Article
Biodiversity Conservation
Shuqi Xiao, Chao Wang, Kai Yu, Genyuan Liu, Shuang Wu, Jinyang Wang, Shuli Niu, Jianwen Zou, Shuwei Liu
Summary: Studies have shown that nitrogen deposition has significant effects on carbon uptake in forests and grasslands, as well as on N2O emissions from soil. However, the impact on SOC pool is limited. Overall, nitrogen deposition increases the net greenhouse gas balance in forests and grasslands.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Plant Sciences
Alexi C. Besser, Emma A. Elliott Smith, Seth D. Newsome
Summary: Analyzing isotopes of amino acids can offer more accurate estimates of energy flow and consumer trophic levels in food webs. However, the specific analysis of amino acids in terrestrial and freshwater producers still requires further study and exploration.
JOURNAL OF ECOLOGY
(2022)
Article
Agronomy
Weronika Czaban, Jim Rasmussen
Summary: The uptake rate of asparagine in white clover is reduced with increasing inorganic nitrogen concentration. Plant amino acid profiles are likely to be a more sensitive indicator of nitrogen supply.
JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE
(2021)
Article
Plant Sciences
Yunke Peng, Iain Colin Prentice, Keith J. Bloomfield, Matteo Campioli, Zhiwen Guo, Yuanfeng Sun, Di Tian, Xiangping Wang, Sara Vicca, Benjamin D. Stocker
Summary: Quantifying plant biomass production, nitrogen uptake, and nitrogen use efficiency is crucial for understanding the constraints of nitrogen cycling on terrestrial carbon uptake. By compiling measurements from 804 forest and grassland sites, this study derived regression models for key plant processes determining nitrogen uptake and nitrogen use efficiency. The models were used to create global maps of nitrogen uptake and nitrogen use efficiency, providing observational benchmarks for model representations of C-N cycle coupling.
JOURNAL OF ECOLOGY
(2023)
Article
Biology
Julia Siebert, Marie Suennemann, Yann Hautier, Anita C. Risch, Jonathan D. Bakker, Lori Biederman, Dana M. Blumenthal, Elizabeth T. Borer, Miguel N. Bugalho, Arthur A. D. Broadbent, Maria C. Caldeira, Elsa Cleland, Kendi F. Davies, Anu Eskelinen, Nicole Hagenah, Johannes M. H. Knops, Andrew S. Macdougall, Rebecca L. Mcculley, Joslin L. Moore, Sally A. Power, Jodi N. Price, Eric W. Seabloom, Rachel Standish, Carly J. Stevens, Stephan Zimmermann, Nico Eisenhauer
Summary: Soil moisture is found to be the main driver of microbial and detritivore activity in grasslands, with global climatic factors playing a larger role than local treatments. This has important implications for the potential impact of climate change and human interventions on grassland ecosystems.
COMMUNICATIONS BIOLOGY
(2023)
Article
Environmental Sciences
Naoya Takeda, Johannes Friedl, Robert Kirkby, David Rowlings, Clemens Scheer, Daniele De Rosa, Peter Grace
Summary: This study investigated N2O + N-2 losses in response to different N fertilizer rates on tropical sugarcane farms in Australia. The results showed that N2O + N-2 losses increased non-linearly with increasing N fertilizer rates. This study provides a method to extrapolate denitrification measurements at both temporal and spatial scales.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2023)
Article
Energy & Fuels
Heresh Rayej, Mohammad Reza Vaezi, Behzad Aghabarari, Ramiro Ruiz-Rosas, Juana M. Rosas, Jose Rodriguez-Mirasol, Tomas Cordero
Summary: This work demonstrates the preparation of oxygen reduction reaction catalysts by pyrolysis of amino acid functionalized graphene oxide, with Histidine showing promising results in enhancing capacitance, conductivity, and ORR activity.
Article
Agronomy
Erinaldo Gomes Pereira, Cassia Pereira Coelho Bucher, Carlos Alberto Bucher, Leandro Azevedo Santos, Joviana Lerin, Claudete Santa Catarina, Manlio Silvestre Fernandes
Summary: This study investigates the presence and role of OsAAP1 transporter in various organs and tissues of rice plants. The loss of OsAAP1 function in mutant lines led to reduced growth and grain yield, as well as decreased absorption, use, and remobilization of nitrogen. The distribution of amino acids was affected in the mutant lines, resulting in accumulation in vegetative organs. Additionally, the fertility of spikelets was severely reduced. These findings highlight the critical role of OsAAP1 in amino acid translocation, spikelet fertility, and grain yield maintenance in rice.
