Article
Environmental Sciences
Dan Han, Shuxin Tu, Zhihua Dai, Wuxing Huang, Wei Jia, Zicheng Xu, Huifang Shao
Summary: Exogenous selenium improves plant tolerance to abiotic stress, with both sodium selenite and sodium selenate showing positive effects on growth, photosynthesis, antioxidant system, osmotic substances, and stress-responsive gene expression under drought stress. Sodium selenate exhibited stronger promotion of root growth, photosynthetic pigments, and expression of stress-related genes compared to sodium selenite, indicating its potential as a more effective form of selenium for alleviating drought stress in plants.
Article
Engineering, Environmental
Louis-B Jugnia, Dominic Manno, Abraham Gomez Vidales, Sabahudin Hrapovic, Boris Tartakovsky
Summary: This study demonstrated that the efficiency of removing selenite and selenate in bioelectrochemical barriers is significantly higher compared to anaerobic biobarriers. By simultaneously operating multiple setups and adjusting operating parameters, enhanced removal of selenium species under bioelectrochemical conditions was achieved.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Horticulture
Patriciani Estela Cipriano, Matias Siueia Junior, Ray Rodrigues de Souza, Deivisson Ferreira da Silva, Rodrigo Fonseca da Silva, Valdemar Faquin, Maria Ligia de Souza Silva, Luiz Roberto Guimaraes Guilherme
Summary: This study evaluated the suitability of radish as an agricultural crop for selenium biofortification and investigated the effects of different selenium doses and sources on macronutrient accumulation and absorption. The results showed that applying selenium as selenate can increase potassium content without reducing radish production, making it an effective method for selenium biofortification.
SCIENTIA HORTICULTURAE
(2022)
Review
Horticulture
Edy Subroto, Mohamad Djali, Rossi Indiarto, Elazmanawati Lembong, Nur Baiti
Summary: Cocoa beans, which are used to produce chocolate and related products, are greatly influenced by microbial activity during post-harvest handling, especially fermentation, drying, and storage. This review explores the factors affecting each stage, the process mechanisms, and the latest technologies for improving cocoa bean quality. Fermentation plays a crucial role in determining cocoa bean quality as it involves various microorganisms that produce flavor compounds. Drying and storage processes are also important to maintain quality and prevent microbial contaminants. Various technologies, including the use of microbial starters during fermentation and vacuum drying and controlled atmosphere during storage, can enhance cocoa bean quality. However, controlling microbial activity remains a challenge, necessitating continuous development of post-harvest technology.
Review
Agronomy
Lucija Galic, Tomislav Vinkovic, Boris Ravnjak, Zdenko Loncaric
Summary: Selenium is an important micronutrient essential for most living organisms, with benefits for humans, animals, and plants. Selenium deficiency is a global issue, and agronomic biofortification is an effective strategy to increase selenium content in edible parts of plants.
Article
Crystallography
Gabriel L. Murphy, Philip Kegler, Eike M. Langer, Evgeny V. Alekseev
Summary: In this study, novel uranyl selenate and selenite compounds were synthesized using hydrothermal and slow evaporation methods, exhibiting different structural characteristics. The structures of these compounds were refined using single crystal X-ray diffraction, providing insights into the role of acidity in influencing the formation of specific structures, functional groups, and topologies in uranyl selenates and selenites.
Article
Plant Sciences
Ana Coelho Marques, Fernando C. Lidon, Ana Rita F. Coelho, Claudia Campos Pessoa, Diana Daccak, Ines Carmo Luis, Manuela Simoes, Paula Scotti-Campos, Ana Sofia Almeida, Mauro Guerra, Roberta G. Leitao, Ana Bagulho, Jose Moreira, Maria F. Pessoa, Paulo Legoinha, Jose C. Ramalho, Jose N. Semedo, Lourenco Palha, Catia Silva, Maria Manuela Silva, Karliana Oliveira, Isabel P. Pais, Fernando H. Reboredo
Summary: This study demonstrated that foliar application of selenium increased the selenium content in rice grains, and affected the levels of micro and macronutrients in the grains. The Ariete and Ceres varieties showed the highest enrichment of selenium.
Article
Food Science & Technology
Peixing Lin, Hongmei Di, Zhiqing Li, Yating Wang, Wenting Zhou, Shuya Huang, Chenlu Zhang, Huanxiu Li, Fen Zhang, Bo Sun
Summary: The study showed that irradiation (80 mu mol m(-2) s(-1)), particularly white and red light, is effective in extending the shelf life and maintaining the sensory and nutritional qualities of post-harvest baby mustard stored at 20 degrees C. White and red light irradiation had a greater impact on glucosinolate content and expression of metabolism-related genes compared to blue light irradiation.
