Pressure affects transcription profiles of Methanocaldococcus jannaschii despite the absence of barophilic growth under gas-transfer limitation.
Environ Microbiol, 2006/11;8(11):2031-5.
Boonyaratanakornkit B[1], Córdova J, Park CB, Clark DS
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PMID: 17014501
Impact factor: 5.476
Abstract
Barophilic growth of the hyperthermophilic methanarchaeon Methanocaldococcus jannaschii occurred when gas-substrate availability did not limit growth. In contrast, when growth was limited by gas transfer, no enhancement of growth was evident and a stress response was exhibited at both high and low pressure. A pressure-induced transcriptional response was evident, regardless of whether growth was enhanced by pressure. Potential high-pressure adaptation of a barophilic organism can thus occur at the transcriptional level, even though the cells are stressed by low substrate availability and do not exhibit accelerated growth.
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