In organisms that propagate by agametic cloning, the parental body is the reproductive unit and fitness increases with clonal size, so that colonial metazoans, despite lack of experimental data, have been considered potentially immortal. Using asexual propagation rate as a measure of somatic performance, and telomerase activity and relative telomere length as molecular markers of senescence, ol...

The article presents the results of studying some components in vitro technology clonal rootstocks and common cherry varieties, which allow to increase efficiency its application tested varieties rootstocks. Differences viability intensity development explants depending on timing their introduction into crop, characteristics genotypes composition nutrient media were established. influence mediu...

This study aimed to propagate lipote cuttings through clonal propagation using different growth hormones. The clones were raised in a non-misted closed chamber and transplanted into polyethylene bags for observation of their early growth. performance the was analyzed terms height, diameter, leaf number, chlorophyll content, area, shoot biomass, root total biomass. After three months, terminated...

Tissue culture techniques can be beneficial for quick clonal propagation and production of disease-free plants of purple passion fruit as one of the most important medicinal and ornamental plants. These techniques are essential tools for the production of transgenic plants and high-value phytochemicals. The present study was planned to introduce an efficient in vitro propagation for pu...

Sea cucumbers are increasingly exploited for human consumption and for their curative properties, and many wild populations are now depleted or in danger of extinction. While aquaculture is seen as an alternative to fisheries and as a mean to restore wild populations, more knowledge is needed on their reproductive strategies to render this practice efficient, notably for fissiparous holothurian...

Asexual propagation techniques for producing good quality germplasm breeding and dissemination purposes have proven difficult acacia species comprised of mature planting material. The study was conducted to the effect rejuvenation on rooting ability cuttings. Shoots were induced from lower branch by cutting a part crown leaving it horizontally bench under misting system. harvested further used ...

The majority of Toxoplasma gondii strains from a variety of human and animal sources have been grouped into three highly clonal but closely related lineages. The low occurrence of nucleotide differences among the three predominant lineages and their unusual dimorphic allelic composition suggest that they have arisen from a recent common ancestry. Less than 1% of the previously studied strains c...

Resistance strategies of clonal organs, and parent and offspring shoots of Phragmites australis (common reed) to heavy metal pollution in soils are not well known. To clarify the tolerance or resistance strategies in reeds, we conducted a pot experiment with five levels of Pb concentration (0∼4,500 mg kg-1) in flood and drought conditions. Lead toxicity had no inhibitory effect on the number of...