Exposure of maize seeds to liquid nitrogen modifies the morphology and hormonal response of young plants.

Background: Cryopreservation currently represents the most suitable strategy for the long-term conservation of plant germplasm. While much effort has focused on the development of protocols to enable successful cryostorage, there are few, if any reports, that consider the effect of cryogenic temperatures on the phytohormone status of the seed and developing seedlings.

Objective: To investigate the effect of cryopreservation on external seed coat features as well as levels of indole-3-acetic acid (IAA), abscisic acid (ABA) and 1-aminocyclopropane-1-carboxylic acid (ACC) in maize.

Cryopreservation of seeds of Neonotonia wightii Wight and Arn: a strategy for conservation, dormancy breaking and preservation of nutritional status.

Background: N. wightii (Leguminosae) is valued as a cover crop and as a potential source of protein in food insecure countries. However, plantlet establishment is limited by physical dormancy.

Insights into cryopreservation, recovery and genetic stability of medicinal plant tissues.

Several plant secondary metabolites are used in the production of different pharmaceuticals based on their biological activities. The conservation and sustainable use of medicinal plants is important for the industrial production of plant-based medicines. Different cryopreservation methods are used for long-term culture preservation, which allows fast regeneration of the preserved plant material with the maintenance of its primary original traits.

A Systematic Review on Food Recommender Systems for Diabetic Patients.

Recommender systems are currently a relevant tool for facilitating access for online users, to information items in search spaces overloaded with possible options. With this goal in mind, they have been used in diverse domains such as e-commerce, e-learning, e-tourism, e-health, etc. Specifically, in the case of the e-health scenario, the computer science community has been focused on building recommender systems tools for supporting personalized nutrition by delivering user-tailored foods and menu recommendations, incorporating the health-aware dimension to a larger or lesser extent.

Cryopreservation of seeds of the highly valued tropical timber species Swietenia mahagoni.

Background: Swietenia mahagoni wood is one of the most valuable in world trade and, as a result, natural populations have been decimated due to unsustainable harvesting. The decline in natural population levels is being exacerbated by climate change. In order to ensure the preservation of valuable genotypes, there is an urgent need to develop strategies to conserve the genetic diversity present within this species.

Exposure of Calophyllum antillanum seeds to liquid nitrogen delays seedling emergence and decreases leaf anthraquinones.

Background: Trees within the Calophyllum genus are multi-use trees that produce valuable wood, phytochemicals with a range of biological activities, and seed oil as a source of biodiesel. As a consequence of climate change, there is a need to develop strategies to preserve valuable plant genetic resources. Cryopreservation represents the most suitable option for the long-term storage of germplasm with minimal space and maintenance requirements.

Impacts of short-term water restriction on Pelibuey sheep: physiological and blood parameters.

One of the projected effects of climate change is a reduction in rainfall in certain regions of the world. Hence, the agricultural and livestock sectors will have to cope with increasing incidences of water shortage while still maintaining productivity levels to feed an ever increasing global population. This short communication reports on the effect of a 2-week water stress on Pelibuey sheep in Cuba.

Visibility, collaboration and impact of the Cuban scientific output on COVID-19 in Scopus.

Introduction: COVID-19 is a disease with worldwide impact that has fully caught attention of researchers. The Cuban scientific output, after one year of confronting this pandemic, has not been studied from a bibliometric perspective.

Objective: To characterize the output of original scientific articles and review articles on COVID-19 published by Cuban authors in the journals included in the Scopus bibliographic database, the collaborations in these publications and their impact, according to the citation of the research in the world literature.

Pineapple stem-derived bromelain based priming improves pepper seed protein reserve mobilization, germination, emergence and plant growth.

Pepper seeds are slow to germinate and emergence is often non-uniform and incomplete, reducing gains from this cash crop. This study investigated the effects of pineapple stem- derived protease (stem bromelain) based priming on pepper seed germination in relation to reserve mobilization (specifically, proteins and amino acids), germination, emergence and plant growth. These parameters were compared across two controls, (1) unsoaked seeds and (2) seeds soaked in deionized water, and seeds soaked in pineapple stem bromelain crude extract (treatment).