Article
Biotechnology & Applied Microbiology
Raquel Torres, Leonardo Mata, Rui Santos, Ana Alexandre
Summary: The study evaluated the uptake kinetics of inorganic and organic nitrogen forms by the tetrasporophyte of Asparagopsis armata, revealing two different uptake phases and the species' preference for ammonium during the internally controlled phase. Surprisingly, amino acids had higher surge uptake rates than inorganic forms, highlighting their importance for the species' nutrition. This information is crucial for the mass production of Asparagopsis to reduce enteric methane production in the livestock industry.
JOURNAL OF APPLIED PHYCOLOGY
(2021)
Article
Geochemistry & Geophysics
Leonid Y. Aranovich, Alexey N. Pertsev, Andrey V. Girnis, Nikolay S. Bortnikov, Paula M. Antoshechkina
Summary: New data on the chemical composition of basalt glasses collected in the anomaly region of the Mid-Atlantic Ridge provide insight into the compositional variability and potential source materials. The study indicates that the glasses show a wide range of compositions and could originate from both depleted mantle and other source materials. The results suggest two alternative hypotheses, partial melting of continental crustal material and melt-rock interaction within off-axial gabbro structures, as potential mechanisms for the compositional diversity observed in the samples.
Review
Biochemistry & Molecular Biology
Suzeeta Bhandari, Kirpal S. Bisht, David J. Merkler
Summary: Fatty acid amides are lipids composed of a fatty acid and a biogenic amine. This review focuses on a lesser-known sub-class of fatty acid amides called N-acyl aromatic amino acids (NA-ArAAs). The review highlights the identified NA-ArAAs from biological sources and presents information on their biosynthesis, degradation, enzymatic modification, and transport, as well as their cellular functions. The aim of this review is to stimulate future research on this underappreciated sub-class of the fatty acid amide family.
FRONTIERS IN MOLECULAR BIOSCIENCES
(2022)
Article
Chemistry, Multidisciplinary
Xinxin Tang, Raj K. Tak, Hidetoshi Noda, Masakatsu Shibasaki
Summary: We report the stereoselective synthesis of remotely decorated, trisubstituted beta-prolines via Rh-catalyzed C-H amination. The method works well in the presence of various functionalities, with carboxylic acids in the products serving as gateways for diverse downstream transformations.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Plant Sciences
Jamal Nasar, Chang Jiang Zhao, Rayyan Khan, Hina Gul, Harun Gitari, Zeqiang Shao, Ghulam Abbas, Imran Haider, Zafar Iqbal, Waqas Ahmed, Raheela Rehman, Qing Ping Liang, Xun Bo Zhou, Juan Yang
Summary: This study investigated the effects of maize-soybean intercropping on nitrogen uptake, yield, utilization efficiency, and nitrogen assimilatory enzymes of maize crops under different nitrogen fertilization conditions. The results showed that intercropping at the optimal nitrogen rate significantly increased maize grain yield, residue yield, and 100-grain weight in both years. Intercropping also improved nitrogen content and uptake, as well as the activities of nitrogen assimilatory enzymes. These findings highlight the potential of intercropping for enhancing nitrogen status and use efficiency in maize crops, supporting sustainable agricultural production.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Md Mehedi Hasan, Gibrilla Dumbuya, Habtamu Assega Alemayehu, Uzuki Matsushima, Maya Matsunami, Hiroyuki Shimono
Summary: Plants uptake nitrogen both day and night, but the acclimation response differs between interrupted nitrogen supply during the day and during the night. The increased nitrogen uptake rate during each feeding period does not fully compensate for the lost access to nitrogen, resulting in lower nitrogen accumulation by the end of the treatment. The reduction is smaller in plants with interrupted daytime nitrogen supply compared to plants with interrupted nighttime nitrogen supply.
