Analytical Study of Umbelliferone and Scopoletin Synthesis in Sweet Potato Roots Infected by Ceratocystis fimbriata
نویسندگان
چکیده
منابع مشابه
Analytical study of ipomeamarone & chlorogenic acid alterations in sweet potato roots infected by Ceratocystis fimbriata.
Several metabolic alterations have been studied, from biochemical and pathological viewpoints, in sweet potato roots infected by the black rot fungus, Ceratocystis finbriata (2, 11, 13), among which the formation of ipomeamarone is of particular interest. Because this substance is a unique furanoterpenoid produced by host tissues in response to infection, and because it has remarkable biologica...
متن کاملIntersterility, morphology and taxonomy of Ceratocystis fimbriata on sweet potato, cacao and sycamore.
Ceratocystis fimbriata is a large, diverse complex of species that cause wilt-type diseases of many economically important plants. Previous studies have shown that isolates in three monophyletic lineages within the Latin American clade of C. fimbriata are host-specialized to cacao (Theobroma cacao), sweet potato (Ipomoea batatas) and sycamore (Platanus spp.), respectively. We paired testers of ...
متن کاملDehydroipomeamarone as an Intermediate in the Biosynthesis of Ipomeamarone, a Phytoalexin from Sweet Potato Root Infected with Ceratocystis fimbriata.
Recently, we isolated dehydroipomeamarone, a new sesquiterpenoid from sweet potato (Ipomoea batatas Lam.) root tissue infected with Ceratocystis fimbriata (Ell. et Halst.). The purpose of this investigation was to determine whether dehydroipomeamarone was a precursor in the biosynthetic pathway of ipomeamarone. The incorporation of acetate-2-(14)C into ipomeamarone was markedly inhibited by the...
متن کاملProperties of a Mixed Function Oxygenase Catalyzing Ipomeamarone 15-Hydroxylation in Microsomes from Cut-Injured and Ceratocystis fimbriata-Infected Sweet Potato Root Tissues.
Ipomeamarone 15-hydroxylase activity was found in a microsomal fraction from cut-injured and Ceratocystis fimbriata-infected sweet potato (Ipomoea batatas Lam. cv. Norin No. 1) root tissues and its optimum pH was 8.0. The enzyme reaction required O(2) and NADPH. The K(m) values calculated for ipomeamarone and NADH were approximately 60 and 2 micromolar, respectively. NADPH alone had little effe...
متن کاملStudy of Ulcer Protective Effect of Ipomea batatas (L.) Dietary Tuberous Roots (Sweet Potato)
Peptic ulcer is one of the most prevalent gastrointestinal disorder, commonly occurs in developed countries. The present work was carried out to evaluate antiulcer effect of Ipomoea batatas (L) dietary tuberous roots. The Ethanolic extract of Ipomoea batatas (EEIB) was prepared by dynamic maceration for 7 days at room temperature using 70% ethanol (V/V). The antiulcer activity was evaluated...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1963
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.38.5.493