NDLI: Microcolony Formation by Single-Cell Synechococcus Strains as a Fast Response to UV Radiation ▿

Content Provider	PubMed Central
Author	Callieri, Cristiana Lami, Andrea Bertoni, Roberto
Copyright Year	2011
Abstract	UV radiation (UVR) has different effects on prokaryotic cells, such as, for instance, filamentation and aggregation in bacteria. Here we studied the effect of UVR on microcolony formation in two freshwater Synechococcus strains of different ribotypes (group B and group I) and phycobiliprotein compositions (phycoerythrin [PE] and phycocyanin [PC]). Each strain was photoacclimated at two light intensities, low light (LL) (10 μmol m−2 s−1) and moderate light (ML) (100 μmol m−2 s−1). The cultures were exposed for 6 days to treatments with UVR or without UVR. PE-rich Synechococcus acclimated to LL had a low carotenoid/chlorophyll a (car/chl) ratio but responded faster to UVR treatment, producing the highest percentages of microcolonies and of cells in microcolonies. Conversely, the same strain acclimated to ML, with a higher car/chl ratio, did not aggregate significantly. These results suggest that microcolony formation by PE-rich Synechococcus is induced by UVR if carotenoid levels are low. PC-rich Synechococcus formed a very low percentage of microcolonies in both acclimations even with low car/chl ratio. The different responses of the two Synechococcus strains to UVR depend on their pigment compositions. On the other hand, this study does not exclude that UVR-induced microcolony formation could also be related to specific ribotypes.
Related Links	http://dx.doi.org/10.1128/aem.05392-11
Ending Page	7540
Page Count	8
Starting Page	7533
File Format	PDF
ISSN	00992240
e-ISSN	10985336
Journal	Applied and Environmental Microbiology
Issue Number	21
Volume Number	77
Language	English
Publisher	American Society for Microbiology
Publisher Date	2011-11-01
Access Restriction	Open
Rights Holder	American Society for Microbiology
Subject Keyword	Biotechnology Food Science Ecology Applied Microbiology and Biotechnology Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Ecology Food Science Applied Microbiology and Biotechnology Biotechnology

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Toxic Effects of Linear Alkylbenzene Sulfonate on Metabolic Activity, Growth Rate, and Microcolony Formation of Nitrosomonas and Nitrosospira Strains

Chromatic Adaptation in Marine Synechococcus Strains

Inactivation of Single-Celled Ascaris suum Eggs by Low-Pressure UV Radiation

Cell Cycle Regulation in Marine Synechococcus sp. Strains

Single-cell entrapment and microcolony development within uniform microspheres amenable to flow cytometry.

Biogenic Formation of As-S Nanotubes by Diverse Shewanella Strains▿ †

Ni Uptake and Limitation in Marine Synechococcus Strains▿

Coastal Strains of Marine Synechococcus Species Exhibit Increased Tolerance to Copper Shock and a Distinctive Transcriptional Response Relative to Those of Open-Ocean Strains▿ †

Low Salinity and High-Level UV-B Radiation Reduce Single-Cell Activity in Antarctic Sea Ice Bacteria▿

Microcolony Formation by Single-Cell Synechococcus Strains as a Fast Response to UV Radiation ▿

Similar Documents

Toxic Effects of Linear Alkylbenzene Sulfonate on Metabolic Activity, Growth Rate, and Microcolony Formation of Nitrosomonas and Nitrosospira Strains

Chromatic Adaptation in Marine Synechococcus Strains

Inactivation of Single-Celled Ascaris suum Eggs by Low-Pressure UV Radiation

Cell Cycle Regulation in Marine Synechococcus sp. Strains

Single-cell entrapment and microcolony development within uniform microspheres amenable to flow cytometry.

Biogenic Formation of As-S Nanotubes by Diverse Shewanella Strains▿ †

Ni Uptake and Limitation in Marine Synechococcus Strains▿

Coastal Strains of Marine Synechococcus Species Exhibit Increased Tolerance to Copper Shock and a Distinctive Transcriptional Response Relative to Those of Open-Ocean Strains▿ †

Low Salinity and High-Level UV-B Radiation Reduce Single-Cell Activity in Antarctic Sea Ice Bacteria▿

Microcolony Formation by Single-Cell Synechococcus Strains as a Fast Response to UV Radiation ▿