FUNCTIONAL PLANT BIOLOGY
(2022)
Article
Environmental Sciences
Gongning Chen, Yanhong Du, Liping Fang, Xiangqin Wang, Chuanping Liu, Huanyun Yu, Mi Feng, Xi Chen, Fangbai Li
Summary: This study investigates the effects of different forms of nitrogen fertilizer on the reduction and dissolution of arsenic-bearing iron minerals and microbial-mediated arsenic transformation processes. The results show that nitrate nitrogen fertilizer reduces the bio-availability of arsenic in soil, while ammonium nitrogen fertilizer promotes the release of arsenic into porewater. However, the combined application of nitrate and ammonium nitrogen has no significant effect on arsenic concentration in rice grain and its transformation in paddy soils. These findings provide insights into the rational use of nitrogen fertilizers to reduce the risk of arsenic contamination in rice.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Review
Environmental Sciences
Peter M. Kopittke, Asmeret Asefaw Berhe, Yolima Carrillo, Timothy R. Cavagnaro, Deli Chen, Qing-Lin Chen, Mercedes Roman Dobarco, Feike A. Dijkstra, Damien J. Field, Michael J. Grundy, Ji-Zheng He, Frances C. Hoyle, Ingrid Kogel-Knabner, Shu Kee Lam, Petra Marschner, Cristina Martinez, Alex B. McBratney, Eve McDonald-Madden, Neal W. Menzies, Luke M. Mosley, Carsten W. Mueller, Daniel V. Murphy, Uffe N. Nielsen, Anthony G. O'Donnell, Elise Pendall, Jennifer Pett-Ridge, Cornelia Rumpel, Iain M. Young, Budiman Minasny
Summary: Healthy soils play a crucial role in planetary survivability, providing not only calories but also other essential functions. However, intensive agriculture is rapidly degrading soils and diminishing their capacity to deliver vital functions, highlighting the need to focus on the multiple functions of soils for long-term human welfare and the survivability of the planet.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Ecology
Ruzhen Wang, Junjie Yang, Heyong Liu, Jordi Sardans, Yunhai Zhang, Xiaobo Wang, Cunzheng Wei, Xiaotao Lu, Feike A. Dijkstra, Yong Jiang, Xingguo Han, Josep Penuelas
Summary: Phosphorus limitation is expected to increase due to nitrogen-induced terrestrial eutrophication, but can be alleviated through transformations of phosphorus pools.
Article
Soil Science
Bahareh Bicharanloo, Milad Bagheri Shirvan, Claudia Keitel, Feike A. Dijkstra
Summary: This study investigated the effects of different nitrogen (N) and phosphorus (P) fertilization on microbial nitrogen mineralization in soil planted with different wheat genotypes. The results showed that phosphorus fertilization increased GNM, low level N fertilization led to phosphorus-induced nitrogen limitation, high level N fertilization reduced NNM, and the impact of rhizodeposition was less significant compared to soil nitrogen and phosphorus availability between wheat genotypes.
Article
Soil Science
Junxi Hu, Congde Huang, Shixing Zhou, Xiong Liu, Feike A. Dijkstra
Summary: The effects of nitrogen addition on soil microbial necromass are influenced by ecosystem type, nitrogen addition method, and duration, providing critical information for enhancing the sequestration of microbially derived carbon under continued global nitrogen input.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Environmental Sciences
L. Castaneda-Gomez, J. R. Powell, E. Pendall, Y. Carrillo
Summary: This study investigated the interactive effects of AM fungi and P availability on soil C cycling under eCO(2), finding that AM fungi can promote root biomass growth and nutrient uptake while protecting the SOM pool against decomposition.
Article
Biodiversity Conservation
Kevin E. Mueller, Troy W. Ocheltree, Julie A. Kray, Julie A. Bushey, Dana M. Blumenthal, David G. Williams, Elise Pendall
Summary: The effects of climate change on plants and ecosystems are mediated by plant hydraulic traits. This study assessed the response of several plant hydraulic traits to elevated CO2 and warming in a semiarid grassland. The results showed that interspecific differences in hydraulic traits were larger than intraspecific shifts, and the effects of elevated CO2 were greater than warming. Future studies should further investigate the mechanisms of plant response to drought.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Biodiversity Conservation
Dana M. Blumenthal, Yolima Carillo, Julie A. Kray, Matthew C. Parsons, Jack A. Morgan, Elise Pendall
Summary: This study investigated how disturbance and plant invasion influence the sensitivity of mixed-grass prairie to elevated carbon dioxide and warming, revealing that in disturbed/invaded prairie, plants respond much more strongly to eCO(2) compared to intact prairie.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Soil Science
Md Rumainul Islam, Balwant Singh, Feike A. Dijkstra
Summary: Microbial carbon use efficiency (CUE) plays a significant role in the decomposition and stabilisation of soil organic matter (SOM). The type of substrate and soil properties such as pH, soil organic C (SOC), and clay content affect microbial CUE. In this meta-analysis, we found that the CUE varied among different substrates and was influenced by the amount of substrate applied, clay content, soil pH, and SOC content. The CUE of glucose increased with decreasing amount of substrate applied and increasing clay content. Furthermore, an increase in soil pH and a decrease in SOC content also led to a significant increase in glucose CUE, although these relationships were relatively weak.
