Table 1.

Previous studies of Mo dependence of N₂ fixation and nitrate assimilation in cyanobacteria and algae.

Species name	Organism type	Aquatic habitat	Mo requirements by N source	Mo:C (μmol mol−1)	References
Nostoc/Anabaena sp.	Cyanobacterium	Freshwater	N2	–	Bortels, 1940
Chlorella pyrendoisa	Green alga	Freshwater	NO−3	–	Walker, 1953; Loneragan and Arnon, 1954
Anabaena cylindrica	Cyanobacterium	Freshwater	N2 > NO−3 > NH+4	–	Fogg and Wolfe, 1954; Wolfe, 1954; Fay and Vasconcelos, 1974; Jacob and Lind, 1977; Attridge and Rowell, 1997
Anabaena oscillarioides	Cyanobacterium	Freshwater	N2	0.1–3a	ter Steeg et al., 1986
Scenedesmus obliquus	Green alga	Freshwater	NO−3 > NH+4 ≅ urea	–	Arnon et al., 1955; Ichioka and Arnon, 1955
Scenedesmus acutus	Green alga	Freshwater	NO−3	–	Glass, 2011
Navicula pelliculosa	Diatom	Freshwater	NO−3	–	Wallen and Cartier, 1975
Chlamydomonas reinhardtii	Green alga	Freshwater	NO−3	–	Wallen and Cartier, 1975
Anacystis nidulansb	Cyanobacterium	Freshwater	NO−3 > NO−2 > NH+4	–	Peschek, 1979
Anabaena variabilis ATCC 29413	Cyanobacterium	Freshwater	N2	–	Attridge and Rowell, 1997; Zerkle et al., 2006
Nostoc sp. PCC 7120	Cyanobacterium	Freshwater	N2 > NO−3	0.2–132	Glass et al., 2010
Nostoc sp. CCMP 2511	Cyanobacterium	Coastal	N2 > NO−3	0.5–5.8	Glass et al., 2010
Aphanizomenon sp.	Cyanobacterium	Coastal	N2	0.8–2.0	Walve and Larsson, 2007
Nodularia spumigena	Cyanobacterium	Coastal	N2	0.8–2.0	Walve and Larsson, 2007
Trichodesmium erythraeum strain IMS101	Cyanobacterium	Marine	N2	1.0–6.6	Tuit et al., 2004
Trichodesmium (field samples from North Atlantic)	Cyanobacterium	Marine	N2	9–54	Tuit et al., 2004; Nuester et al., 2012
Crocosphaera watsonii strain WH8501	Cyanobacterium	Marine	N2	0.6–0.9	Tuit et al., 2004

^aCalculated by assuming that 45% of dry biomass weight is carbon.

^bRenamed Synechococcus elongatus PCC 7942.