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Analysis of Beta-1, 3-Glucanase Genes from Strawberry Plants
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Plant beta-1, 3-glucanases are pathogenesis-related§proteins, which are implicated in plant defense§responses against pathogen infection.§§Two genomic clones, FaBG2-1 and FaBG2-2, and a cDNA§clone, FaBG2-3, encoding three different beta-1,§3-glucanases, are found in strawberry plants. In this§book, the expression of FaBG2-1 and FaBG2-3 in§strawberry plants infected with Colletotrichum§fragariae and Colletotrichum acutatum--two important§strawberry fungal pathogens--are examined. High§levels of induction of both genes were observed in§plants infected with C. fragariae, whereas lower§levels of induction were observed in plants infected§with C. acutatum. The expression of FaBG2-3 was much§greater than FaBG2-1 in both the uninfected and the§infected plants.§§The expressions of FaBG2-1 and FaBG2-3 in leaves,§crowns, and roots were also examined at different§time points during a 7 month growth period. Different§organs showed different expression patterns for the§two genes. This research shows that beta-1,§3-glucanase in strawberry plant may play an§important roles in plant defense and development.
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