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|標題:||Understanding cellular defence in kumquat and calamondin to citrus canker caused by Xanthomonas citri subsp. citri||作者:||Chen, Po-Sheng
|關鍵字:||Antioxidants;Citrus aurantifolia;Citrus grandis;Citrus mitis;Flavonoids;Fortunella margarita;Hypersensitive reaction;Hydrogen peroxide;Phenolics;Xanthomonas citri subsp. citri||Project:||Physiological and Molecular Plant Pathology, Volume 79||摘要:||
Histopathological assays gain physiological insights into the mechanisms by which kumquat and calamondin
are resistant to citrus canker caused by Xanthomonas citri subsp. citri (Xcc). Unlike Mexican lime,
which is highly susceptible to Xcc, calamondin and kumquat leaves challenged with Xcc developed rapid
necrosis, resembling a hypersensitive reaction. Fluorescent microscopy examination identified fluorescent
materials around the necrotic lesions in kumquat and calamondin leaves challenged with Xcc, but
not in Mexican lime. The resistant cultivars inoculated with Xcc exhibited lower antioxidant enzymatic
activities and accumulated less H2O2. These modifications serve as physical barriers to ward off pathogen,
thereby suppressing lesion development.
|Appears in Collections:||植物病理學系|
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