Abstract. Carotenoids are indispensable pigments of the photosynthetic apparatus in plants, algae, and cyanobacteria and are produced, as well, by many bacteria and fungi.bstract. Carotenoids are indispensable pigments of the photosynthetic apparatus in plants, algae, and cyanobacteria and are produced, as well, by many bacteria and fungi.
Less commonly, pharyngitis is caused by a bacterial infection. Bacterial infections do require antibiotics. The most common bacterial infection of the throat is strep throat, which is caused by streptococcus A. Rare causes of bacterial pharyngitis include gonorrhea, chlamydia, and corynebacterium.iral Infection. Pharyngitis is most commonly caused by viral infections such as the common cold, influenza, or mononucleosis. Viral infections do not respond to antibiotics, and treatment is only necessary to help relieve symptoms.
Bacterial infection. A bacterial infection can also cause a sore throat. These types of infections include: strep throat, which is an inflammation of the throat caused by the Streptococcus pyogenes bacteria. diphtheria, which causes throat inflammation. whooping cough, which affects the respiratory mucous membrane.