"Trichomonads" Natural Recordings by Native Speakers
Trichomonads are a group of single-celled, flagellated protozoa that are responsible for a type of sexually transmitted infection (STI) in humans, known as trichomoniasis. They are shapeless, ameboid cells that move using whip-like structures called flagella. Trichomonads are typically found in the reproductive tract of humans and other animals.
In humans, trichomoniasis is usually caused by the protozoan parasite Trichomonas vaginalis, which infects the vagina in women and the urethra in men. The infection can be spread through sexual contact with an infected partner. Symptoms of trichomoniasis can include itching, burning, redness, and discharge from the affected area.
Trichomonads are also found in other animals, including protozoan animals such as anaerobic parasites, intestinal amoebas, and others. In some cases, trichomonads have been identified as commensals or ecotechnic endosymbionts in the host.
Trichomonads are often studied in cell biology labs due to their motility mechanism, subcellular organization, and flagella dynamics, making them a valuable model system for understanding cellular locomotion and the structure of flagella.
Trichomes are small, usually hair-like structures that protrude from the surface of plants, particularly flowers, buds, and leaves. They can take the form of tiny hairs, scales, or bristles and can serve various purposes, including:<br><br>1. Protection: Trichomes can deter herbivores and other predators by making it difficult for them to access the plant's softer tissues.<br>2. Moisture control: Trichomes can help regulate the amount of moisture on the plant's surface, preventing excessive water loss or water accumulation.<br>3. Chemical defense: Some trichomes produce chemicals that help protect the plant from pathogens, insects, and other harmful organisms.<br>4. Antitranspirants: Trichomes can reduce transpiration by reflecting sunlight and reducing heat gain.<br><br>In the context of cannabis, trichomes are particularly notable for producing the plant's psychoactive compounds, such as THC (tetrahydrocannabinol) and CBD (cannabidiol), among others. The glandular trichomes are sticky and resinous, and their density and color can indicate the plant's potency and quality.<br><br>In forensic science, trichomes have been used to analyze and identify plant species, including plants under the genus Cannabis.<br><br>In other areas, the term trichomes may also refer to similar structures on other organisms, such as fungi or insects.
noun Trichomonas: A genus of parasitic flagellated protozoa. Specifically, trichomonas vaginalis is a sexually transmitted parasitic flagellated protozoan, which can cause trichomoniasis, a disease that leads to changes in the discharge and inflammation of the cervix and vagina.
Trichonymphea or Trichonympha is a genus of amoebae belonging to the phylum Opalinida, the slime molds.