a series of bioactive compounds and signaling molecules, as well a...

To ensure food security given the current scenario of climate change and the accompanying ecological repercussions, it is essential to search for new technologies and tools for agricultural production. Microorganism-based biostimulants are recognized as sustainable alternatives to traditional agrochemicals to enhance and protect agricultural produc...

Hormesis and other non-monotonic growth responses have been observed in numerous plant species that are independent of biological or physicochemical agents, which may be potentially exploited to increase crop productivity. A dose–response study was performed on mung bean (Vigna radiata) by applying seaweed liquid extracts (SLEs) from Sargassum horr...

The use of extracts derived from different plants has gained popularity as an alternative option to manage weeds and support phenological development in plants. One of the main problems facing agricultural production is the intensive application of chemical fertilizers that harm the environment. This study investigated the biostimulant effects of t...

Daminozide (B-Nine) it is a plant growth regulator, is translocated from the leaves to the stem to avoid elongation and produce more compact plants and uniform growth and vigor. For the cultivation of Lisiathus the information of the damonizide application is scarce despite of great marketing potential, so the objective of this study was to evaluat...

The use of biostimulantscould reduce the dependence on agrochemicals, increase the yield and resistance of plants against biotic and abiotic stress, influencing plant development. The objective of this research was to test whether aqueous extractsof V. sphaerocephalaand V. fastigiatapromote vegetative and root development in F. ananassa. The study...

Plant biostimulants include different substances, compounds, and formulations of growth-promoting microorganisms, such as those derived from arbuscular mycorrhizal fungi (AMF) or seaweed extracts (SWE), which are used to regulate or enhance physiological and morphological processes in plants. This study analyzed the morphological implications of th...

Salinity is one of the most severe environmental problems worldwide and affects plant growth, reproduction, and crop yields by inducing physiological and biochemical changes due to osmotic and ionic shifts in plant cells. One of the principal modifications caused by osmotic stress is the accumulation of reactive oxygen species (ROS), which cause me...

Reducir al mínimo el uso de agroquímicos y estimular el empleo de productos biológicos obtenidos de materias primas locales, constituye un reto para la agricultura moderna. Las algas marinas representan una fuente promisoria de agroinsumos biodegradables, no tóxicos y seguros para la salud animal, humana y del ecosistema. La mayoría de los producto...

Los extractos de algas marinas son ampliamente utilizados en la agricultura como bioestimulantes del crecimiento vegetal y constituyen una alternativa ecológica al consumo excesivo de productos agroquímicos sintéticos. Estos productos naturales son mezclas complejas de compuestos bioactivos tales como reguladores del crecimiento vegetal, polisacári...

Background Sargassum liebmannii is widely distributed throughout rocky, coastal upwelling areas in the tropical Mexican Pacific. This brown algae is of great environmental and industrial importance. However, no information is available that documents the genetic or phenotypic variability of the species, which is needed to determine how it may react...

Reducir al mínimo el uso de agroquímicos y estimular el empleo de productos biológicos obtenidos de materias primas locales, constituye un reto para la agricultura moderna. Las macroalgas marinas son una valiosa fuente de carbohidratos, reguladores del crecimiento vegetal, macro y micronutrientes, vitaminas, aminoácidos, osmoprotectantes y antioxid...

Macroalgae contains high concentrations of polysaccharides, polyphenols and secondary metabolites. Those compounds are factors that prevent the isolation of deoxyribonucleic acid (DNA) and therefore inhibit the polymerase chain reaction (PCR) that is the beginning for the application of any molecular marker. In the present study, the application of...

One of the main phytosanitary problems are root-knot nematodes of the genus Meloidogyne. The use of Verbesina sphaerocephala could substitute the use of chemical nematicides. The objective of this research was to test whether aqueous extracts of V. sphaerocephala promote development and reduce the damage caused by M. incognita in Cucumis sativus. S...

Hormesis is a dose–response phenomenon that is characterized by stimulation at low doses and inhibition at high doses. Extensive evidence has accumulated showing the occurrence of hormesis in numerous plant species independent of physicochemical agents, and this phenomenon has become a target for achieving greater crop productivity. Biostimulants (...

p> Background. The use of liquid algae extract as a biostimulant when applied to leaves or roots, improves crop development and consequently yield, since by stimulating natural processes they benefit from the use of nutrients and increases resistance to conditions of biotic and / or abiotic stress. Objective. This investigation evaluated the respon...

From their chemical nature to their ecological interactions, coral reef ecosystems have a lot in common with highly productive terrestrial ecosystems. While plants are responsible for primary production in the terrestrial sphere, the photosynthetic endosymbionts of corals are the key producers in reef communities. As in plants, coral microbiota hav...

Background. The use of liquid algae extract as a biostimulant when applied to leaves or roots, improves crop development and consequently yield, since by stimulating natural processes they benefit from the use of nutrients and increases resistance to conditions of biotic and / or abiotic stress. Objective. This investigation evaluated the response...

Experimental alkaline and blended seaweed liquid extracts (ASLE and BSLE, respectively) were produced from red seaweeds (Acanthophora spicifera, Gelidium robustum, and Gracilaria parvispora) and brown seaweeds (Macrocystis pyrifera, Sargassum horridum, and Ecklonia arborea). The effects as biostimulants on the germination and growth of the mung bea...

In the present study the effect of neutral and alkaline seaweed extracts was evaluated on the seed germination and tomato seedlings growth. The seeds were embedded in different dilutions (0.2, 0.4 and 1.0%) with both extracts. Seeds treated with Ulva lactuca and Padina gymnospora extracts at (0.2 %) enhanced germination parameters. However, alkalin...

Este trabajo se examinó a los micromoluscos del Pacífico tropical mexicano. Los especímenes provienen de diferentes proyectos de investigación del Departamento de Ecología Aplicada, del Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara.

Background: One of the promising directions in agriculture is the rational use of biologically active substances or plant growth stimulators obtained from local raw materials. In Mexico, seaweed can be considered a cheap, abundant, and accessible local resource along the Mexican coast. It represents great potential for eventual commercial exploitat...

Seaweed extracts contain a variety of compounds, such as macro- and micronutrients and plant growth regulators, which can be used by plants. Such extracts can have both negative and positive effects (depending on the concentration) when directly applied to seeds and plants. The aim of this study was to assess the effects of acid seaweed liquid extr...

Although marine seaweeds have been used as biostimulants since the beginning of modern agriculture, studies have only recently focused on the ability of seaweed extracts and their polysaccharides to enhance growth of plants. In this work, two bioassays were carried out to study the growth-promoting activity of seaweed extracts and polysaccharide-en...

Seaweed extracts are used as nutrient supplements, biostimulants, or biofertilizers in agriculture and horticulture to increase plant growth and yield. In this study, we examined the effect of liquid seaweed extracts (LSEs) made from Ulva lactuca, Caulerpa sertularioides, Padina gymnospora, and Sargassum liebmannii as biostimulants on the germinati...

Several reports have shown that crude or purified extracts of green, brown, and red seaweeds induce protection against fungal, bacterial, and viral pathogens in plants. In this work, we report that polysaccharide-enriched seaweed extracts obtained from green, Ulva lactuca and Caulerpa sertularioides, and brown algae, Padina gymnospora and Sargassum...