Abstract：
:The adaptation of microorganisms to different temperatures is an advantage in habitats with steadily changing conditions and raises the question about temperature sensing. Here we show that in the filamentous fungus Aspergillus nidulans, the hybrid histidine kinase TcsB and phytochrome are involved in temperature-induced gene transcription. Temperature-activated phytochrome fed the signal into the HOG MAP kinase pathway. There is evidence that the photoreceptor phytochrome fulfills a temperature sensory role in plants and bacteria. The effects in plants are based on dark reversion from the active form of phytochrome, Pfr, to the inactive form, Pr. Elevated temperature leads to higher dark reversion rates, and hence, temperature sensing depends on light. In A. nidulans and in Alternaria alternata, the temperature response was light-independent. In order to understand the primary temperature response of phytochrome, we performed spectral analyses of recombinant FphA from both fungi. Spectral properties after heat stress resembled the spectrum of free biliverdin, suggesting conformational changes and a softening of the binding pocket of phytochrome, possibly mimicking photoactivation. We propose a novel function for fungal phytochrome as temperature sensor.
journal_name
Mol Microbioljournal_title
Molecular microbiologyauthors
Yu Z,Ali A,Igbalajobi OA,Streng C,Leister K,Krauß N,Lamparter T,Fischer Rdoi
10.1111/mmi.14395subject
Has Abstractpub_date
2019-12-01 00:00:00pages
1814-1830issue
6eissn
0950-382Xissn
1365-2958journal_volume
112pub_type
杂志文章abstract：:The genome of the Streptomyces temperate phage phiC31 integrates into the host chromosome via a recombinase belonging to a novel group of phage integrases related to the resolvase/invertase enzymes. Previously, it was demonstrated that, in an in vitro recombination assay, phiC31 integrase catalyses integration (attP/a...
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journal_title：Molecular microbiology
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journal_title：Molecular microbiology
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doi：10.1046/j.1365-2958.1997.2901655.x
更新日期：1997-03-01 00:00:00
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更新日期：1992-09-01 00:00:00
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pub_type： 杂志文章
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更新日期：2007-12-01 00:00:00
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pub_type： 杂志文章
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更新日期：2019-08-01 00:00:00
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pub_type： 杂志文章
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更新日期：2003-05-01 00:00:00
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journal_title：Molecular microbiology
pub_type： 杂志文章
doi：10.1111/j.1365-2958.1995.mmi_17040769.x
更新日期：1995-08-01 00:00:00
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