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A group of plant proteins, expansins, have been identified as wall-loosening factors and as facilitators of cell expansion in vivo. The root knot nematode Meloidogyne javanica establishes a permanent feeding site composed of giant cells surrounded by gall tissue. We used quantitative PCR and in situ localization to demonstrate the induction of a tomato (Lycopersicon esculentum cv. VF36) expansin (...
Nematodes are among the most successful organisms in withstanding stress conditions associated with water loss, and viable individuals have been recovered from dry desert soils. Little is known about the biochemical and molecular events underpinning nematodes’ physiological responses to dehydration. Post-genomics research in Caenorhabditis elegans may offer an opportunity to understand the stress...
In order to establish a functional role for late embryogenesis abundant (LEA) proteins in response to stress conditions in Caenorhabditis elegans, we silenced the expression of an LEA (Ce-lea-1) gene and determined the survival of worms under stress conditions. Ce-lea-1 transcription was induced during dehydration of C. elegans dauer juveniles. Following partial silencing of Ce-lea-1 transcription,...
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