Results 71 to 80 of about 10,587 (231)

Compensatory Mutations in Predicted Metal Transporters Modulate Auxin Conjugate Responsiveness in Arabidopsis [PDF]

, 2013
Levels of the phytohormone indole-3-acetic acid (IAA) can be altered by the formation and hydrolysis of IAA conjugates. The isolation and characterization of Arabidopsis thaliana mutants with reduced IAA-conjugate sensitivity and wild-type IAA responses ...
Arrivault, Assuncao, Ausubel, Bartel, Bell, Bitto, Blaudez, Bloß, Chang, Cheng, Clemens, Clough, Davies, Delhaize, Delhaize, Desbrosses-Fonrouge, Dunkley, Eide, Ellis, Fukunaka, Gaither, Gietz, Gollhofer, Gustin, Hall, Haughn, Huang, Jirakulaporn, Kambe, Kambe, Kawachi, Kawachi, Kim, Kobae, Koncz, Kumánovics, Lasswell, Lasswell, Last, LeClere, LeClere, Li, Li, MacDiarmid, Magidin, Marschner, Michaels, Montanini, Mäser, Neff, Normanly, Peiter, Persans, Rampey, Rampey, Rosso, Schwacke, Stasinopoulos, Strader, Taylor, Van Der Zaal, Winter, Woodward   +62 more
core   +1 more source

Determination of cephalosporin-C amidohydrolase activity with fluorescamine

Journal of Pharmacy and Pharmacology, 1989
Abstract A spectrophotometric procedure for the assay of cephalosporin-C amidohydrolase activity, based on the determination of the 7-aminocephalosporanic acid (7-ACA) produced in the hydrolysis of cephalosporin-C by the enzyme, is described. This procedure can be used to detect 7-ACA over a range of 10 to 200 μg mL−1.
María Jesús Martínez, Fuensanta Reyes, Juan Soliveri   +2 more
openaire   +3 more sources

Deciphering Physiological Functions of AHL Quorum Quenching Acylases

Frontiers in Microbiology, 2017
N-Acylhomoserine lactone (AHL)-acylase (also known as amidase or amidohydrolase) is a class of enzyme that belongs to the Ntn-hydrolase superfamily. As the name implies, AHL-acylases are capable of hydrolysing AHLs, the most studied signaling molecules ...
Putri D. Utari, Jan Vogel, Wim J. Quax
doaj   +1 more source

The Acylamide Amidohydrolase of Candida utilis: Purification and Properties [PDF]

Journal of General Microbiology, 1969
SUMMARY: The amidohydrolase formed in the later stages of growth on glucose peptone medium by Candida utilis was purified 60-fold from cell-free extracts. The purified enzyme hydrolysed mono- and di-carboxylic acid amides, benzamide, nicotinamide, pyrazinamide and certain β-hydroxyl substituted fatty acid amides, was inactive on l-asparagine and l ...
openaire   +3 more sources

Activation Energy of Organic Matter Decomposition in Soil and Consequences of Global Warming

Global Change Biology, Volume 31, Issue 9, September 2025.
Activation energy (Ea) is the minimum energy necessary for (bio)chemical reactions defining reaction rates, e.g., organic matter transformations in soil. Based on the Ea database of enzyme activities, CO2 production, heat release during soil incubation, and thermal oxidation of soil organic matter, we assess the Ea of biotic and abiotic transformation ...
Ekaterina Filimonenko, Yakov Kuzyakov
wiley   +1 more source

A sulfoximine-based inhibitor of human asparagine synthetase kills l-asparaginase-resistant leukemia cells. [PDF]

, 2012
An adenylated sulfoximine transition-state analogue 1, which inhibits human asparagine synthetase (hASNS) with nanomolar potency, has been reported to suppress the proliferation of an l-asparagine amidohydrolase (ASNase)-resistant MOLT-4 leukemia cell ...
Ahn, Yong-Mo, Hegazy, Lamees, Hiratake, Jun, Ikeuchi, Hideyuki, Otokawa, Takuya, Richards, Nigel G J, Watanabe, Bunta   +6 more
core   +1 more source

Comparative Study of the Mitochondrial Proteome From Mesophyll, Vascular, and Guard Cells in Response to Carbon Starvation

Physiologia Plantarum, Volume 177, Issue 5, September/October 2025.
ABSTRACT A leaf is an organ composed of different tissues that fulfill specific functions. We hypothesized that since cells in vascular or mesophyll tissues as well as in stoma are developmentally tuned to operate their functions, mitochondria from these cells could exhibit significant metabolic differences.
Clément Boussardon, Shah Hussain, Olivier Keech   +2 more
wiley   +1 more source

Characterization of Jasmonoyl-Isoleucine (JA-Ile) Hormonal Catabolic Pathways in Rice upon Wounding and Salt Stress

Rice, 2019
Background Jasmonate (JA) signaling and functions have been established in rice development and response to a range of biotic or abiotic stress conditions.
Mohamed Hazman, Martin Sühnel, Sandra Schäfer, Julie Zumsteg, Agnès Lesot, Fréderic Beltran, Valentin Marquis, Laurence Herrgott, Laurence Miesch, Michael Riemann, Thierry Heitz   +10 more
doaj   +1 more source

Characterization of the gene cluster involved in allantoate catabolism and its transcriptional regulation by the RpiR-type repressor HpxU in Klebsiella pneumoniae [PDF]

, 2013
Bacteria, fungi, and plants have metabolic pathways for the utilization of nitrogen present in purine bases. In Klebsiella pneumoniae, the genes responsible for the assimilation of purine ring nitrogen are distributed in three separated clusters.
Evangelina Campos, Josefa Badia, Juan Aguilar, Karla Guzmán, Laura Aguilera, Laura Baldoma, Lorena Toloza, Rosa Giménez   +7 more
core   +1 more source

SCL15 Regulates the Release of Seed Dormancy in Arabidopsis thaliana by Integrating the Circadian Clock, Hormonal Signals and Cell Wall Remodelling

Physiologia Plantarum, Volume 177, Issue 5, September/October 2025.
ABSTRACT Dormancy release and germination of the seed are two separate, but continuous phases controlled by both external (e.g., light and temperature) and internal (e.g., circadian clock and hormones) cues. In eudicot seeds, the endosperm tissues play a key role in dormancy release and germination through dynamic modulation of wall components and ...
Ming‐Jun Gao, Qi Chen, Cathy Coutu, Fuyou Fu, Bianyun Yu, Xiang Li, Z. Jeffrey Chen, Dwayne Hegedus   +7 more
wiley   +1 more source