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  • mutants
  • Because meristem ontogenies between s mutants and normal plants are nearly identical, we proposed that s inflorescences might be highly branched due to a molecular delay in meristem maturation and termination that results in an extended period of indeterminacy, during which additional sympodial meristems, and therefore branches, develop. (pnas.org)
  • leaf
  • Some aspects of the fzt phenotype can be explained by reduced levels of known miRNAs, including miRNAs that influence meristem determinacy, phase change, and leaf polarity. (uncg.edu)
  • Classic experiments with photoperiod-sensitive plants have shown that exposure of a single leaf to inductive photoperiods can produce a graft-transmissible signal capable of promoting flowering at the shoot apex. (plantphysiol.org)
  • In tomato, the balance between florigen and anti-florigen affects flowering, meristem termination, and even leaf development. (plantae.org)
  • Among these are cotyledons, the variety of leaf types produced during the vegetative growth of the shoot, inflorescence bracts, and the highly modified leaves found in flowers and other reproductive structures. (pnas.org)
  • The objective of this study was to identify the effects of leaf and meristem removal (simulated herbivory within an exclosure) on fruit and flower production in four species ( Rhus glabra, Rosa arkansana, Lathyrus venosus, and Phlox pilosa ) which are known targets of deer herbivory. (biomedcentral.com)
  • The combination of leaf and meristem removal as well as recruitment limitation by deer, which selectively browse for these species, is likely to be one factor contributing to their low abundance in prairies. (biomedcentral.com)
  • The objective of this study was to identify the effects of leaf and meristem damage on fruit and flower production in four species of prairie plants that are known targets of deer herbivory. (biomedcentral.com)
  • 3) Does a combination of leaf removal and meristem removal have a greater impact on a plant than random leaf removal? (biomedcentral.com)
  • The number of flowers produced by Phlox (P = 0.6), Rosa (P = 0.13), and Rhus (P = 0.3) was not significantly affected by the leaf removal treatment when accounting for plant size. (biomedcentral.com)
  • inflorescences
  • Most cultivated tomatoes produce inflorescences with a few flowers arranged in a zigzag branching pattern ( Fig. 1 A - E ), but we previously showed that variants with highly branched inflorescences bearing hundreds of flowers arose more than a century ago due to loss-of-function mutations in a homeobox transcription factor encoded by the COMPOUND INFLORESCENCE ( S ) gene ( Fig. 1 G ) ( 10 ). (pnas.org)
  • indeterminate
  • Thus, there is a considerable variability in domesticated cultivars, which show pronounced differences in growth form, i.e., determinate vs. indeterminate, and growth habit, i.e. (frontiersin.org)
  • The maize fuzzy tassel (fzt) mutant has striking inflorescence defects with indeterminate meristems, fasciation, and alterations in sex determination. (uncg.edu)
  • maturation
  • From these data, we reveal that meristem maturation is an extremely gradual process defined molecularly by a "meristem maturation clock. (pnas.org)
  • Our systems genetics approach reveals that the program for inflorescence branching is initiated surprisingly early during meristem maturation and that evolutionary diversity in inflorescence architecture is modulated by heterochronic shifts in the acquisition of floral fate. (pnas.org)
  • morphology
  • Surprisingly, we find thousands of age-dependent expression changes, even when there is little change in meristem morphology. (pnas.org)
  • seeds
  • All cycads are dioceous, meaning they are either male or female so their cones produce either pollen or seeds, never both. (davesgarden.com)
  • The biological function of a flower is to mediate the union of male sperm with female ovum in order to produce seeds. (thefullwiki.org)
  • suggests
  • In roots, AtSUC1 was highly expressed and its expression profile in the different conditions tested suggests that it may play a role in sucrose unloading in roots and in root growth. (springer.com)
  • Meristem removal caused a greater response than defoliation alone in both Phlox and Rosa, which suggests that meristem loss has a greater effect on reproduction. (biomedcentral.com)
  • cells
  • The results show that they have good fluorescent property either to microspheres or to cells and fluorescent microspheres have good biocompatibility and property in sustained release of growth factors. (jove.com)
  • The obtained microspheres will be expected to realise the imaging of cells and materials and also the release of growth factor in tissue engineering or in cell culture. (jove.com)
  • meristem is a special tissue that contains actively growing and dividing cells. (encyclopedia.com)