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- W4281729401 abstract "The role of extracellular DNA (exDNA) in soil and aquatic environments was mainly discussed in terms of source of mineral nutrients and of genetic material for horizontal gene transfer. Recently, the self-exDNA (conspecific) has been shown to have an inhibitory effect on the growth of that organism, while the same was not evident for nonself-exDNA (non conspecific). The inhibitory effect of self-exDNA was proposed as a universal phenomenon, although evidence is mainly reported for terrestrial species. The current study showed the inhibitory effect of self-exDNA also on photosynthetic aquatic microorganisms. We showed that self-exDNA inhibits the growth of the microalgae Chlamydomonas reinhardtii and Nannochloropsis gaditana, a freshwater and a marine species, respectively. In addition, the study also revealed the phenotypic effects post self-exDNA treatments. Indeed, Chlamydomonas showed the formation of peculiar heteromorphic aggregates of palmelloid cells embedded in an extracellular matrix, favored by the presence of DNA in the environment, that is not revealed after exposure to nonself-exDNA. The differential effect of self and nonself-exDNA on both microalgae, accompanied by the inhibitory growth effect of self-exDNA are the first pieces of evidence provided for species from aquatic environments." @default.
- W4281729401 created "2022-06-13" @default.
- W4281729401 creator A5001506464 @default.
- W4281729401 creator A5006477031 @default.
- W4281729401 creator A5017910569 @default.
- W4281729401 creator A5036777218 @default.
- W4281729401 creator A5052003831 @default.
- W4281729401 creator A5058690868 @default.
- W4281729401 creator A5089644399 @default.
- W4281729401 date "2022-05-27" @default.
- W4281729401 modified "2023-09-30" @default.
- W4281729401 title "Effects of Extracellular Self- and Nonself-DNA on the Freshwater Microalga Chlamydomonas reinhardtii and on the Marine Microalga Nannochloropsis gaditana" @default.
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