Gibberellins Are Modified by Methylation in Planta
نویسندگان
چکیده
منابع مشابه
Gibberellins are modified by methylation in planta.
Methylation, the attachment of a methyl group in place of a hydrogen atom, is a common modification to numerous biological substrates. Almost all classes of plant metabolite are known to be methylated, including amino acids, alkaloids, phenylpropanoids, sugars, sterols, thiols, flavonoids, and purines (D’Auria et al., 2003). Methylation affects structural characteristics of these metabolites th...
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Arabidopsis thaliana GAMT1 and GAMT2 encode enzymes that catalyze formation of the methyl esters of gibberellins (GAs). Ectopic expression of GAMT1 or GAMT2 in Arabidopsis, tobacco (Nicotiana tabacum), and petunia (Petunia hybrida) resulted in plants with GA deficiency and typical GA deficiency phenotypes, such as dwarfism and reduced fertility. GAMT1 and GAMT2 are both expressed mainly in whol...
متن کاملGibberellins
What are they? The gibberellins make up a family of small organic compounds derived from a common 20-carbon precursor. They regulate growth and development in plants and their chemical structure superficially resembles that of steroid hormones. So far, more than 100 gibberellins have been identified. Fortunately, any one plant species produces only a few of the known gibberellins. Furthermore, ...
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Upon submergence, Azorhizobium caulinodans infects the semiaquatic legume Sesbania rostrata via the intercellular crack entry process, resulting in lateral root-based nodules. A gene encoding a gibberellin (GA) 20-oxidase, SrGA20ox1, involved in GA biosynthesis, was transiently up-regulated during lateral root base nodulation. Two SrGA20ox1 expression patterns were identified, one related to in...
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RAS proteins are GTPases that participate in multiple signal cascades, regulating crucial cellular processes including cell survival, proliferation, differentiation, and autophagy. Mutations or deregulated activities of RAS are frequently the driving force for oncogenic transformation and tumorigenesis. Given the important roles of the small ubiquitin-related modifier (SUMO) pathway in controll...
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ژورنال
عنوان ژورنال: The Plant Cell
سال: 2007
ISSN: 1040-4651,1532-298X
DOI: 10.1105/tpc.107.050955