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Chemical changes in cell envelope and poly-β-hydroxybutyrate during short term starvation of a marine bacterial isolate

Malmcrona-Friberg, Karin ; Tunlid, Anders LU ; Mårdén, Per ; Kjelleberg, Staffan and Odham, Göran (1986) In Archives of Microbiology 144(4). p.340-345
Abstract

Qualitative and quantitative changes were observed in lipids, poly-β-hydroxybutyrate (PHB), and a cell wall peptidoglycan consitutent in a marine bacterial isolate during starvation for 24 h in an energy and nutrient-free medium. While the amount and composition of the membrane fatty acids fluctuated within the first hours of starvation, the total amount of fatty acids decreased during the starvation period. Furthermore, the ratio of monounsaturated to saturated fatty acids decreased and the proportion of short chain fatty acids increased. In the very early phase of starvation the bacteria contained PHB, which had been accumulated during the growth phase, but after 3 h no PHB was detected. Cells starved for phosphorus showed a different... (More)

Qualitative and quantitative changes were observed in lipids, poly-β-hydroxybutyrate (PHB), and a cell wall peptidoglycan consitutent in a marine bacterial isolate during starvation for 24 h in an energy and nutrient-free medium. While the amount and composition of the membrane fatty acids fluctuated within the first hours of starvation, the total amount of fatty acids decreased during the starvation period. Furthermore, the ratio of monounsaturated to saturated fatty acids decreased and the proportion of short chain fatty acids increased. In the very early phase of starvation the bacteria contained PHB, which had been accumulated during the growth phase, but after 3 h no PHB was detected. Cells starved for phosphorus showed a different pattern as PHB was initially accumulated and did not decrease until 5 h of starvation. Synthesis of the cell wall amino acid d-alanine was initiated during the first phase of starvation. The effects of these changes on membrane fluidity and uptake of substrates as well as the use of fatty acids and PHB as energy resources during starvation are discussed.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
d-Alanine, Fatty acid composition, Marine bacteria, Poly-β-hydroxybutyrate, Starvation
in
Archives of Microbiology
volume
144
issue
4
pages
340 - 345
publisher
Springer
external identifiers
  • scopus:0022445924
ISSN
0302-8933
DOI
10.1007/BF00409882
language
English
LU publication?
yes
id
84b1f7b1-6cc3-44c0-84f9-2f1288c51b5a
date added to LUP
2019-10-23 17:34:02
date last changed
2020-01-13 02:28:41
@article{84b1f7b1-6cc3-44c0-84f9-2f1288c51b5a,
  abstract     = {<p>Qualitative and quantitative changes were observed in lipids, poly-β-hydroxybutyrate (PHB), and a cell wall peptidoglycan consitutent in a marine bacterial isolate during starvation for 24 h in an energy and nutrient-free medium. While the amount and composition of the membrane fatty acids fluctuated within the first hours of starvation, the total amount of fatty acids decreased during the starvation period. Furthermore, the ratio of monounsaturated to saturated fatty acids decreased and the proportion of short chain fatty acids increased. In the very early phase of starvation the bacteria contained PHB, which had been accumulated during the growth phase, but after 3 h no PHB was detected. Cells starved for phosphorus showed a different pattern as PHB was initially accumulated and did not decrease until 5 h of starvation. Synthesis of the cell wall amino acid d-alanine was initiated during the first phase of starvation. The effects of these changes on membrane fluidity and uptake of substrates as well as the use of fatty acids and PHB as energy resources during starvation are discussed.</p>},
  author       = {Malmcrona-Friberg, Karin and Tunlid, Anders and Mårdén, Per and Kjelleberg, Staffan and Odham, Göran},
  issn         = {0302-8933},
  language     = {eng},
  month        = {05},
  number       = {4},
  pages        = {340--345},
  publisher    = {Springer},
  series       = {Archives of Microbiology},
  title        = {Chemical changes in cell envelope and poly-β-hydroxybutyrate during short term starvation of a marine bacterial isolate},
  url          = {http://dx.doi.org/10.1007/BF00409882},
  doi          = {10.1007/BF00409882},
  volume       = {144},
  year         = {1986},
}