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Vacuolar H+-pyrophosphatase (V-PPase) expression increases in a number of abiotic stresses and is thought to play a role in adaptation to abiotic stresses. This paper reports on the regulation of six V-PPase genes in rice (Oryza sativa L.) coleoptiles under anoxia, using flood tolerant and intolerant cultivars to test our hypothesis. Quantitative PCR analysis showed that one vacuolar H+-pyrophosphatase...
An 808 bp promoter from a rice polyubiquitin gene, rubi3, has been isolated. The rubi3 gene contained an open reading frame of 1140 bp encoding a pentameric polyubiquitin arranged as five tandem, head-to-tail repeats of 76 aa. The 1140 bp 5′ UTR intron of the gene enhanced its promoter activity in transient expression assays by 20-fold. Translational fusion of the GUS reporter gene to the coding sequence...
We describe here a novel plant-specific gene, Lefsm1 (fruit SANT/MYB-like 1) harboring a single SANT/MYB domain. The expression of Lefsm1 is specific to the very early stages of tomato (Lycopersicon esculentum) fruit development. Ectopic expression of Lefsm1 results in severe developmental alterations manifested in retarded growth, and reduced apical dominance during tomato and Arabidopsis seedling...
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