linkedin post 2020-09-04 04:26:30
CLASSES OF SIGNALS. "Not only hydraulic and chemical signals, but also electrical signals act on the perception of environmental stimuli and trigger biochemical and physiological changes such as elongation, growth, water transport, displacement of substances in phloem, reduction of turgor pressure, variation of photosynthesis, respiration, and gene expression, mediating the relation between the plant and its external environment." http://link.springer.com/article/10.1007/s11738-015-1950-4 View in LinkedIn
linkedin post 2020-09-04 04:25:28
ACUTE REACTIONS. "Various local irritations (e.g., high temperature, cooling, crush, prick, and touch) can induce the generation and propagation of ESs in plants." (ESs = electrical signals). https://lnkd.in/dagC6fe View in LinkedIn
linkedin post 2020-09-04 04:23:41
MECHANICAL STIMULI. “The ability to sense and respond to a wide variety of mechanical stimuli—gravity, touch, osmotic pressure, or the resistance of the cell wall—is a critical feature of every plant cell, whether or not it is specialized for mechanotransduction.” https://lnkd.in/dazh-wp View in LinkedIn
linkedin post 2020-09-05 05:37:40
RADIAL TO BILATERAL SHIFT. "The current model, mostly derived from A. majus, involves sequential steps leading to a shift from radial to bilateral symmetry in the petal whorl: (1) CYC2-like genes are dorsally restricted; (2) CYC2-like genes up-regulate RADIALIS (RAD) in the dorsal region; (3) RAD negatively regulates weakly ubiquitous DIVARICATA (DIV), leaving DIV to localize in the outer epidermis of only the ventral region; and (4) DIV possibly up-regulates AmMYBML1, which functions in forming trichomes, conical cells, and the hinge of the ventral petal." http://onlinelibrary.wiley.com/doi/10.1111/nph.13198/full View in LinkedIn
linkedin post 2020-09-05 05:36:32
MODULAR SYMMETRY GENES. "Studies in model systems can start to piece together a modular GRN that underlies floral symmetry and to investigate how the dynamics of this network can lead to different symmetry." patterns." (GRN = gene regulatory networks). http://onlinelibrary.wiley.com/doi/10.1111/nph.13198/full View in LinkedIn
linkedin post 2020-09-05 05:35:22
SNAPDRAGON SYMMETRY MUTANTS. "Thus mutants of cyc/dich and rad result in radially symmetrical, ventralized flowers, while mutants of div (in a cyc/dich background) result in radially symmetrical, lateralized flowers in A. majus." http://onlinelibrary.wiley.com/doi/10.1111/nph.13198/full View in LinkedIn
linkedin post 2020-09-05 05:33:08
SNAPDRAGON CASE STUDY. "A proposed molecular model of floral symmetry development in A. majus hypothesizes that the two TCP genes CYC (CYCLOIDEA) and DICH (DICHOTOMA), formed from a duplication event specific to the Antirrhineae, control the activation of the MYB TF RADIALIS (RAD). RAD is expressed in the dorsal regions where CYC2 genes are also expressed. RAD in turn inhibits another MYB TF, DIVARICATA (DIV), restricting DIV to function only in the ventral portion of the corolla." http://onlinelibrary.wiley.com/doi/10.1111/nph.13198/full View in LinkedIn
linkedin post 2020-09-05 05:31:35
DISTAL GENE RESTRICTION. "This indicates that a similar pattern of differentially restricted expression occurs independently in the evolution of bilateral symmetry from radially symmetric ancestors. Therefore, we find independent cooption of not just the same genes, but also of the dynamic molecular process involving restricted gene expression across the floral apex." http://onlinelibrary.wiley.com/doi/10.1111/nph.13198/full View in LinkedIn
linkedin post 2020-09-05 05:30:25
UNEQUAL GENE RESTRICTION. "Similar patterns in which one duplicate is more dorsally restricted than the other exist across the eudicots (Antirrhinum majus, Malphigiaceae, Dipsacales and Pisum sativum)." http://onlinelibrary.wiley.com/doi/10.1111/nph.13198/full View in LinkedIn