Responses of Marine Diatom Skeletonema marinoi to Nutrient Deficiency: Programmed Cell Death
- 21 January 2020
- journal article
- research article
- Published by American Society for Microbiology in Applied and Environmental Microbiology
- Vol. 86 (3)
Abstract
Our study showed how the ubiquitous diatom S. marinoi responded to different nutrient limitations with PCD in terms of physiological, morphological, biochemical, and molecular characteristics. Some PCD-related genes (PDCD4, GOX, and HSP90) induced by N deficiency were relatively upregulated compared to those induced by P deficiency. In contrast, the expression of the TSG101 gene in S. marinoi showed a clear and constant increase during P limitation compared to N limitation. These findings suggest that PCD is a complex mechanism involving several different proteins. The systematic mRNA level investigations provide new insight into understanding the oxidative stress- and cell death-related functional genes of diatoms involved in the response to nutrient fluctuations (N or P stress) in the marine environment.Keywords
Funding Information
- National Key Research and Development Program of China (2017YFC1404402)
- Scientific and Technological Innovation Project of the Qingdao National Laboratory for Marine Science and Technology (2016ASKJ02)
- National Natural Science Foundation of China (41976133)
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