สิ่งแวดล้อม มลภาวะ ของเสีย
เอกสารมาตรฐาน
สหรัฐอเมริกา
APHA
SMWW 9230
Fecal Enterococci
2023
12
Standard methods for the examination of water and wastewater (543.3 APHA 24th ed. Ref. Treatises&monographs FL2)
In 1903, the genus name Enterococcus was proposed for Gram-positive, catalase-negative, coccoid-shaped bacteria of intestinal origin. Several years later, it was suggested that the genus name be changed to Streptococcus because the bacteria form chains of coccoid-shaped cells. Subsequently, the species was given the name faecalis because of their fecal origin. The genus name Streptococcus was adopted for the next 78 years and applied to coccoid-shaped, chain-forming, Gram-positive bacteria of intestinal origin...