Exposure of Teramnus labialis (L.F.) Spreng Seeds to Liquid Nitrogen Does Not Affect Nutritional Status of Field Grown Adult Plants.

Background: Teramnus labialis (L.f.) Spreng is a potentially important legume species, and can be used as an animal feed and to enhance soil physicochemical characteristics.

COVID-19 and diabetes: Analysis of the scientific production indexed in Scopus.

Background And Aim: COVID-19 has affected the world population, with a higher impact among at-risk groups, such as diabetic patients. This has led to an exponential increase in the number of studies related to the subject, although their bibliometric characteristics are unknown. This article aims to characterize the world scientific production on COVID-19 and diabetes indexed in Scopus.

Biochemical and Genetic Responses of Tea ( (L.) Kuntze) Microplants under Mannitol-Induced Osmotic Stress In Vitro.

Osmotic stress is a major factor reducing the growth and yield of many horticultural crops worldwide. To reveal reliable markers of tolerant genotypes, we need a comprehensive understanding of the responsive mechanisms in crops. In vitro stress induction can be an efficient tool to study the mechanisms of responses in plants to help gain a better understanding of the physiological and genetic responses of plant tissues against each stress factor.

Experimental Analysis of Space Trusses Using Spacers of Concrete with Steel Fiber and Sisal Fiber.

Space trusses are structural systems, generally made of tubes, used worldwide because of their advantages in covering long-span roofs. In addition to having a low cost, the truss weight is relatively reduced. The load capacity of these structures depends also on the strength of their node connection.

Seed Cryostorage Enhances Subsequent Plant Productivity in the Forage Species Teramnus Labialis (L.F.) Spreng.

Background: Teramnus labialis is an herbaceous legume that serves as a source of carbohydrates and proteins for animals and humans, and is valued for its nitrogen contribution to soil. The benefits of this species are, however, limited by low seed availability, small seed size and low in situ seed germination levels, due to physical dormancy. Cryostorage has been shown to be beneficial for both seed storage and breaking physical dormancy in seeds of various species.

Euclidean distance can identify the mannitol level that produces the most remarkable integral effect on sugarcane micropropagation in temporary immersion bioreactors.

Plant scientists usually record several indicators in their abiotic factor experiments. The common statistical management involves univariate analyses. Such analyses generally create a split picture of the effects of experimental treatments since each indicator is addressed independently.

Early histological, hormonal, and molecular changes during pineapple (Ananas comosus (L.) Merrill) artificial flowering induction.

Natural flowering can cause serious scheduling problems in the pineapple (Ananas comosus) industry and increase harvest costs. Pineapple flowering is thought to be triggered by increased ethylene levels and artificial forcing of pineapple flowering is a common practice to promote flowering synchronisation. However, little is known about the early hormonal and molecular changes of pineapple flowering induction and development.

Data on antioxidant activity in grapevine (Vitis vinifera L.) following cryopreservation by vitrification.

Cryopreservation is used for the long-term conservation of plant genetic resources. This technique very often induces lethal injury or tissue damage. In this study, we measured indicators of viability and cell damage following cryopreservation and vitrification-cryopreservation in Vitis vinifera L.

Cryopreservation of sugarcane somatic embryos.

In this paper, we compared three vitrification-based cryopreservation techniques, viz. vitrification, encapsulation-vitrification and droplet-vitrification for cryopreserving sugarcane somatic embryos. Viability of somatic embryos was evaluated by measuring electrolyte leakage and by regrowth on recovery medium.

Pineapple [Ananas comosus (L.) Merr].

A procedure for pineapple [Ananas comosus (L.) Merr.] genetic transformation is described, which involves temporary immersion bioreactors (TIB) for selection of transgenic plants.

Improved technique for rapid and non-destructive in vitro differentiation between resistant and susceptible banana clones of Fusarium oxysporum f. sp. cubense.

Culture filtrates of Fusarium oxysporum f. sp. cubense were applied to field-grown banana leaves of susceptible and resistant clones.