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Palkova Z, et al.  (2002) Ammonia pulses and metabolic oscillations guide yeast colony development. Mol Biol Cell 13(11):3901-14

Abstract: On solid substrate, growing yeast colonies alternately acidify and alkalinize the medium. Using morphological, cytochemical, genetic, and DNA microarray approaches, we characterized six temporal steps in the "acid-to-alkali" colony transition. This transition is connected with the production of volatile ammonia acting as starvation signal between colonies. We present evidence that the three membrane proteins Ato1p, Ato2p, and Ato3p, members of the YaaH family, are involved in ammonia production in Saccharomyces cerevisiae colonies. The acid-to-alkali transition is connected with decrease of mitochondrial oxidative catabolism and by peroxisome activation, which in parallel with activation of biosynthetic pathways contribute to decrease the general stress level in colonies. These metabolic features characterize a novel survival strategy used by yeast under starvation conditions prevalent in nature.

Status: Published Type: Journal Article PubMed ID: 12429834

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AAC3 AAT1 ACO1 ACS1 ADY2 ALD4 ALD5 ATO2 ATO3 ATP15
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ATP2 CAT2 CHA1 CIT3 COX13 COX4 COX5A COX9 CTA1 CTT1
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Topics Genes linked to topics (#21 - 30 )
DCI1 ECI1 FAA2 FOX2 FUM1 GCV1 HSP30 ICL2 IDH1 IDH2
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Topics Genes linked to topics (#31 - 40 )
IDP3 MCH4 MCH5 MDH1 MIR1 MSN4 NDI1 OAC1 ODC1 PET9
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Topics Genes linked to topics (#41 - 50 )
PEX11 PHO84 PHO89 PIC2 PMA1 PMA2 POR1 POT1 POX1 PXA1
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Topics Genes linked to topics (#51 - 60 )
PXA2 QCR2 QCR7 SDH1 SFC1 SRY1 SUL1 SUL2 THI73 TIM17
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Topics Genes linked to topics (#61 - 64 )
YGP1 YJL045W YMR018W ZRT1
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