linkedin post 2020-09-03 04:07:45
"PLANT NEUROBIOLOGY is a newly developed discipline in plant physiology, aimed at establishing the structure of information networks within the plant in order to understand how plants respond to environmental stimuli by means of electrochemical signals." Provocative naming of this new field may have been self-destructive. https://lnkd.in/dUMF8_P View in LinkedIn
linkedin post 2020-09-03 04:06:17
ELECTRICAL ACTIVITY in plants. Once just a woo-woo urban myth from tree-huggers; today a new academic discipline with good science. It is now clear from numerous perspectives that plants are remarkably complex, sentient and clever creatures. View in LinkedIn
linkedin post 2020-09-03 04:04:54
LARGELY UNKNOWN. "The specific sensory mechanisms available in plants for detecting sound are still unclear. No scientific studies that I am aware of have been conducted on the potential acoustic communicative abilities of plants." http://beheco.oxfordjournals.org/content/24/4/789.full View in LinkedIn
linkedin post 2020-09-05 05:28:56
DECOUPLED DUPLICATE GENES. "In Dipsacales, the first shift from radial to bilateral symmetry is correlated with a duplication event, resulting in two gene copies, and the partial restriction of both copies to exclude the ventral petal lobe. Subsequent shifts to more strongly bilaterally symmetrical flowers involved further restriction of the duplicate copies and a decoupling of expression, such that one copy is more dorsally restricted than the other." http://onlinelibrary.wiley.com/doi/10.1111/nph.13198/full View in LinkedIn
linkedin post 2020-09-05 05:26:47
DUAL SYMMETRY FLOWERS. "Nearly all characterized bilaterally symmetrical lineages contain two or more duplicates of CYC2 genes. Plants with floral heads (compact inflorescences) that contain both radial and bilaterally symmetric flowers, such as those in Asteraceae and Dipsaceae, appear to have the greatest numbers of CYC2 genes with differential expression tied to changes in floral symmetry across the inflorescence axis." http://onlinelibrary.wiley.com/doi/10.1111/nph.13198/full View in LinkedIn
linkedin post 2020-09-05 05:25:54
DEVELOPMENTAL CHANGES. “During floral development, symmetry may change: monosymmetric flowers may have a polysymmetric early phase; polysymmetric flowers may have a monosymmetric or even asymmetric early phase; more than one symmetry change is also possible.“ https://lnkd.in/dVQT3m7 View in LinkedIn
linkedin post 2020-09-05 05:22:37
FRAGMENT FROM NATURE continues from last weekend and concludes this weekend on the theme of floral symmetry. The genetics behind this symmetry have been thoroughly investigated, and are surprisingly simple, given the complex varieties of floral morphology. Flowers are designed for reproduction; 87% of plants are pollinated by animals, insects and birds, and and symmetry functions primarily to attract and to accurately guide plant pollinators to the structures that will make the next generation of plants. For this reason, symmetry is critical for the species. https://lnkd.in/dJGh9CE View in LinkedIn
linkedin post 2020-09-04 04:29:33
Mysterious calligraphy graffiti emerging. 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