Abstract：
:Duckweed is a kind of floating aquatic plant and increasing its starch production is favorable for bioenergy. In this study, we found that starch biosynthesis was greatly promoted by the supplement of nickel ion (Ni2+) through the comparison of other different ions. The starch content in duckweed was increased by nearly eightfold when duckweed was treated with 20 µM Ni2+. The analysis of paraffin sections visually found that starch granules were more complete and dark blue in Ni2+ treated duckweed than the control. Quantitative real-time PCR demonstrated that the expressions of starch synthesis-related enzymes were up-regulated in Ni2+ treated duckweed. Further analysis revealed that the accumulation of Ni2+ in duckweed effectively increased the activity of urease, which compensated for the deficiency of certain decrease in biomass and accelerated biosynthesis of the starch. Thus, our results represent another strategy to improve starch production of duckweed.
journal_name
J Plant Resjournal_title
Journal of plant researchauthors
Shao J,Liu Z,Ding Y,Wang J,Li X,Yang Ydoi
10.1007/s10265-020-01204-0subject
Has Abstractpub_date
2020-07-01 00:00:00pages
587-596issue
4eissn
0918-9440issn
1618-0860pii
10.1007/s10265-020-01204-0journal_volume
133pub_type
杂志文章abstract：:We isolated several mutants of Arabidopsis thaliana (L.) Heynh. that accumulated less anthocyanin in the plant tissues, but had seeds with a brown color similar to the wild-type. These mutants were allelic with the anthocyaninless1 (anl1) mutant that has been mapped at 15.0 cM of chromosome 5. We performed fine mappin...
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