Various transcriptional networks and plant hormones have been implicated in controlling different aspects of potato tuber formation. Due to its broad impact on many plant developmental processes, a role for auxin in tuber initiation has been suggested but never fully resolved. Here, auxin concentrations were measured throughout the plant prior to and during the process of tuber formation. Auxin...

r primordia of length 0-5-1-4 mm, (iii) stalks of open hydranths (polarized, the stolon grows out of the cut basal end). (b) Immediate differentiation of a polyp. Shown by (i) stalk primordia longer than 1-7 mm "' and some between 1-4 and 1-7 mm, (ii) bulbs greater than 0-28 mm diameter (i.e. had reached contractile stage), (iii) bulb primordia of all sizes having a 'stalk' longer than 0-35 mm;...

Outgrowth of the stolon in the hydroid Cordylophora has been studied at the cellular level. Staining experiments and histological examination indicate that the generative region of the stolon is at its base where interstitial cells are prominent. Cells in the ectoderm at the stolon tip appear to be actively synthesizing new perisarc as the tip advances over the substrate, rather than involved i...

Studies of mitochondrial redox signaling predict that the colonial hydroids Eirene viridula and Podocoryna carnea should respond to manipulations of reactive oxygen species (ROS). Both species encrust surfaces with feeding polyps connected by networks of stolons; P. carnea is more 'sheet-like' with closely spaced polyps and short stolons, while E. viridula is more 'runner-like' with widely spac...

White clover (Trifolium repens L.) is at a disadvantage to perennial ryegrass (Lolium perenne L.; PRG) due its limited cold tolerance and low growth rates colder temperatures, which can affect subsequent spring herbage dry matter (DM) availability. The effect of PRG ploidy on white morphology over winter, recovery in the following growing season, poorly understood. objective this study was comp...

Gamma-ray irradiation as a physical mutagen has high penetrating power. Therefore, it is most often used to increase genetic variability or produce new mutant plants. This research was conducted obtain the lethal dose of gamma-rays in Leersia hexandra The plant part single node stolon which had length 10 cm with middle stolon. doses given were 0, 25, 50, 75, 100 Gy. Stolons inserted into plasti...

Adaptive evolution of phenotypic plasticity requires that plastic genotypes have the highest global fitness. We studied selection by spatial heterogeneity of interspecific competition and flooding, and by temporal heterogeneity of flooding on morphological plasticity of 52 genotypes of the clonal shore plant Ranunculus reptans. Competition reduced clone size, rosette size, leaf length and stolo...

MicroRNAs (miRNAs) are a class of endogenous, non-coding small RNAs that play an important role in transcriptional and post-transcriptional gene regulation. However, the sequence information and functions of miRNAs are still unexplored in Tulipa edulis. In this study, high-throughput sequencing was used to identify small RNAs in stolon formation stages (stage 1, 2, and 3) in T. edulis. A total ...