Article
Engineering, Environmental
Kai-Yue Chen, Puu-Tai Yang, Hsin-Fang Chang, Kuo-Chen Yeh, Shan-Li Wang, Guillaume Echevarria
Summary: The study found that gallium speciation in soil-rice plant systems varied during rice cultivation, affecting the availability of gallium to rice plants.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Yan Wang, Junjie Li, Yue Xu, Timothy F. M. Rodgers, Meijun Bao, Feng Tan
Summary: Rice and maize, two main crops in Northeast China, displayed different OPE concentrations in their soil-crop systems. The OPE concentrations were higher in paddy soil compared to maize soil. The study also indicated that other processes like growth dilution play a significant role in understanding OPE levels in plants.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Soil Science
Bingshen Jiang, Jianlin Shen, Minghong Sun, Yajun Hu, Wenqian Jiang, Juan Wang, Yong Li, Jinshui Wu
Summary: Agronomic practices have a significant impact on soil phosphorus availability and use efficiency, with proper fertilizer application and rice cultivation management leading to improved phosphorus availability and utilization efficiency in the soil.
Article
Environmental Sciences
Jianan Liu, Jinjin Cheng, Chunli Zhou, Liya Ma, Xiaolong Chen, Yong Li, Xing Sun, Xiaolong Yan, Renhua Geng, Qun Wan, Xiangyang Yu
Summary: In this study, the uptake, translocation and subcellular distribution of neonicotinoid insecticides, triazole fungicides, and sulfonylurea herbicides in rice plants were investigated. It was found that neonicotinoids were mainly concentrated in the leaves, triazoles were mainly concentrated in the roots, and sulfonylurea herbicides were first transported upward through the apoplastic pathway. The subcellular distribution of pesticides was influenced by their molecular structures.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Wenting Chi, Guojun Chen, Shiwen Hu, Xiaomin Li, Kuan Cheng, Qi Wang, Bingqing Xia, Yang Yang, Yibing Ma, Tongxu Liu
Summary: Paddy fields located around estuaries face the issue of seawater intrusion, and the impact of salinity levels on Cd accumulation in rice grains is still unclear. Pot experiments were conducted to investigate the effects of different salinity levels on Cd availability and uptake by rice plants. The results showed that higher salinity levels increased Cd availability and uptake in rice roots and grains, mainly due to competition for binding sites by cations and the formation of Cd complexation with anions. The study highlights the importance of considering food safety in rice cultivation near estuaries.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Ecology
Chuan Chen, Lingyan Li, Yanfen Wang, Xiuzhu Dong, Fang-Jie Zhao
Summary: Microorganisms are involved in the biogeochemical cycling of arsenic (As), transforming As between different forms and oxidation states. Methylation of As is enhanced by microbes in paddy soil, resulting in the formation of dimethylarsenic (DMAs), which can cause rice straighthead disease. In this study, we found that methanogenic archaea, particularly Methanomassiliicoccus, play a crucial role in demethylating pentavalent DMAs.
Article
Plant Sciences
Kanako Kusa, Mihoko Moriizumi, Satoru Hobara, Mikoto Kaneko, Shingo Matsumoto, Junko Kasuga, Noriharu Ae
Summary: Research shows that cultivation of paddy rice under potassium and silicic acid deficient conditions can enhance carbon accumulation in soil through mineral weathering, which releases potassium, silicic acid, and aluminum. Active aluminum bound to organic matter plays a key role in persistent soil carbon production, with plants absorbing silicic acid contributing to increased active aluminum levels.
SOIL SCIENCE AND PLANT NUTRITION
(2021)
Article
Agronomy
Zhenhui Jiang, Hao Cui, Jingdong Lin, Chaoyang Mo, Yizhen Liu, Yongfu Li, Jingping Yang
Summary: A two-year microplot experiment was conducted to examine the effects of incorporating spring maize into paddy fields on the utilization of nitrogen (N) fertilizer by late rice. The results showed that the SM-LR system had higher grain yields and total N use of late rice compared to the ER-LR system. However, there was no difference in fertilizer-N use in late rice between the two cropping systems, and the increased total N uptake by late rice was attributed to the utilization of soil-N. Further experiments on soil residual 15N revealed a higher amount of soil residual 15N in the spring maize season, but it had negligible contribution to the N utilization in late rice.
