Browsing by Author "Duarte, Rafael D. C."
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- Common bean (phaseolus vulgaris l.) mineral profile is negatively affected by elevated atmospheric carbon dioxide (CO2)Publication . Duarte, Rafael D. C.; Silva, Marta Nunes da; Quirós-Vargas, Juan; Muller, Onno; Vasconcelos, Marta W.
- Common bean (Phaseolus vulgaris L.) nutritional profile & soil microbiome community is affected by elevated atmospheric carbon dioxide (CO2)Publication . Duarte, Rafael D. C.; Silva, Marta Nunes da; Quirós-Vargas, Juan; Muller, Onno; Vasconcelos, Marta W.
- Effects of short-term exposure to elevated atmospheric CO2 on yield, nutritional profile, genetic regulatory pathways, and rhizosphere microbial community of common bean (Phaseolus vulgaris)Publication . Duarte, Rafael D. C.; Silva, Marta Nunes da; Fortunato, Gianuario; Quirós-Vargas, Juan; Muller, Onno; Manaia, Célia M.; Vasconcelos, Marta W.Aim: Legumes are vital to agroecosystems and human nutrition, yet climate change is compromising their nutritional value. This study aims to assess how a one-month exposure to elevated CO2 (eCO2) impacts biomass yield, mineral profile, gene expression, and the soil microbiome of common bean plants (Phaseolus vulgaris L.). Methods: Phaseolus vulgaris L. was grown in field conditions under ambient CO2 (control, aCO2, 400 ppm) or eCO2 (600 pm) from the start of pod filling until plant maturity and analyzed for several morphophysiological and nutritional parameters. Results: Compared with aCO2, eCO2 exposure significantly increased plant and grain biomass, with fluctuations in mineral accumulation. Notably, it decreased grain iron and zinc concentrations, two essential microelements related to food security, by 59% and 49%, respectively. Additionally, grain phenolic content decreased by up to 41%. Genes involved in mineral uptake (such as FER1, ZIP1, and ZIP16), plant response to stress (TCR1, TCR2, and HLH54) and symbiosis with soil microorganisms (NRMAP7 and RAM2) seemed to regulate effects. Microbiome analysis supported these findings, with an increase in the relative abundance of Pseudomonadota by 10%, suggesting eCO2-induced alterations in microbial community structure. Conclusions: This research demonstrates how eCO2 impacts the nutritional quality of common beans regarding micronutrients and phenolic content, while also affecting soil microbiome composition. Highlighting the value of shorter term eCO2 treatments, the findings provide early insights into immediate plant responses. This underscores the need for crop improvement strategies to address nutrient deficiencies that may arise under future eCO2 conditions.
- Intraspecific effects of short-term elevated atmospheric co2 in yield and nutritional profile of phaseolus vulgarisPublication . Duarte, Rafael D. C.; Silva, Marta Nunes da; Quirós-Vargas, Juan; Muller, Onno; Vasconcelos, Marta WiltonLegumes are key contributors of essential nutrients for human health, namely iron (Fe) and zinc (Zn), but they are one of the most sensitive plant families to elevated concentrations of atmospheric CO2 (eCO2), a major threat to global agriculture and human nutrition. Therefore, unravelling the effects underlying eCO2 responses on biomass yield and nutritional value is of utmost importance to anticipate potential negative effects on human nutrition and expedite mitigation strategies.
- Labrys portucalensis F11 efficiently degrades Di-(2-ethylhexyl) phthalatePublication . Moreira, Irina S.; Duarte, Rafael D. C.; Geraldo, Rafaela A. F.; Castro, Paula M. L.
- Labrys portucalensis F11 efficiently degrades Di-(2-ethylhexyl) PhthalatePublication . Moreira, Irina S.; Duarte, Rafael D. C.; Geraldo, Rafaela A. F.; Castro, Paula M. L.
- Legume responses and adaptations to nutrient deficienciesPublication . Duarte, Rafael D. C.; Santos, Carla S.; Vasconcelos, Marta W.Legumes have unique mechanisms to respond to nutrient deficiencies that can be considered as important advantages for agricultural purposes. The preponderance of plant-based protein is on the rise, and the market value of protein crops is expected to be worth billions by 2025. To match the global demand for plant-based products, crops productivity must be ensured; however, this might be impaired either by environmental or anthropogenic pressures that lead to soil nutrient disturbance. The responses activated by legumes to nutrient deficiencies and the mechanisms they utilize to adapt to such conditions will be discussed in this chapter. The study of these factors enables breeding programs specific for legumes and crop improvement. Understanding legumes responses also allows for a better management of agricultural practices and the adoption ofmore sustainablemethods. It is important to reflect on the impact of climate change and intensive farming on food quality and on the future of agriculture, and this chapter contributes with important facts about the role of legumes in our current scenario.
- More than a meat- or synthetic nitrogen fertiliser-substitute: a review of legume phytochemicals as drivers of ‘One Health’ via their influence on the functional diversity of soil- and gut-microbesPublication . Duarte, Rafael D. C.; Iannetta, Pietro P. M.; Gomes, Ana M.; Vasconcelos, Marta W.Legumes are essential to healthy agroecosystems, with a rich phytochemical content that impacts overall human and animal well-being and environmental sustainability. While these phytochemicals can have both positive and negative effects, legumes have traditionally been bred to produce genotypes with lower levels of certain plant phytochemicals, specifically those commonly termed as ‘antifeedants’ including phenolic compounds, saponins, alkaloids, tannins, and raffinose family oligosaccharides (RFOs). However, when incorporated into a balanced diet, such legume phytochemicals can offer health benefits for both humans and animals. They can positively influence the human gut microbiome by promoting the growth of beneficial bacteria, contributing to gut health, and demonstrating anti-inflammatory and antioxidant properties. Beyond their nutritional value, legume phytochemicals also play a vital role in soil health. The phytochemical containing residues from their shoots and roots usually remain in-field to positively affect soil nutrient status and microbiome diversity, so enhancing soil functions and benefiting performance and yield of following crops. This review explores the role of legume phytochemicals from a ‘one health’ perspective, examining their on soil- and gut-microbial ecology, bridging the gap between human nutrition and agroecological science.