APPLIED SOIL ECOLOGY
(2023)
Article
Plant Sciences
Manjunatha H. Chandregowda, Mark G. Tjoelker, Elise Pendall, Haiyang Zhang, Amber C. Churchill, Sally A. Power
Summary: Drought and warming can reduce forage production, but a trade-off between belowground production and root trait plasticity can offset the negative effects. However, there is a lack of understanding of belowground traits in maintaining aboveground growth in grazed systems. In this study, we found that drought and warming reduced plant production and biomass allocation belowground, while specific root length and root diameter were affected by both drought and warming.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Agronomy
Hana Husain, Feike A. Dijkstra
Summary: Plant residue amendments can improve soil aggregation and organic carbon content, but their effects depend on the type of plant residue and soil properties. Soils with low organic carbon content and neutral pH show greater improvement due to plant residue amendments. Both fresh and charred plant residues are effective in forming soil aggregates, but charred residues are more effective in increasing total soil organic carbon.
JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE
(2023)
Article
Environmental Sciences
Chiara Pasut, Fiona H. M. Tang, Budiman Minasny, Charles R. Warren, Feike A. Dijkstra, William J. Riley, Federico Maggi
Summary: In this study, the turnover time of soil organic carbon (SOC) pools in global wetlands and the governing processes were quantified using a comprehensive process-based biogeochemical model. The results showed that SOC turnover time ranged from 1 to 1,000 years and was mainly controlled by anaerobic and aerobic respiration, as well as abiotic destabilization from soil minerals. The findings also revealed seasonal variability in SOC turnover, indicating the need for better accounting of seasonal fluctuations to estimate carbon exchanges between wetlands and the atmosphere at geographic scales.
GLOBAL BIOGEOCHEMICAL CYCLES
(2023)
Article
Ecology
Michelle Peziol, L. Mark Elbroch, Lisa A. Shipley, R. Dave Evans, Daniel H. Thornton
Summary: Carnivores influence nutrient cycling by predation and the deposition of animal carcasses, contributing to spatial heterogeneity in ecological communities.
Article
Agronomy
Bahareh Bicharanloo, Matthias Johannes Salomon, Timothy R. Cavagnaro, Claudia Keitel, Chris Brien, Nathaniel Jewell, Bettina Berger, Thomas Lines, Feike A. Dijkstra
Summary: The study found that non-mycorrhizal plants were as successful as mycorrhizal plants in terms of N and water uptake under reduced and variable water availability. However, mycorrhizal plants showed lower water use efficiency and shoot N recovery, potentially due to their higher requirements for water and N. Non-mycorrhizal plants had greater specific root exudation, resulting in relatively greater uptake of N than P across all watering conditions.
Article
Soil Science
Shaobin Yan, Liming Yin, Feike A. Dijkstra, Peng Wang, Weixin Cheng
Summary: Plant root exudates have a significant positive priming effect on soil organic carbon decomposition, with distinct differences in the magnitude and regulators of this effect. Amino acids induce the highest priming effect, followed by simple sugars, low-molecular-weight organic acids, and phenolics. The specificity of root exudate types and multiple mechanisms play a crucial role in causing this effect. Future studies should focus on long-term experiments with continuous addition of mixed compounds to further understand the modulation of soil C decomposition by changes in root exudates.
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
Article
Plant Sciences
Jinfeng Yang, Jiayu Lu, Mingqi Liu, Feike A. Dijkstra
Summary: Remobilization of carbon and nitrogen from roots and crowns to regrowing shoots is a crucial strategy for grassland plants to tolerate herbivory. The continuous remobilization of carbon and nitrogen even after plants are fully regrown has significant effects on long-term productivity and carbon sequestration.
JOURNAL OF ECOLOGY
(2023)
