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Xiang Gao, Haiyan Xu, Shuifeng Ye and Wenyu Liang
Nostoc flagelliforme, a filamentous nitrogen-fixing cyanobacterium, is widely distributed in arid steppes of the west and northwestern parts of China. However, as a food delicacy this species has been overexploited from 1970 to 2000. Moreover, ove...
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