| Literature DB >> 8910282 |
P Ren1, C S Lim, R Johnsen, P S Albert, D Pilgrim, D L Riddle.
Abstract
The Caenorhabditis elegans dauer larva is specialized for dispersal without growth and is formed under conditions of overcrowding and limited food. The daf-7 gene, required for transducing environmental cues that support continuous development with plentiful food, encodes a transforming growth factor-beta (TGF-beta) superfamily member. A daf-7 reporter construct is expressed in the ASI chemosensory neurons. Dauer-inducing pheromone inhibits daf-7 expression and promotes dauer formation, whereas food reactivates daf-7 expression and promotes recovery from the dauer state. When the food/pheromone ratio is high, the level of daf-7 mRNA peaks during the L1 larval stage, when commitment to non-dauer development is made.Entities:
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Year: 1996 PMID: 8910282 DOI: 10.1126/science.274.5291.1389
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728