Results 91 to 100 of about 28,661 (227)

Plasma putrescine, spermidine, spermine and N-acetyl-putrescine shown as individual concentrations across a given menstrual cycle in 28 women.

open access: yes, 2018
Plasma putrescine, spermidine, spermine and N-acetyl-putrescine shown as individual concentrations across a given menstrual cycle in 28 women.
Andreas Meinitzer (412847)   +9 more
core   +1 more source

Multifunctional Bio‐Based Packaging for Perishable Foods: Structural Design, Scalable Fabrication, and Versatile Applications

open access: yesAdvanced Materials, Volume 38, Issue 33, 12 June 2026.
An overview of design principles and scalable fabrication strategies for multifunctional bio‐based packaging. Radiative cooling films, modified‐atmosphere films/membranes, active antimicrobial/antioxidant platforms, intelligent optical/electrochemical labels, and superhydrophobic surfaces are co‐engineered from material chemistry to mesoscale structure
Lei Zhang   +6 more
wiley   +1 more source

Structural investigations of N-carbamoylputrescine amidohydrolase from Medicago truncatula: insights into the ultimate step of putrescine biosynthesis in plants

open access: yesFrontiers in Plant Science, 2016
Putrescine, 1,4-diaminobutane, is an intermediate in the biosynthesis of more complexed polyamines, spermidine and spermine. Unlike other eukaryotes, plants have evolved a multistep pathway for putrescine biosynthesis that utilizes arginine. In the final
Bartosz eSekula   +4 more
doaj   +1 more source

Plant‐Derived Melatonin Inhibits Bacterial Virulence via CpxA/R Two‐Component System

open access: yesAdvanced Science, Volume 13, Issue 32, 9 June 2026.
Plant‐derived melatonin is sensed by CpxAE48/T51, which inhibits the phosphorylation cascade transmission from CpxAH240 to CpxRD52, resulting in the inhibition of DNA‐binding capacity of CpxR and subsequent T3SS genes expression in Pst DC3000. ABSTRACT In defending against pathogens, plants deploy diverse secondary metabolites and signaling molecules ...
Jin‐Wei Wei   +7 more
wiley   +1 more source

Effects of putrescine and low temperature on the apoplastic antioxidant enzymes in the leaves of two wheat cultivars

open access: yesPlant, Soil and Environment, 2009
The effects of putrescine (a polyamine), low temperature and their combinations on the activities of apoplastic antioxidant enzymes were studied in the leaves of two wheat cultivars, winter (Dogu-88) and spring (Gerek-79). Fifteen-day-old wheat seedlings
T. Çakmak, Ö. Atici
doaj   +1 more source

Putrescine uptake and release by colon cancer cells

open access: yes, 1989
We have investigated the uptake and release of [3H]putrescine by a human colon adenocarcinoma cell line (LoVo) maintained on filter inserts. This culture system permits the cells to develop morphological polarity and provides separate access to the ...
S. A. McCormack, L. R. Johnson
core   +1 more source

Optimizing Pichia Pastoris Cell‐Free Protein Synthesis to Improve Economics

open access: yesBiotechnology and Bioengineering, Volume 123, Issue 6, Page 1708-1720, June 2026.
ABSTRACT Cell‐free protein synthesis (CFPS) is a powerful and versatile platform that supports a wide range of applications, from fundamental studies of the genetic code to scalable and rapid protein production. The recently developed Pichia pastoris CFPS combines advantages of both prokaryotic and eukaryotic systems, including a rapid growth rate ...
Rui Wu   +4 more
wiley   +1 more source

Impact and mechanisms of cinnamaldehyde on putrescine production by Obesumbacterium proteus OP216735 during the process of Xinjiang sausage

open access: yesFood Science and Human Wellness
This study investigated the effects of cinnamaldehyde on putrescine production by Obesumbacterium proteus in pure cultures and Xinjiang sausage. Scanning electron microscopy was used to analyze the cell morphology of the test bacteria, and reverse ...
Honghong Yu, Shiyi Zhu, Shiling Lu
doaj   +1 more source

Pre-storage putrescine treatment maintains quality and prolongs postharvest life of Musa acuminata L.

open access: yesAdvances in Horticultural Science, 2017
The study was carried out to determine the effect of putrescine on quality and postharvest life of Musa acuminata L. during storage. The fruits were dipped at different concentrations of putrescine (0.5, 1 and 2 mM for 30 min) and distilled water as ...
M.S. Hosseini, S.M. Zahedi, Z. Fakhar
doaj   +1 more source

Transport of putrescine in the isolated rabbit intestine

open access: yes, 1992
International audienceThe transepithelial fluxes of putrescine were studied in sections of the three segments of rabbit intestine mounted in an Ussing chamber.
Brachet, P.   +3 more
core   +1 more source

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