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
Plant Sciences
Miaomiao Wang, Guolei Li, Zhaozhong Feng, Yong Liu, Yansen Xu, Mercedes Uscola
Summary: Research has shown that white poplar trees exhibit different preferences for nitrogen forms at different developmental stages and under environmental stress, influenced by internal carbon and nitrogen utilization needs as well as external factors. Triploid white poplars can alleviate nitrogen uptake reduction under high ozone levels, switching to similar preferences among nitrogen forms.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
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)
Article
Agronomy
Wanji Guo, Ziliang Zhang, Qing Liu, Juan Xiao, Huajun Yin
Summary: The study found that plants in an ectomycorrhizal spruce plantation in the eastern Tibetan Plateau showed a greater preference for soil NH4+-N, regardless of the growing season or non-growing season. Additionally, during the non-growing season, plants exhibited significantly higher absorption of soil amino acids.
Article
Plant Sciences
Jirong Cao, Liuyi Yang, Shuang Pang, Junjie Yang, Yecui Hu, Yuncong Li, Linghao Li, Qibing Wang
Summary: Nitrogen deposition can impact plant diversity and soil nitrogen cycling. Coexisting plant species have different uptake rates and strategies for various forms of nitrogen, which can have important consequences for ecosystem biodiversity and function under current and future nitrogen deposition scenarios.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2021)
Article
Forestry
Rui Wang, Zhilong He, Zhen Zhang, Ting Xv, Xiangnan Wang, Caixia Liu, Yongzhong Chen
Summary: This study investigated the effects of nitrogen form on root activity and nitrogen uptake kinetics of Camellia oleifera Abel. seedlings. The results showed that a mixed nitrogen source improved the root activity of C. oleifera seedlings, and the best nitrate/ammonium ratio was 5:5.
Review
Biochemistry & Molecular Biology
Omar Zayed, Omar A. Hewedy, Ali Abdelmoteleb, Mohammed Ali, Mohamed S. Youssef, Ahmed F. Roumia, Danelle Seymour, Ze-Chun Yuan
Summary: Plants uptake and assimilate nitrogen from the soil, and nitrate and ammonium transporters play important roles in this process. Nitrogen is then incorporated into organic compounds through nitrogen metabolism pathways. Nitric oxide has been found to enhance plant survival under drought stress, and the interaction between nitrogen and salt stress has been studied. Excessive use of nitrate fertilizers can have negative impacts on health and the environment, highlighting the importance of alternative strategies. Genomics can identify new genes related to nitrogen fixation, which can be utilized to improve plant productivity.
Article
Plant Sciences
Maaya Igarashi, Yan Yi, Katsuya Yano
Summary: The study found that the increase in plant biomass under elevated CO2 concentration is lower than expected, mainly due to induced nitrogen deficiency. While some hypotheses were not confirmed, the results showed that higher CO2 concentration significantly enhances water-use efficiency in plants, and accelerated growth rate increases the demand for nitrogen.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Lin Luo, Chunzhang Zhao, Donghui Zheng, Entao Wang, Jin Liang, Chunying Yin
Summary: The preference for different nitrogen forms can enhance plant survival and fitness. This study examined how soil water availability, nitrogen addition, and their interaction affect plant nitrogen uptake preference and allocation in Populus cathayana. The results showed that nitrogen addition increased plant biomass and nitrogen accumulation but decreased nitrogen allocation to leaves. Drought decreased plant biomass, nitrogen accumulation, and nitrogen uptake, and intensive drought had a greater impact than mild drought. The study also found that P. cathayana exhibited ammonium preference under intensive drought conditions. Overall, this study provides valuable insights into how plants adapt and prefer different nitrogen forms under drought stress.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2023)
Article
Forestry
Judy Simon, Silvija Bilela, Heinz Rennenberg
Summary: European beech roots on calcareous soil prefer organic nitrogen, especially arginine. The study found that the uptake capacity of inorganic nitrogen and glutamine-N did not vary with tree age, while the uptake of arginine-N was higher in younger and older plants.
TREES-STRUCTURE AND FUNCTION
(2021)
Article
Microbiology
Carmen Alicia Rivera Perez, Dennis Janz, Dominik Schneider, Rolf Daniel, Andrea Polle
Summary: This study investigated the responses of the fungal community and the host tree to fluctuations in nitrogen availability. The results showed that the fungi displayed resistance to increased nitrogen levels, while the tree dynamically metabolized the supplied nitrogen sources.
Article
Agronomy
Shu Tong Liu, Kosala Ranathunge, Hans Lambers, Patrick M. Finnegan
Summary: This research explores the common trait of nitrate-uptake restraint in Proteaceae and co-occurring plant species in south-western Australia. It was found that many plant species in this region have evolved to have this trait as a response to the severely phosphorus-impoverished soils.