JOURNAL OF FOOD SCIENCE
(2022)
Article
Environmental Sciences
Mingxing Qi, Yang Liu, Yanan Li, Min Wang, Nana Liu, Pornpimol Kleawsampanjai, Fei Zhou, Hui Zhai, Mengke Wang, Quang Toan Dinh, Rui Ren, Dongli Liang
Summary: This study found that selenate treatment had a significantly better detoxification effect on Cd in radish growth compared to selenite treatment, with increased translocation of Cd from roots to shoots at high Se application rates.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Sahar Ehsani, David James, Zahra Molaie Oskouie
Summary: The study developed a straightforward method for measuring two aquatic inorganic species of selenium, selenate (Se(VI)) and selenite (Se(IV)), which is important for selenium risk assessment. Total selenium measurement with graphite furnace atomic absorption spectrometry, chemical reduction of Se(IV) to H2Se, and re-measurement of total selenium after stripping H2Se were used. The method proved effective for determining the selenium species in natural and synthetic waters with high recovery rates and low detection limits.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2021)
Article
Agriculture, Multidisciplinary
Jia-Ying Gui, Shen Rao, Yuanyuan Gou, Feng Xu, Shuiyuan Cheng
Summary: The study found that in selenium-rich broccoli cultivation, selenium yeast is preferred for maximizing selenium uptake and nutrient accumulation; selenium yeast and selenite have different influences on the nutrient composition of broccoli florets, with selenium yeast increasing total phenolic acid and glucosinolate content, but reducing total flavonoid content.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2022)
Article
Plant Sciences
Dayang Safinah Nayan, Rozlaily Zainol, Che Fauziah Ishak, Arina Shairah Abdul Sukor, Martini Mohammad Yusoff
Summary: This study investigated the adsorption-desorption process of inorganic selenium in soils and found that soil texture was the main factor controlling selenium adsorption. Selenite was adsorbed more, while Se(VI) had a higher desorption rate. In the glasshouse experiment, plants treated with Se(VI) had higher selenium uptake, but higher dry matter and antioxidant activity were observed in green spinach treated with Se(IV).
JOURNAL OF PLANT NUTRITION
(2022)
Article
Environmental Sciences
Shigeshi Fuchida, Kosuke Tsuchiya, Chiharu Tokoro
Summary: The study found that low-crystalline magnesium oxide (LC-MgO) can effectively remove selenium, primarily through surface complexation on Mg(OH)2 formed by rapid hydration.
WATER AIR AND SOIL POLLUTION
(2021)
Article
Food Science & Technology
Lan Chen, Mengya Wang, Haifen Wang, Cong Zhou, Junwei Yuan, Xihong Li, Yanfang Pan
Summary: The aim of this study was to investigate the effects of different temperature and constant temperature (CT) storage environments on antioxidant ability and energy metabolism in post-harvest apple fruit. Compared to variable temperature (TF) groups, fruit stored in the CT environment showed higher quality attributes, suppressed respiration rate, and lower lipids and reactive oxygen species accumulation. The activities of antioxidant enzymes were also higher in the CT group. Moreover, the CT environment resulted in higher levels of antioxidants and better maintenance of energy status. Thus, constant temperature storage can delay fruit senescence through enhancing antioxidant capacities and maintaining higher energy status in apple fruit.
Article
Engineering, Environmental
B. Song, Z. Tian, R. D. van der Weijden, C. J. N. Buisman, J. Weijma
Summary: A high-rate process for biological selenate reduction to elemental selenium was developed, showing high selectivity and conversion efficiency, which may serve as the basis for a high-rate technology to remove and recover pure selenium from wastewater or process streams with high selectivity.
Article
Environmental Sciences
Paulo Ademar Avelar Ferreira, Guilherme Lopes, Natielo Almeida Santana, Carina Marchezan, Claudio Roberto Fonseca Sousa Soares, Luiz Roberto Guimaraes Guilherme
Summary: The study evaluated the impact of various amendments on Zn and Cd availability in contaminated soil, finding that limestone, calcium silicate, and red mud were effective in reducing metal mobility and positively affecting plant growth. Plants grown in soils amended with limestone and calcium silicate accumulated Zn in roots, while Cd was translocated to shoots. Red mud reduced Zn and Cd concentrations in leachate, resulting in a higher Zn:Cd ratio favorable for Zn absorption and transport.
Article
Environmental Sciences
Paula Godinho Ribeiro, Osnar Obede da Silva Aragao, Gabriel Caixeta Martins, Marcos Rodrigues, Jean Michel Pereira Souza, Fatima Maria de Souza Moreira, Yuncong C. Li, Luiz Roberto Guimaraes Guilherme
Summary: Hydrothermally-altered feldspar (HYP) has been found to effectively immobilize heavy metals in soil and act as a source of nutrients for plants, making it a promising technology for revegetation of contaminated sites. In addition to promoting plant growth, HYP also reduces the absorption of heavy metals by plants, showing potential for use in phytostabilization programs.
