Results 71 to 80 of about 12,409 (229)

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

open access: yes, 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   +62 more
core   +1 more source

Identification of a novel link connecting indole‐3‐acetamide with abscisic acid biosynthesis and signaling

open access: yesNew Phytologist, EarlyView.
Summary Plants orchestrate their developmental processes and responses to environmental stimuli through a sophisticated network of small signaling molecules, termed phytohormones. Among these, auxins are recognized for their role in promoting plant growth.
José Moya‐Cuevas   +8 more
wiley   +1 more source

Deciphering Physiological Functions of AHL Quorum Quenching Acylases

open access: yesFrontiers 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

Methyl Jasmonate Seed Priming Mitigates the Defence‐Growth Trade‐Off and Tailors Plant Response to Specific Pests

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Seed defence priming is emerging as a novel, cost‐efficient and environmentally safe tool for pest management. It has been proposed as a means to uncouple the defence‐growth trade‐off in plants by enhancing defence responses with minimal fitness costs, but the mechanisms underlying this role remain elusive.
Lucia Talavera‐Mateo   +5 more
wiley   +1 more source

Nicotinatfermentation in Eubacterium barkeri [PDF]

open access: yes, 2005
Aus EcoRI- und BamHI/BglII-Phagen-Genbänken von Eubacterium barkeri wurde mit Hilfe Digoxigenin-markierten homologen DNA-Sonden, direkter genomischer Sequenzierung und Seegene Speedwalking ein Gencluster von 23 kbp kloniert, das für die Enzyme der ...
Al Hapel, Ashraf, Buckel, W. (Prof. Dr.)
core   +1 more source

Exploring the Potential and Evaluating Hydrocarbon Degradation by Novel Antarctic Dietzia and Pusillimonas Isolates From a Pristine Environment

open access: yesEnvironmental Microbiology Reports, Volume 18, Issue 1, February 2026.
The Antarctic Dietzia and Pusillimonas isolates were tested for bioremediation applications. Genomic analyses revealed the potential to degrade complex organic compounds, potential virulence factors and resistance genes. Physiological assays showed a wide range of adaptation to abiotic factors and sensitivity to different groups of antibiotics ...
Tomasz Krucoń   +4 more
wiley   +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]

open access: yes, 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   +7 more
core   +1 more source

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

open access: yes, 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   +6 more
core   +1 more source

Structure and Function of the Acetylpolyamine Amidohydrolase from the Deep Earth Halophile Marinobacter subterrani.

open access: yesBiochemistry, 2019
Polyamines are small organic cations essential for cellular function in all kingdoms of life. Polyamine metabolism is regulated by enzyme-catalyzed acetylation-deacetylation cycles in similar fashion to the epigenetic regulation of histone function in ...
J. D. Osko   +3 more
semanticscholar   +1 more source

Untersuchungen zum Ursprung der Substratspezifität von Enzymen der Amidohydrolase‐Superfamilie

open access: yesAngewandte Chemie, Volume 138, Issue 4, 22 January 2026.
Umfassende Analysen zweier Enzymklassen aus der Amidohydrolase‐Superfamilie (AHS) ergaben, dass die Katalyse über eine 1,4‐ bzw. 1,6‐nukleophile konjugierte Addition abläuft und diese Eigenschaft die Substratspezifität bestimmt. Obwohl alle Substrate und Produkte vollständig achiral sind, führt dieser mechanistische Unterschied zu einer invertierten ...
Lukas Drexler   +3 more
wiley   +1 more source

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