A rdenticatena

Abstract Ar.den.ti.ca.te'na. L. adj. ardens ‐entis hot; L. fem. n. catena chain; N.L. fem. n. Ardenticatena hot chain‐shaped organism. Chloroflexi / Ardenticatenia / Ardenticatenales / Ardenticatenaceae / Ardenticatena Multicellular filaments of indefinite length, unbranched, and undifferentiated. Individual cells are 0.2–0.5 µm in diameter and 2 µm in length. Nonmotile. Grow under aerobic or anaerobic conditions using nitrate of ferric iron as a terminal electron acceptor. Thermophilic with optimum growth temperature between 55 and 70°C. Neither photosynthetic nor fermentative growth is observed. Spores are not formed. The cellular fatty acids consist primarily of saturated fatty acids (e.g., C 22:0 and C 19:0 ). DNA G + C content (mol%) : 51.5 (HPLC). Type species : Ardenticatena maritima Kawaichi, Ito, Kamikawa, Sugawara, Yoshida and Sako 2013a, 2999 VP .