Effect of Artemisia sphaerocephala Krasch. Gum on the flotation separation of fluorite from calcite

2021 ◽  
Vol 174 ◽  
pp. 107249
Author(s):  
Hepeng Zhou ◽  
Zhizhao Yang ◽  
Yongbing Zhang ◽  
Wei Sun ◽  
Zhiyong Gao ◽  
...  
2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Xiumei Miao ◽  
Lijing Zhang ◽  
Xiaowei Hu ◽  
Shuzhen Nan ◽  
Xiaolong Chen ◽  
...  

Abstract Background Linoleic acid is an important polyunsaturated fatty acid, required for all eukaryotes. Microsomal delta-12 (Δ12) oleate desaturase (FAD2) is a key enzyme for linoleic acid biosynthesis. Desert shrub Artemisia sphaerocephala is rich in linoleic acid, it has a large FAD2 gene family with twenty-six members. The aim of this work is to unveil the difference and potentially functionality of AsFAD2 family members. Results Full-length cDNAs of twenty-one AsFAD2 genes were obtained from A. sphaerocephala. The putative polypeptides encoded by AsFAD2 family genes showed a high level of sequence similarity and were relatively conserved during evolution. The motif composition was also relatively conservative. Quantitative real-time PCR analysis revealed that the AsFAD2–1 gene was strongly expressed in developing seeds, which may be closely associated with the high accumulating ability of linoleic acid in A. sphaerocephala seeds. Although different AsFAD2 family members showed diverse response to salt stress, the overall mRNA levels of the AsFAD2 family genes was stable. Transient expression of AsFAD2 genes in the Nicotiana benthamiana leaves revealed that the encoded proteins were all located in the endoplasmic reticulum. Heterologous expression in Saccharomyces cerevisiae suggested that only three AsFAD2 enzymes, AsFAD2–1, − 10, and − 23, were Δ12 oleate desaturases, which could convert oleic acid to linoleic acid, whereas AsFAD2–1 and AsFAD2–10 could also produce palmitolinoleic acid. Conclusions This research reported the cloning, expression studies, subcellular localization and functional identification of the large AsFAD2 gene family. These results should be helpful in understanding fatty acid biosynthesis in A. sphaerocephala, and has the potential to be applied in the study of plant fatty acids traits.


2005 ◽  
Vol 29 (1) ◽  
pp. 122-127
Author(s):  
WANG Tie-Juan ◽  
◽  
YANG Chi ◽  
MA Jing ◽  
QIAO Shu-Jun ◽  
...  

2020 ◽  
Vol 144 ◽  
pp. 690-697 ◽  
Author(s):  
Xiaoxue Yao ◽  
Xiaolin Yao ◽  
Kai Xu ◽  
Kao Wu ◽  
Xiaoyu Chen ◽  
...  

2019 ◽  
Vol 43 (6) ◽  
pp. 2434-2437 ◽  
Author(s):  
Zongyi Zhang ◽  
Tiantian Chen ◽  
Hao Wang ◽  
Hui Zhang ◽  
Junyu Liang ◽  
...  

A sodium alginate and Artemisia sphaerocephala gum composite hydrogel prepared using a water/ethanol method shows enhanced mechanical and swelling properties.


2016 ◽  
Vol 152 ◽  
pp. 70-78 ◽  
Author(s):  
Junlong Wang ◽  
Qingyao Li ◽  
Aijuan Bao ◽  
Xiurong Liu ◽  
Junyuan Zeng ◽  
...  

2016 ◽  
Vol 52 (2) ◽  
pp. 320-321
Author(s):  
Meng Sun ◽  
Chao-Jun Chen ◽  
Ya Li ◽  
Kun Gao

2017 ◽  
Vol 8 (3) ◽  
pp. 1299-1312 ◽  
Author(s):  
Daoyuan Ren ◽  
Dehui Lin ◽  
Aamina Alim ◽  
Quan Zheng ◽  
Xingbin Yang

The aim of this study was to investigate the molecular mechanism underlying the immunomodulatory effect of the purified Artemisia sphaerocephala Krasch seed polysaccharide (ASKP-1) in RAW264.7 macrophages.


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