Table 1.

The negative and positive interaction modes between bacteria and microalgae.

Mode of interaction	Actions		References
Mutualism	Exchange of material between bacteria and microalgae	Vitamins	[1,40]
		Iron siderophores	[41]
		Vitamins, growth-promoting factors and DOC	[42,43] [37,44,45]
		Indole-3-acetic acid (IAA)	[[46], [47], [48]]
		Nitrogen	[49,50]
Competition	Scrambling for resources	Nitrate and DOC	[51]
		Nitrogen	[52]
Predation and parasitism	Inhibiting algal activity	Releasing of lytic enzymes	[[53], [54], [55], [56]]