Article
Agriculture, Multidisciplinary
Maria Jessica Vieira dos Santos, Josimar Henrique de Lima Lessa, Mateus Belisario de Assis, Jessica Francisco Raymundo, Bruno Teixeira Ribeiro, Luiz Roberto Guimaraes Guilherme, Guilherme Lopes
Summary: This study evaluated the adsorption of selenate and selenite in two oxidic soils with different soil textures, as well as the competitive effects of phosphate and sulfate on selenium desorption. It was found that selenium adsorption varied depending on speciation, rate, and soil texture, with selenite showing greater adsorption than selenate. In the biofortification experiment with Panicum maximum cv. Mombaca, it was observed that increasing phosphate fertilization rates led to higher selenium content in the plant shoots.
CROP & PASTURE SCIENCE
(2022)
Article
Soil Science
Alvaro Jose Gomes de Faria, Sergio Henrique Godinho Silva, Leonidas Carrijo Azevedo Melo, Livia Botelho, Luiz Roberto Guimaraes Guilherme, Nilton Curi
Summary: This study compared the elemental contents obtained via pXRF with the traditional acid-digestion-based methods in tropical soils. The results showed that pXRF can accurately determine the contents of Ca, Cu, Fe, Mn, Cr, and Ni in these soils.
Article
Plant Sciences
Ruby Vega-Ravello, Maria Belen Romero-Poma, Cynthia de Oliveira, Luiz Roberto Guimaraes Guilherme, Guilherme Lopes
Summary: This study aimed to investigate the effects of soil selenium application on the selenium content and tolerance of quinoa plants under water deficit conditions. The results showed that appropriate selenium application increased the grain dry mass and selenium content of quinoa grains, and improved the photosynthetic rate and antioxidant activity of quinoa under water deficit conditions.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2023)
Article
Environmental Sciences
Lais L. Silva, Marina M. Feitosa, Emerson F. Vilela, Guilherme Lopes, Luiz R. G. Guilherme, Yuri L. Zinn
Summary: High levels of arsenic were found in soils developed from ultramafic rocks in Brazil, but the arsenic was mainly contained in resistant phases and bound to secondary iron oxides. The availability of arsenic varied among soils, with some soils showing low availability and others showing high availability. Generally, the high arsenic contents in these soils do not raise immediate concerns, but the release of arsenic in groundwater and surface water deserves further investigation.
ENVIRONMENTAL RESEARCH
(2023)
Article
Plant Sciences
Roniel Geraldo avila, Paulo Cesar Magalhaes, Luciana Cristina Vitorino, Layara Alexandre Bessa, Kamila Rezende Dazio de Souza, Raphael Barros Queiroz, Adriano Jakelaitis, Marconi Batista Teixeira
Summary: Chitosan application has positive effects on sorghum plants under water deficit conditions by increasing stomatal conductance, transpiration, nutrient and protein contents, photosynthetic rate, and yield.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2023)
Article
Geochemistry & Geophysics
Sergio Henrique Godinho Silva, Diego Ribeiro, Thais Santos Branco Dijair, Fernanda Magno Silva, Anita Fernanda dos Santos Teixeira, Renata Andrade, Marcelo Mancini, Luiz Roberto Guimaraes Guilherme, Nilton Curi
Summary: This study aims to evaluate the chemical composition of different quartz varieties using a portable X-ray fluorescence (pXRF) spectrometer and relate them to soil attributes. Hyaline quartz had the highest SiO2 content and the lowest contents of other elements. Random Forest algorithm identified SiO2, oxides, chlorine, sulfur, phosphorus pentoxide, and potassium oxide as the main components for discriminating quartz varieties. pXRF provided enhanced information on the chemical characterization of quartz varieties without generating chemical pollutants.
Article
Food Science & Technology
Maila Adriely Silva, Gustavo Ferreira de Sousa, Gary Banuelos, Douglas Amaral, Patrick H. Brown, Luiz Roberto Guimaraes Guilherme
Summary: This study aimed to evaluate the effect of different selenium application methods (soil or foliar) and sources (organic or inorganic) on the total selenium content and speciation in selenium-enriched soybean grains. The results showed that all treatments with inorganic selenium increased the selenium content in grains compared to the control. More than 80% of the total selenium was present as selenomethionine (SeMet), and the speciation was influenced by the selenium source and application method. The treatments using inorganic selenium, applied via soil or foliar, produced the highest content of SeMet in soybean grains. Finally, the preservation of selenium species in products derived from soybean grains should be evaluated.
