Endogenous Gibberellins in Aeginetia indica,a Parasitic Plant,and Its Host,Miscanthus sinensis |
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Abstract: | Endogenous gibberellins in a parasitic plant, Aeginetia indica L., and its host, Miscanthus sinensis Andress (eulalia) were analyzed. Gibberellins of the early-non-hydroxylation pathway and their putative metabolites were identified as the major endogenous gibberellins from both types of A. indica parasitizing M. sinensis and parasitizing Oryza sativa L. (rice). Members of both the early-non- and early-13-hydroxylation pathways were detected in the host M. sinensis. Since the early-13-hydroxylation pathway has been reported to be the major pathway operating in vegetative tissues of O. sativa, these results suggest that A. indica can biosynthesize gibberellins independent of its hosts. |
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