thallus

IPA: θˈæɫʌs

Examples of "thallus" in Sentences

The thallus consists of 3 or 4 layers of cells or hyphae.
CO2 exchange and thallus nitrogen across 75 contrasting lichen associations from different climate zones.
Most lichens are adapted to such effects by forming a mechanically solid thallus firmly attached to the substrate.
Photorepair of radiation-damaged DNA in Cladonia requires not only light, but also high temperature and a hydrated thallus [125].
In the latter case, small powdery clusters of hyphae and algae, called soredia are formed and cut off from the thallus as it grows.
Rapid water loss inactivates the thallus, and in the inactive state the lichen is safe from heat-induced respiratory loss and heat stress [119].
The fungus and algal cells of lichens are associated together in a spongy thallus which can range in diameter from less than 1 millimeter (mm) to more than 2 meters (m).
However, the sensitivity of spores is not equivalent to the sensitivity of the metabolic machinery of the vegetative body of a fungus (i.e., the thallus or mycelium) that produces the spores.
These are plants growing in sea or fresh water, or on damp surfaces, with a filamentous, or more rarely a leaf-like pulverulent or gelatinous thallus; the last two forms essentially microscopic.
Buffoni Hall et al. [123] demonstrated that in Cladonia arbuscula ssp. mitis an increase in phenolic substances is specifically induced by UV-B radiation, and that this increase leads to attenuation of the UV-B radiation penetrating into the thallus.