FIELD CROPS RESEARCH
(2023)
Article
Multidisciplinary Sciences
Lijuan Sun, Ke Song, Lizheng Shi, Dechao Duan, Hong Zhang, Yafei Sun, Qin Qin, Yong Xue
Summary: The addition of S fertilizer (S-0) increased rice plant biomass and iron plaque formation, reduced Cd concentration in rice grains, and affected the bacterial community in rice rhizosphere soil. This suggests that promoting specific bacterial groups in the soil through S-0 application may play a role in reducing Cd risk in the soil-rice system.
SCIENTIFIC REPORTS
(2021)
Article
Agriculture, Multidisciplinary
Yuhua Tian, Xu Zhao, Bin Yin, Ke Zeng, Xiaoyuan Yan
Summary: The direct canopy uptake of atmospheric reactive nitrogen (ARN) in rice paddy ecosystems is an important process, but its magnitude has been unclear. In this study, researchers used a water-culture rice-growing system and a 15N tracer to investigate the canopy uptake of ARN. They found that the gross ARN uptakes during vegetative and reproductive growth were 23.1 and 38.2 kg N • ha-1 respectively, and the net gain of ARN over the entire growing season was 34.3 kg N • ha-1, much higher than the current estimates of dry N deposition.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2022)
Article
Multidisciplinary Sciences
Aye Myint Myat Soe, Aye Aye Mu, Kazuhiro Toyoda
Summary: The presence of potentially toxic metal(loid)s in white rice grains purchased from farmers near Yangon was determined, and the concentrations of certain metals (e.g. As, Ni) were found to be within the average range. The mean concentrations of Pb, Cd, and Cr were lower than the maximum allowable levels. The study suggests that consumers of Yangon rice from paddy fields without groundwater irrigation may need to be concerned about the potential risk of Ni intake besides arsenic.
Article
Environmental Sciences
Tao Sun, Liding Chen, Ranhao Sun
Summary: This study aims to derive an applicable method to improve albedo estimation over paddy rice fields. Multiple spectral albedos were calculated and new narrowband to broadband conversion coefficients were derived. The method showed high consistency with field observations.
Article
Soil Science
Rodolfo Souza, Jun Yin, Salvatore Calabrese
Summary: Optimizing drainage timing can maximize the reduction of methane emissions from rice paddies, with organic amendments enhancing the effectiveness. Experiments show that for organically amended fields, the optimal drainage timing is earlier compared to non-amended fields, resulting in an average reduction of methane emissions by about 45% and 35%, respectively.
Article
Soil Science
Hao Chen, Yu Wang, Jiahui Yuan, Wenbin Zhu, Guanglei Chen, Shenqiang Wang
Summary: This study found that reducing phosphorus (P) fertilizer application in a rice-wheat rotation system did not significantly impact crop biomass. The PW treatment did not decrease crop total P, root iron (Fe)-plaque P, and soil Olsen-P during the rice growth stages, while the P0 treatment resulted in substantial reductions in these components.
Article
Agronomy
Margi Asih Maimunah, Valensi Kautsar, Putu Oki Bimantara, Samuel Munyaka Kimani, Ren Torita, Keitaro Tawaraya, Hideki Murayama, Sri Nuryani Hidayah Utami, Benito Heru Purwanto, Weiguo Cheng
Summary: The study showed that higher weeding frequencies (6WF and 8WF) in an organic rice field can effectively reduce weed numbers and support rice growth, especially in terms of nitrogen uptake competition with weeds. Compared to lower weeding frequencies, higher weeding frequencies can significantly increase rice yield and nitrogen uptake.
Article
Chemistry, Analytical
Cristian Killing Pereira, Vinicius Machado Neves, Graciela Marini Hidrich, Henrique Faccin, Dirce Pozebon, Valderi Luiz Dressler
Summary: In this study, laser ablation inductively coupled plasma mass spectrometry (LAICP-MS) was used to determine and image the concentrations of various elements in white, parboiled, and brown rice. The distribution of these elements within the grains was evaluated, and it was found that they were not evenly distributed.
