Study Set Content:
Pull the plant deeper into the soil
Contractile roots
continue to pull down until an area of relatively stable temparature is reached
Contractile roots
some tropical trees have these growing in shallow soils toward the base of the trunk, giving them great stability
Buttress roots
have no chlorophyll and have become dependent on chlorophyll-bearing plants for their nutrition
Dodders, broomrapes,and pinedrops
develop in the stem in contact with the host. Penetrate the outer tissues and establish connections with the xylem and phloem
Haustoria-peglike projections
Example of Haustoria-peglike projections
Indian warrior and mistletoe
an organism that lacks chlorophyll and obtain nutrients from organic matter
Saprophyte
example of saprophyte
Fungi
grown on other plants and obtain moisture and nutrients from the air and rain
Epiphytes
examples of epiphytes
orchids
parasite of fungi in the soil
Epiparasite
example of epiparasite
Indian pipe
obtains some or all of its carbon from a fungus rather than from photosynthesis
Myco-heterotroph
example of myco-heterotroph
Indian pipe
Mutualistic association of roots and fungus
Mycorrhizae
It is essential to normal growth and development of forest trees as well as most herbaceous plants and facilitate the uptake of water and inorganic ions
Mycorrhizae
Thick, encrusting layer
Mantle
found in trees like pines and oaks
ectotrophic
hyphae invades cells of the cortex and mantle is not present
Endotrophic
example of endotrophic
Woody and herbaceous plants
