Results 91 to 100 of about 47,150 (283)
ABSTRACT Steroidal glycoalkaloids (SGAs) are toxic cholesterol‐derived secondary metabolites present in several Solanaceae species. In potato, tuber SGA levels are for reasons of toxicity of concern in both table and starch cultivars. In the latter, SGAs bind to proteins and fibres in starch production side‐streams and prevent their further uses as ...
Ying Liu +7 more
wiley +1 more source
ABSTRACT Nicotine is the most abundant alkaloid produced by Nicotiana species against insect herbivores. Although it has been known for decades that auxin can strongly inhibit nicotine biosynthesis, the underlying mechanisms have remained unclear.
Miyun Yang +3 more
wiley +1 more source
Putrescine accumulation in human pulmonary tumours [PDF]
Type II pneumocytes and Clara cells, both epithelial cells that possess an active uptake system for polyamines, have been identified as possible precursor cells of at least some types of lung tumours. In this study we have investigated whether human pulmonary tumours exhibit putrescine uptake. Lung slices from both tumoral tissue and non-tumoral tissue,
P H, Hoet +4 more
openaire +2 more sources
Polyamines play a pivotal role in plant growth and development by modulating primary metabolism and gene expression patterns. However, their regulatory effect on epigenetics is still not clear.
Imre Majláth +6 more
doaj +1 more source
Oxidative Stress Associated with Chilling Injury in Immature Fruit: Postharvest Technological and Biotechnological Solutions [PDF]
Immature, vegetable-like fruits are produced by crops of great economic importance, including cucumbers, zucchini, eggplants and bell peppers, among others. Because of their high respiration rates, associated with high rates of dehydration and metabolism,
Carvajal Moreno, Fátima +5 more
core +1 more source
ABSTRACT Low temperature is a critical abiotic stress that imposes major constraints on the sustainable development of the fruit tree industry. Although exogenous dopamine has been shown to enhance cold tolerance in plants, its molecular mechanisms in apple (Malus domestica) remain poorly understood.
Kexin Tan +9 more
wiley +1 more source
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
A role for antizyme inhibitor in cell proliferation [PDF]
Acknowledgments We thank Ewa Dahlberg and Lena Thiman for expert technical help with cell culturing and HPLC, respectively. The authors acknowledge financial support from the Portuguese Foundation for Science and Technology—SFRH/BD/46364/2008 (PhD ...
Cirenajwis, Helena +4 more
core +1 more source
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 +12 more
wiley +1 more source
Technological activities of Staphylococcus carnosus and Staphylococcus simulans strains isolated from fermented sausages [PDF]
The aim of this study was to determine the technological properties of 2 strains of Staphylococcus simulans (Ssm12, Ssm21) and 4 strains of S. carnosus (SC28, SC31, SC54 and SC55) for the selection of a potential starter cultures to employ in the ...
BLAIOTTA, GIUSEPPE +4 more
core +1 more source

