Percorrer por autor "Bagheri, Maryam"
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- Challenges in pea breeding for tolerance to drought: status and prospectsPublication . Bagheri, Maryam; Santos, Carla S.; Rubiales, Diego; Vasconcelos, Marta W.Drought is increasingly frequent in the context of climate change and is considered a major constraint for crop yield. Water scarcity can impair growth, disturb plant water relations, and reduce water use efficiency. Pea (Pisum sativum) is a temperate grain legume rich in protein, fiber, micronutrients, and bioactive compounds that can benefit human health. In reducing pea yield due to drought, the intensity and duration of stress are critical. This review describes several drought resistance mechanisms in pea based on morphology, physiology, and biochemical changes during/after the water deficit period. Drought tolerance of pea can be managed by adopting strategies such as screening, breeding, and marker-assisted selection. Therefore, various biotechnological approaches have led to the development of drought-tolerant pea cultivars. Finally, the main objective of the current research is to point out some useful traits for drought tolerance in peas and also, mention the methods that can be useful for future studies and breeding programmes.
- Discriminating Fe deficient soybean plants by fourier transform infrared spectroscopyPublication . Bagheri, Maryam; Santos, Carla S.; Sousa, Clara; Vasconcelos, Marta W.
- Discriminating Fe deficient soybean plants by fourier transform infrared spectroscopyPublication . Bagheri, Maryam; Santos, Carla S.; Sousa, Clara; Vasconcelos, Marta W.Lentils (Lens culinaris L.) are among the oldest crops cultivated by humans. They are excellent sources of minerals, protein/amino acids, fatty acids, fibers, carbohydrates, and phytochemicals. Compared to other legumes, lentils have a faster preparation time, low phytic acid content, high arginine, and total phenolic content of antioxidant flavonoids. Besides, their low glycemic index helps avoid peaks in blood glucose, improving metabolic control. Although lentils have these benefits, their consumption in Portugal is lower than desirable, highlighting the need for greater promotion of this legume and the development of new value-added lentil-based snacks.
- Genome-wide association studies of mineral content in peaPublication . Bagheri, Maryam; Santos, Carla S.; Rubiales, Diego; Wohor, Osman Zakaria; Vasconcelos, Marta W.Pea (Pisum sativum) is a nutrient-rich crop that provides essential minerals like phosphorus, calcium, magnesium, and iron, supporting human health. Improving its mineral content through genetics can boost its nutritional value and help combat micronutrient deficiencies. This study aimed to investigate the genetic basis of mineral accumulation in pea seeds using a genomewide association study (GWAS). The analysis was conducted on 324 diverse, previously genotyped Pisum accessions, including P. sativum, P. fulvum, P. abyssinicum, and several P. sativum subspecies.
- High-throughput phenotyping of pea physiological traits for drought stress tolerancePublication . Bagheri, Maryam; Temme, Andries; Zedde, Rick van de; Rubiales, Diego; Santos, Carla S.; Vasconcelos, Marta W.
- Optimizing pea biomass estimation: unveiling insights from multimodal image-based phenotyping under drought conditionsPublication . Bagheri, Maryam; Lertngim, Narawitch; Driever, Steven M.; Zedde, Rick van de; Rubiales, Diego; Santos, Carla S.; Vasconcelos, Marta W.
- Predicting iron deficiency and oxidative stress in glycine max through Fourier transform infrared spectroscopy in a time-course experimentPublication . Santos, Carla S.; Sousa, Clara; Bagheri, Maryam; Pinho, Simão; Vasconcelos, MartaAims: The excessive use of fertilizers is a problem in current agricultural systems, and sustainable farming practices, including precision agriculture, demand the use of new technologies to manage plant stress at an early stage. To sustainably manage iron (Fe) fertilization in agricultural fields, it is urgent to develop early detection methods for Fe deficiency, and linked oxidative stress, in plant leaves. Herein, the potential of using Fourier Transform Infrared (FTIR) spectroscopy for Fe deficiency and oxidative stress detection in soybean plants was evaluated.Methods: After a period of two weeks of hydroponic growth under optimum conditions, soybean plants were grown under Fe-sufficient (Fe+) and Fe-deficient (Fe–) hydroponic conditions for four weeks. Sampling occurred every week, infrared (IR) spectra were acquired and biological parameters (total chlorophyll, anthocyanins and carotenoids concentration, and ABTS and DPPH free radical scavenging ability), mineral concentrations, and the Fe-related genes’ expression - FRO2- and IRT1-like - were evaluated. Results: Two weeks after imposing Fe deficiency, plants displayed decreased antioxidant activity, and increased expression levels of FRO2- and IRT1-like genes. Regarding the PLS models developed to estimate the biological parameters and mineral concentrations, satisfactory calibration models were globally obtained with R2C from 0.93 to 0.99. FTIR spectroscopy was also able to discriminate between Fe + and Fe– plants from an early stage of stress induction with 96.3% of correct assignments. Conclusion: High reproducibility was observed among the different spectra of each sample and FTIR spectroscopy may be an early, non-invasive, cheap, and environmentally friendly technique for IDC management.
- Unraveling the impact of drought stress on nutritional parameters and defense response of pea genotypesPublication . Bagheri, Maryam; Rubiales, Diego; Santos, Carla S.; Vasconcelos, Marta W.Drought stress negatively affects plant growth, triggering morphological, physiological, and biochemical changes that reduce productivity. Identifying drought-tolerant cultivars is essential for enhancing agricultural resilience and ensuring food security. This study evaluated the drought tolerance of three pea genotypes: Pisum sativum var. humile, Pisum sativum var. arvense, and a wild relative, Pisum fulvum.