Article
Food Science & Technology
Patriciani Estela Cipriano, Rodrigo Fonseca da Silva, Cynthia de Oliveira, Alexandre Boari de Lima, Fabio Aurelio Dias Martins, Gizele Celante, Alcindo Aparecido dos Santos, Marcos Vinicio Lopes Rodrigues Archilha, Marcos Felipe Pinatto Botelho, Valdemar Faquin, Luiz Roberto Guimaraes Guilherme
Summary: Agronomic biofortification with selenium can effectively increase the nutritional intake and grain yield of sorghum. Sodium selenate is more efficient compared to organoselenium compounds, but acetylselenide has a positive effect on the antioxidant system.
Article
Plant Sciences
Maila Adriely Silva, Gustavo Ferreira de Sousa, Gustavo Avelar Zorgdrager Van Opbergen, Guilherme Gerrit Avelar Zorgdrager Van Opbergen, Ana Paula Branco Corguinha, Jean Michel Moura Bueno, Gustavo Brunetto, Jose Marcos Leite, Alcindo Aparecido dos Santos, Guilherme Lopes, Luiz Roberto Guimaraes Guilherme
Summary: This study investigated the effects of selenium foliar application combined with a multi-nutrient fertilizer on soybean. The results showed that grain yield of soybean increased with the application of multi-nutrient fertilizer, while selenium rates linearly increased selenium contents up to 80 g Se ha(-1), regardless of the use of multi-nutrient fertilizer. The two genotypes (58I60 Lanca and M5917) had critical thresholds of 1.0 and 3.0 mg kg(-1) for grain selenium content, respectively. Selenium application promoted higher contents of K, P, and S in grains of genotype Lanca and higher contents of Mn and Fe in grains of genotype M5917. The findings highlight the importance of considering different fertilization strategies and genotypic variations when assessing the effects of selenium on soybean yield and grain quality.
Article
Agronomy
Yuri Takis Botelho da Costa, Gabriel Caixeta Martins, Paula Godinho Ribeiro, Ediu Carlos da Silva Jr, Markus Gastauer, Cecilio Frois Caldeira, Rafael Silva Guedes, Silvio Junio Ramos
Summary: This study assessed the soil chemical attributes and leaf nutritional contents of two native plant species grown in an iron waste pile undergoing rehabilitation. The soils had low levels of phosphorus, potassium, calcium, magnesium, and boron regardless of the rehabilitation stage. At the advanced stage, there was a tendency of organic matter accumulation which was correlated with other soil nutrients. The two studied species had distinct leaf nutrient contents, indicating different nutritional requirements. Overall, the rehabilitation procedures were shown to improve soil chemical attributes.
COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS
(2023)
Article
Plant Sciences
Jucelino de Sousa Lima, Otavio Vitor Souza Andrade, Leonidas Canuto dos Santos, Everton Geraldo de Morais, Gabryel Silva Martins, Yhan S. Mutz, Vitor L. Nascimento, Paulo Eduardo Ribeiro Marchiori, Guilherme Lopes, Luiz Roberto Guimaraes Guilherme
Summary: Water deficit inhibits plant growth and leads to overproduction of reactive oxygen species (ROS), causing oxidative stress. Iodine (I) has been shown to enhance the antioxidant defense system and improve photosynthesis under adverse conditions. In this study, soybean plants exposed to potassium iodide (KI) concentrations of 10 and 20 .mol L-1 showed increased biomass, improved gas exchange, and reduced lipid peroxidation under water deficit. However, higher KI concentrations negatively affected photosynthetic efficiency, biomass accumulation, and partition under well-irrigated conditions.
Article
Plant Sciences
Gustavo Ferreira de Sousa, Maila Adriely Silva, Mariana Rocha de Carvalho, Everton Geraldo de Morais, Pedro Antonio Namorato Benevenute, Gustavo Avelar Zorgdrager Van Opbergen, Guilherme Gerrit Avelar Zorgdrager Van Opbergen, Luiz Roberto Guimaraes Guilherme
Summary: This study aimed to investigate the role of Se supply in improving osmotic stress tolerance in coffee seedlings while also evaluating the best timing for Se application. Results demonstrated that osmotic stress promoted mild stress in the coffee plants and led to starch degradation. Seedlings that received foliar Se application 8 days before the stress exhibited higher antioxidant enzyme activity compared to the control group.
Article
Forestry
Mariana Aline Silva Artur, Jose Marcio Rocha Faria, Anderson Cleiton Jose, Jean Marcel de Sousa Lira, Kamila Rezende Dazio de Souza, Fernanda Carlota Nery, Amauri Alves de Alvarenga
Summary: The efficiency of methods to overcome primary dormancy and biochemical processes associated with germination of Erythrina falcata Benth seeds were investigated. Mechanical scarification with sandpaper was found to be an efficient method for breaking seed dormancy. During germination, there was a decrease in H2O2 and lipid peroxidation, and an increase in antioxidant enzyme activity. The total protein content decreased.
