Phosphorus deficiency, nitrogen assimilation and akinete differentiation in the cyanobacteriumAnabaena torulosa

1992 ◽  
Vol 37 (3) ◽  
pp. 223-226 ◽  
Author(s):  
T. A. Sarma ◽  
J. I. S. Khattar



Crop Science ◽  
1985 ◽  
Vol 25 (6) ◽  
pp. 1011-1015 ◽  
Author(s):  
Donald A. Phillips ◽  
Scott D. Cunningham ◽  
Eulogio J. Bedmar ◽  
T. Colleen Sweeney ◽  
Larry R. Teuber




2021 ◽  
Vol 288 ◽  
pp. 110315
Author(s):  
Xiaoyang Sun ◽  
Qianjiao Zheng ◽  
Liangbing Xiong ◽  
Fuchun Xie ◽  
Xun Li ◽  
...  


Marine Drugs ◽  
2021 ◽  
Vol 19 (6) ◽  
pp. 337
Author(s):  
Feng Li ◽  
Ning Zhang ◽  
Yulei Zhang ◽  
Qingsheng Lian ◽  
Caiying Qin ◽  
...  

Natural astaxanthin helps reduce the negative effects caused by oxidative stress and other related factors, thereby minimizing oxidative damage. Therefore, it has considerable potential and broad application prospects in human health and animal nutrition. Haematococcus pluvialis is considered to be the most promising cell factory for the production of natural astaxanthin. Previous studies have confirmed that nonmotile cells of H. pluvialis are more tolerant to high intensity of light than motile cells. Cultivating nonmotile cells as the dominant cell type in the red stage can significantly increase the overall astaxanthin productivity. However, we know very little about how to induce nonmotile cell formation. In this work, we first investigated the effect of phosphorus deficiency on the formation of nonmotile cells of H. pluvialis, and then investigated the effect of NaCl on the formation of nonmotile cells under the conditions of phosphorus deficiency. The results showed that, after three days of treatment with 0.1% NaCl under phosphorus deficiency, more than 80% of motile cells had been transformed into nonmotile cells. The work provides the most efficient method for the cultivation of H. pluvialis nonmotile cells so far, and it significantly improves the production of H. pluvialis astaxanthin.





2021 ◽  
Vol 265 ◽  
pp. 108104
Author(s):  
Santiago Julián Kelly ◽  
María Gabriela Cano ◽  
Diego Darío Fanello ◽  
Eduardo Alberto Tambussi ◽  
Juan José Guiamet




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