Journal
JOURNAL OF APPLIED PHYCOLOGY
Volume 30, Issue 2, Pages 839-850Publisher
SPRINGER
DOI: 10.1007/s10811-017-1267-3
Keywords
Alkaline phosphatase; Cyanobacteria; Dissolved organic phosphorus; Distribution
Funding
- National Natural Science Foundation of China [21276099, 41301318, 41473072]
- Specialized Research Found for the Doctoral Program of Higher Education of China [20120172120045]
- Fundamental Research Funds for the Central Universities [2015ZM171]
Ask authors/readers for more resources
Phosphorus is a vital nutrient for cyanobacterial growth. Aside from dissolved inorganic phosphorus, dissolved organic phosphorus (DOP) is used by cyanobacterial species via the activity of alkaline phosphatase (APase), which likely plays an important role in acquiring phosphorus for algal growth in the same manner as it does in other bacteria. In this work, APase genes phoA, phoD, and phoX were found distributed in the cyanobacterial strains included in the algal genome collection of the NCBI database. PhoX has a wider distribution than the classical phoA and phoD. Furthermore, multiple types of APase genes were simultaneously identified in a single strain or genome. Anabaena flos-aquae FACHB-245 was selected as a typical strain to study the performance of cyanobacteria growing on DOP. In algal growth involving AMP or lecithin, APase regulates the release of phosphorus from DOP as confirmed by the relative quantification of phoD and phoX expression levels. Our results confirmed that the distribution of APase is prevalent in cyanobacteria and thus provides a new insight into the potential role of cyanobacterial APase on phosphorus acquisition in natural environment.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available