BRAZILIAN JOURNAL OF ANALYTICAL CHEMISTRY
(2023)
Article
Environmental Sciences
Altevir Rossato Viana, Bruna Godoy Noro, Daniel Santos, Katianne Wolf, Yasmin Sudatti Das Neves, Rafael Noal Moresco, Aline Ferreira Ourique, Erico Marlon Moraes Flores, Cristiano Rodrigo Bohn Rhoden, Luciana Maria Fontanari Krause, Bruno Stefanello Vizzotto
Summary: This study investigated the phytochemical compositions and biological activities of Vassobia breviflora extract. The extract exhibited excellent antioxidant and antimicrobial activities, as well as cytotoxic effects against various tumor cells. Moreover, it also increased the production of reactive oxygen species.
JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH-PART A-CURRENT ISSUES
(2023)
Article
Chemistry, Analytical
Felipe A. Silva, Beatriz R. Rigui, Cristian R. Andriolli, Erico M. M. Flores, Paola A. Mello, Rochele S. Picoloto
Summary: A miniaturized liquid-liquid extraction (LLE) method was proposed for pre-concentration of Na, K, Ca, and Mg in crude oil. The method showed no statistical difference compared to the reference values, with relative standard deviations lower than 6%. The proposed miniaturized LLE method presents several advantages, such as ease-of-use, high throughput, and low limits of quantification, making it an environmentally friendly and cost-effective alternative for routine analyses.
Editorial Material
Chemistry, Analytical
Valderi Luiz Dressler
BRAZILIAN JOURNAL OF ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Jaime S. Mandlate, Alessandra S. Henn, Paola A. Mello, Erico M. M. Flores, Juliano S. Barin, Fabio A. Duarte
Summary: A simple and fast sample preparation method called microwave-induced combustion in disposable vessels (MIC-DV) was developed for Cl and S determination in crude oil using ICP-OES. The method allows efficient digestion of up to 10 mg of crude oil per cycle, reaching a total sample mass of 50 mg.
ANALYTICA CHIMICA ACTA
(2023)
Article
Environmental Sciences
Jorge Osorio-Martinez, Luis F. F. Silva, Erico M. M. Flores, Gabriel T. T. Druzian, Jesus Olivero-Verbel
Summary: This study assessed the concentrations and toxicity of potentially toxic elements (PTEs) in urban dust from Barranquilla, Colombia. The results showed that the PTEs in the dust had negative effects on the physiological parameters of Caenorhabditis elegans, indicating that it can be used as a sensitive organism for warning systems related to biota risks associated with air pollution.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Multidisciplinary Sciences
Rosana Santos de Moraes, Paulo Carteri Coradi, Marcela Trojahn Nunes, Marisa Menezes Leal, Edson Irineu Muller, Paulo Eduardo Teodoro, Erico Marlon Moraes Flores
Summary: Drying rice in a silo-dryer-aerator using single-layer loading at low temperatures resulted in uniform drying. This study evaluated the physical, physicochemical, and morphological quality of rice grain cultivars in the lower and upper layers of the silo-dryer-aerator. The results showed that drying rice in silo-dryer-aerator attenuated the moisture diffusivity in the grains and preserved the physicochemical constituents and morphology of starch, especially in the lower layers throughout the 2-month drying. The Guri INTA and BRS Pampeira cultivars exhibited the highest resistance to drying and had the most uniform final quality.
Article
Chemistry, Analytical
Rebecca Sim, Joerg Feldmann, Dagmar B. Stengel, Asta H. Petursdottir
Summary: This study investigates the origins of arsenosugars in common seaweed species. The results suggest that arsenosugars are a by-product of normal biological activity, rather than a detoxification pathway for inorganic arsenic.
ENVIRONMENTAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Zuzana Gajdosechova, Patricia Grinberg, Kevin Kubachka, Mesay Wolle, Andrea Raab, Joerg Feldmann, Rebecca Sim, asta H. Petursdottir, Tomas Matousek, Stanislav Musil, Ben Wozniak, Stephen Springer, Nausheen W. Sadiq, Hakan Gurleyuk, Calvin H. Palmer, Indumathi Pihillagawa Gedara, Zoltan Mester
Summary: The study aimed to investigate the issues in arsenic speciation analysis in biological matrices and validate the analytical methods. An international round-robin study showed that inadequate verification of the analyte's mass fractions in calibration standard solutions could introduce significant biases. The choice of extraction method had minimal impact on quantitation of arsenic species in plant and terrestrial biological tissues, but following a prescribed extraction method resulted in reduced uncertainties in complex samples such as marine animal tissues.
ENVIRONMENTAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Georg Raber, Sonja Weishaupt, Fabian Lappi, Michael Stiboller, Joerg Feldmann
Summary: A new analytical method using gas chromatography-mass spectrometry (GC-MS) was developed for the quantitative determination of arsenic-containing hydrocarbons (AsHCs) in marine samples. The novel method allows for compound independent quantification using triphenylarsine (TPA) as a commercially available standard, expanding the screening application for these toxic compounds in the environment.
ENVIRONMENTAL CHEMISTRY
(2023)
Article
Biochemical Research Methods
Silvia Wehmeier, Marc Preihs, Julia Dressler, Andrea Raab, Joerg Feldmann
Summary: Rice, a staple food, is known for its accumulation of inorganic arsenic (iAs), a known carcinogen. Field-deployable kits designed for water testing can screen iAs in rice, ensuring food safety without the need for laboratory analysis. By adapting the extraction process to include Cola, the field method becomes safer, cost-effective, and easier to handle. Testing on Austrian rice products showed that most samples were within the European Union's iAs limits.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Gustavo Rossato Bitencourt, Fabio Andrei Duarte, Valderi Luiz Dressler, Rodrigo Cordeiro Bolzan, Erico Marlon de Moraes Flores, Paola Azevedo Mello
Summary: A single method using chemical vapor generation coupled with microwave-induced plasma optical emission spectrometry was developed for the determination of As and Hg in dietary supplements. The method complied with the maximum concentration requirements set by the United States Pharmacopeia and showed no statistical difference compared to comparative methods. The proposed method can be considered an alternative for the quality control of As and Hg in dietary supplements.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2023)
Article
Chemistry, Analytical
Gustavo Rossato Bitencourt, Fabio Andrei Duarte, Valderi Luiz Dressler, Rodrigo Cordeiro Bolzan, Erico Marlon de Moraes Flores, Paola Azevedo Mello
Summary: A single method was developed for the determination of As and Hg in dietary supplements using CVG-MIP OES and MSIS. The optimized MSIS setup improved the detection limit for As and Hg, making it suitable for the limit set by the United States Pharmacopeia.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2023)
Article
Chemistry, Analytical
Viktoria Mueller, Larissa Cristine Andrade Costa, Filipe Soares Rondan, Eleonora Matic, Marcia Foster Mesko, Andrew Kindness, Joerg Feldmann
Summary: This study analyzed ski waxes, snowmelts, and soil samples from family skiing areas in Alpine locations to investigate the distribution of PFAS in the environment. The researchers found a diverse pattern of PFAS in the analyzed media, with higher levels in skiing areas compared to non-skiing areas. Snowmelt was dominated by short-chained PFAS, while soil and wax contained both short and long-chained PFAS. The study highlights the importance of non-targeted analysis and extractable organic fluorine (EOF) for a better understanding of PFAS distribution.
ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
(2023)
Article
Food Science & Technology
Vanessa Bordin Viera, Natieli Piovesan, Renius De Oliveira Mello, Juliano Smanioto Barin, Aline De Oliveira Fogaca, Cezar Augusto Bizzi, Erico Marlon De Moraes Flores, Ana Carolina Dos Santos Costa, Diego Elias Pereira, Juliana Kessia Barbosa Soares, Ernesto Hashime Kubota
Summary: This study determined the antioxidant activity of red onion peel extract using ultrasound extraction, and found that different ultrasound power and solvent concentration had varying effects on different antioxidant indicators.
JOURNAL OF CULINARY SCIENCE & TECHNOLOGY
(2023)