Results 51 to 60 of about 164,541 (160)

Polyamine oxidase-mediated killing of African trypanosomes

, 2013
African trypanosomes, Trypanosoma brucei brucei, T. vivax and T. congolense, were killed when incubated in vitro with ruminant sera in the presence of exogeneous spermidine, and were non‐infective for mice.
Allison, C., Ferrante, A., Hirumi, H.
core   +1 more source

An NADPH-Oxidase/Polyamine Oxidase Feedback Loop Controls Oxidative Burst Under Salinity [PDF]

, 2016
The apoplastic polyamine oxidase (PAO) catalyzes the oxidation of the higher polyamines spermidine and spermine, contributing to hydrogen peroxide (H2O2) accumulation.
Moschou Panagiotis N., Park Ky Young, Valassaki, Chryssanthi,, Sveriges lantbruksuniversitet., Gémes Katalin, Park, Ky Young,, Roubelakis-Angelakis, Kalliopi A.,, Moschou, Panagiotis Nikolaou,, Roussis, Andreas,, Swedish University of Agricultural Sciences., Roubelakis-Angelakis Kalliopi A., Kim, Yu Jung,, Andronis, Efthimios A.,, Kim Yu Jung, Gémes, Katalin,, Valassaki Chryssanthi, Andronis Efthimios, Roussis Andreas   +17 more
core   +3 more sources

Evolutionary Conserved and Divergent Responses to Copper Zinc Superoxide Dismutase Inhibition in Plants

Plant, Cell &Environment, EarlyView.
ABSTRACT After an initial evolution in a reducing environment, life got successively challenged by reactive oxygen species (ROS), especially during the great oxidation event (GOE) that followed the development of photosynthesis. Therefore, ROS are deeply intertwined into the physiological, morphological and transcriptional responses of most present‐day
Stephanie Frohn, Fabian B. Haas, Benjamin G. Chavez, Bernd H. Dreyer, Erik V. Reiss, Anne Ziplys, Heiko Weichert, Saskia Hiltemann, José M. Ugalde, Andreas J. Meyer, John C. D'Auria, Stefan A. Rensing, Jos H. M. Schippers   +12 more
wiley   +1 more source

Scehemtic of polyamine metabolism.

, 2013
1. ornithine decarboxylase; 2. spermidine synthetase; 3. spermine synthetase; 4. spermidine/spermine acetyl transferase; 5. polyamine oxidase; 6. N8-acetylspermidine acetyl transferase. This schematic was adapted from Moinard et al. (2005).
Dean P. Jones (180039), Douglas Walker (475398), Karan Uppal (407054), Shannon L. Rhodes (208977), Youngja Park (180025), James R. Roede (180021), Kichun Lee (448713), Vilinh Tran (475397), Frederick H. Strobel (180034), Beate Ritz (60458)   +9 more
core   +1 more source

Perturbation of Spermine Homoeostasis Uncouples Hypersensitive Cell Death From Systemic Plant Immunity

Plant, Cell &Environment, EarlyView.
ABSTRACT Polyamines are key regulators of plant stress responses, yet their contribution to coordinating local immune responses with systemic immunity remains poorly understood. Here, we investigated how spermine (Spm) homeostasis influences local and systemic defence responses in Arabidopsis thaliana following inoculation with Pseudomonas syringae pv.
Jiaqi Zhao, Kostadin E. Atanasov, Olga Jauregui, Rubén Alcázar   +3 more
wiley   +1 more source

Polyamine Catabolism Revisited: Acetylpolyamine Oxidase Plays a Minor Role due to Low Expression

Cells
Biogenic polyamines are ubiquitous compounds. Dysregulation of their metabolism is associated with the development of various pathologies, including cancer, hyperproliferative diseases, and infections.
Olga N. Ivanova, Anna V. Gavlina, Inna L. Karpenko, Martin A. Zenov, Svetlana S. Antseva, Natalia F. Zakirova, Vladimir T. Valuev-Elliston, George S. Krasnov, Irina T. Fedyakina, Pavel O. Vorobyev, Birke Bartosch, Sergey N. Kochetkov, Anastasiya V. Lipatova, Dmitry V. Yanvarev, Alexander V. Ivanov   +14 more
doaj   +1 more source

Synergistic Regulation of Biomaterials and Macrophages: A Novel Paradigm in Immunotherapy

MedComm – Biomaterials and Applications, Volume 5, Issue 4, December 2026.
Bioengineered materials mediating the modulation of macrophage plasticity and inflammatory signals in the tumor microenvironment effectively remodel immunoregulatory states, boost antitumor immunity, and promote tissue repair, achieving synergistic therapeutic outcomes.
Jiayu Zhang, Songhang Xing, Shanshan Zhang, Yuan Hao, Xiaojie Qu, Wurihan Bao, Manwei Hao, Han Sun, Mingyuan Dong, Huiling Zhang, Dan Huang, Yiqi Wang, Xuanjie Jiang, Xiaoyu Pu, Yanyan Chi, Xingtong Wang, Xuefeng Li   +16 more
wiley   +1 more source

Effects of Exogenous Sugar Treatment on Enrichment of γ-Aminobutyric Acid in Peanut Sprouts

Shipin gongye ke-ji
In order to explore the influence of sugar treatment on the enrichment of γ-aminobutyric acid (GABA) in peanut sprouts, this paper selected the optimal application concentration of different types of exogenous sugars (mannose, sucrose and glucose).
Kexin ZHAO, Weihao LAN, Jiali DU, Jingwen CHEN, Zixin FAN, Qinling WEI, Hongfei WANG, Feng XU   +7 more
doaj   +1 more source

Mechanism and regulation of Arabidopsis polyamine acetylation by NATA1 and NATA2

Protein Science, Volume 35, Issue 12, December 2026.
Abstract Polyamines are crucial for sustaining plant growth and stress resilience. Spermine/spermidine N1‐acetyl transferases (SSATs) regulate polyamine abundance by catalyzing their N‐acetylation, thereby reducing the pool of polyamines and producing other bioactive components.
Umar F. Shahul Hameed, Yann‐Ru Lou, Aleczander Young, Jian Yan, Francisco J Guzmán‐Vega, Ekaterina Aleksenko, Huaiyuan Ma, Pierre Briozzo, Solange Moréra, Georg Jander, Stefan T. Arold   +10 more
wiley   +1 more source

Extending the limits of algal growth and stress resilience – the desert alga Chlorella ohadii as an emerging model

New Phytologist, Volume 252, Issue 5, Page 1787-1798, December 2026.
Multiple facets of Chlorella ohadii biological properties and potential as a research model and biotechnology platform. Summary Since its isolation from the sand dunes of the Negev Desert over a decade ago, the unicellular green alga Chlorella ohadii has turned into a reference organism for studying photosynthesis, metabolism, and abiotic stress ...
Or Geffen, Hilla Matityahu, Iftach Yacoby, Michal Breker, Haim Treves   +4 more
wiley   +1 more source