Addition of humic acid accelerates the growth of Euglena pisciformis AEW501 and the accumulation of lipids. - Fan, Panpan; Xu, Pingping; Zhu, Yuxuan; Tu, Xiaojie; Song, Gaofei; Zuo, Yanxia; Bi, Yonghong (Journal of Applied Phycology, 2022)