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Propagative roots: roots that form adventitious buds that develop into aboveground shoots, termed suckers, which form new plants, as in common milkweed (Asclepias syriaca), Canada thistle (Cirsium arvense), and many others. [35] Photosynthetic roots: roots that are green and
A mycorrhiza (from Ancient Greek μύκης (múkēs) ' fungus ' and ῥίζα (rhíza) ' root '; pl. mycorrhizae, mycorrhiza, or mycorrhizas) [1] is a symbiotic association between a fungus and a plant. [2] The term mycorrhiza refers to the role of the fungus in the plant's rhizosphere, the plant root system and its surroundings.
Water too is essential for photosynthesis; roots compete to maximize water uptake from soil. [97] Some plants have deep roots that are able to locate water stored deep underground, and others have shallower roots that are capable of extending longer distances to collect recent rainwater. [97] Minerals are important for plant growth and ...
Myco-heterotrophic roots of Monotropa uniflora with Russula brevipes mycelium. Full (or obligate) myco-heterotrophy exists when a non-photosynthetic plant (a plant largely lacking in chlorophyll or otherwise lacking a functional photosystem) gets all of its food from the fungi that it parasitizes. Partial (or facultative) myco-heterotrophy ...
The bulk of these plants consists only of flat, cord-like, green roots with distinctive "track marks". These white track marks are called pneumatodes and function in much the same manner as stomata allowing the photosynthetic roots to perform gas exchange to support photosynthesis .
The flat, cord-like green roots constitute the bulk of the mature plant. They bear distinctive white "track marks", for which the technical term is pneumatodes, which are believed to function partly like stomata, enabling the photosynthetic roots to perform the gas exchange necessary for respiration and photosynthesis.
Photosynthesis usually refers to oxygenic photosynthesis, a process that produces oxygen. Photosynthetic organisms store the chemical energy so produced within intracellular organic compounds (compounds containing carbon) like sugars, glycogen , cellulose and starches .
The velamen of an orchid is the white or gray covering of aerial roots (when dry, and usually more green when wet as a result of the appearance of underlying photosynthetic structures). It is many cell layers thick and capable of absorbing atmospheric moisture and nutrients, but its main function may lie in protecting the underlying cells ...