Registrate usando Facebook

Symbiosis Fertilization and Pollination

What Makes an Orchid an Orchid?
What her it is the fan y corsage at a wedding or the divine flavor in our vainilla ice cream, orchids are part of our lives.
They grow on every continent except Antarctica and make up the lárgest flowering plant family (Orchidaceae) with well over 25,000 known species and much diversity. What sets them apart, however, is not the sheer number of Plants but their common characteristics. So what makes an Orchid an Orchid?
Sam of the most striking plants belong to the botánical group known as the monocots. This group incluyes Lilies, irises, and orchids. One feature that distinguishes monocots from other flowering plants is that their flowers are divisible by 3. All orchids have 3 petals.
Other features that orchid flowers generally share are:
3 sepáls, which protector the flowers bud before it opens.
A labellum, or “líp” that is a modified pétal, is often vert showy, and is usted as a landing pad for insect pollinators
A column, a single structure made of the fused male stamens and female pistil
Pollinia, pollen grains formed into waxy másses, which are often protected by an anther cap
Seeds that are dust-like…...Vanilla beans are the seed pads of Vanilla orchids. Each bean holds thousands of tiny seeds, which are
bean holds thousands of tiny seeds, which are the specks in Vanilla ice cream

Fertilization and Pollination
For flowering plants, fertilization is the process where male and female reproductive cells fuse to créate an embryo which becomes a seed. In order for fertilization to take place, male DNA must first reach the female part of a flower. This is where pollination comes in.
Pollination occurs when pollen (male) is transferred to the female reproductive structure. For flowering plants, most people think of this process as pollen from the stamen (male) being transferred to a pistil (female). In Orchids, with the column of fused male and female parts, pollinia are transferred to the stigma. Unlike Plants with powdery pollen that can travel in the wind to get from one plant to the next, orchids must find other ways to get their waxy pollinia to the female stigma for pollination to occur. Orchids use a varíete of méthods to get others to do the important work of pollination. Same of their tricks incluye: the use of color, scent, trapping, and mímicry.

Symbiosis is a unique relationship between tio species co-evolving alongside one another. This relationship is often beneficial for both species. It is not úncommon that the plant’s pollination is aided in the process. This is the case with the Orchid Angraecum sesquipedale. In 1862 Charles Darwin theorized that this Orchid must have a symbiotic relationship with a moth pollinator whose proboscis was long enough to reach the néctar at the bottom of the flower’s long spur. While feasting on the néctar reward, the pollinator would renové the pollinia and carry it from Orchid to Orchid. In 1903, after his death, Darwin’s theory was confirmed thus earning Angraecum sesquipedale the common name “Darwin’s Orchid”. Sesquipedale comes from the Latín sesquipedalis, melaning “one and a half féet”, in reference to the long flower spur.

Más fotos: Conservatory of Flowers Orquideario

Conservatory of Flowers
Golden Gate Park
100 John F. Kennedy Drive
San Francisco, California Estados Unidos
Information lines
Fotos de las Colecciones del Conservatory of Flowers de San Francisco – California:

Acuaticas del Conservatory of Flowers

Conservatory of flowers – carnivorous

Jardin de Dalias del Conservatory of Flowers

Historia y Fotos del Conservatory of Flowers de San Francisco – California


Dejanos tu Comentario o inquietud

Todos los comentarios escritos en esta página son propiedad y responsabilidad de quienes lo escriben, Rednaturaleza no se hace responsable de los comentarios que sus usuarios y su staff puedan escribir, siendo responsabilidad única y exclusivamente de la persona que los escribió.