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Hemoglobin (Hb) genes are ubiquitous in plants. Several classes have been identified and are expressed during infection by nitrogen-fixing symbionts, as a result of tissue hypoxia, during seed germination, and in developing (e.g. meristematic) tissues. The induction of the Hb gene by hypoxia is linked to a decrease in ATP levels and is mediated by Ca 2+ . Numerous investigations have led to...
In this study we report the cloning, sequence, and characterization of Hor v 9 allergen cDNAs from barley (Hordeum vulgare) pollen. Structural homologues of Kentucky bluegrass (Poa pratensis) group 9 pollen allergens were identified in a cDNA library of barley pollen expressed mRNAs. The Hor v 9 cDNA clone (hvp9742) contained an open reading frame encoding 313 amino acids which included a putative...
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