Lichens symbiotic associations between an alga or cyanobacterium ( the photobiont ) and a fungus ( the mycobiont ) 地衣：蓝、绿藻类（共生光合生物）和真菌（地衣共生菌）所形成的共生复合体。
2.
The colonization of land by eukaryotes isthought to have been established through the symbiosis of a fungus and aphotosynthesizing organism ( gehrig et al . 1996 ; heckman et al . 2001 ) 经过真菌和光合生物的共生使真核生物在陆地上集群已经被认为确立。
3.
Spirulina is a species of blue - green alga found to exist on earth for billions of years . it survives best in extremely alkaline and pollution - free environment 蓝藻又名螺旋藻，是地球上最早出现的光合生物，其外观呈蓝绿色，形状在显微镜底下呈现螺旋形。
