Support Structures, Plants
Land
plants can be divided into plants with woody stems and plants with
soft stems (non-woody plants).
Woody plants are supported by woody tissues. These tissues are arranged closely together are densely packed. In addition they can also be supported by the following.
Special support for non-woody (soft stem) plants include the following
Aquatic plants such as
o elodea,
o hydrilla,
o lotus plant and
o water hyacinth
use the help of water buoyancy for support.
Other types of plants, such as yam plant, use the turgidity of their cells to keep them upright.
s yam plant, use the turgidity of their cells to keep them upright.
Woody plants are supported by woody tissues. These tissues are arranged closely together are densely packed. In addition they can also be supported by the following.
| stilt roots | mangrove
trees,
banyan trees, |
| buttress roots | casuarina trees, flame of the forest, meranti trees, durian trees, angsana trees |
Special support for non-woody (soft stem) plants include the following
| special
support |
Examples |
| thorns | roses, bougainvillea |
| tendrils | gourd plants, long beans, morning
glory, cucumber |
| prop roots | maize, pandan plant |
| clasping roots | money plants, pepper plants,
orchids |
Aquatic plants such as
o elodea,
o hydrilla,
o lotus plant and
o water hyacinth
use the help of water buoyancy for support.
Other types of plants, such as yam plant, use the turgidity of their cells to keep them upright.
s yam plant, use the turgidity of their cells to keep them upright.
Sistem Sokongan, Tumbuhan
Tumbuhan darat boleh dibahagikan kepada tumbuhan berkayu dan tumbuhan tidak berkayu.
Tumbuhan berkayu disokong oleh tisu-tisu berkayu. Tisu-tisu ini disusun padat dan rapat. Selain daripada itu, tumbuhan-tumbuhan tidak berkayu disokong oleh
| Akar jangkang | pokok baku , pokok ara jejawi |
| akar banir | pokok kasuarina, pokok semarak api, pokok meranti, pokok durian, pokok angsana |
Struktur sokongan khas pada tumbuhan tidak berkayu termasuk
| struktur
sokongan khas |
Contoh |
| duri | bunga mawar, bunga kertas |
| sulur paut | pokok labu, pokok kacang pis,
timun |
| akar sokong |
pokok pandan, pokok jagung |
| akar cengkam/ akar dakap |
pokok duit-duit, pokok lada,
orkid |
Pokok akuatik seperti
o elodea,
o hydrilla,
o bunga teratai dan
o eceng gondok (water hyacinth)
menggunakan bantuan pengapungan air untuk sokongan.
Jenis-jenis tumbuhan lain seperti pokok keladi menggunakan pengembungan sel untuk menegakkan batangnya.