Results 51 to 60 of about 1,256,035 (309)

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source

RESPONSE OF THREE SUGARCANE VARIETIES TO NUBMER OF PLOUGHINGS AND NITROGEN APPLICATION. [PDF]

Journal of Plant Production, 2005
Two field trials were carried out at El-Mattana Agricultural Research Station, (Qena Governorate) in 2001/2002 and 2002/2003 seasons. Each experiment included 18-treatments representing three number of ploughings, 2, 3 and 4, three varieties performance ...
A. Ahmed,, G. El-Sayed, A. Osman, R. Abo El- Ghait   +3 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Breeding sugar beet for the resistance to abiotic environmental factors

Овощи России
Relevance. The selection for productivity and stability on different stages in the breeding process includes an assessment of the adaptive capacity and genotypes ecological stability. Therefore breeding for the resistance to abiotic environmental factors
T. V. Vostrikova, M. A. Bogomolov, A. A. Senyutin, L. N. Putilina   +3 more
doaj   +1 more source

MdERDL6-mediated glucose efflux to the cytosol promotes sugar accumulation in the vacuole through up-regulating TSTs in apple and tomato

Proceedings of the National Academy of Sciences of the United States of America, 2020
Significance Sugar transport across membranes is essential for maintaining cellular sugar homeostasis and metabolic balance in plant cells. However, it remains unclear how this process is regulated among different classes of sugar transporters.
Lingcheng Zhu, Baiyun Li, Limin Wu, Huixia Li, Zhengyang Wang, Xiaoyu Wei, Baiquan Ma, Yanfeng Zhang, F. Ma, Yong-ling Ruan, Mingjun Li   +10 more
semanticscholar   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

FEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee, Junho Jeong, Chae Yeong Lee, Hyunjoon Cho, Man Hwan Oh, Je Chul Lee, Jee‐Young Lee, Yangmee Kim   +7 more
wiley   +1 more source

EFFECT OF INOCULUM LEVEL, TYPE, PLANT AGE AND ASSESSMENT DATE ON EVALUATING SUGAR BEET RESISTANCE METHODS FOR ROOT-KNOT NEMATODE, Meloidogyne incognita [PDF]

Journal of Plant Protection and Pathology, 2009
The objectives of this study were to determine the effect of inoculum level, inoculation date, assessment date and inoculum type, on evaluating M. incognita resistance in sugar beet, and to optimize the resistance screening technique used to categorize ...
M. Maareg, I. Gohar,
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

Effects of circadian clock and light on melatonin concentration in Hypericum perforatum L. (St. John’s Wort)

Botanical Studies, 2020
Background Melatonin acts as a signaling hormone and entraining agent in many organisms. We studied the spatiotemporal regulation and influence of light (photoperiods, intensities, and spectral qualities) on melatonin concentration in the medicinal herb ...
Ming-Hsiu Chung, Tzu-Shing Deng
doaj   +1 more source