A fundamental requirement for life is the ability of cells to divide properly and to pass on to their daughters a full complement of genetic material. The centromere of the chromosome is essential for this process, as it provides the DNA sequences on which the kinetochore (the proteinaceous structure that links centromeric DNA to the spindle microtubules) assembles to allow segregation of the c...

In the budding yeast, Saccharomyces cerevisiae, actively transcribed tRNA genes can negatively regulate adjacent RNA polymerase II (pol II)-transcribed promoters. This tRNA gene-mediated silencing is independent of the orientation of the tRNA gene and does not require direct, steric interference with the binding of either upstream pol II factors or the pol II holoenzyme. A mutant was isolated i...

Vegetative propagation of Persian walnut (Juglans regia L.) is more difficult than many other fruit trees. Temperature, relative humidity, water status the scion and rootstock, nutrient uptake, time grafting, physiological condition type all can affect grafting success. An experiment was conducted to evaluate effects post-budding irrigation frequency (3, 7 10-days), budding date (14 June, 5 26 ...

The present study was conducted in Ariyalur district of Tamil Nadu. Totally 100 respondents were randomly selected and interviewed from the district. data gathered form pre-structured interview schedule. shows that different marketing channels with their efficiency major constraints faced by maize growers production three are shown channel I 10.15, II 6.72 III 3.84. For eccentric rainfall, high...

ESCRT-I, -II, and -III protein complexes are sequentially recruited to endosomal membranes, where they orchestrate protein sorting and MVB biogenesis. In addition, they play a critical role in retrovirus budding. Structural understanding of ESCRT interaction networks is largely lacking. The 3.6 A structure of the yeast ESCRT-II core presented here reveals a trilobal complex containing two copie...

The studies conducted in 2007–2008 were aimed to assess how the developmental stage of common oregano affected the quality and quantity of the herb yield. The field experiment was established with the use of random blocks in four repetitions. Oregano was grown from seeding produced in a greenhouse. Herbage harvest of one-year-old plants was conducted before flowering, in budding phase, at the b...

Purpose. To study how the content of main nutrients, amount and ratio structural nonstructural carbohydrates in green mass alfalfa changes during process growth development. establish a phase which produced feed will have high biological value. Methods. Sampling was carried out accordance with State Standard Ukraine (SSU) ISO 6497:2005, determination moisture other volatile substances – SSU 649...

Shapes and shape transformations of vesicles are considered theoretically within the spontaneous curvature model for three cases. (i) For free vesicles, the whole phase diagram is presented which includes pear-shaped vesicles and a line of limit shapes related to budding. (ii) For toroidal vesicles, three branches of solutions with low energy are found. (iii) An extension of this model to the a...