Happy New Year to All!
Welcome back to our blog here at Tree Awareness. Throughout my daily travels and experiences, I observe or do things that make me think it may be a good subject to write about.
Since hurricaneSandy, my father has been staying with me. In the mornings, we sit at the kitchen table, drink coffee and normally do the crossword puzzle.
I have 2 containers of herbs and other plants, on my table, that love the morning sun. My father said “I know there is a word for that,” meaning; why the plants lean toward the sun.
This may be a little heavy for just after the New Year, so I will keep it light!
HELIOTROPISM or PHOTOTROPISM
Simply put, leaning toward the sun.
For centuries, poets, philosophers, artists, and scientists have noted and studied the phototropic movement of plants. In one of the earliest depictions of plant phototropism, Venus, the ancient goddess of love, transforms Clytie, a water nymph, into a plant because of her infatuation with Apollo, the sun god. Associated with her metamorphosis into a green plant, Clytie turns and follows the movement of Apollo. This tale of unrequited love is based on the assumption, developed by the early classical philosophers, that plants exhibit completely passive responses to the environment.
I just like the photo!
Example of Gravitropism in the remains of a cellar of a Roman villa in the Archeological Park in Baia, Italy
Growing in response to gravity!
- Chemotropism, movement or growth in response to chemicals
- Geotropism (or gravitropism), movement or growth in response to gravity
- Heliotropism, movement or growth in response to sunlight
- Sonotropism, movement or growth in response to sound.
- Hydrotropism, movement or growth in response to water
- Phototropism, movement or growth in response to lights or colors of light (e.g.- the sunflower)
- Thermotropism, movement or growth in response to temperature
- Electrotropism, movement or growth in response to an electric field
- Thigmotropism, movement or growth in response to touch or contact
- Exotropism, continuation of growth “outward,” i.e. in the previously established direction