Article
Agriculture, Dairy & Animal Science
Rosana C. Maia, Luiz F. T. Albino, Horacio S. Rostagno, Maurilio L. Xavier Junior, Bruna S. Kreuz, Raully L. Silva, Bruno D. Faria, Arele A. Calderano
Summary: The aim of this study was to evaluate the effects of essential-to-total nitrogen ratios supplemented with nonessential amino acids in low-protein diets on the performance, nitrogen retention, and blood parameters of broiler chickens. The results showed that diets with an eN-to-tN ratio of 50% or less were more beneficial in maintaining broiler performance and efficient nitrogen metabolism.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2021)
Article
Plant Sciences
Procopio Peinado-Torrubia, Rosario alvarez, Marta Lucas, Juan D. D. Franco-Navarro, Francisco J. J. Duran-Gutierrez, Jose M. Colmenero-Flores, Miguel A. A. Rosales
Summary: Chloride (Cl-) and nitrate (NO3-) are closely related anions involved in plant growth. It has been traditionally believed that chloride antagonizes nitrate uptake and accumulation in plants. However, recent studies have shown that chloride nutrition at beneficial macronutrient levels can improve nitrogen use efficiency (NUE) in plants. The underlying biochemical mechanisms of how beneficial chloride nutrition improves NUE are poorly understood.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Agronomy
Erinaldo Gomes Pereira, Marcus Vinicius Loss Sperandio, Leandro Azevedo Santos, Carlos Alberto Bucher, Cassia Pereira Coelho, Manlio Silvestre Fernandes
Summary: In this study, we evaluated the effects of isoforms of ammonium transporters and amino acid transporters on different rice varieties cultivated with different levels of ammonium. The results showed that the molecular responses and nitrogen metabolism differed among the varieties.
ARCHIVES OF AGRONOMY AND SOIL SCIENCE
(2023)
Article
Agronomy
Carina P. Lang, Nikolaus Merkt, Christoph-Martin Geilfus, Simone Graeff-Hoenninger, Judy Simon, Heinz Rennenberg, Christian Zoerb
ARCHIVES OF AGRONOMY AND SOIL SCIENCE
(2019)
Article
Plant Sciences
D. Maurer, R. Kiese, J. Kreuzwieser, H. Rennenberg
Article
Forestry
Judy Simon, Veit M. Doerken, Anne I-M-Arnold, Bartosz Adamczyk
Article
Plant Sciences
Andrea Bueno, Karin Pritsch, Judy Simon
FRONTIERS IN PLANT SCIENCE
(2019)
Article
Plant Sciences
Joerg Kruse, Mark Adams, Barbro Winkler, Andrea Ghirardo, Saleh Alfarraj, Juergen Kreuzwieser, Rainer Hedrich, Joerg-Peter Schnitzler, Heinz Rennenberg
Article
Forestry
Fengli Yang, Ruth-Kristina Magh, Mladen Ivankovic, Miran Lanscak, Simon Haberstroh, Baoguo Du, Michael Dannenmann, Heinz Rennenberg, Cornelia Herschbach
EUROPEAN JOURNAL OF FOREST RESEARCH
(2020)
Review
Chemistry, Multidisciplinary
Bartosz Adamczyk, Jussi Heinonsalo, Judy Simon
Article
Plant Sciences
Bin Hu, Axel Mithoefer, Michael Reichelt, Kai Eggert, Franziska S. Peters, Ming Ma, Joerg Schumacher, Juergen Kreuzwieser, Nicolaus von Wiren, Heinz Rennenberg
Summary: The study revealed that infection by Diplodia pinea induced various systemic defense responses in pine hosts, including increased levels of abscisic acid and jasmonic acid in both pine provenances. Additionally, exclusive responses such as enhanced salicylic acid and reduced indole-3-acetic acid levels were observed in the roots of both provenances, along with increased activities of anti-oxidative enzymes. Furthermore, the two pine provenances showed significant differences in their systemic responses, which did not prevent damage to non-inoculated needles but prevented damage to the roots.
PLANT CELL AND ENVIRONMENT
(2021)
Article
Forestry
Judy Simon, Silvija Bilela, Heinz Rennenberg
Summary: European beech roots on calcareous soil prefer organic nitrogen, especially arginine. The study found that the uptake capacity of inorganic nitrogen and glutamine-N did not vary with tree age, while the uptake of arginine-N was higher in younger and older plants.
TREES-STRUCTURE AND FUNCTION
(2021)
Article
Plant Sciences
Aikaterini Koletti, Irene Dervisi, Chrysanthi Kalloniati, Maria-Eleftheria Zografaki, Heinz Rennenberg, Andreas Roussis, Emmanouil Flemetakis
Summary: This study identifies a selenium-binding protein, CrSBD1, as a cell regulator involved in modulating early responses to oxidative stress in Chlamydomonas reinhardtii. The absence of functional CrSBD1 leads to increased growth under mild oxidative stress conditions, but decreased cell viability at higher hydrogen peroxide concentrations. Transcriptomic and metabolomic analysis reveals a significant reduction in molecular and biochemical responses to H2O2-induced oxidative stress in the sbd1 mutant compared to the wild-type.
Article
Forestry
Judy Simon
Summary: When competing for nitrogen, organic N is more important than inorganic N for most tree species.
TREES-STRUCTURE AND FUNCTION
(2023)
Article
Forestry
Andrea Bueno, Karin Pritsch, Judy Simon
Summary: Invasive woody species pose a major threat to native communities, especially during periods of increased summer drought. Competition for nitrogen between native and invasive species may play a key role in the invasion process. Traits of invasive species may provide advantages in nitrogen competition under drought conditions in Central Europe.
Article
Forestry
Andrea Bueno, Lucy Greenfield, Karin Pritsch, Susanne Schmidt, Judy Simon
Review
Soil Science
Bartosz Adamczyk, Sylwia Adamczyk, Aino Smolander, Veikko Kitunen, Judy Simon