Temporal and spacial distribution of mannopine synthase (mas) promoter activity was determined throughout the development of transgenic tobacco plants using bacterial luciferase luxA and luxB as reporter genes. Luciferase activity was determined by luminometry in vitro and visualized by computer-enhanced single-photon video imaging in vivo. The activity of the mas dual promoters increased basip...

Gravity is a common stimulus affecting plant growth and development, from seed germination to positioning of flowers for pollination and seeds for dispersal. Classic models of plant gravitropism have revolved around biophysical perception of the gravity stimulus and the effects of plant growth regulators on the growth response. Transcriptional regulation of the gravitropic mechanism has been la...

The phytohormone auxin plays a critical role in regulation of plant growth and development as well as plant responses to abiotic stresses. This is mainly achieved through its uneven distribution in plant via a polar auxin transport process. Auxin transporters are major players in polar auxin transport. The AUXIN RESISTENT 1/LIKE AUX1 (AUX/LAX) auxin influx carriers belong to the amino acid perm...

-promoters include control of zoonotic pathogens i. Antibiotic growth promoters enhance the efficiency of nutrient resistance in pathogenic bacteria and it has -promoters imposes a selection pressure for bacteria that are resistant to continued use of antimicrobial

Among the factors that have influenced livestock industrialization in 20th century, implications of substances promote fattening and animal growth (growth promoters) not been thoroughly addressed. Their role transformation Spanish farming is key question this article. A wide range these became available mid-twentieth century use peaked 1970s 1980s. We compared veterinary, livestock, specialized...

The study aimed to evaluate the effect of supplementation an additive based on plant and spice extracts in broiler chicken diets productive performance, carcass yield, meat quality. 704 male chicks were distributed a completely randomized experimental design with 4 treatment, replicates 44 chickens each. consisted Diet 1: Control diet; 2: diet + antibiotic growth promoters (AGP); 3: vegetable (...

Auxin plays an essential role in regulating Arabidopsis growth and development. YUCCA (YUC) family genes encode flavin monooxygenases, which are rate-limiting enzymes the auxin biosynthetic pathway. Previous studies showed that YUC8 overexpression (YUC8 OE), as well ectopic expression of driven by GL2 (GLABRA 2) TT12 (TRANSPARENT TESTA 12) promoters, specifically expressed epidermis inner seed ...

The Arabidopsis thaliana MAP65-1 and MAP65-2 genes are members of the larger eukaryotic MAP65/ASE1/PRC gene family of microtubule-associated proteins. We created fluorescent protein fusions driven by native promoters that colocalized MAP65-1 and MAP65-2 to a subset of interphase microtubule bundles in all epidermal hypocotyl cells. MAP65-1 and MAP65-2 labeling was highly dynamic within microtub...

The use of phosphate solubilizing bacteria as inoculants simultaneously increases P uptake by the plant and crop yield. Strains from the genera Pseudomonas, Bacillus and Rhizobium are among the most powerful phosphate solubilizers. The principal mechanism for mineral phosphate solubilization is the production of organic acids, and acid phosphatases play a major role in the mineralization of org...

individual grain weight of wheat kernels differs with their positions on a spike. cultivation practices (such as fertilizer nitrogen and plant growth regulators application) can be used to improve weight of basal and distal kernels. for this purpose, two experiments based on randomized complete block design were carried out with three replications. the aim of this research was to study the mech...