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Common names for lichens may contain the word moss (e.g., "reindeer moss", "Iceland moss"), and lichens may superficially look like and grow with mosses, but they are not closely related to mosses or any plant. [6]: 3 Lichens do not have roots that absorb water and nutrients as plants do, [15]: 2 but like plants, they produce their own energy ...
The algae obtain water and protection from drying out and ultraviolet damage by the fungus. ... The ingenious strategies NH and Maine plants use to survive the ... Since lichens do not have roots ...
The water relations of cyanolichens are particularly complex in gelatinous species, where the cyanobacterial mucilage can absorb large amounts of water during hydration events. These lichens can undergo dramatic changes in thallus dimensions during wetting and drying cycles, sometimes expanding to several times their dry size when fully hydrated.
Lichens are known in which there is one fungus associated with two or even three algal species. Rarely, the reverse can occur, and two or more fungal species can interact to form the same lichen. [12] Both the lichen and the fungus partner bear the same scientific name, and the lichens are being integrated into the classification schemes for fungi.
Lichens are symbiotic organisms that play an important role in the biogeochemical cycle on Earth. The characteristics of lichens, such as strong resistance to factors such as desiccation, ability to grow and break down rocks allow lichen to grow in different types of environment including highly nitrogen limited area such as subarctic heath.
Even the thin water films coating mosses and lichens are sufficient for them and some can even live in sand dunes. They mainly eat the cell fluids of plants , algae, and fungi, which they suck out ...
The outer "skin" of the lichen, the cortex, is composed of closely packed fungal hyphae and serves to protect the thallus from water loss due to evaporation as well as harmful effects of high levels of irradiation. In Xanthoria parietina, the thickness of the thalli is known to vary depending on the habitat in which it grows. Thalli are much ...
Thallophyta is a division of the plant kingdom including primitive forms of plant life showing a simple plant body. Including unicellular to large algae, fungi, lichens. [5] The first ten phyla are referred to as thallophytes. They are simple plants without roots stems or leaves. [6] They are non-embryophyta. These plants grow mainly in water.