Thallus (pl.: thalli), from Latinized Greek θαλλός (thallos), meaning "a green shoot" or "twig", is the vegetative tissue of some organisms in diverse groups such as algae, fungi, some liverworts, lichens, and the Myxogastria.

Thallus, plant body of algae, fungi, and other lower organisms formerly assigned to the obsolete group Thallophyta. A thallus is composed of filaments or plates of cells and ranges in size from a unicellular structure to a complex treelike form.

In this article we will discuss about the thallus structure of lichens with the help of diagrams. In a lichen thallus, the phyco-symbiont and the myco-symbiont are intimately associated, but their identity is maintained.

In this article we will discuss about the thallus organisation found in algae. The plant body in algae is always a thallus. It is not differentiated in root, stem and leaves. Algae range in size from minute unicellular plants (less than 1 µ in diameter in some planktons) to very large highly differentiated multicellular forms e.g., some sea-weeds.

The thallus of algae is also called a thallus. It can be filamentous, lamellar, sifonal, bushy, roundish, ribbon-shaped, arrow-shaped. The shape of the thallus of these organisms is quite diverse not only in shape, but also in color: the body of the algae can be green, brown, red, yellow or yellow-green, brown.

The organism whose body structure is undifferentiated or resembles a thallus is commonly called thalloid, thalloid, thalli form, ethaline or thallus. The unique characteristic of the thallophytes is that they consume glucose as soon as it is produced in photosynthesis.

May 12, 2024 · Thallus organisation refers to the structural arrangement of the body of algae. Algae are categorized into three types of thallus organizations: unicellular, colonial, and multicellular. Each type has distinct characteristics and features.

Collectively the hyphae comprise the vegetative body (thallus) of a fungus which is called the mycelium. The hypha is thus a structural unit of the mycelium. It consists of a thin, transparent wall filled or lined with a layer of cytoplasm.

Thallus structure refers to the overall body form of certain non-flowering plants, such as algae and bryophytes, which lack true roots, stems, and leaves. This unique structure allows these organisms to perform essential life processes, such as photosynthesis and nutrient absorption, in a simple and efficient manner.

Dec 12, 2024 · In this article we will discuss about range of thallus organization in algae:- 1. Unicellular forms of thallus organization in algae, 2. Colonial forms of thallus organization in algae, 3. Filamentous forms of thallus organization in algae, 4. Heterotrichous forms, 5. Siphonous forms of thallus organization in algae and 6.