Monotoneisilla

Monotoneisilla is a genus of diatoms, a type of algae found in freshwater and marine environments. Diatoms are single-celled organisms with intricate, glass-like cell walls composed of silica. The genus Monotoneisilla belongs to the family Surirellaceae, which is characterized by its rectangular or elliptical cells with distinct, often symmetrical markings.

Members of Monotoneisilla are typically small, ranging from a few micrometers to tens of micrometers in length. Their cell walls exhibit a unique pattern of transverse and longitudinal striations, which can be used for taxonomic identification. The genus is distinguished by its relatively simple and uniform structure compared to other diatom genera, particularly in the absence of complex raphe systems (slits used for locomotion in some diatoms).

Monotoneisilla species are commonly found in freshwater habitats, including ponds, lakes, and slow-moving streams. They often attach to substrates such as rocks, sediment, or aquatic plants. These diatoms play a role in aquatic ecosystems by contributing to primary production and serving as a food source for small aquatic organisms.

Taxonomically, the genus was described in the late 19th century, though its classification has evolved with advancements in microscopy and molecular techniques. Some species within the genus may exhibit variations in morphology depending on environmental conditions, making identification challenging without detailed observation.

Monotoneisilla is of interest in ecological studies due to its sensitivity to water quality. Changes in diatom community composition, including shifts in Monotoneisilla populations, can indicate alterations in environmental conditions such as pollution or climate change. Researchers often study these organisms to monitor the health of freshwater ecosystems.