Results 81 to 90 of about 47,150 (283)

Putrescine biosynthesis in Tetrahymena thermophila [PDF]

Biochemical Journal, 1984
The putrescine-biosynthesis pathway in Tetrahymena thermophila was delineated by studying crude extracts prepared from exponentially growing cultures. A pyridoxal phosphate-stimulated ornithine decarboxylase activity competitively inhibited by putrescine was detected. CO2 was also liberated from L-arginine, but analyses by t.l.c.
K M, Yao, W F, Fong, S F, Ng
openaire   +2 more sources

Host‐driven hepatic conversion of gut microbiota‐derived putrescine to spermidine mediates mannose's protective effects against hepatic steatosis in zebrafish

iMeta, EarlyView.
Evidence for liver metabolism of gut‐derived microbial compounds into beneficial secondary metabolites has been lacking. Here, we demonstrate that Cetobacterium somerae (C. somerae), enriched by mannose supplementation under high‐fat diet conditions, convert arginine into putrescine.
Delong Meng, Zhen Zhang, Tsegay Teame, Benjamin Earl Niemann, Rui Xia, Shichang Xu, Yajie Zhao, Yalin Yang, Chao Ran, Le Luo Guan, Zhigang Zhou   +10 more
wiley   +1 more source

Physiological and Proteomic Analyses Reveal Effects of Putrescine-Alleviated Aluminum Toxicity in Rice Roots

Rice Science, 2021
The effects of putrescine on improving rice growth under aluminum (Al) toxicity conditions have been previously demonstrated, however, the underlying mechanism remains unclear.
Zhu Chunquan, Hu Wenjun, Cao Xiaochuang, Zhu Lianfeng, Kong Yali, Jin Qianyu, Shen Guoxin, Wang Weipeng, Zhang Hui, Zhang Junhua   +9 more
doaj   +1 more source

Glutamate, Ornithine, Arginine, Proline, and Polyamine Metabolic Interactions: The Pathway Is Regulated at the Post-Transcriptional Level [PDF]

, 2016
The metabolism of glutamate into ornithine, arginine, proline, and polyamines is a major network of nitrogen-metabolizing pathways in plants, which also produces intermediates like nitric oxide, and γ-aminobutyric acid (GABA) that play critical roles in ...
Boubker eBarchi, Maegan eGagne, Rajtilak eMajumdar, Rakesh eMinocha, Stephanie eLong, Subhash C Minocha, Swathi eTurlapati, Swathi eTurlapati   +7 more
core   +4 more sources

Novel ionization reagent for the measurement of gas-phase ammonia and amines using a stand-alone atmospheric pressure gas chromatography (APGC) source. [PDF]

, 2020
RationaleContaminants present in ambient air or in sampling lines can interfere with the target analysis through overlapping peaks or causing a high background. This study presents a positive outcome from the unexpected presence of N-methyl-2-pyrrolidone,
Finlayson-Pitts, Barbara J, Li, Xiaoxiao, Perraud, Véronique, Smith, James N   +3 more
core   +1 more source

Spectrofluorometric Determination of Putrescine: Optimization of the Putrescine–Orthophthaldehyde Complex Using Spectrofluorometry

Journal of AOAC INTERNATIONAL, 2016
Abstract In alkaline medium, the complex formed between putrescine and orthophthalaldehyde was studied using spectrofluorescence. The derivative is kinetically stable 24 h after complexation. The stoichiometry of the complex is 1:1 at maximum fluorescence intensity, also 24 h after complexation.
Oladele, Oyelakin, Moumouny, Traoré, El Hadji Babacar, Mbye, Abdourahmane, Khonté, Lamine, Cisse, Abdoulaye N, Faye, Ousman, Faye, Moussa, Mbaye, Khemesse, Kital, Mame Diabou, Gaye-Seye, Atanasse, Coly, Alphonse, Tine, François, Delattre   +12 more
openaire   +2 more sources

Vegetable Oil‐Based Materials for Drug Delivery Systems and Wound Dressings

Macromolecular Bioscience, EarlyView.
Renewable resources like vegetable oils are increasingly explored for biomaterial production in biomedical applications. Their monoglycerides and triglycerides inherently possess functions or can be chemically modified to introduce functional groups suitable for polymerization, yielding biomaterials with desirable properties such as flexibility ...
Lucas M. Favre, Nicolas Masurier, Anne Aubert‐Pouëssel   +2 more
wiley   +1 more source

Optimization of ClpXP activity and protein synthesis in an E. coli extract-based cell-free expression system. [PDF]

, 2018
Protein degradation is a fundamental process in all living cells and is essential to remove both damaged proteins and intact proteins that are no longer needed by the cell.
Joseph, Simpson, K Devaraj, Neal, M Cole, Christian, Shi, Xinying, Wu, Ti   +4 more
core   +2 more sources

Progress in Surface‐Enhanced Raman Scattering‐Based Volatile Organic Compounds Detection: Materials, Application, and Prospects

Rare Metals, EarlyView.
ABSTRACT The detection of volatile organic compounds (VOCs) holds significant implications in environmental monitoring and disease diagnosis. Traditional gas detection technologies are constrained by complex operation and high cost, thereby failing to satisfy real‐time detection demands.
Yuening Wang, Lin Qiu, Jian Yu, Wen Ma, Xiaoyu Song, Mingjian Zhang, Yujiao Xie, Aochi Liu, Li Sun, Xiangyu Meng, Jie Lin, Xiaotian Wang   +11 more
wiley   +1 more source

Glucuronoyl Esterase of Pathogenic Phanerochaete carnosa Induces Immune Responses in Aspen Independently of Its Enzymatic Activity

Plant Biotechnology Journal, EarlyView.
ABSTRACT Microbial enzymes expressed in plants add new functionalities but occasionally trigger undesirable immune responses. Phanerochaete carnosa glucuronoyl esterase (PcGCE) hydrolyses the bond between lignin and 4‐O‐methyl‐α‐D‐glucuronic acid substituent of glucuronoxylan.
Evgeniy N. Donev, Marta Derba‐Maceluch, Xiao‐Kun Liu, Henri Colyn Bwanika, Izabela Dobrowolska, Mohit Thapa, Joanna Leśniewska, Jan Šimura, Alex Yi‐Lin Tsai, Konrad S. Krajewski, Dan Boström, Leszek A. Kleczkowski, Maria E. Eriksson, Karin Ljung, Emma R. Master, Ewa J. Mellerowicz   +15 more
wiley   +1 more source